城市环境中的固体废物处理设施的生物气溶排放及其对人类健康的影响
Yogesh Kumar Vishwakarma1, Neelmani Bhardwaj2, Kirpa Ram3
1Department of Chemical Engineering & Technology, IIT (BHU), Varanasi 221005, India.
The Science of the total environment
|July 15, 2025
概括
废物处理释放出高水平的细菌和真菌生物气溶,造成呼吸道和皮肤健康风险. 需要改进安全协议,以保护工人和附近的人口免受这些空气传播污染物的侵害.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 发展中国家的废物管理面临着城市化和人口增长带来的挑战.
- 废物处理,包括堆肥,可以将生物气溶释放到大气中.
- 了解生物气溶的成分和对健康的影响对于有效的废物管理至关重要.
研究的目的:
- 在废物处理设施中量化细菌和真菌生物气溶度.
- 使用元基因组学分析来描述占主导地位的微生物物种.
- 评估对暴露人口的潜在健康影响.
主要方法:
- 空气采样以测量细菌和真菌生物气溶的度和尺寸分布.
- 超基因组分析以确定主导的细菌和真菌种类.
- 工人和附近居民的横截面健康调查.
主要成果:
- 细菌生物气溶中的平均度:2979 ± 544 CFU/m3;真菌生物气溶中的平均度:2288 ± 1128 CFU/m3.
- 细菌生物气溶主要处于较细的范围 (0.65-1.1μm),而真菌生物气溶则处于粗的尺寸范围 (3.3-7.0μm).
- 主导细菌包括Alcaligenaceae,Stenotrophomonas和Bacillus; 主导的真菌包括Fusarium,Epicoccum和Hypocreales.
- 关键的细菌菌株对阿齐思罗米和cefixime表现出耐药性.
- 健康调查显示,参与者之间有呼吸道,皮肤和眼睛刺激以及气味投诉.
结论:
- 废物处理设施排放大量的细菌和真菌生物气溶.
- 鉴定的微生物群落和抗生素耐药性模式突出显示了潜在的环境和健康问题.
- 调查结果强调需要加强安全协议,以减轻工人和周围社区的健康风险.
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