Chapter 3: Improving Implementation and Institutionalization

3.1 Using a Full Range of Mutually Supporting Implementation Capabilities
3.2 Mobilizing Political Support & Resources
3.3 Strengthening System Wide Capacities for AQM
3.4 Institutionalizing Participation & Coordination
3.5 Monitoring & System Feedback

Once strategies have been formulated, the important phase of their implementation commences. This also involves consolidation of these new policies, as well as their institutionalization in the long-term. In this chapter, strategies for a successful long-term consolidation of Air Quality Management strategies are discussed.


3.1 Using a Full Range of Mutually-Supporting Implementation Capabilities

3.1.1 Using the Full Range of Implementation Capabilities

It has proven to be useful if cities apply the widest range of means of implementation to achieve urban air quality improvement. As discussed in chapter two, strategies should make use of a set of instruments. Cities should not rely solely on legislation or investment but use a mix of implementation instruments including information campaigns, economic incentives, or public disclosure.

Box Y: Examples of Complementary Implementation Instruments for the
Effective Phase-Out of Leaded Gasoline

1. Policy and Law:

  • Set phased standards for the lead content in gasoline (finally, it should be zero). Standards should be realistic and discussed within a working group so that it is possible for the relevant stakeholders to switch to unleaded gasoline;
  • Set air quality standards and build up ambient air monitoring network;
  • Set vehicle emission standards and implement vehicle emission tests;
  • Strengthen the regulatory and inspection institutes.

2. Economic:
Implement fiscal incentives to create a price structure favouring unleaded gasoline.
Differentiating existing tax rates or imposing a specific environmental or lead tax on leaded gasoline are measures of corrective taxation, reflecting the differences in health damage caused by leaded and unleaded gasoline brands. Experiences have shown that there is a strong connection between the market share of unleaded gasoline and the level of tax differential in favour of unleaded gasoline. The tax difference can cover the additional costs of refinery conversion and the higher production costs of using new additives.

3. Communication and Information:
Focus on broad public information, education and training to specific audiences. The campaign could start with the general public being informed on the change to unleaded gasoline. This can then be followed by appropriate information and communication campaigns for specific groups like the owners of petrol stations, garages, the car sales sector, and others.

3.1.2 Developing Packages of Mutually Supportive Interventions

Cities have found that interventions become more effective when formulated in sets of mutually supportive actions, so as to ensure that they are not contradictory and do not overlap in an unintended way. By interlinking planned interventions, the overall impact can be greatly increased. This is precisely the advantage of developing interventions through multi-actor and multi-disciplinary working groups. Investments are also more likely to be mobilized when their linkage to a strategic framework is clear and when they are part of a mutually supportive package of interventions. Such investments have the potential to attract additional funding.


3.2 Mobilization of Political Support and Resources

Political will is paramount to the successful implementation of strategies. Needless to say, both human and financial resources form the backbone for implementation. The resource issue is a major issue, particularly in cities in developing countries where priority still lies largely with direct measures to develop infrastructure and alleviate poverty.

And yet, as the adverse effects of air pollution continue to mount, the cost of not addressing air quality will continue to grow. Urban air pollution is a serious threat in many developing countries, aggravating poverty as emissions caused by transport and industry are affecting the health of urban residents. The transport sector is the main source for urban air pollution and greenhouse gases in developing countries. The WHO estimates that the worldwide cost of air pollution is close to 1 billion USD. In developed countries the costs of air pollution are equal to approximately 2% of GDP, while in developing countries this is between 5 and 20 % of their GDP.


3.2.1 Mobilizing Political Support

Political will is critical for a successful implementation of AQM strategies, and in making things happen on the ground. The support of political leaders from both the national and local (city) level is absolutely essential to make efforts to improve air quality effective.

Once a working group has designed a strategy, this strategy needs to be adopted before it can be implemented. Often, the issue-specific working groups designing the strategies cannot adopt the strategy for the organizations responsible for implementation. The city council, the municipal directors, other concerned government ministries, are the parties who must agree with and approve the proposed strategies; and more importantly, who will identify and assign staff and financial resources for its implementation. However, being part of the consultative processes these decisions can easily be achieved.

