Browsing Faculty of Natural and Agricultural Sciences by Subject "Welgegund"
Now showing items 1-6 of 6
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Assessment of polar organic aerosols at a regional background site in southern Africa
(Springer, 2019)A recent paper reported GCxGC-TOFMS analysis used for the first time in southern Africa to tentatively characterise and semi-quantify ~1000 organic compounds in aerosols at Welgegund – a regional background atmospheric ... -
Characterising particulate organic nitrogen at a savannah-grassland region in South Africa
(MDPI, 2019)Although atmospheric organic N compounds are considered to be important, especially in new particle formation and their contribution to brown carbon, these species are not that well understood. This can be partially ... -
Receptor modelling and risk assessment of volatile organic compounds measured at a regional background site in South Africa
(Elsevier, 2018)Volatile organic compounds (VOCs) can have significant impacts on climate and human health. Certain VOCs are proven to be carcinogenic and toxic, which can affect human health directly and indirectly. In order to develop ... -
Size-resolved characterisation of organic compounds in atmospheric aerosols collected at Welgegund, South Africa
(Springer, 2015)The organic fraction of atmospheric aerosols is 20 to 90 % of which only a small percentage has been chemically characterised. Two-dimensional gas chromatography with a time-of-flight mass spectrometer (GCxGC-TOFMS) is a ... -
Size-resolved characteristics of inorganic ionic species in atmospheric aerosols at a regional background site on the South African Highveld
(Springer, 2018)Aerosols consist of organic and inorganic species, and the composition and concentration of these species depends on their sources, chemical transformation and sinks. In this study an assessment of major inorganic ions ... -
Statistical analysis of factors driving surface ozone variability over continental South Africa
(Taylor & Francis, 2020)Statistical relationships between surface ozone (O3) concentration, precursor species and meteorological conditions in continental South Africa were examined from data obtained from measurement stations in north-eastern ...