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Volatile organic compounds (VOCs) can have significant impacts on climate and human health. In order to develop climate change reduction strategies and to assess the impacts of VOCs on human health, it is crucial to determine the sources of VOCs, which can be emitted from biogenic and anthropogenic sources. In this study source apportionment was performed using positive matrix factorisation (PMF) analysis on VOC data collected at Welgegund – a regional background station located on a commercial farm approximately 100 km west of Johannesburg that is influenced by the major sources in the interior of South Africa – for more than two years. In addition, a risk assessment study was also performed in view of the major source regions affecting Welgegund in order to quantify the impacts of anthropogenic VOCs measured at Welgegund on human health.

clean air journal

Receptor modelling and risk assessment of volatile organic compounds measured at a regional background site in South Africa North-West University's research published in Atmospheric Environment