The working group on air quality issues should have representation from all the organizations involved in urban air quality. More importantly, for desired benefits in terms of successful implementation, a working group must be composed of members of organizations whose roles can be directly linked to the implementation of strategies. Political leaders at the city or national levels usually head such organizations. It might not be possible to determine such members at the very beginning. It will thus be useful, depending on the nature of the strategy, to identify other members who can be directly involved in strategy implementation and enlist their support at this earlier stage. It is assumed that these members consult with their constituencies or organizations so that the strategy selected will not come as a surprise to the responsible institutions, and its adoption is facilitated. It is understood that not in all cases will there be a guarantee of strategy adoption even with this support. There are examples where inter-agency working groups with representation from all stakeholders developed a strategy that was not endorsed later for implementation by those concerned.

Apart from directly involving representatives from possible implementing agencies headed by elected officials, it is important to identify persons/ public figures who will promote awareness campaigns on air quality issues and strategies to be adopted. These people may include sportsmen and women, movie stars, etc. The involvement of these personalities enhances public information, education and communication (IEC), which is a vital means of developing political support for strategies (policies, programmes and projects) needed for an integrated air quality management plan. The role of NGO's in amplifying an issue and drawing the public's attention should also not be overlooked.

Another way to initially mobilize political support for air quality management is to illustrate the gravity and enormity of the adverse effects of air pollution. The tools described under 'setting priorities' could assist in assessing the adverse effects.

Box Z: The Light Rail System in Salt Lake City: A Success Due to Political Support

Initially, there was much opposition to the introduction of the light rail system, the TRAX, by the Utah Transit Authority in Salt Lake City, USA. Many thought it would never work because residents would not change from car to rail. But because there was much political weight and support (through the elected mayor's office) for this strategy to reduce pollution and manage transport in the city, the rider projections were exceeded by 40%. The TRAX succeeded in attracting first-time public transport users with an estimated 45% TRAX riders new to public transit.

It has been proven that, if political will and organizational support are sustained and a participatory approach with open involvement is taken, it will be easier to mobilize and apply the necessary technical and financial resources for successful strategy implementation.

3.2.2 Mobilizing Resources

While all strategies need human resources for implementation, most strategies formulated will require additional financial resources for their implementation. A number of ways can be explored in order to obtain the required resources. These include both internal and external means of financing strategy implementation as discussed below.


a) Mobilizing Resources Internally

- Funding from the government's regular budget

Resource mobilization becomes a much easier practice when there is a broad-based participatory approach to strategy formulation and action planning. This includes gaining the necessary political will and organizational support for the strategy.

From the political angle, this means that funds could be allocated from the government regular budget for purposes of fulfilling the financial requirements of the strategy, including hiring of technical expertise.

- Funding from environmental funds and taxes

There are other ways to obtain funding. The introduction of the "polluter pays" principle can generate a seed fund to be used for environmental purposes such as the implementation of air quality strategies. This approach is known to be successful in a number of countries where it is practiced. Some countries also have so-called 'green taxes'. Proceeds from such taxes (usually collected from persons or companies committing environmental offences or charges for products perceived not to be environmentally friendly in order to discourage their marketability) can also be used to fund strategies for air quality improvement.

For example, in Taiwan, these funds are available for financing innovative ideas and approaches (like research as an implementation tool) to address air quality issues. These funds are used as grants for research. In Poland, the Environmental Fund is used to finance environmental investments, provide technical assistance to industries, and given as grants for research and for local environmental projects of the voivods (provinces).

Box AA: Using "Polluter Pays" Funds to Implement Strategies in Taiwan

The introduction of the polluter pays approach in Taiwan brought in sufficient revenues to raise the Environmental Pollution Control Board (EPB) to the level of an autonomous financial power. These funds are used to finance innovative ideas and approaches to air quality management. The funds allowed the introduction of LPG taxis at subsidized rates as well as financed research on community-based composting approaches to reduce the solid waste management problem. This pollution tax fund also opened opportunities to attract cross-institutional partnerships, which are very necessary for coordination and implementation of air quality management practices.

However, it is important to note that in certain cases, revenue from such funds have been difficult to count on for a number of reasons. The revenue may flow into general government funds and become unaccountable and inaccessible due to loss of interest of the collecting agency. Also, issues of political sensitivity, as well as lack of awareness and lack of commitment to the purpose may shroud these funds. The working group should therefore involve the agencies responsible for the funds in their work, and at the same time, develop a keen interest in its collection and use.

