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| To assess the capability of an air quality management plan it is necessary to answer three key questions:
Air Quality Management Capability Indicators In assessing the capability of an air quality management plan it is important to make use of indicators. The target audience for indicators in this case would be decision makers concerned with the air quality in Greater Johannesburg. The indicators are intended as an aid for decision makers to identify deficiencies in the capabilities of the air quality monitoring programme. In the study four sets of indicators (indices) have been developed to represent the principle components of management capability namely: Criteria for indicator development Each of the four indices consists of a number of component indicators to determine if the city has any useful capacity with respect to a particular element of management capability. Indicators were quantified by allocating points for each indicator question with a difference in weighing of points based on the importance of the capability. The total number of indicator points available in each component index is 25. These were then grouped into bands of air quality management capability. The indicator questions which were developed and applied represent the minimum capability required to generate air quality information useful for decision-makers, which result in minimum useful capability. State of Air pollution Monitoring within Greater Johannesburg This assesses the ambient air monitoring taking place in a city, as well as the accuracy, precision and representativeness of the data produced. Monitoring objectives
MONITORING NETWORKS AND OBJECTIVES
Air quality measurement and methodologies Number of sampling instruments for each compound monitored
Number of passive, active and continuous sampling instruments in Johannesburg
P = passive A = active C = continuous analysis Particulate matter monitoring methodologies
Quality assurance and control
Overall score for assessment of the monitoring capability A quantitative assessment of the monitoring capability of the Greater Johannesburg Metropolitan Council was provided by the management capability index with a score of 12 out of 25 which is a moderate score. DATA ASSESSMENT AND AVAILABILITY INDEX This assesses how the air quality data is processed to enhance their value and provide information in a decision-relevant form, as well as the availability of data. Data Assessment
Data dissemination
Overall score on data assessment and dissemination The Greater Johannesburg Metropolitan Council scored approximately 2 points on the ratio data assessment and availability to measurement indices which indicate the usage of data being monitored. EMISSIONS ESTIMATES INDEX Assessment of emissions inventories conducted to determine the extent to which decision-relevant information is available about the sources of pollution in the city. Emissions estimates for major source categories
Pollutants for which emissions estimate have been derived – not available Emissions estimates validity and availability – not available Overall score on emissions estimation capability. The Greater Johannesburg Metropolitan Council (GJMC) scored no points on the emissions estimation capability. MANAGEMENT ENABLING CAPABILITIES INDEX This assesses the administrative and legislative framework through which emissions control strategies are introduced and implemented to manage air quality. Air quality standards
Emission limits and emissions monitoring
The GJMC scored 12 out of 25 points on the air quality management tools required to formulate and implement air quality management strategies. Overall score for Greater Johannesburg Metropolitan Council The GJMC scored 38 out of 100 in the overall management capability index which indicates a need for guidance in the formulation and implementation of air quality management strategies, as well as the need for capacity building to enhance the development of monitoring, emissions inventories and data assessment. Without the development of all the components of an air quality management capability it will be difficult to meet the recommendations |
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