典型岩溶区多介质中多环芳烃的环境存在特征

孔祥胜; 祁士华

doi:10.3969/j.issn.1001-4810.2013.02.009

典型岩溶区多介质中多环芳烃的环境存在特征

doi: 10.3969/j.issn.1001-4810.2013.02.009

孔祥胜¹,
祁士华²

1.
中国地质科学院岩溶地质研究所/中国地质科学院岩溶生态系统与石漠化治理重点实验室/国土资源部、广西壮族自治区岩溶动力学重点实验室；中国地质大学（武汉）生物地质和环境地质国家重点实验室
2.
中国地质大学（武汉）生物地质和环境地质国家重点实验室

基金项目: 中国地质调查局项目（1212011121166）、中国地质科学院岩溶地质研究所所控项目（2009013）

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出版历程
- 收稿日期: 2012-12-06
- 发布日期: 2013-06-25

The existing conditions of PAHs in multimedium in typical karst area：A case in the Leye Tiankeng Group, Guangxi

KONG Xiang sheng¹,
QI Shi hua²

1.
Institute of Karst Geology, CAGS / Key Laboratory of Karst Ecosystem and Rocky Desertification Control, CAGS / Kasrt Dynamics laboratory, MLR and GZAR；School of Environmental Studies, China University of Geoscience
2.
School of Environmental Studies, China University of Geoscience

摘要

摘要: 选择典型岩溶地区广西大石围天坑群为研究对象，采用2007—2008年同期采集的大气干湿沉降、空气、土壤、地下河水和沉积物样品测试数据，运用16种多环芳烃（PAHs)的成分谱、分布特征和特征比值，结合其物理化学性质进行对比分析。初步研究结果表明，全年大气干湿物/土壤/地下河沉积物均以屈（Chr）、苯并\[b]荧蒽（BbF）、苯并\[k]荧蒽（BkF）、苯并\[a]芘（BaP）4种4～6环PAHs为主；同期天坑空气/秋冬季干湿沉降物/地下河水以萘（Nap）、芴（Flu）、菲（Phe）和蒽（Ant）4种2～3环PAHs为主；各组介质中的PAHs存在特征具有较好的一致性，但也有一定的差异。利用这种方法初步解释了岩溶地区土壤、地下河水和沉积物中PAHs污染的来源（或输入）；同时证明了大气干湿沉降物是偏远岩溶地区土壤和地下河中PAHs的主要来源。因此建议在污染源调查过程中应把大气干湿沉降物列为PAHs污染源。
- 多环芳烃 /
- 成分谱 /
- 环境介质 /
- 大石围天坑 /
- 岩溶地区
Abstract: Based on the data of dry and wet atmospheric deposition, air, soil, groundwater and sediment samples gathered during the same term from 2007 to 2008 in a typical karst area - the Dashiwei Tiankeng, contrastive analysis is done in light of the component spectrums, the distribution features and the characteristic ratio as well as their chemical and physical properties of 16 kinds of PAHs. The results show that 4 kinds of PAHs with 4～6 rings ( chrysenes, benzo[b]fluoranthene, benzo[k]fluoranthene and benzo[a]pyrene) are dominated in the annual dry and wet atmospheric deposition, soil and sediment of the underground river. And 4 kinds of PAHs with 2～3 rings ( naphthalenes, fluorene, phenanthrene and anthracene) are dominated in dry and wet atmospheric deposition in autumn and winter, air and underground river water. The existing conditions of PAHs are of better consistency but also certain differences in each medium. By means of this method it is preliminary explained the sources or input of PAHs contaminant in soil, water and underground river sediment in karst area, and proved that the dry and wet atmospheric deposition is the main pollution source in soil and the underground river in remote karst mountain area. Therefore, it is suggested that the atmospheric dry and wet deposition should be taken as a PAHs source in the investigation of pollution sources.
- polycyclic aromatic hydrocarbons /
- component spectrum /
- environmental medium /
- the Dashiwei Tiankeng /
- karst area

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