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来自工业活动的含Fe纳米颗粒的大气排放量

Qiuting Yang¹, Lili Yang¹, Lingna Zheng²

¹State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.

The Science of the total environment

|December 4, 2024

概括

工业活动将大量含铁纳米粒子 (NP) 释放到空气中,造成潜在的健康风险. 危险废物焚烧和铁/钢生产是主要的排放来源,需要关注可持续发展.

科学领域:

环境科学环境科学
纳米技术纳米技术
公共卫生公共卫生

背景情况:

吸入含铁纳米粒子 (Fe-NPs) 的空气可以导致它们在人体器官中积累.
了解工业活动中非故意释放的Fe-NPs对于公共卫生和可持续发展至关重要.

研究的目的:

量化各种工业厂的Fe-NPs排放量.
确定有助于大气Fe-NPs污染的主要工业来源.
评估与工业Fe-NPs排放相关的潜在健康风险.

主要方法:

在13个工业类别的132个大型工厂收集了细颗粒物.
收集的颗粒物中的量化Fe-NPs度.
这些行业的Fe-NPs年度大气排放量计算.

主要成果:

大多数工业Fe-NPs的直径小于80 nm.
危险废物焚烧,高炉生铁生产和电弧炉钢铁制造显示出Fe-NPs度最高.
中国13个行业的Fe-NPs年度大气总排放量达到1.03 × 10^24个颗粒.
七个特定行业 (燃煤发电厂,水泥炉共同加工,高炉,焦化,烧结,EAF钢铁制造,危险废物焚烧) 占总排放的99.9%.

结论:

工业活动,特别是危险废物焚烧和铁/钢生产,是空气中的Fe-NP的重要来源.
在工厂附近的Fe-NPs大气度升高对公众造成潜在的健康风险.
这些发现对于评估工业排放和促进可持续工业发展至关重要.

关键词:

大气中的排放量.排放因子排放因子排放因子含有Fe的纳米粒子.工业贡献者的工业贡献者颗粒数的度颗粒数的度

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