2014
Investigating the temporal trends in PAH, PCB and OCP concentrations in Hartbeespoort Dam, South Africa, using semipermeable membrane devices (SPMDs)
AMDANY, Robert Kipruto; Luke CHIMUKA; Ewa CUKROWSKA; Petr KUKUČKA; Jiří KOHOUTEK et. al.Basic information
Original name
Investigating the temporal trends in PAH, PCB and OCP concentrations in Hartbeespoort Dam, South Africa, using semipermeable membrane devices (SPMDs)
Authors
AMDANY, Robert Kipruto; Luke CHIMUKA; Ewa CUKROWSKA; Petr KUKUČKA; Jiří KOHOUTEK and Branislav VRANA ORCID
Edition
WATER SA, PRETORIA, WATER RESEARCH COMMISSION, 2014, 0378-4738
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10511 Environmental sciences
Country of publisher
South Africa
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 0.640
RIV identification code
RIV/00216224:14310/14:00079304
Organization unit
Faculty of Science
UT WoS
000346631300005
EID Scopus
2-s2.0-84901838591
Keywords in English
Hartbeespoort dam; persistent organic pollutants; semipermeable membrane devices; water-dissolved concentrations; temporal trends
Tags
International impact, Reviewed
Changed: 20/3/2015 09:47, Ing. Filip Vaculovič
Abstract
In the original language
The seasonal variability of persistent organic pollutants in Hartbeespoort Dam, South Africa, was investigated using semipermeable membrane devices (SPMDs) as passive samplers. Freely dissolved waterborne polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) were sampled to investigate seasonal changes in their concentrations. Exposure of the passive samplers was done for 14 days at the same sampling site in each of the four seasons of the year, in 2011. The SPMD-derived analyte amounts enabled the calculation of time-weighted averages of free dissolved waterborne levels of the contaminants. Concentrations ranged from 30.0 ng.l(-1) to 51.5 ng.l(-1) for PAHs, 38 pg l(-1) to 150 pg.l(-1) for PCBs, 9.2 to 10.4 ng.l(-1) for HCHs and 0.3 to 0.8 ng.l(-1) for DDTs, respectively. It was also noted that the winter season generally exhibited higher contaminant concentrations for most compounds studied, which likely reflects the seasonality of their atmospheric deposition. An attempt was also made to identify possible sources of PAH contaminants in the dam by examining PAH ratios. These diagnostic ratios were inclined towards pyrogenic sources of pollution, except for the winter season where both pyrogenic and petrogenic sources likely contribute to the contamination pattern.
Links
| EE2.3.30.0037, research and development project |
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| LM2011028, research and development project |
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| LO1214, research and development project |
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