Investigation on heavy metal pollution in farmland soil of Shaanxi Province in 2022

Abstract

Abstract: Objective To understand the situation of heavy metal pollution of farmland soil in 3 major geographical regions of Shaanxi Province in 2022,and provide a basis for relevant departments to formulate policies and measures. Methods From July to August 2022,a sample of soil at a depth of 5-20 cm was randomly collected from 600 survey villages in Shaanxi Province,and the contents of lead,cadmium,chromium,hydrargyrum and arsenic were tested. The data were statistically analyzed and evaluated according to the distribution in the Guanzhong Plain,Qinba Mountain Area,and Shaanbei Plateau Areas. Results The overall compliance rate of heavy metals in 600 soil samples from Shaanxi Province in 2022 was 88.83%. The overall compliance rates in the Shaanbei Plateau（95.83%） and the Guanzhong Plain（95.00%） were higher than that in the Qinba Mountains（79.17%）（P<0.01）. The lead compliance rate of soil samples in Shaanxi Province was 99.83%,with one sample exceeding the standard coming from the Shaanbei Plateau. The cadmium compliance rate was 89.67%,the compliance rates in the Guanzhong Plain and Shaanbei Plateau were higher than those in the Qinba Mountain Area,and there was one high-risk soil sample in the Qinba Mountain Area. The compliance rates of chromium and arsenic were both 99.67%,and the exceeding samples were all from the Qinba Mountain Area（2 samples of chromium and arsenic each）. The hydrargyrum compliance rate was 100.00%. Conclusion In 2022,there is no hydrargyrum pollution in farmland soil in Shaanxi Province,with relatively light levels of lead,chromium,and arsenic pollution and more severe cadmium pollution. The pollution level in the Qinba Mountain Area is relatively severe,especially cadmium,which is significantly higher than that in the Guanzhong Plain and the Shaanbei Plateau.

Key words: Farmland, Soil, Heavy metals

CLC Number:

R124

SUN Qian, LEI Peiyu, JIA Ru, HUI Xiaofen, ZHENG Jingli. Investigation on heavy metal pollution in farmland soil of Shaanxi Province in 2022. [J]OCCUPATION AND HEALTH, 2024, 40(10): 1365-1369.

References

[1] PLEKHANOVA I O,ZOLOTARWVA O A,TARASENKO I D,et al.Assessment of ecotoxicity of soils contaminated by heavy metals[J].Eurasian Soil Sci,2019,52:1274-1288.
[2] 于灏,苏智杰,祝培甜,等.水稻、小麦与土壤中重金属Cd含量的关系模拟研究[J].地学前缘,2021,28(1):438-445.
[3] 戴青云,贺前锋,刘代欢,等.大气沉降重金属污染特征及生态风险研究进展[J].环境科学与技术,2018,41(3):56-64.
[4] 李继宁,侯红,魏源,等.株洲市农田土壤重金属生物可给性及其人体健康风险评估[J].环境科学研究,2013,26(10):1139-1146.
[5] 王世玉,吴文勇,刘菲,等.典型污灌区土壤与作物中重金属健康风险评估[J].中国环境科学,2018,38(4):1550-1560.
[6] 国家环境保护局.土壤环境监测技术规范:HJ/T 166—2004[S].北京:中国标准出版社,2004:14-15.
[7] 国家环境保护局.土壤质量铅、镉的测定石墨炉原子吸收分光光度法:GB/T 17141—1997[S].北京:中国标准出版社,1998:93-103.
[8] 国家环境保护局.土壤和沉积物铜、锌、铅、镍、铬的测定火焰原子吸收分光光度法:HJ 491—2019[S].北京:中国标准出版社,2019:1-12.
[9] 国家质量监督检验检疫总局,国家标准化管理委员会.土壤质量总汞、总砷、总铅的测定原子荧光法第1部分:土壤中总汞的测定:GB/T 22105.1—2008[S].北京:中国标准出版社,2008:1-3.
[10] 国家质量监督检验检疫总局,国家标准化管理委员会.土壤质量总汞、总砷、总铅的测定原子荧光法第2部分:土壤中总砷的测定:GB/T 22105.2—2008[S].北京:中国标准出版社,2008:3-5.
[11] 生态环境部,国家市场监督管理局.土壤环境质量农用地土壤污染风险管控标准:GB 15618—2018[S].北京:中国标准出版社,2018:2-3.
[12] 杨玉敏,师学义,张琛.基于内梅罗指数法的复垦村庄土壤重金属污染评价及空间分布[J].水土保持研究,2016,23(4):338-343.
[13] 况琴,黄庭,向京,等.鄂西北某农田保护区土壤重金属分布特征及生态风险评价[J].环境工程,2019,37(5):45-49,55.
[14] 刘效栋. 土壤重金属污染现状分析与防治策略.[J].世界有色金属,2020(21):188-189.
[15] 姜佰文,陆磊,王春宏,等.施用有机肥对土壤重金属累积的影响及风险评价[J].东北农业大学学报,2020,51(4):37-44.
[16] 田美玲,钟雪梅,张云霞,等.矿业活动影响区稻田土壤和稻米中重金属含量及健康风险[J].环境科学,2018,39(6):2919-2926.
[17] 赵秀芳,张永帅,冯爱平,等.山东省安丘地区农业土壤重金属元素地球化学特征及环境评价[J].物探与化探,2020,44(6):1446-1454.
[18] 夏志先,赵九娟,张金山,等.土壤重金属污染现状、危害以及化学修复稳定药剂研究进展[J].上海化工,2017,42(10):24-29.
[19] 叶脉,张景茹,张路路,等. 广东鼻咽癌高发区土壤-作物系统重金属迁移特征及健康风险评价[J].环境科学,2020,41(12):5579-5588.
[20] 陈林,钱秀荣,赵秋妮,等.铅暴露健康危害风险评估研究进展[J].中国职业医学,2018,45(3):401-405.
[21] 张妍,张磊,程红光,等.南方某矿区土壤镉污染及作物健康风险研究[J].农业环境科学学报,2020,39(12):2752-2761.
[22] 韩致超,康辉,张真,等.环境镉暴露与相关肾功能改变及尿转化生长因子-β1的关系[J].环境与职业医学,2021,38(3):210-216.
[23] 彭叶棉,杨阳,侯素霞,等.外源六价铬在土壤中的有效性及其小麦毒性效应[J].生态环境学报,2020,29(2):369-377.