西安市农业产地环境农田灌溉水重金属污染评价
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摘要
为了解和掌握西安市农业产地环境农田灌溉水重金属污染现状,对西安市9个涉农区县产地环境农田灌溉水重金属安全状况进行调查分析,抽取292个农田灌溉水,对农业产地环境条件标准中的严格控制的毒理性指标中的总铅、总镉、总汞和总砷进行了测定,采用单因子和尼梅罗综合污染指数法进行评价。结果表明:长安区、临潼区、高陵区、阎良区、蓝田县、周至县、未央区和灞桥区8个区县等级为清洁水平,只有户县污染程度为警戒限,污染水平为尚清洁,整体未受到大面积污染,农田灌溉水的毒理性指标符合农业产地环境农田灌溉水的要求。
In order to understand and grasp the current situation of heavy metal pollution of irrigated agricultural land in Xi'an,the safety situation of heavy metals in irrigated agricultural land in nine agricultural areas and counties in Xi'an was investigated and analyzed,and 292 farmland irrigation waters were extracted.Total lead,total cadmium,total mercury and total arsenic in strictly controlled toxicological indicators in environmental condition standards of agricultural origin were measured and evaluated by single factor and Nimeiluo index index method.The results showed that the eight districts and counties in Chang'an district,Lintong district,Gaoling district,Yanliang district,Lantian county,Zhouzhi county,Weiyang district and Baqiao district had clean levels,and only the pollution level in Hu County was a warning limit.The level of pollution was still clean,and the whole area was not contaminated.The toxicity index of farmland irrigation water meets the requirements of farmland irrigation water.
In order to understand and grasp the current situation of heavy metal pollution of irrigated agricultural land in Xi'an,the safety situation of heavy metals in irrigated agricultural land in nine agricultural areas and counties in Xi'an was investigated and analyzed,and 292 farmland irrigation waters were extracted.Total lead,total cadmium,total mercury and total arsenic in strictly controlled toxicological indicators in environmental condition standards of agricultural origin were measured and evaluated by single factor and Nimeiluo index index method.The results showed that the eight districts and counties in Chang'an district,Lintong district,Gaoling district,Yanliang district,Lantian county,Zhouzhi county,Weiyang district and Baqiao district had clean levels,and only the pollution level in Hu County was a warning limit.The level of pollution was still clean,and the whole area was not contaminated.The toxicity index of farmland irrigation water meets the requirements of farmland irrigation water.
引文
[1]闫旭.西安市大气、土壤、降水中重金属的污染特征研究[D].西安:西安建筑科技大学,2013.
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[12]涂淑玲,汪先明.鄱阳湖水体重金属污染的现状评价[J].江西科学,2005(6):796-798.
[2]杨雍,于世锋,汪庆华,等.西安市农业产地环境土壤重金属污染评价[J].安徽农业科学,2016,44(20):73-75.
[3]费勇山,刘佳,安建博,等.西安市周边河流沿岸种植玉米中重金属污染调查[J].职业与健康,2018,34(12):1643-1646.
[4]李会霞.西安市主要湖泊的水质与重金属污染特征及评价[D].西安:陕西师范大学,2017.
[5]李星宇.西安市路面径流雨水中重金属的污染状况及变化特性[D].西安:西安建筑科技大学,2014.
[6]郑武.广西藤县农田灌溉水质分析与评价[J].农业环境与发展,1995(3):20-24.
[7]冯金飞.南通市农田土壤、灌溉水重金属空间分布特征及污染评价[D].南京:南京农业大学,2007.
[8]陈铭达,栾日娜,陈婧,等.常规种植和有机种植农田灌溉水质量分析与评价——以长兴、昆山、溧阳、溧水为例[J].农业环境与发展,2012,29(2):4-9.
[9]张丽娜,魏成熙.贵州北部土壤与灌溉水重金属含量及评价[J].耕作与栽培,2007(6):32-33,58.
[10]石卉,黄惠来,文建辉.桂林市某蔬菜种植基地重金属污染调查及分析[J].环境科学与技术,2007(7):43-45,117-118.
[11]徐德利,周玲,杜永,等.连云港市水稻主产区土壤和灌溉水重金属含量分析及在稻米中的累积效应[J].中国土壤与肥料,2008(4):60-64.
[12]涂淑玲,汪先明.鄱阳湖水体重金属污染的现状评价[J].江西科学,2005(6):796-798.