Occurrence and distribution of organochlorine pesticides (DDT and HCH) in sediments from the middle and lower reaches of the Yellow River, China

Sediments used in this study were selected from 23 stations in the middle and lower reaches of the Yellow River and its tributaries in November 2005. The levels and distribution patterns of selected organochlorine pesticides (OCPs = p,p ′-DDT, o,p ′-DDT, p,p ′-DDE, p,p ′-DDD, α-, β-, γ-, and δ-HCH)...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2010-09, Vol.168 (1-4), p.511-521
Main Authors: Wang, Guo-liang, Ma, Lu-ming, Sun, Jian-hui, Zhang, Gan
Format: Article
Language:English
Subjects:
Analysis
Applied sciences
Atmospheric Protection/Air Quality Control/Air Pollution
China
Chromatography
DDD
DDE
DDT (pesticide)
DDT - analysis
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Environmental Monitoring
Exact sciences and technology
Gas chromatography
Geochemistry
Geologic Sediments - chemistry
HCH
Hexachlorocyclohexane
Hydrocarbons
Laboratories
Lindane - analysis
Monitoring/Environmental Analysis
Nitrous oxide
Organic chemicals
Organic compounds
Organochlorine pesticides
Pallets
Particle Size
PCB
Pesticides
Pesticides - analysis
Pollutants
Pollution
Pollution control
Polychlorinated biphenyls
Rivers
Rivers - chemistry
Sediments
Studies
The Yellow River
Water Pollutants, Chemical - analysis
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Summary:Sediments used in this study were selected from 23 stations in the middle and lower reaches of the Yellow River and its tributaries in November 2005. The levels and distribution patterns of selected organochlorine pesticides (OCPs = p,p ′-DDT, o,p ′-DDT, p,p ′-DDE, p,p ′-DDD, α-, β-, γ-, and δ-HCH) in samples were investigated by analysis of gas chromatography coupled with micro-electronic capture detector. Concentration of OCPs in the sediments from the Yellow River ranged from 0.05 to 5.03 ng g ⁻ ¹ (mean, 1.02 ng g ⁻ ¹) for ∑DDT, 0.09-12.89 ng g ⁻ ¹ (mean, 1.08 ng g ⁻ ¹) for ∑HCH. The concentration distribution of ∑DDT and ∑HCH varied significantly with different sampling station, indicating their different contamination sources. Composition analyses demonstrated that residues of DDTs in sediments came from the previous inputs of organochlorine pesticides, while β-HCH and γ-HCH significantly dominated in the sediments for HCHs.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-009-1131-2