| 引用本文: | 马万里,刘丽艳,齐虹,宋维薇,张子峰,丁晶,沈吉敏,陈忠林,李一凡.松花江水环境中多环芳烃的污染及致癌风险[J].哈尔滨工业大学学报,2014,46(6):44.DOI:10.11918/j.issn.0367-6234.2014.06.009 |
| MA Wanli,LIU Liyan,QI Hong,SONG Weiwei,ZHANG Zifeng,DING Jing,SHEN Jimin,CHEN Zhonglin,LI Yifan.Pollution and cancer risk of PAHs in water environment of the Songhua River, China[J].Journal of Harbin Institute of Technology,2014,46(6):44.DOI:10.11918/j.issn.0367-6234.2014.06.009 |
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| 松花江水环境中多环芳烃的污染及致癌风险 |
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马万里1, 刘丽艳1,齐虹1,宋维薇1,张子峰1,丁晶2,沈吉敏1,陈忠林1,李一凡1
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(1. 哈尔滨工业大学 市政环境工程学院, 城市水资源与水环境国家重点实验室, 国际持久性有毒物质联合研究中心, 150090 哈尔滨; 2. 哈尔滨工业大学 城市水资源开发利用(北方)国家工程研究中心,150090 哈尔滨)
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| 摘要: |
| 为研究松花江水环境中多环芳烃(PAHs)的污染特征及致癌风险,于2006~2010年间对松花江流域13个监测断面的水样和底泥样进行了6次集中采集,采样时间包括平水期、丰水期和冰封期,采用液液萃取法和索氏提取法对样品中的PAHs进行提取,采用GC-MS进行定性和定量分析. 结果表明,水样中主要以低环的PAHs为主,底泥中主要以高环的PAHs为主,水样和底泥中15种PAHs的含量分别为(73.7 ± 27.8)ng／L和(127 ± 117)ng／g, 同我国其他河流相比,松花江水环境中PAHs的污染程度较小．松花江水环境中PAHs的浓度具有明显的季节差异,平水期和丰水期水样中的浓度较高,冰封期水样中PAHs的浓度最低,而平水期底泥中PAHs的浓度要远高于丰水期．致癌风险评估模型的计算结果表明,松花江水样中PAHs的致癌风险小于10-6,致癌风险较小． |
| 关键词: 多环芳烃 水环境 污染特征 季节变化 致癌风险 |
| DOI：10.11918/j.issn.0367-6234.2014.06.009 |
| 分类号:X522 |
| 基金项目:国家自然科学基金青年项目(41101493);中国博士后科学基金资助项目(2011M500677);中央高校基本科研业务费专项资金资助项目(HIT.NSRIF.2014095). |
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| Pollution and cancer risk of PAHs in water environment of the Songhua River, China |
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MA Wanli1, LIU Liyan1, QI Hong1, SONG Weiwei1, ZHANG Zifeng1, DING Jing2, SHEN Jimin1, CHEN Zhonglin1, LI Yifan1
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(1. International Joint Research Center for Persistent Toxic Substances, State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, 150090 Harbin, China; 2. National Engineering Research Center of Urban Water Resources, Harbin Institute of Technology, 150090 Harbin, China)
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| Abstract: |
| To study the pollution characteristic and cancer risk of PAHs in water environment, water and sediment samples were concurrently collected on 13 monitoring sections within the Songhua River Basin. Totally, 6 batches of sampling programs were conducted from 2006 to 2010, including the low water season, the high water season and the icebound season. Water and sediment samples were extracted by liquid-liquid extraction and Soxhlet extraction, respectively. The qualification and quantification of PAHs were analyzed by GC-MS. The compositional pattern of PAHs indicated that low ring PAHs were predominant in water samples, while high ring PAHs dominated in sediment samples. The average total concentrations of 15 PAHs were (73.7±27.8)ng／L and (127±117)ng／g, ww for water and sediment samples, respectively. The concentration of PAHs was lower than those of other rivers in China. Obviously seasonal variation of PAHs concentration was observed in the water environment of the Songhua River. For water samples, the PAHs concentrations in the low water season and the high water season were higher than those in the icebound season. For sediment samples, the PAHs concentrations in the low water season were much higher than those in the high water season. The results of the incremental lifetime cancer risk assessment model indicated that the estimated integrated lifetime cancer risks were less than for 10-6, indicating low level of cancer risk for all age groups. |
| Key words: PAHs water environment pollution characteristic seasonal variation cancer risk |
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