2017-2020年河南省新乡市两县农田土壤铅污染状况及健康风险评价  

Soil lead pollution status in farmland in 2 counties of Xinxiang city Henan province and health risk assessment from 2017 to 2020

作　　者：郝鹏飞[1] 李淑娇 席瑾[1] 张光辉 任静朝 HAO Pengfei;LI Shujiao;XI Jin;ZHANG Guanghui;REN Jingchao(Xinxiang Center for Disease Control and Prevention,Xinxiang,Henan 453003,China;Department of Occupational and Environmental Health,College of Public Health,Xinxiang Medical University)

机构地区：[1]新乡市疾病预防控制中心,河南新乡453003 [2]新乡医学院公共卫生学院劳动卫生与环境卫生学教研室

出　　处：《河南预防医学杂志》2022年第3期233-235,共3页Henan Journal of Preventive Medicine

摘　　要：目的 了解新乡市部分地区土壤铅污染状况,初步进行生态和健康风险评价,为土壤铅污染治理提供科学依据。方法 2017-2020年,通过简单随机抽样的方法在新乡市新乡县和辉县采集160份农田土壤样本,采用石墨炉原子吸收法测定铅含量,并基于生态和健康风险评价方法对新乡市农田土壤铅污染状况进行分析。结果 2017-2018年新乡县和辉县农田土壤混合样本铅含量均值均未超过河南省土壤背景值,2019-2020年则均超过河南省土壤背景值;2017年铅含量最大值未超过河南省土壤背景值,2018-2020年则均超过河南省土壤背景值。2017-2020年土壤铅污染指数<1,2017-2020年土壤铅危险商<1。结论 新乡市两县农田土壤铅污染指数为安全级别,但铅含量呈上升趋势,应持续关注农田土壤铅含量的变化。Objective To understand the soil lead pollution status in some areas of Xinxiang city and assess the ecological risk and health risk,so as to provide scientific basis for soil lead pollution control. Methods A total of 160 farmland soil samples were collected from Xinxiang county and Hui county, Xinxiang city through simple random sampling. The graphite furnace atomic absorption method was used to measure lead content, and the ecological risk and health risk assessment was conducted.Results From 2017 to 2018, the average lead content in farmland soil mixed samples from Xinxiang county and Hui county did not exceed the soil background value of Henan province, while that from 2019 to 2020 exceeded the soil background value;the maximum value of lead in 2017 did not exceed the soil background value of Henan province,while that from 2018 to 2020 exceeded the soil background value. Single factor pollution index(Pi)result showed that from 2017 to 2020, the soil Pi<1, and the health risk assessment result showed that from 2017 to 2020, the soil lead hazard quotient<1. Conclusion Piof farmland soil lead in 2 counties of Xinxiang city is in safety range, but the lead content is increasing. We should pay more attention to the change of the lead content in the soil.

关 键 词：土壤 铅污染 生态风险评价 健康风险评价 

分 类 号：R124[医药卫生—环境卫生学]