ABSTRACT

Residual floor dust at an indoor firing range was investigated for the presence of selected heavy metals, and the associated health risks (non-carcinogenic and carcinogenic) were explored. Average heavy metal concentrations decreased in the following order: Pb >> Cu >> Zn > Mn > Cr > Ni > Cd. For the examined floor dust, moderate to significant degrees of enrichment were observed for Ni, Cd, Cr and Zn while extremely high degrees of enrichment were reported for Cu and Pb. Lead was the only heavy metal that exceeded the Hazard Index value of 1 and the potential carcinogenic risks for Cd and Ni were considered acceptable. A potential carcinogenic risk existed for Cr, as denoted by a total lifetime cancer risk value greater than 10^-4.

摘要

调查了室内射击场的残留地板灰尘中是否存在选定的重金属，并探讨了相关的健康风险（非致癌性和致癌性）。平均重金属浓度按以下顺序下降：Pb >> Cu >> Zn > Mn > Cr > Ni > Cd。对于检查的地板灰尘，Ni、Cd、Cr 和 Zn 的富集程度为中度至显着程度，而 Cu 和 Pb 的富集程度极高。铅是唯一超过危险指数值 1 的重金属，镉和镍的潜在致癌风险被认为是可以接受的。Cr存在潜在的致癌风险，表现为终生癌症总风险值大于10 ^-4。