风堆肥厂的生物气溶排放和潜在的健康影响:一个半干旱地区的案例研究
Fariba Mirzaienia1,2, Mina Sheikh1, Mahnaz Nikaeen1
1Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
International journal of environmental health research
|January 27, 2026
概括
堆肥产生的生物气溶排放,特别是细菌,对工人造成健康风险. 然而,真菌生物气溶对于半干旱地区的居民来说不那么令人担忧,因为湿度低.
科学领域:
- 环境科学 环境科学
- 职业健康 职业健康 职业健康
- 微生物学 微生物学
背景情况:
- 堆肥设施可以释放空气中的微生物 (生物气溶).
- 这些生物气溶可能对工人和附近社区构成健康风险.
- 了解生物气溶排放模式对于风险评估至关重要.
研究的目的:
- 调查城市固体废物堆肥设施中的生物气溶排放.
- 评估对工人和居民的相关健康风险.
- 为了确定环境因素对生物气溶度的影响.
主要方法:
- 从设施的不同距离 (上风和下风) 进行空气采样.
- 细菌和真菌度的量化 (CFU/m3).
- 对环境因素 (风速,温度,湿度) 的分析.
主要成果:
- 在翻转地点发现了最高的生物气溶水平 (细菌:9307 CFU/m3,真菌:763 CFU/m3).
- 生物气溶度随着距离的增长而下降,在风向下250米处低于背景水平.
- 风速影响细菌排放;温度与真菌度有负相关性.
结论:
- 堆肥阶段,如翻转和选,释放出大量的生物气溶,主要是细菌,对工人构成风险.
- 由于迅速分散,附近居民的暴露风险是最小的.
- 半干旱气候中的低湿度降低了真菌生物气溶的生存率,降低了相关风险.
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