Spatial and Temporal Assessment of PM10 Levels Within the City of Tshwane, South Africa

The City of Tshwane (CoT) Municipality is located between three declared air quality priority areas (i.e. Highveld, Vaal Triangle Air-Shed and Waterberg Bojanala priority areas). This city is growing rapidly, and its air quality is suspected to be declining. The main purpose of this study is to identify areas that have high PM10 (particulate matter of aerodynamic diameter 10mm) concentration levels which serve as indicator of air pollution hotspots within the study area. The secondary PM10 data that was collected using the tapered element oscillating microbalance (TEOM) devices in the period from 2009 - 2014 at seven (7) ground based ambient air quality monitoring stations within the city was analysed.