【摘要】 2015年11月至2016年1月在浙江嘉兴、江西南昌和江苏淮安的3个垃圾焚烧厂(MSWI)周围进行了环境空气中二噁英(PCDD/Fs)的浓度测定,并对其组成特征进行了分析,同时采用VLIER-HUMAAN模型评估其对人体的健康风险。结果表明,浙江嘉兴的MSWI周围环境空气中PCDD/Fs质量浓度为1.876~6.032 pg/m3,江西南昌为1.365~4.745 pg/m3,江苏淮安为1.526~1.777 pg/m3。1,2,3,4,6,7,8-七氯代二苯并二噁英(1,2,3,4,6,7,8-Hp CDD)、八氯代二苯并二噁英(OCDD)、1,2,3,4,6,7,8-七氯代二苯并呋喃(1,2,3,4,6,7,8-Hp CDF)和八氯代二苯并呋喃(OCDF)是3个MSWI周围环境空气中主要的PCDD/Fs单体。健康风险评估结果表明,在3个MSWI周围的居民均处于较为安全的状态,但儿童的PCDD/Fs呼吸日暴露量约是成人的11倍。更多还原

【Abstract】 The concentrations of PCDD/Fs in ambient air were determined around municipal solid waste incinerations( MSWI) in Jiaxing of Zhejiang,Nanchang of Jiangxi and Huai’an of Jiangsu from November 2015 to January 2016. The characteristics of PCDD/Fs composition was analyzed. Besides,health risks were evaluated for the local residents by using VLIER-HUMAAN model. Results showed that the concentrations of PCDD/Fs were 1. 876-6. 032 pg/m3 in Jiaxing of Zhejiang,1. 365-4. 745 pg/m~3 in Nanchang of Jiangxi and 1. 526-1. 777 pg/m3 in Huai’an of Jiangsu,respectively. 1,2,3,4,6,7,8-Hp CDD,OCDD,1,2,3,4,6,7,8-Hp CDF and OCDF were main PCDD/Fs congeners around 3 MSWI. The result of health risk assessment indicated that the local residents around 3 MSWI were at safe level,but the daily exposure dose of PCDD/Fs by respiration for children was about 11 times of that for adults.更多还原