Search Results - "van Zyl, Pieter Gideon"
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Biomass burning aerosols in most climate models are too absorbing
Published in Nature communications (12-01-2021)“…Uncertainty in the representation of biomass burning (BB) aerosol composition and optical properties in climate models contributes to a range in modeled…”
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An overview of the first decade of Polly(NET): an emerging network of automated Raman-polarization lidars for continuous aerosol profiling
Published in Atmospheric chemistry and physics (25-04-2016)“…A global vertically resolved aerosol data set covering more than 10 years of observations at more than 20 measurement sites distributed from 63 degrees N to 52…”
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Six-year observations of aerosol optical properties at a southern African grassland savannah site
Published in Atmospheric environment (1994) (01-06-2020)“…Atmospheric aerosols have a significant effect on earth's radiative budget, particularly on regional scales. This paper presents a ~6 year, in situ, ground…”
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Seasonal influences on surface ozone variability in continental South Africa and implications for air quality
Published in Atmospheric chemistry and physics (29-10-2018)“…Although elevated surface ozone (O ) concentrations are observed in many areas within southern Africa, few studies have investigated the regional atmospheric…”
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Contamination of useful plant leaves with chromium and other potentially toxic elements and associated health risks in a polluted mining-smelting region of South Africa
Published in Environmental advances (01-10-2022)“…•Foliar Al, Co, Cr and Hg concentrations exceeded international permissible levels.•Cr(VI) was detected in unwashed leaves and soils from outcrops and polluted…”
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RETRACTED: Total and hexavalent chromium and other potentially toxic element contamination of useful plant leaves in a polluted mining-smelting region of South Africa and health risks
Published in Environmental advances (01-10-2022)“…This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal)…”
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Retraction notice to Total and hexavalent chromium and other potentially toxic element contamination of useful plant leaves in a polluted mining-smelting region of South Africa and health risks [Environmental Advances Volume 9, October 2022, 100260]
Published in Environmental advances (01-10-2022)Get full text
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Statistical analysis of factors driving surface ozone variability over continental South Africa
Published in Journal of integrative environmental sciences (29-12-2020)“…Statistical relationships between surface ozone (O 3 ) concentration, precursor species and meteorological conditions in continental South Africa were examined…”
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Regional atmospheric Cr(VI) pollution from the Bushveld Complex, South Africa
Published in Atmospheric pollution research (01-09-2016)“…Hexavalent chromium, Cr(VI), is a proven human carcinogen. Of interest in this paper was the regional atmospheric pollution of Cr(VI) from the ferrochromium…”
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Characterisation of a Real-World Søderberg Electrode
Published in Metals (Basel ) (01-01-2021)“…Very little research on Søderberg electrodes has been published in the journal peer reviewed public domain. The main aim of this work is to characterise a…”
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An overview of the first decade of PollyNET: an emerging network of automated Raman-polarization lidars for continuous aerosol profiling
Published in Atmospheric chemistry and physics (15-04-2016)“…A global vertically resolved aerosol data set covering more than 10 years of observations at more than 20 measurement sites distributed from 63∘ N to 52∘ S and…”
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Seasonality of the particle number concentration and size distribution: a global analysis retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories
Published in Atmospheric chemistry and physics (25-11-2021)“…Aerosol particles are a complex component of the atmospheric system which influence climate directly by interacting with solar radiation, and indirectly by…”
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Submicrometer aerosols and excess CO as tracers for biomass burning air mass transport over southern Africa
Published in Journal of geophysical research. Atmospheres (01-09-2016)“…This paper links surface measurements of biomass burning aerosols and trace gases with trajectory analysis to determine transport pathways for air masses with…”
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Spatial, temporal and source contribution assessments of black carbon over the northern interior of South Africa
Published in Atmospheric chemistry and physics (19-05-2017)“…After carbon dioxide (CO2), aerosol black carbon (BC) is considered to be the second most important contributor to global warming. This paper presents…”
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Statistical Analysis of Factors Riving Surface Ozone Variability over Continental South Africa
Published in Journal of integrative environmental sciences (03-06-2020)“…Statistical relationships between surface ozone (O3) concentration, precursor species and meteorological conditions in continental South Africa were examined…”
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An overview of the first decade of Polly.sup.NET: an emerging network of automated Raman-polarization lidars for continuous aerosol profiling
Published in Atmospheric chemistry and physics (25-04-2016)“…A global vertically resolved aerosol data set covering more than 10 years of observations at more than 20 measurement sites distributed from 63°â¯N to…”
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An overview of the first decade of Polly NET : an emerging network of automated Raman-polarization lidars for continuous aerosol profiling
Published in Atmospheric chemistry and physics (25-04-2016)“…A global vertically resolved aerosol data set covering more than 10 years of observations at more than 20 measurement sites distributed from 63° N to 52° S and…”
Get full text
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