J 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

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
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