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Spatial characteristics of sediment trace metals in an eastern boundary upwelling retention area (St. Helena Bay, South Africa): A hydrodynamic-biological pump hypothesis

Author: Monteiro, Pedro MS ; Roychoudhury, AN Date: Oct 2005 St. Helena Bay, is a retention zone located in the southern Benguela upwelling system, and is an important fish nursery. However, it suffers from seasonal bottom water hypoxia causing major economic losses. Anoxic conditions are linked to ... Read more
Trends from the South African historical diesel particulate matter data

Author: Pretorius, CJ Date: Mar 2012 Currently, there is no occupational exposure limit (OEL) for diesel particulate matter (DPM) in South Africa. Recently the Department of Mineral Resources and the mining industry have made efforts to determine which concentration of DPM could ... Read more
Ubiquitous presence of Fe(II) in aquatic colloids and its association with organic carbon

Author: von der Heyden, BP ; Hauser, EJ ; Mishra, B ; Martinez, GA ; Bowie, AR ; Tyliszczak, T ; Mtshali, Thato N ; Roychoudhury, AN ; Myneni, SBC Date: Aug 2014 Despite being thermodynamically less stable, small ferrous colloids (60 nm to 3 µm in diameter) remain an important component of the biogeochemical cycle at the Earth’s surface, yet their composition and structure and the reasons for their ... Read more
Work in progress: Diesel particulate baseline for the platinum mine industry

Author: Pretorius, CJ Date: Mar 2013 This paper shares the current DPM Baseline project that the CSIR is conducting for the platinum mine industry. The project only ends March 2013 so no results are reported in this paper. The paper describes the project plan such as the exposure ... Read more

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Browsing by Subject "Organic carbon"

Browsing by Subject "Organic carbon"

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