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Long-term observations of aerosol size distributions in semi-clean and polluted savannah in South Africa
(EGU, 2013)
This study presents a total of four years of sub-micron aerosol particle size distribution measurements in the southern African savannah, an environment with few previous observations covering a full seasonal cycle and the ...
The chemical composition and fluxes of atmospheric wet deposition at four sites in South Africa
(Elsevier, 2016)
South Africa is the economic hub of southern Africa and is regarded as an important source region of atmospheric pollutants. A nitrogen dioxide (NO2) hotspot is clearly visible from space over the South African Mpumalanga ...
General overview: European integrated project on Aerosol Cloud Climate and Air Quality Interactions (EUCAARI): integrating aerosol research from nano to global scales
(EGU, 2011)
In this paper we describe and summarize the main achievements of the European Aerosol Cloud Climate and Air Quality Interactions project (EUCAARI). EUCAARI started on 1 January 2007 and ended on 31 December 2010 leaving a ...
The reduction of hexavalent chromium by sulphite in wastewater
(WRC, 1999)
The reduction of hexavalent chromium, Cr(VI), in unbuffered aqueous solution by sulphite was investigated as a function of pH, possible dosage and contact time required to reach equilibrium. Dissolved Na2Cr2O7.2H2O served ...
Chemical composition, main sources and temporal variability of PM1 aerosols in southern African grassland
(EGU, 2014)
Southern Africa is a significant source region of
atmospheric pollution, yet long-term data on pollutant concentrations
and properties from this region are rather limited.
A recently established atmospheric measurement ...
Estimating the concentration of nucleation mode aerosol particles over South Africa using satellite remote sensing measurements
(AIP Publishing, 2013)
In this work satellite based observations were used to estimate the concentration of nucleation mode aerosols over South Africa. The nucleation mode aerosols can not be detected directly with satellite instruments since ...
Ambient aromatic hydrocarbon measurements at Welgegund, South Africa
(EGU, 2014)
Aromatic hydrocarbons are associated with direct
adverse human health effects and can have negative impacts
on ecosystems due to their toxicity, as well as indirect negative
effects through the formation of tropospheric ...
South African EUCAARI measurements: seasonal variation of trace gases and aerosol optical properties
(EGU, 2012)
In this paper we introduce new in situ observations of atmospheric aerosols, especially chemical composition, physical and optical properties, on the eastern brink of the heavily polluted Highveld area in South Africa. ...
Characterization of satellite-based proxies for estimating nucleation mode particles over South Africa
(EGU, 2015)
Proxies for estimating nucleation mode number
concentrations and further simplification for their use with
satellite data have been presented in Kulmala et al. (2011). In
this paper we discuss the underlying assumptions ...
Twenty-one years of passive sampling monitoring of SO2, NO2 and O-3 at the Cape Point GAW station, South Africa
(Elsevier, 2020)
Sulphur dioxide (SO2), nitrogen dioxide (NO2) and ozone (O3) are considered typical inorganic gaseous pollutants in the atmosphere. The aim of this study was to assess long-term seasonal and inter-annual trends of a 21-year ...