摘要
本文通过对垃圾焚烧炉废气和周边环境空气采样,采用同位素稀释-高分辨气相色谱/高分辨质谱(HRGC-HRMS)法分析样品中二噁英浓度。废气样品中二噁英总浓度为0.919~1.152 ng TEQ/m^3,总毒性当量为0.071~0.100 ng TEQ/m^3,环境空气样品中二噁英总浓度为1.194~2.268 pg TEQ/m^3,总毒性当量为0.100~0.200 pg TEQ /m^3。比较废气与环境空气中各PCDD/Fs单体浓度的占比,得出该农村区域范围内环境空气中二噁英污染物主要来源于该垃圾焚烧炉。
The concentration of dioxins in waste gas from waste incinerator and ambient air was determined by HRGC-HRMS.The total concentration of dioxins in the exhaust gas sample was 0.919-1.152 ng TEQ/m^3,the total toxic equivalent was 0.071-0.100 ng TEQ/m^3,the total toxic equivalent was 1.194-2.268 pg TEQ/m^3 and the total toxic equivalent was 0.100-0.200 pg TEQ/m^3.By comparing the ratio of PCDD / Fs monomer concentration in exhaust gas and ambient air,it is concluded that the main source of dioxin pollution in ambient air in this rural area is the incinerator.
作者
陈卫海
Chen Weihai(Jiangsu Micro Spectrum Detection Technology Co.,Ltd.,Suzhou Jiangsu 215122,China)
出处
《环境与发展》
2020年第2期50-50,52,共2页
Environment & Development
关键词
垃圾焚烧
环境空气
二噁英
Waste incineration
Ambient air
Dioxin
