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Town/city: Middelburg
Province: Mpumalanga
GPS coordinates: S25°47,760' and E29°27,84'

The site consists of a 3 m x 2 m x 2,4 m shelter and 10 m mast on a concrete plinth with 1,8 m palisade security fencing. Apart from RM Young meteorological equipment for measurement of wind speed and direction, ambient temperature, relative humidity, rainfall, solar radiation and barometric pressure, the following instruments are installed for measurement of various pollutants at the site:

  • Grimm ambient dust monitor Model 180 - measurement of PM10 and PM2,5,
  • Monitor Europe SO2 analyser Model 9850B,
  • Monitor Europe NO, NO2, NOx analyser Model 9841B,
  • Monitor Europe CO analyser Model 9830B,
  • Monitor Europe O3 analyser Model 9810B, and
  • Chromatotec BTEX analyser for measurement of benzene, toluene, ethylbenzene and xylene.

The residential area of Aerorand in Middelburg was identified as one of the five towns in the Highveld Priority Area where an ambient air quality monitoring station should be placed. This site was selected primarily to measure the impact of mining and industrial emissions on the town of Aerorand, due to several complaints from residents in this area. The Middelburg Christian School in Aerorand was considered the most appropriate site for being well situated in terms of the proximity to large industrial sources, for example, Columbus Steel and Middelburg Ferrochrome. The main issues are particulate matter from industries in the south as well as the large mine dumps to the northwest. The area is not directly impacted by domestic fuel burning.
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