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 and Branislav VRANA. Investigating the temporal trends in PAH, PCB and OCP concentrations in Hartbeespoort Dam, South Africa, using semipermeable membrane devices (SPMDs). WATER SA. PRETORIA: WATER RESEARCH COMMISSION, 2014, vol. 40, No 3, p. 425-436. ISSN 0378-4738. Available from: https://dx.doi.org/10.4314/wsa.v40i3.5.

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 (404 Kenya), Luke CHIMUKA (710 South Africa, guarantor), Ewa CUKROWSKA (616 Poland), Petr KUKUČKA (203 Czech Republic, belonging to the institution), Jiří KOHOUTEK (203 Czech Republic, belonging to the institution) and Branislav VRANA (203 Czech Republic, belonging to the institution).
• Edition: WATER SA, PRETORIA, WATER RESEARCH COMMISSION, 2014, 0378-4738.

Other information

• Original 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
• WWW: URL
• Impact factor: Impact factor: 0.640
• RIV identification code: RIV/00216224:14310/14:00079304
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.4314/wsa.v40i3.5
• UT WoS: 000346631300005
• Keywords in English: Hartbeespoort dam; persistent organic pollutants; semipermeable membrane devices; water-dissolved concentrations; temporal trends
• Tags: AKR, rivok
• Tags: International impact, Reviewed

Abstract

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: Name: Zaměstnáním nejlepších mladých vědců k rozvoji mezinárodní spolupráce
• LM2011028, research and development project: Name: RECETOX ? Národní infrastruktura pro výzkum toxických látek v prostředí

Investor: Ministry of Education, Youth and Sports of the CR

• LO1214, research and development project: Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)

Investor: Ministry of Education, Youth and Sports of the CR