- Partnerships with the private sector

Engaging the private sector in the early stages of the process can be beneficial during implementation. This makes sense on two counts:

(1) this sector directly controls many forces that influence the air quality situation in a city, and
(2) the private sector in many cases is financially 'powerful'.

Given that the overriding motivation of this sector is profit, it becomes necessary to come prepared with negotiation skills as well as incentives in order to enlist the private sector's support for implementation. One way of doing this is to involve companies early on in information gathering and strategy formulation. This should be done not only to get their views and tap their expertise on air quality issues, but also to give them a sense of ownership of the strategies to be adopted and, indeed, of the entire process. Providing incentives such as subsidies can only further their interest in strategies to be adopted and influence their decision to financially support the implementation of such strategies. It is worth noting that subsidies are not always needed. For example, in Cairo or Delhi, the conversion of taxis from petrol to compressed natural gas was successful without subsidies because of good payback to the taxi owners. CNG is locally available and not imported; therefore the price is competitive.

Box BB: Private Sector Support in Manila through Incentive

In Manila, the Philippines, a private company supported the city's air quality-monitoring programme by setting up air quality monitoring stations in strategic areas of the metropolis. In turn, the company was allowed to use spaces on the monitoring stations to sell advertising space.


Box CC: Government Subsidy to Refineries in India

In India, there was a debate between the vehicle manufacturers and fuel companies through committees that were moderated by the Central Pollution Control Board (CPCB). The stakeholders agreed on improved fuel quality standards. To finance this, the government of India provided a subsidy to the refineries.

It is, however, up to the working groups to find ways of involving the private sector and finding means of obtaining voluntary financial resources from this sector to assist in strategy implementation.

b) Mobilizing Resources Externally

- Approaching international programmes, bilateral and multilateral agencies

Financial and technical support can also be obtained externally from a number of donor communities and international agencies in their relevant fields of expertise and experience. These include:

International Agencies
Intergovernmental agencies such as the bodies of the United Nations - for example, the United Nations Environment Programme (UNEP) , the United Nations Human Settlements Programme UN-Habitat , the United Nations Development Programme (UNDP) - support environmentally sound projects with local impacts and global benefits. The World Bank is also known for its environmental initiatives in many developing countries and has made significant contributions to activities geared towards the improvement of urban air quality. Regional Banks like the Asian Development Bank (ADB) and the Africa Development Bank (AfDB) also provide support to environmental projects. Others include the European Commission (EC) directorates and private foundations.

International Non-governmental Organizations
International NGOs working in the field of environment often support or collaborate with local partners in the implementation of projects regionally or within a country. These include the World Wide Fund for Nature (WWF), the International Union for Conservation of Nature (IUCN), GREENPEACE, the Local Governments for Sustainability (ICLEI), the International Institute for Environment and Development (IIED), and many others.

Bilateral Agencies
Bilateral agencies are development support agencies hosted by single donor countries of the developed world. Some examples of bilateral agencies include the Canadian International Development Authority (CIDA) , the Swedish International Development Authority (SIDA) , the US Assistance for International Development (USAID) , AUSAID , NORAD , DANIDA , FINNIDA , GTZ , among others.

- Taking advantage of international instruments and conventions

The Global Environment Facility (GEF) is a financial mechanism administered jointly by UNEP, UNDP and the World Bank to support projects addressing environmental issues along the following four thematic areas of global environmental concerns: climate change, desertification, biodiversity and ozone depletion. Depending on the air quality strategy chosen, projects could be submitted to the GEF as crosscutting issues under any of these areas but more specifically, the climate change or ozone thematic areas. With funding support from the GEF, Marikina City in the Philippines intends to establish bicycle lanes and expand the pedestrian lanes along highly traveled routes in low-income areas of the city. This is expected to encourage non-motorized transport as a local measure to address the global problem of climate change, as well as lessen local problems of congestion and air pollution. (For further information refer to www.unep.org/gef.)

The United Nations Framework Convention on Climate Change (UNFCCC) and its Kyoto Protocol, The Kyoto Protocol of the UNFCCC provides various instruments for collaboration between countries in adapting to and mitigating climate change. These include emissions trading, Joint Implementation (JI) and the Clean Development Mechanism (CDM) . For example, the CDM promises emissions reduction as well as sustainable development to the partners of developed and developing countries, respectively, through projects undertaken jointly to address climate change.


