Levels and distributions of polychlorinated naphthalenes in sewage sludge of urban wastewater treatment plants

被引：32

作者：

Guo Li ^{[1
]}

Zhang Bing ^{[1
]}

Xiao Ke ^{[1
]}

Zhang QingHua ^{[1
]}

Zheng MingHui ^{[1
]}

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2008年 / 53卷 / 04期

基金：

中国国家自然科学基金;

关键词：

sewage sludge; polychlorinated naphthalenes (PCNs); high resolution gas chromatography; high resolution mass spectrometry (HRGC/HRMS); contributions; profiles;

D O I：

10.1007/s11434-008-0129-4

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Over seventy congeners of polychlorinated naphthalenes (PCNs) in sewage sludge of 8 urban wastewater treatment plants (WWTPs) in Beijing were analyzed by isotope dilution, and high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS) method. The total PCN concentrations determined in the samples range from 1.48 to 28.21 ng/g dw (dry weight) with TEQ concentrations of 0.11-2.45 pg/g dw. These levels were lower than those found in other regions. DiCNs and TrCNs were the most dominant homologues of PCNs. The similar congener profiles in all the samples suggest the similarity in certain sources. Contamination from industrial input might be the most significant source of PCNs in the sludges in this study, and thermal processes such as waste incineration and coal combustion may be another source of the PCNs contamination.

引用

页码：508 / 513

页数：6

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