城市环境废水处理过程中的生物气溶排放以及潜在的健康影响
Yogesh Kumar Vishwakarma1, Mayank2, Kirpa Ram3
1Department of Chemical Engineering & Technology, IIT (BHU), Varanasi, 221005, India.
Journal of environmental management
|May 28, 2024
概括
污水处理厂释放季节性生物气溶,具有更高的真菌度和夏季增加的气溶. 这些空气传播的微生物对附近的人群构成健康风险,包括呼吸道问题和皮肤刺激.
科学领域:
- 环境微生物学 环境微生物学
- 公共卫生 公共卫生
- 空气质量 空气质量
背景情况:
- 污水处理厂 (WWTP) 是空气中的微生物 (生物气溶) 的来源.
- 生物气溶的产生受到工厂运营和季节性等环境因素的影响.
- 了解生物气溶的特性对于评估公共卫生风险至关重要.
研究的目的:
- 调查和描述WWTPs的细菌和真菌生物气溶排放.
- 为了确定季节和流量对生物气溶生成的影响.
- 评估与WWTP生物气溶暴露相关的潜在健康影响.
主要方法:
- 生物气溶采样和表征 (度,尺寸分布).
- 生物气溶生成和气溶化比率的季节性分析.
- 用于微生物识别的元基因组测序 (16S和ITS).
- 主导细菌种的抗生素耐药性概况.
- 在WWTP附近的社区进行健康调查.
主要成果:
- 菌生物气溶度全年都高于细菌度.
- 生物气溶生成和气溶化率在夏季明显高于冬季.
- 主导的细菌包括Bacillus和Curtobacterium; 主导的真菌包括Xylariales和Hypocreales.
- 细菌属表现出对亚齐思罗素和cefixime的耐药性.
- 卫生调查显示,附近居民的呼吸系统问题,皮肤皮疹和感官刺激增加.
结论:
- 气候热带污染物是空气中微生物的重要来源,排放的季节性变化.
- 来自WWTP的生物气溶含有各种细菌和真菌,其中一些具有抗生素耐药性.
- 暴露于WWTP生物气溶与周围人口的不良健康结果有关.
- 需要进一步的研究和减缓策略来解决与WWTP排放有关的公共卫生问题.
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