3.3 Strengthening System-Wide Capacities for Air Quality Management

Cities have found that it is crucial to strengthen the air quality management capacities of the stakeholders involved in the process. Air quality management should be firmly incorporated into the daily activities of the institutions and organizations of the city that have been identified as important actors for city air quality management.

Capacity building measures like training workshops and courses organized internally, as well as exchange of lessons learned between cities, regionally, and globally, for air quality management related personnel must be encouraged.

Some of the incorporated air quality management tools are suitable for capacity building and offer advice for equipment purchase and public information in, for example: traffic related air pollution, ambient air monitoring, emission assessments, and industrial pollution control techniques. The working group should identify the appropriate tools to improve the city's air quality management capacities. A simple procedure to facilitate integration of these capacities into the wider system would be to ensure the understanding of air quality issues through the following procedure:

STEP 1: Clarify the present air quality management capabilities and activities as overviewed in the Air Environmental Profile (see TOOL 2 of the Toolkit). Include the capacities and activities of the relevant public sectors, as well as private and community sector groups.

STEP 2: Compare these activities with the environment-development chain regarding air quality (see TOOL 3, Air Quality related Activity Sectors), and clarify which activities are poorly represented in the individual city and which institutions/organizations should improve their capacities.

STEP 3: Use TOOL 3, Air Quality related Activity Sectors to select the most appropriate factors to improve the capacities for each individual organization.


3.4 Institutionalizing Participation and Coordination

Institutionalization of broad-based participation and coordination mechanisms for managing the air quality in a city is a necessary step towards ensuring the continuity of measures to address air quality issues. Through increased public awareness and involvement, continuous policy advocacy, critique and review, or revitalization of both human and financial resources for air quality improvement, continuity of air quality management can be realized. Often it is a challenge to bring numerous agencies together to address the air quality issues through cross-sectoral coordination, public participation and awareness-raising, both at the city level and at the national level with different administrative boundaries. These different agencies have their own interests, priorities and agenda. Continuous intervention for institutionalized participation and coordination must be ensured by way of identifying issues, opportunities, and common problems as well as by building consensus.

3.4.1 Institutionalizing Broad-Based Participatory Approaches

Cities ensure that mechanisms for broad-based participation in air quality management become routine in EPM-based air quality management. Stakeholder participation could include the public sector at the municipal, regional and national levels; the private sector (for example consulting firms, training bodies, industries), both formal and informal; and the community sector, including NGOs and CBOs, and neighborhood groups.

Institutionalization of these participatory capacities is usually aided by a variety of measures, such as:

  • consistent sharing and systematic dissemination of information. Large companies could for example be requested to write annual reports in a common format on the environmental activities and status of their plants to inform NGOs, neighbourhood communities and the public in general. This could include the voluntarily signing of agreements concerning pollution control strategies.
  • documentation in non-technical and, where appropriate, local language to raise the awareness of the general public on issues such as the origin of the respective cities' worst air pollutants and greenhouse gases, as well as their health effects and environmental effects; explanations on meteorological factors which may enhance exposure; and the measures taken (and groups involved) to improve the air quality of that city or neighbourhood (using, for example, Internet and GPRS).
  • capacity building programmes, for example, for environmental NGOs to collect information, then approach and advise decision-makers. This could be combined with 'sensitivity' training for public sector institutions to enhance their understanding of the needs and perspectives of non-public groups and organizations.

Suggestions for community outreach:

  • Develop a plan and include a time line for implementation;
  • Solicit funding from the private and public sector;
  • Identify and appoint a coordinator; and
  • Seek commitment from key stakeholders to support the formulated strategies and action plans (These key stakeholders should include government, private/major local businesses, issue-specific local business, the media, and politicians).


Suggestions for enlisting popular grassroots support throughout the AQM process - approaches:

  • Use the educational system to approach the youth (i.e., education materials; debate programmes; poster competitions);
  • Use the media (find key journalists to support the issue; organize press events; letters to the editor); sponsorship of radio spots or programs dealing with the air quality concerns of citizens, directly addressing their questions;
  • Approach community groups and religious groups;
  • Enlist the support of an elected official and/or famous person and/or public figure (i.e., organize special events with these persons);
  • Enlist the support of NGOs and any group with "vested interest" (use their interest to involve them; develop a system for continuous follow-up);
  • Adopt a step-wise and face-to-face approach for bringing the above-mentioned groups on board and to foster trust;
  • Public demonstrations can catalyze support when discussions fail to enlist support; and
  • Offer something when you can, e.g. say thank you, reward supporters, give credit, tell success stories, and focus on any potential financial savings of the proposed strategies (important when private businesses are involved).

