2016—2022年石家庄市农田土壤镉污染变化及潜在生态风险评价  

Pollution change and health risk assessment of cadmium in farmland soil in Shijiazhuang from 2016 to 2022

作　　者：武瑞婷 陈凤格[3,4] 范尉尉 张荣[1,2] 牛玉杰 WU Ruiting;CHEN Fengge;FAN Weiwei;ZHANG Rong;NIU Yujie(School of Public Health,Hebei Medical University,Shijiazhuang 050017,China;Hebei Key Laboratory of Environment and Human Health,Shijiazhuang 050017,China;Public Health Monitoring and Evaluation Institute,Shijiazhuang Center for Disease Control and Prevention,Shijiazhuang 050011,China;Environment and Health Research Base,Chinese Center for Disease Control and Prevention,Shijiazhuang 050011,China)

机构地区：[1]河北医科大学公共卫生学院,石家庄050017 [2]河北省环境与人群健康重点实验室,石家庄050017 [3]石家庄市疾病预防控制中心公共卫生监测与评价所,石家庄050011 [4]中国疾病预防控制中心环境与健康研究基地,石家庄050011

出　　处：《中华疾病控制杂志》2024年第4期431-437,共7页Chinese Journal of Disease Control & Prevention

基　　金：河北省自然科学基金(B2020106002)。

摘　　要：目的了解石家庄市2016—2022年农田土壤镉污染情况,评估对人群健康的潜在风险,评价《河北省农村人居环境整治“三年行动”实施方案(2018—2020年)》(“三年行动”)的实施对镉污染的改善效果。方法选择石家庄6个项目县,每个县每年采集20份样本,并统一于每年7—8月在各县监测点处采样,采用标准限值对土壤中镉进行评价,同时采用地累积指数法和潜在生态风险指数法对其进行评估。结果共采集农田土壤840份,其中在2016年和2017年镉含量均值较大,主要集中在正定县和赞皇县;在“三年行动”后石家庄市平均镉污染水平总体有所降低。其中正定县、赞皇县、栾城区、藁城区和鹿泉区在实施后镉含量降低,无极县在“三年行动”后镉含量上升。结论石家庄市农田土壤中镉污染水平在“三年行动”后下降,表明该项目实施对降低土壤镉风险有一定效果,但仍需加强对土壤中镉污染的调查与监测,从而对潜在风险及时作出应对政策。Objective This study aims to clarify the situation of cadmium pollution in the agricultural soil of Shijiazhuang City from 2016-2022,evaluate potential health risks to the population,and assess the effectiveness of"the three-year initiative"in reducing cadmium pollution.Methods In six selected project counties,20 soil samples were collected annually from each county.Samples were collected from monitoring points in each county annually between July-August.Cadmium levels in the soil were evaluated using standard limits.Additionally,the study used the geo-accumulation index method,and potential ecological risk index method to assess the situation.Results A total of 840 soil samples were collected.In 2016 and 2017,cadmium levels were relatively high,primarily concentrated in Zhengding County and Zanhuang County.After"the three-year initiative",there was a decrease in the average cadmium pollution level in Shijiazhuang City.Specifically,and cadmium levels decreased in Zhengding County,Zanhuang County,Luancheng County,Gaocheng County,and Luquan County after implementation.However,Wuji County saw a slight increase in cadmium levels.Conclusions The level of cadmium pollution in agricultural soil in Shijiazhuang City significantly decreased after the implementation of"the three-year initiative".This indicates that"the three-year initiative"had a certain effect in reducing soil cadmium risk.However,there is still a need to strengthen the investigation and monitoring of cadmium pollution in the soil to formulate timely policies to address potential risks.

关 键 词：农田土壤 镉 潜在生态风险 

分 类 号：R124[医药卫生—环境卫生学]