Environmental Science and Pollution Research

, Volume 20, Issue 12, pp 8751–8762

Occurrence, possible sources, and temporal trends of polychlorinated dibenzo-p-dioxins and dibenzofurans in water and sediment from the lower Yangtze River basin, Jiangsu and Shanghai areas of Eastern China

Authors

  • Zhiqiang Nie
    • State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences
  • Zhenwu Tang
    • MOE Key Laboratory of Regional Energy and Environmental Systems Optimization, Resources and Environmental Research AcademyNorth China Electric Power University
  • Xiaohua Zhu
    • National Research Center for Geoanalysis
  • Yufei Yang
    • State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences
  • Haihui Fu
    • State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences
  • Qingqi Die
    • State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences
  • Qi Wang
    • State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences
    • State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences
Research Article

DOI: 10.1007/s11356-013-1832-5

Cite this article as:
Nie, Z., Tang, Z., Zhu, X. et al. Environ Sci Pollut Res (2013) 20: 8751. doi:10.1007/s11356-013-1832-5

Abstract

The concentrations, compositional profiles, and possible sources of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/PCDF) in water column and surface sediment samples from the lower reaches of the Yangtze River were investigated, and the potential risks posed by these chemicals were evaluated. Concentrations of the 17 2,3,7,8-substituted PCDD/PCDF in the water and sediment samples ranged from 0.45 to 10.0 pg TEQ/L (mean 2.34 pg TEQ/L) and from 0.31 to 51 pg TEQ/g dw (mean 5.25 pg TEQ/g dw), respectively. Water and sediments from the Nanjing–Nantong sections of the Yangtze River were found to have elevated PCDD/PCDF levels, and the PCDD/PCDF TEQ concentrations in 13 sediment samples exceeded the probable effect levels (PEL), above which adverse biological effects are likely. Multivariate statistical analysis indicated that the principal PCDD/PCDF contamination source for the water and sediment was the production and use of pentachlorophenol (PCP) or sodium pentachlorophenate (PCP-Na). PCDD/PCDF concentrations were stable over time near the Yangtze River Estuary but had increased sharply in recent decades in the Nanjing–Nantong section, which will have been related to the growth in industrial activities and other anthropogenic PCDD/PCDF sources. Total organic carbon (TOC) and PCDD/PCDF concentrations correlated significantly (R = 0.474, P < 0.01), suggesting that TOC plays an important role in the transport and re-distribution of PCDD/PCDF in the Yangtze River basin.

Keywords

PCDD/PCDFTotal Organic Carbon (TOC)Lower reaches of Yangtze RiverSourcesRiskTemporal trends

Supplementary material

11356_2013_1832_MOESM1_ESM.docx (238 kb)
ESM 1(DOCX 238 kb)

Copyright information

© Springer-Verlag Berlin Heidelberg 2013