Box DD: How Participatory Processes Can Result in Significant Reduction in Industrial Pollution - The Case of Indonesia

In Indonesia, the Ministry had limited resources in order to regulate industrial pollution. Initially, the governors of the provinces had limited incentives to enforce environmental standards and industries simply ignored environmental regulations. The Ministry decided, in 1989, to focus its limited resources on implementing a programme-based approach for controlling industrial pollution. The programme focused on a group of the highest polluting industries. These industries were involved in a participatory process that resulted in the signing of an agreement. Participation in the programme was mandatory, compliance with the terms of the agreement was, to a very large extent, voluntary. As a result of the programme, emission reductions were achieved. However, only a small number of plants improved their environmental performance. The participatory approach resulted in a group of plants exerting efforts to control pollution emissions despite the absence of a reliable regulatory framework and enforcement capability. By identifying plants willing to implement pollution control, this information can be used for more focused intervention. This participatory approach is also useful because it forces the regulator to deal with the objectives of the programme and of environmental regulations.

 

Box EE: Private Sector Participation in the Philippines - The Anti-Smoke Belching Campaign

In the Philippines, the private sector has been actively involved in air quality management issues. An admirable example of this involvement is that of a beer producing company, San Miguel Corporation (SMC), in the anti-smoke belching campaign. The SMC's Polo brewery is visited by about 2,000 vehicles daily. The management set up a strict policy allowing only clean vehicles to enter the complex. The brewer assigned staff members to undertake the testing while the government initially lent them testing equipment and trained their staff. Clean vehicles received a sticker allowing them entry into the factory complex to conduct business with SMC. Owners of dirty vehicles were asked to clean their fleet or lose business. This approach has now been adopted as a corporate policy by SMC in all of its plants and offices and by over 100 other companies that have bonded together under the Centre for Corporate Citizenship.


Participatory approaches by different stakeholders promote public awareness of not only air quality issues but also of the enforcement of air quality policies and regulations. In this way, public interest groups, NGOs and CBOs can help "encourage" industries to comply with set standards and regulations. In fact, such groups have been found to be very useful because they have the knowledge and the initiative to launch campaigns. They may even sue the government when they feel that public health and the right to clean air is endangered.

Examples of this include the Centre for Science and Environment in India (CSE), an active NGO in the field of environment and development that initiated a successful campaign on the right to clean air. In Cairo, an active NGO threatened the government with court action over above-standard noise levels emanating from government-owned trams. The government complied and invested resources to reduce the noise levels.

 

Box FF: NGO Law Suits in South Coast, USA

In 1998, in the South Coast Air Basin, emissions due to diesel fuel were listed as toxic. Exposure increased the cancer risk by three. NGOs brought lawsuits against grocery chains using these trucks for the distribution of their goods on the basis that they had not warned the communities of the dangers imposed. These suits led to changes for cleaner technologies with BP Amoco, a leading oil company, investigating options for cleaner diesel fuel with a sulfur content of less than 15ppm.


3.4.2 Institutionalization of Coordination

Implementing air quality management strategies has usually been more effective if carried out through existing (but strengthened) local institutions rather than by creating new institutions. It has become essential, however, to develop capacities for cross-sectoral, inter-institutional, and multi-disciplinary collaboration. This multisectoral approach is easiest to achieve if cooperation is harnessed at the planning stage, i.e. by making sure that all those who have a role in implementation are involved in the planning and are, therefore, key to ensuring institutionalization of the air quality management process.

The institutionalization should encompass all levels of decision-making, not just the executive level. In the Philippines, there is a large amount of coordination between of those involved in air quality management at the top executive level (i.e. government officers, elected officials, private sector). More efforts through capacity building measures may help to regularize participation, thereby institutionalizing the air quality management process across the spectrum. This is also the case in Dakar, Senegal, where there is still reluctance to adopt the participatory approach in municipalities. Members of the working committee do not represent the community, sectors, or organizations they work for and cannot authoritatively speak on their behalf. To ensure a broad-based stakeholder representation and participation for institutionalization a protocol may need to be set up in such a case.

