Abstract:To assess the non-carcinogenic risk on microcytins for human health in two reservoirs,Chongqing,we adopted the method of USEPA to assess the annual risk of human exposed to microcytins by drinking contaminated water and consuming aquatic products in reservoir A and reservoir B.The results showed the annual non-carcinogenic risk by drinking water of reservoir A rangs from 0.001×10-6 to 0.004×10-6 a-1,while reservoir B rangs from 0.002×10-6 to 0.046×10-6 a-1. By consuming aquatic products, the non-carcinogenic risk of reservoir A rangs from 0.083×10-6 to 0.262×10-6 a-1,and reservoir B rangs from 0.116×10-6 to 0.747×10-6 a-1.The maximal total annual non-carcinogenic risk by drinking contaminated water and consuming aquatic products of reservoir A is 0.266×10-6 a-1,while the reservoir B is 0.793×10-6 a-1.The annual non-carcinogenic risk by consuming aquatic products is higher than drinking water, and silver carp has the highest risk on human health;The total annual non-carcinogenic risk of reservoir B is approaching to the maximum acceptable risk level of 1.0×10-6 a-1.More attentions should be paid to monitor microcystins of reservoir B preferentially,and avoid to consume the aquatic products of contaminated reservoirs, especially silver carp.
杨晓红, 蒲朝文, 张仁平, 赵清, 许川, 李砚, 封雷, 舒为群. 水体微囊藻毒素污染对人群的非致癌健康风险[J]. 中国环境科学, 2013, 33(1): 181-185.
YANG Xiao-Hong, PU Chao-Wen, ZHANG Ren-Ping, ZHAO Qing, XU Chuan, LI Yan, FENG Lei, SHU Wei-Qun. Assessment on non-carcinogenic health risk of microcytins in the water environment of Chongqing. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(1): 181-185.