Browsing Natural and Agricultural Sciences by Subject "Air pollution"
Now showing items 1-10 of 10
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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 ... -
Baseline assessment of the density and diversity of birds around Matimba and Medupi power station
(North-West University, 2015)Bird populations are changing at unprecedented rates in response to human-induced changes to the global environment, and these rates of change are expected to accelerate over the coming decades. Changes in the levels of ... -
A critical evaluation of local government air quality management: the Gauteng experience
(North-West University (South Africa), 2020)Environmental governance is complex in South Africa and is subject to a fragmented and ever-changing legislative framework. The National Environmental Management Air Quality Act, No. 39 of 2004 (NEMAQA) was promulgated in ... -
The effect of C2-chlorohydrocarbons and their phytotoxic metabolites on photosynthesis of crop plants and natural vegetation
(North-West University (South Africa), 2002)The effect of C2-chlorohydrocarbons and their phytotoxic metabolites on photosynthesis of crop plants and natural vegetation: The emission of the highly volatile ~-chlorohydrocarbons tetrachloroethylene (TECE) and 1, ... -
Impacts of coal-fired power plants on aerosol particles in the Highveld
(North-West University (South Africa), 2023)Industrialisation and urbanisation of the interior plateau of South Africa (i.e. the Highveld) have resulted in air quality that infringes on South Africans' right to an environment that is not damaging to human health or ... -
Influence of SO2 fumigation on growth, photosynthesis, lipoxygenase and peroxidase activities of soybean (Glycine max), in open–top chambers
(North-West University, 2012)Air pollutant exposure poses a health risk to humans and impacts negatively on agriculture. High levels of air pollution resulted in extensive crop damage and yield reduction in Europe and USA. The Highveld region in South ... -
Measurement of organic compounds in atmospheric aerosols collected at Welgegund, South Africa
(North-West University, 2018)Atmospheric aerosols or particulate matter (PM) are a complex mixture of solid and liquid particulates suspended in the atmosphere that originate from natural and anthropogenic sources. These species influence climate ... -
Risk mapping of eMalahleni municipal area with focus on coal mining impacts
(North-West University (South Africa), 2016)Coal-mining in eMalahleni raises a number of environmental challenges, including coal fires, subsidence, acid mine drainage (AMD) and air pollution. Previous studies by a number of institutions, including the Council for ... -
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 ... -
Using dispersion models as a regulatory tool in South Africa
(North-West University (South Africa), 2022)Assessment of exposure to air pollution within densely populated low-income townships (intra-urban) is a priority area for research, due to urban air-sheds being heterogeneous with concentrations varying significantly ...