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使用被动空气采样器制造添加产品的大气的表征

Qing Luo¹, Yuxuan Ren¹, Zehang Sun²

¹MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.

Environmental pollution (Barking, Essex : 1987)

|September 10, 2023

概括

添加的产品制造严重污染工业城市的空气. 低成本采样显示,工厂附近的气态元素 (GEM) 含量较高,这表明当地的排放是大气污染的主要来源.

科学领域:

环境科学环境科学
大气化学大气化学
职业健康职业健康职业健康

背景情况:

(Hg) 仍然存在于一些产品中,如光灯和电气和电子设备 (EEE).
工业城市,特别是制造业中心,面临着大气污染的重大挑战.
了解当地气排放源对于有针对性的环境管理至关重要.

研究的目的:

为了调查大气中的污染在中山,一个主要的南中国工业城市.
评估低成本的被动空气采样器 (PASs) 对多处监测的有效性.
为了确定来源和估计气态元素 (GEM) 的排放,从添加的产品制造.

主要方法:

在2019年夏天在中山的144个地点部署了低成本的被动空气采样器 (PASs),为期两周.
在环境空气中测量气态元素 (GEM) 度.
将PAS结果与主动采样进行比较,以验证准确性和可靠性.
根据光灯和电子电子设备的生产规模,估计排放量.

主要成果:

在多个地点对GEM的实地监测中,PAS被证明是准确和可靠的.
与其他区域相比,在添加产品制造的地区,平均GEM度显著更高 (5.1 ng m−3) (1.5 ng m−3).
在光灯和电子电子设备工厂附近检测到高GEM水平 (高达11.4 ng m-3),这表明过时的技术和操作实践产生的大量蒸汽排放.

结论:

添加产品制造的当地排放是中山大气Hg污染的主要驱动因素.
添加的产品制造业在工业地区对人为气态的释放有很大贡献.
虽然非致癌性健康风险被认为是可以接受的,但在污染地区的吸入暴露超过了通过饮食摄入的风险.

关键词:

电子电气设备生产电子电气设备生产排放来源排放来源排放来源光灯生产光灯的生产气态元素 (GEM) 是一种气态元素.危害健康的风险健康风险被动抽样是一种被动抽样.

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