We have already rolled outabout 20 of the new devices inSowetoandBraamfonteinin Johannesburg, and 120 more are coming in the next months. Both parts of the city have tens of thousands of vehicles driving through every day, putting them at high risk of air pollution. We have also placed ai...
James Gray, then chairman of the Health Committee of the Johannesburg City Council, an advisory committee of experts was convened to study the position in regard to atmospheric pollution in the city. As a result of their deliberations, the Council put forward suggestions for strengthening the ...
Indonesia, neighbor to the capital city Jakarta, had an average annual PM2.5 concentration of 71.7 µg/m3, while Benomi, South Africa lying near Johannesburg and Pretoria, was 54.9 µg/m3 in 2023. Those PM2.5 concentrations made each city the most polluted major cities in Southeast ...
In addition, air pollution from the Johannesburg area is transported with the surface winds and mix with VOCs released from exotic trees. Together with the high humidity and high elevation, these conditions may result in the formation of sulphonates. Sulphonates are strong detergents, and the ...
Seopela is a researcher in the Department of Chemistry at theUniversity of Johannesburg. “Burning processes create PAHs that vary in size from two to six fused benzene rings. The hotter the burning process, the bigger the compound that is formed, and the more harmful it is,” she says. ...
Over 50% of all PM comes from theignition phase of stoves lighted in the morning and inthe late afternoon after people arrive home from work.A laboratory (modelled on the SeTAR CentreLaboratory, University of Johannesburg) wasestablished to quantify domestic stove emissions.Measured particulate ...
The reasons for the changes are complex.It is clear that pollution of the air and water by factories is affecting the environment.Trees and other vegetation die,and so soil is eroded.the more trees that die,the less water is held in the earth.the need for wood for ...
Ambient air pollution has been associated with hypertensive disorders of pregnancy (HDP), but few studies rely on assessment of fine-scale variation in air quality, specific subtypes and multi-pollutant exposures. Aim To study the impact of long-term exposure to individual and mixture of air pollu...
Air pollution dispersion over Durban is studied using satellite, reanalysis and in situ measurements. This coastal city of 4 million people located on the east coast of South Africa contributes 29 million T/yr of trace gases, mostly from transport and in
von Schirnding Y (2003) Air quality and health in Greater Johannesburg. Air pollution and health in developing countries. Earthscan Publications, London, pp 206–219. https://doi.org/10.4324/9781849770460 Molnár P, Johannesson S, Quass U (2014) Source apportionment of PM2. 5 using positive ...