安全与环境工程2016，Vol.23Issue(5)：92-96,5.DOI:10.13578/j.cnki.issn.1671-1556.2016.05.015
广州市感潮水源河段重金属分布特征及健康风险评价
Distribution Characteristics and Health Risk Assessment of Heavy Metals in the Tidal River Sections in Guangzhou City
摘要
Abstract
This paper reports a monitoring result of 7 kinds of heavy metals from 1 3 sections of Guangzhou Shawan waterway which is the drinking water source during ebb and flow tidal period.Then the paper con-ducts health risk assessment of heavy metals using chemical carcinogens and chemical non-carcinogens health risk assessment models,and explores the temporal and spatial distribution characteristics and health risks of heavy metals.The results show that the heavy metals in the tidal river has significant difference in spatial distribution,yet the effect of the tidal on the heavy metals content is not obvious.In addition,the health risk levels of chemical non-carcinogenic heavy metals,namely,Cu,Hg and Zn,are 10-10 a-1 ,are much lower than the recommended acceptable limits of Sweden,Holland and the UK (1 ×10-6 a-1 ).How-ever,the health risk levels of chemical carcinogenic heavy metals are much higher.Chemical carcinogens As and Cd have annually average risk levels of 10-5 a-1 and 10-6 a-1 respectively.The latter is close to the rec-ommended acceptable risk levels of Sweden,Holland and the UK(1 ×10-6 a-1 ),while the former is close to the recommended acceptable risk level(5 ×10-5 a-1 )of the International Commission on Radiological Pro-tection(ICRP),which is of high carcinogenic risk in need of priority control.关键词
感潮河流/饮用水源/重金属/健康风险评价/广州市Key words
tidal river/drinking water source/heavy metal/health risk assessment/Guangzhou City分类
资源环境引用本文复制引用
商仲彬,黄璨,余光伟..广州市感潮水源河段重金属分布特征及健康风险评价[J].安全与环境工程,2016,23(5):92-96,5.基金项目
广东省科技计划项目 （）
