成都市区公园灰尘中金属元素分布及健康风险评价  

Distribution of Metal Elements and Health Risk Assessment in Dust of Chengdu Urban Parks

作　　者：罗霜 李思思 何晋 夏波 罗自武 吴佳伦 LUO Shuang;LI Si-si;HE Jin;XIA Bo;LUO Zi-wu;WU Jia-lun(Chengdu Ecological Environment Monitoring Center Station of Sichuan Province,Chengdu 610000,China)

机构地区：[1]四川省成都生态环境监测中心站,成都610000

出　　处：《四川环境》2022年第5期202-211,共10页Sichuan Environment

摘　　要：为探究成都市公园生态环境质量,对成都市区20个公园灰尘中9种重金属含量进行分析,运用富集因子法、潜在生态危害指数法、健康风险评价法对其进行生态和健康评价。结果表明,成都市区公园灰尘中Pb、Cr、Co、Cu、Mn、Ni、V、Zn、Cd平均含量分别为82.4、147.4、16.8、101.2、642.7、30.7、91.3、512.1、1.2 mg/kg,其他城市相比Mn、V含量较高,其他元素则处于中等水平;富集因子法评价结果表明,公园灰尘中Cd、Zn、Pb为重度富集,其余为中度富集;潜在生态指数评价表明,公园灰尘中Cd潜在生态风险等级为很强,其余均为轻微;健康风险评价结果显示,9种重金属元素的非致癌风险均可忽略,而致癌重金属元素Cd、Ni、Co、Cr均不存在致癌风险。整体来看,成都市区公园空气质量较好,适宜开展各类休闲娱乐活动。In order to explore the ecological environment quality of Chengdu parks,the contents of 9 heavy metals in dust of 20 parks in Chengdu were analyzed,and enrichment factor method,potential ecological hazard index method and health risk assessment method were used to evaluate the ecology and health.The results showed that the average contents of Pb,Cr,Co,Cu,Mn,Ni,V,Zn,Cd in dust in Chengdu urban parks were 82.4,147.4,16.8,101.2,642.7,30.7,91.3,512.1,1.2 mg/kg,respectively.Compared with other cities,the contents of Mn and V were higher,while the other elements were at medium level.The results of enrichment factor method showed that the Cd,Zn and Pb in the park dust were severely enriched,,and the rest were moderately enriched.The evaluation of potential ecological index showed that the potential ecological risk level of Cd in park dust was very strong,and the rest were slight.The results of health risk assessment showed that the non-cancer risk of 9 heavy metal elements was negligible,while the Cd,Ni,Co,Cr of carcinogenic heavy metal elements did not have carcinogenic risk.Overall,the air quality of in Chengdu urban park is good,and it is suitable for all kinds of leisure and entertainment activities.

关 键 词：公园 灰尘 重金属 富集因子法 潜在生态危害指数法 健康风险评价法 

分 类 号：X826[环境科学与工程—环境工程]