广州市农村菜地土壤重金属污染生态风险评价
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摘要
目的评价广州市部分农村地区土壤中重金属污染的生态风险。方法采集广州市44个行政村共271宗菜地土壤样品,检测镉、汞、砷、铅的含量和p H值,用内梅罗综合指数法进行生态风险评价。结果土壤p H值平均值为6. 49;镉、汞、砷、铅的合格率分别为86. 35%、84. 87%、94. 83%和100. 00%,单因子污染指数平均值分别为4. 23、3. 08、1. 68和1. 52; N区、P区、B区、H区、Z区和C区的内梅罗综合污染指数分别为6. 04、5. 02、4. 60、4. 19、3. 34和2. 68。结论所调查的农村菜地均存在不同程度的重金属污染,以镉和汞污染为主。
Objective To evaluate the ecological risk of heavy metal pollution in soil in some rural areas of Guangzhou. Methods A total of 271 soil samples were collected from 44 administrative villages in Guangzhou. The concentration of Cd,Hg,As,Pb and p H value were detected. The ecological risk assessment was carried out using. Nemerow multi-factor index method. Results The average p H value of soil is 6. 49. The qualification rate of Cd,Hg,As and Pb were 86. 35%,84. 87%,94. 83% and100. 00%. The averages of the single-factor pollution index were 4. 23,3. 08,1. 68 and 1. 52,respectively. The Nemerow multi-factor index of N,P,B,H,Z and C region were 6. 04,5. 02,4. 60,4. 19,3. 34 and 2. 68 respectively. Conclusion There are different levels of heavy metal pollution in rural vegetable soil,mainly Cd and Hg pollution.
Objective To evaluate the ecological risk of heavy metal pollution in soil in some rural areas of Guangzhou. Methods A total of 271 soil samples were collected from 44 administrative villages in Guangzhou. The concentration of Cd,Hg,As,Pb and p H value were detected. The ecological risk assessment was carried out using. Nemerow multi-factor index method. Results The average p H value of soil is 6. 49. The qualification rate of Cd,Hg,As and Pb were 86. 35%,84. 87%,94. 83% and100. 00%. The averages of the single-factor pollution index were 4. 23,3. 08,1. 68 and 1. 52,respectively. The Nemerow multi-factor index of N,P,B,H,Z and C region were 6. 04,5. 02,4. 60,4. 19,3. 34 and 2. 68 respectively. Conclusion There are different levels of heavy metal pollution in rural vegetable soil,mainly Cd and Hg pollution.
引文
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[14]刘艳萍,刘鸿雁,吴龙华,等.贵阳市某蔬菜地养殖废水污灌土壤重金属、抗生素复合污染研究[J].环境科学学报,2017,37(3):1074-1082.
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[16]张帆,谢玲玲,弥宝彬,等.蔬菜对重金属镉富集研究进展[J].湖南农业科学,2017,47(7):127-130.
[17]安玉琴,袁树华,张瑞琦,等.河北省农田土壤重金属污染评价[J].医学动物防制,2016,32(10):1092-1094.
[18]方慧,张珍明,何腾兵,等.贵州磷肥施用对耕地土壤重金属铅的影响[J].耕作与栽培,2016,36(5):57-61.
[2]王腾飞,谭长银,曹雪莹,等.长期施肥对土壤重金属积累和有效性的影响[J].农业环境科学学报,2017,36(2):257-263.
[3]刘洋,马宗伟,吕建树,等.日照市土壤重金属来源解析及环境风险评价[J].地理学报,2012,67(7):971-984.
[4]刘亚纳,朱书法,魏学锋,等.河南洛阳市不同功能区土壤重金属污染特征及评价[J].环境科学,2016,37(6):2322-2328.
[5]栗利曼,刘菊梅,沈渭寿,等.包头工业区蔬菜重金属富集及人群健康评价[J].中国蔬菜,2016,36(1):54-59.
[6]赵金泉,于维森,李景喜,等.青岛某养殖区贝类生物重金属富集季节变化[J].预防医学论坛,2016,22(3):164-169.
[7]苏丹,崔建平,张瑞仙,等. 2014年呼和浩特市食品中重金属污染监测与分析[J].工业卫生与职业病,2017,43(2):149-151,154.
[8]张慧,郑志志,马鑫鹏,等.哈尔滨市土壤表层重金属污染特征及来源辨析[J].环境科学研究,2017,30(10):1597-1606.
[9]谷阳光,高富代.我国省会城市土壤重金属含量分布与健康风险评价[J].环境化学,2017,36(1):62-71.
[10]杨牧青,康宏宇,刘源,等.云南会泽某铅锌冶炼厂周边土壤重金属污染特征与评价[J].山东农业科学,2017,49(4):72-77.
[11]国家环境保护局,国家技术监督局.土壤环境质量标准[S].北京:中国标准出版社,1995.
[12]国家环境监测总站.中国土壤元素背景值[M].北京:中国环境科学出版社,1990:330-378.
[13]陈海珍,龚春生,李文立,等.广州市不同功能区土壤重金属污染特征及评价[J].环境与健康杂志,2010,27(8):700-703.
[14]刘艳萍,刘鸿雁,吴龙华,等.贵阳市某蔬菜地养殖废水污灌土壤重金属、抗生素复合污染研究[J].环境科学学报,2017,37(3):1074-1082.
[15]张青梅,向仁军,刘湛,等.湖南省磷肥中重金属含量及形态特征[J].有色金属科学与工程,2016,7(5):125-130.
[16]张帆,谢玲玲,弥宝彬,等.蔬菜对重金属镉富集研究进展[J].湖南农业科学,2017,47(7):127-130.
[17]安玉琴,袁树华,张瑞琦,等.河北省农田土壤重金属污染评价[J].医学动物防制,2016,32(10):1092-1094.
[18]方慧,张珍明,何腾兵,等.贵州磷肥施用对耕地土壤重金属铅的影响[J].耕作与栽培,2016,36(5):57-61.