| 长江三角洲地区污泥中多环芳烃的污染研究 |
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| 引用本文： | SHEN Rong-Yan,LUO Yong-Ming,ZHANG Gang-Y,TENG Ying,LI Zhen-Gao,WU Long-Hua. 长江三角洲地区污泥中多环芳烃的污染研究[J]. 土壤圈, 2007, 17(3): 373-382. DOI: 10.1016/S1002-0160(07)60045-9 |
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| 作者姓名： | SHEN Rong-Yan LUO Yong-Ming ZHANG Gang-Y TENG Ying LI Zhen-Gao WU Long-Hua |
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| 作者单位： | [1]Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 （China） [2]Graduate School of Chinese Academy of Sciences, Beijing 100039 （China） |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | To ascertain the contaminated conditions of polycyclic aromatic hydrocarbons （PAHs） in sludge and to evaluate the risk of application of this sludge for agricultural purposes, 44 sludge samples obtained from 15 cities in the Yangtze River Delta area of China were investigated using capillary gas chromatography/mass spectrometry （GC/MS） after ultrasonic extraction and silica gel cleanup. PAHs＇ contents ranged from 0.0167 to 15.4860 mg kg^-1 （dry weight, DW） and averaged 1.376 mg kg^-1, with most samples containing 〈 1.5 mg kg^-1. Pyrene （PY）, fluoranthene （FL）, benzo[b]fluoranthene （BbF）, indeno[1,2,3-cd]pyrene （IND）, benzo[a]pyrene （B[a]P）, and benzo[g,h,i]perylene （BghiP） were the most dominant compounds, ranging from 0.1582 to 0.2518 mg kg^-1. Single PAH, such as naphthalene （NAP, 2-benzene rings）, phenanthrene （PA, 3-benzene rings）, PY （4-benzene rings）, and FL （3-benzene rings）, had high detection rates （76.1%-93.5%）. The distribution patterns of PAHs were found to vary with the sludge samples; however, the patterns showed that a few compounds with 2- and 3-benzene rings were commonly found in the samples, whereas those with 4-, 5-, and 6-benzene rings were usually less commonly found. All the 44 sludge samples were within the B[a]P concentration limit for sludge applied to agricultural land in China （〈 3.0 rag kg^-1）. The probable sources of PAH contamination in the sludge samples were petroleum, petroleum products, and combustion of liquid and solid fuel. The concentrations and distributions of the 16 PAHs in sludge were related to sludge type, source, and treatment technology, together with the physicochemical properties.
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| 关 键 词： | 长江三角洲地区 污泥样品 PAHs 有机污染物 |
| 收稿时间： | 2006-08-14 |
| 修稿时间： | 2007-01-16 |
Contamination of PAHs in sludge samples from the Yangtze River Delta area |
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| SHEN Rong-Yan,LUO Yong-Ming,ZHANG Gang-Y,TENG Ying,LI Zhen-Gao and WU Long-Hua. Contamination of PAHs in sludge samples from the Yangtze River Delta area[J]. Pedosphere, 2007, 17(3): 373-382. DOI: 10.1016/S1002-0160(07)60045-9 |
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| Authors: | SHEN Rong-Yan LUO Yong-Ming ZHANG Gang-Y TENG Ying LI Zhen-Gao WU Long-Hua |
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| Affiliation: | Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). E-mail: ryshen1204@yahoo.com.cn;Graduate School of Chinese Academy of Sciences, Beijing 100039 (China);Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). E-mail: ryshen1204@yahoo.com.cn;Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). E-mail: ryshen1204@yahoo.com.cn;Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). E-mail: ryshen1204@yahoo.com.cn;Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). E-mail: ryshen1204@yahoo.com.cn;Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). E-mail: ryshen1204@yahoo.com.cn |
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| Abstract: | To ascertain the contaminated conditions of polycyclic aromatic hydrocarbons (PAHs) in sludge and to evaluate the risk of application of this sludge for agricultural purposes, 44 sludge samples obtained from 15 cities in the Yangtze River Delta area of China were investigated using capillary gas chromatography/mass spectrometry (GC/MS) after ultrasonic extraction and silica gel cleanup. PAHs' contents ranged from 0.0167 to 15.4860 mg kg-1 (dry weight, DW) and averaged 1.376 mg kg-1, with most samples containing < 1.5 mg kg-1. Pyrene (PY), fluoranthene (FL), benzo[b]fluoranthene (BbF), indeno[1,2,3-cd]pyrene (IND), benzo[a]pyrene (B[a]P), and benzo[g,h,i]perylene (BghiP) were the most dominant compounds, ranging from 0.1582 to 0.2518 mg kg-1. Single PAH, such as naphthalene (NAP, 2-benzene rings), phenan-threne (PA, 3-benzene rings), PY (4-benzene rings), and FL (3-benzene rings), had high detection rates (76.1%-93.5%). The distribution patterns of PAHs were found to vary with the sludge samples; however, the patterns showed that a few compounds with 2- and 3-benzene rings were commonly found in the samples, whereas those with 4-, 5-, and 6-benzene rings were usually less commonly found. All the 44 sludge samples were within the B[a]P concentration limit for sludge applied to agricultural land in China (< 3.0 mg kg-1). The probable sources of PAH contamination in the sludge samples were petroleum, petroleum products, and combustion of liquid and solid fuel. The concentrations and distributions of the 16 PAHs in sludge were related to sludge type, source, and treatment technology, together with the physicochemical properties. |
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| Keywords: | municipal sludge organic pollutants polycyclic aromatic hydrocarbons Yangtze River Delta |
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