The need for a proper, institutionalized coordination mechanism is especially called for in a situation where there are 'too' many players and a lack of coordination mechanisms, which may dilute actions. This, in turn, accelerates division, conflicts, and duplication of efforts.

Many of the incorporated 'decision support tools' may assist in structuring the coordination process because they must be applied by environmental research agencies, who subsequently should transfer the tailor-made results to the decision-makers. It is recommended that the transfer of information needed for effective air quality management be institutionalized. An example is the annual transfer of emission data per activity sector to those who deal with enforcement. This allows the enforcers to judge the environmental performance of the sectors. Knowledge institutes, e.g. the data exchange among traffic agencies, environmental institutes, transport planning and land use planning agencies (including GIS activities) also need to coordinate in order to assess the developments regarding motor vehicle air pollution.

Addressing institutional issues is important to ensure the sustainability of implementation. In fact, based on their experiences, many cities have highlighted institutional issues as the most critical factor for ensuring success.

Box GG: The Clean Cities Initiative, USA - A Case of Institutionalized Coordination

A government initiative with a multi-sectoral structure, the Clean Cities initiative is a US Department of Energy programme designed to increase the use of alternative fuel vehicles (AFVs) across the United States and to encourage refueling and maintenance facilities to be built for operation. The alternative fuels may include CNG (compressed natural gas), propane, electricity, etc. The program is present across the US in 78 designations with more than 3,800 stakeholders. A typical stakeholder community in a designated Clean City is composed of various administrative organs of the city/state, private companies and businesses, and communities, e.g. schools. Such a community is responsible for the following positive achievements as of June 2000:

  • Nearly 180,000 alternative fuel vehicles (AFVs)
  • More than 4,000 refueling stations
  • 170 million gallons of petroleum displaced per year
  • 34,000 metric tons of emissions reduced per year

The Clean Cities Initiative is well institutionalized in the country. Due to its success, it now has international operations to help replicate the United States AFV (alternative fuel vehicle) technology and to share the lessons learned.


3.5 Monitoring and System Feedback

Cities have long recognized the vital importance of systematic monitoring as an integral part of air quality management. Monitoring physical environmental conditions (ambient air quality, emissions) is a familiar activity undertaken (to some degree) in nearly every city engaging in air quality management. This type of monitoring should be expanded beyond simple measurement of pollutants to encompass additional factors, particularly those that are directly related to causal factors. In addition, there is a second type of monitoring, less familiar but also quite important, that focuses on the process of air quality management. Thus, there are two types of monitoring which should be part of any comprehensive process of air quality management:

1. Monitoring of the air quality management process
2. Monitoring of physical emissions and mechanisms

Moreover, monitoring should be understood as more than just counting or measuring pollutants. Indeed, the purpose of monitoring is to provide management information that can be used to modify and improve the air quality management.

3.5.1 Monitoring the Air Quality Management Process

The process of managing urban air quality is a critical success factor for reducing air pollution. It is therefore important to systematically monitor the process. It is appropriate, for example, to monitor how effectively the different phases of the AQM process are being implemented. How carefully is the overall strategy being formulated? What are the gaps or problems in strategy coordination? How effectively have stakeholders been incorporated? Have all important interests been adequately involved? Are action plans being formulated and implemented in a manner cutting across sectors and bringing together diverse institutions and organizations? Are the targets developed during action planning being achieved within the desired time frame and, if not, why?

As a more generalized approach to "process monitoring", the Sustainable Cities Programme (UNEP/UN-Habitat) has developed a new methodology for monitoring the urban environmental planning and management process. This is based on the environmental planning and management (EPM) process and provides useful insights into the concepts and approaches of process monitoring. For this reason, it is a potentially valuable tool that will support the city's activities in monitoring and evaluating air quality management.

3.5.2 Monitoring of Physical Emissions and Mechanisms

Monitoring physical emissions and processes is another method used to evaluate air quality management. As illustrated in Figure 3.1 below, the effectiveness of air quality management can be evaluated at different points in the cause-effect chain including the:

a) Specific implementation strategies and action plans
b) Production and release of pollutants
c) Resulting concentration of pollutants in the city's air

To illustrate some of the different approaches to monitoring the AQM process, TOOL 25 identifies indicators for air quality management capabilities. These can be used by cities to monitor their own capabilities. It provides a systematic basis for modifying and adjusting specific processes of air quality management. The tool presents indicators for air quality measurement capacity, data assessment and availability, emissions estimates, and management capability.

