巴基斯坦非正式电子废物回收设施的气体元素排放
Mureed Kazim1, Jabir Hussain Syed2, Perihan Binnur Kurt-Karakus3
1Department of Environmental Sciences, International Islamic University, Islamabad, Pakistan.
Waste management (New York, N.Y.)
|September 20, 2023
概括
巴基斯坦非正式的电子废物回收会释放出大量的气态元素 (GEM). 在主要城市和温暖的季节发现了更高的GEM度,突出显示了迫切需要电子废物管理政策.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 大气化学 大气化学
背景情况:
- (Hg) 对生态系统和人类健康构成重大风险.
- 发达国家已知电子废物回收的气态元素 (GEM) 排放,但全球南方的数据有限.
研究的目的:
- 在巴基斯坦的非正式电子废物回收设施中量化季节性GEM度.
- 评估GEM污染在巴基斯坦不同城市的空间分布.
- 为该地区制定有效的电子废物管理策略提供数据.
主要方法:
- 在一年内部署132个被动空气采样器 (2020年9月至2021年12月).
- 在32个非正式的电子废物回收站点和背景地点进行持续监测.
- 在ng m-3.3中分析季节性解决的GEM度.
主要成果:
- 年平均GEM度从1.8到92 ng m-3.3不等.
- 与海德拉巴相比,卡拉奇,拉合尔和佩沙瓦的度更高,与非正式回收率相关.
- 在秋季和夏季记录了高GEM水平,这表明温度依赖的挥发和季节性回收活动.
结论:
- 非正式的电子废物回收是巴基斯坦GEM污染的重要来源.
- 紧急制定和实施强有力的电子废物管理政策和法规至关重要.
- 解决GEM排放对于保护巴基斯坦的环境和公共健康至关重要.
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