研究多环芳在生物保留设施中的积累及其对微生物社区结构的影响
Ya-Jiao Li1, Yan-Ting Shi1, Ling-Zhi Zhao1
1School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an, 710054, China.
Environmental science and pollution research international
|August 26, 2023
概括
多环芳 (PAH) 在城市生物保留设施中积累,在干旱时期的度更高. 虽然PAHs对微生物群落产生影响,但它们具有较低的致癌风险,并且不会显著改变水质或水量.
科学领域:
- 环境科学 环境科学
- 环境化学环境化学
- 微生物学 微生物学
背景情况:
- 生物储存设施对于城市雨水管理至关重要.
- 了解这些系统中多环芳 (PAH) 的命运和影响对于环境保护至关重要.
研究的目的:
- 调查PAHs在生物保留设施中的积累情况.
- 评估PAHs对微生物群落结构和功能的影响.
- 为了确定PAHs和主导微生物之间的相关性.
主要方法:
- 在现场监测生物保留设施.
- 水分配模拟实验的实验.
- 对PAH度和微生物群落结构的分析.
主要成果:
- 检测到所有16个优先PAHs,在非雨季期间度更高.
- 多氧化主要来源于煤炭和生物质燃烧,具有较低的致癌风险.
- 微生物多样性在非雨季更高;特定的细菌与某些PAH相关.
- 酸显著改变了微生物群落结构和抑制了酶活性,对水量或质量参数的影响最小.
结论:
- 生物保留设施积累PAH,受季节性和污染源的影响.
- 氧化碳在生物保留系统中对微生物群落产生重大影响.
- 虽然PAHs具有较低的致癌风险,但它们对微生物结构的影响需要进一步调查,以有效管理雨水.
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