南京林业大学学报（自然科学版）2025，Vol.49Issue(2)：203-211,9.DOI:10.12302/j.issn.1000-2006.202308049
南京市地下车库地表尘重金属源解析及风险评估
Analysis of heavy metal sources and risk assessment of surface dust in underground parking garages in Nanjing City
摘要
Abstract
[Objective]This study aims to raise public awareness about the risks associated with underground parking garages in Nanjing City by analyzing heavy metals in surface dust and evaluating both ecological and human health risks.[Method]Surface dust samples were collected from underground parking garages in different regions of Nanjing for heavy metal analysis.Source apportionment analysis was performed using the absolute principal component scores-multiple linear regression(APCS-MLR)receptor model.Ecological risk was assessed using the geo-accumulation index method and the potential ecological risk index method.Human health risks were evaluated using the human health risk index.[Result](1)Four sources of heavy metals in surface dust were identified:fuel combustion,industrial emissions,road and industrial dust deposition,and vehicle exhaust emissions.(2)In the study area,average geo-accumulation index values for Zn and Cu indicated moderate to strong pollution,while the potential ecological risk index suggested a relatively high ecological risk.(3)For human health,cumulative non-carcinogenic risks for the six heavy metals exceeded the safe threshold for children(＞1)but remained within a manageable range for adults(＜1).Carcinogenic risks associated with Ni and Cr exceeded acceptable levels,with value standards(1×10-4).[Conclusion]The presence of heavy metals in surface dust from underground parking garages in Nanjing negatively impacts both the ecosystem and human health,underscoring the need for preventive and control measures.关键词
地下车库/地表灰尘/重金属/源解析/生态风险/人体健康风险评估Key words
underground garage/surface dust/heavy metals/source apportionment/ecological risk/human healthy risk assessment分类
资源环境引用本文复制引用
蓝洋,温佳乐,黄浩然,叶子,虞叶,李岩,董珍,冯笛珂,刘科,贾振毅,范庆斌,李柠,程新宇..南京市地下车库地表尘重金属源解析及风险评估[J].南京林业大学学报（自然科学版）,2025,49(2):203-211,9.基金项目
国家自然科学基金项目(42101079,42106216) （42101079,42106216）
江苏省高等学校大学生创新创业训练计划(202110298006Z). （202110298006Z）
