中国有机物污染的城市河流中的金属化物:空间模式,生态风险和与水生微生物群的互动
Qihong Lu1, Xiangping Xu1, Wenwen Fang1
1Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China.
Journal of hazardous materials
|June 14, 2023
概括
重金属污染了中国的环境.
科学领域:
- 环境化学环境化学
- 环境微生物学 环境微生物学
- 生态毒理学 生态毒理学
背景情况:
- 黑色臭味的城市河流充当重金属和污染物的沉水池.
- 污水产生的有机物质影响重金属的命运和生态影响.
- 关于这些河流中重金属污染和微生物群相互作用的数据有限.
研究的目的:
- 为了评估中国黑色臭味的城市河流的全国重金属污染.
- 评估这些环境中重金属所带来的生态风险.
- 研究重金属和有机物对河流微生物组的相互影响.
主要方法:
- 全国范围内从中国74个城市的173条黑色臭味的城市河流中取取沉积物样本.
- 对重金属度 (Cu, Zn, Pb, Cr, Cd, Li) 的分析.
- 评估重金属物种化和生物可用性,以及对 prokaryotic 和 eukaryotic 社区的影响.
主要成果:
- 六种重金属受到大量污染,其度是土壤背景值的1.85~6.90倍.
- 在中国南部,东部和中部观察到较高的污染水平.
- 黑色气味的河流中,不稳定的重金属的比例较高,表明生态风险增加.
- 有机物通过微生物过程显著影响重金属的物种化和生物可用性.
- 重金属对 prokaryotic 种群的影响比eukaryotic 种群的影响更大.
结论:
- 中国的黑色臭味的城市河流受到重金属的严重污染.
- 这些有机污染系统中的重金属与生态风险有关.
- 有机物和微生物活动在重金属的行为和生态影响中起着至关重要的作用.
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