NDLI: PCBs Residues Characteristics and Ecological Risk Assessment in a Chinese Paddy Fields

Content Provider	IEEE Xplore Digital Library
Author	Zhao Zhenhua Xia Liling Liu Juan Jiang Ying Liu Yueli
Copyright Year	2010
Abstract	14 kinds of PCBs were determined in water and soil of a paddy field in Dragon Bridge, Nanjing, P. R. China, which is a typical small watershed irrigated area. The results showed that: 14 congeners of PCBs were detected at different residue levels, the dominant components of PCBs were tri-, tetra-, and penta-chlorinated PCB congeners, accounting for 82.37% ~ 95.45% of total PCBs. The concentration range of PCBs in the water of paddy field was 34.0 ~ 148.6 ng/L, their mean content in surface water was 144.01ng/L and that in groundwater was 53.77 ng/L, the trend of vertical migration in the paddy field is very obvious. The concentration range of PCBs in paddy soil was 288.6 ~ 473.7 ng/g, and their mean value was 357.5ng/g. The ∑TEQ range was 0.75 ~ 1.89 pg/g, the ecological risk of research area was a bit high than other region in China. The residual content of PCBs in the paddy field is mainly affected by the using of fertilization and pesticides.
Starting Page	1
Ending Page	4
File Size	136511
Page Count	4
File Format	PDF
ISBN	9781424471591
e-ISBN	9781424471614
DOI	10.1109/ICEEE.2010.5660346
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laboratories Soil Water pollution Rivers Sediments Water resources Petroleum
Content Type	Text
Resource Type	Article

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