Browsing by Subject "Passive sampling"
Now showing items 1-4 of 4
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Air quality in the Johannesburg–Pretoria megacity : its regional influence and identification of parameters that could mitigate pollution
(North-West University, 2012)A megacity is generally defined as a city that, together with its suburbs or recognised metropolitan area, has a total population of more than 10 million people. Air pollution in megacities is a major concern due to large ... -
Atmospheric dry and wet deposition of sulphur and nitrogen species and assessment of critical loads of acidic deposition exceedance in South Africa
(ASSAf, 2011)We tested the hypothesis that acidic atmospheric pollution deposition, originating from the South African central industrial area, poses an environmental threat across a larger region within the dispersal footprint. A ... -
Passive diffusion sampling devices for monitoring ambient air concentrations
(2015)This chapter gives an overview of sampling ambient air using passive (also termed diffusive) samplers. The use of this type of sampler in ambient air monitoring has become very popular due to the simplicity and convenience ... -
Spatial and temporal deposition of selected biogeochemical important trace species in South Africa
(North-West University, Potchefstroom Campus, 2018)The concern of potential adverse environmental effects due to increased anthropogenic emissions to the atmosphere necessitates the need for long-term atmospheric deposition programmes. Wet and dry depositions of emitted ...