Figure 3.1 Monitoring the Effectiveness of Action Plans and Strategies at Different Points

 

a) Measuring the Degree of Implementation Success for Different Interventions

This includes monitoring the targets or indicators that were built into the particular strategy or action plan being implemented. It will provide vital information about the effectiveness of the particular intervention, information that may be used to compare the strategy used with alternative approaches. The information may also be used to adjust and improve the intervention itself. Consider the following illustrations:

  • A strategy of converting fleet vehicles to alternative fuels can easily be monitored by counting the number and percentage of vehicles that have been converted.
  • In some developed countries, industries are obliged to apply the best (least polluting) and/or most affordable production technologies. It is easier to monitor the production equipment and technology than to measure emissions.
  • One approach to controlling dust from construction work is to require that buildings under construction be clad in sheeting which prevents the dust from escaping. It is easy to enforce such a regulation by simple visual inspection.
  • Inspection systems (for automobile engines, equipment, and exhaust) have mixed records of implementation. A monitoring system using random spot checks can establish the degree to which inspection results in an increased percentage of vehicles meeting the required standards.

b) Assessing Emissions from Polluting Activities

A key indicator for success of air quality management is reduction in emissions of various pollutants as achieved by different activity sectors. Methods to identify and measure these emission indicators have been extensively discussed in sub-section 1.3.2. As noted in that discussion, the advantages of doing this include:

  • One can directly quantify the emission reductions achieved by the implementation of particular pollution control measures for particular activities. For example, if the specific activity sector achieving the measured reduction is only a small contributor to total air pollution, implementation of this particular control measure will not result in a substantial decrease in total urban emissions.
  • Agreements can be made with the different activity sectors on a variety of emission reduction targets, both for the short-term and the long-term. Regular monitoring of specific emissions can enforce these agreements.

c) Monitoring Ambient Air Quality in the City

This is the most direct way to measure the city's air quality. Systematic and regular ambient air monitoring can give a good understanding of changes in air quality conditions, for example in indicating reductions in concentrations of particular pollutants. Ambient air monitoring measures the resultant total of all contributions from all sources. In general, it is not possible to measure individual contributions to the total emission loading except by direct measurement at the emission source (as discussed in the previous sub-section).

The principal disadvantage of direct ambient air quality monitoring, however, is its cost in money, equipment and skilled manpower. The accuracy of results is highly dependent on proper use of the right kind of (often expensive) equipment. Moreover, because ambient air quality varies a great deal from one part of the city to another, a fairly large number of different monitoring sites are needed, and different pollutants may require different geographical distributions of monitoring sites. Continuous monitoring is needed for some air quality conditions as these may vary widely during the day, as well as seasonally. The financial and technical demands are usually the biggest constraint to ambient air quality monitoring in developing countries.

A useful guide to the setting up and/or the improvement of air quality monitoring systems is the five-volume 'Methodology Review Handbook Series' produced by UNEP through its worldwide GEMS/AIR programme.

In recent years, a number of mathematical models ('Dispersion Models') have been developed which use general relationships (based on a wide variety of empirical data) to calculate changes in urban air quality in relation to changes in the emission of various types of pollutant. The estimated concentrations can then be compared with WHO guidelines to check whether the calculated air quality exceeds the standards and hence presents a threat to human health or to economic activity (these models are extensively discussed in section 1.3.2). The advantage of dispersion modeling is that it is a dynamic but inexpensive method, especially when compared to proper ambient air monitoring in the city. However, the models are based on general relationships and therefore must be calibrated periodically by specific measurements in the particular city where it is being applied.

Considerable work has been done in cities and organizations around the world to develop appropriate monitoring techniques. Some of these techniques are described in the accompanying Toolkit, and they can provide guidance for monitoring activities and results at each of the three stages, for instance:

  • There are tools for measuring the degree of response to particular implementation measures. For example, one can measure the percentage of cars passing emission inspection tests, or one can measure the degree to which households have shifted from higher-to-lower-pollution energy, sources for cooking and/or heating;
  • There are tools for regularly monitoring and assessing emissions from specific polluting activities; and
  • There are tools to model or monitor the ambient air quality in different parts of the city.