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- Title
苏南某地区不同土地利用类型下农田土壤的多氯联苯污染现状分析.
- Authors
孙灵湘; 毛健; 刘腾飞; 杨代凤
- Abstract
Objective To explore the influence of the land use types on the content, composition and pollution characteristics of polychlorinated biphenyls(PCBs). Methods PCBs components in 87 surface soil samples were analyzed by gas chromatography, which were collected from farmland soils of 4 land-use types in south Jiangsu, namely tea garden, orchard, paddy field and vegetable plot. Results There were some differences in PCBS pollution in farmland soil of 4 different land-use types in the study area. The detection rate of PCBs were vegetable field>paddy field>tea garden>orchards, and total PCBs paddy field>vegetable field>orchards>tea garden. The compositions of PCBs homologue in soils of 4 different land–use types were different. Among them, the composition of PCBs homologue in the tea plantations, orchards and vegetable soils possessed a certain similarity, which were medium chlorine>high chlorine>low chlorine, while PCBs homologue in paddy soil was medium chlorine>low chlorine>high chlorine. Conclusion In the study area, the contents, compositions and pollution characteristics of PCBs in the farmland soils under different land-use types are different, paddy field presents the higher pollution ecological risk, the lower percentage high chloride PCBs homologue and the PCBs pollution characteristic is highly clustering.
- Publication
Journal of Food Safety & Quality, 2019, Vol 10, Issue 17, p5615
- ISSN
2095-0381
- Publication type
Article