东印度重金属污染的采矿场所的生态风险评估使用土壤和
Swayam Prakash Nanda1, Bibhu Prasad Panda1, Kishore C S Panigrahi2
1Environmental Science, Department of Chemistry, Institute of Technical Education & Research, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, Odisha, India.
Environmental monitoring and assessment
|October 7, 2024
概括
采矿活动增加了重金属污染,威胁到生态系统. 这项研究使用印度奥迪沙州的作为生物指标,揭示了土壤污染和生态风险,强调了基于的监测的必要性.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 地质化学 地质化学
背景情况:
- 工业化和城市化推动了采矿活动的增加,导致大量的重金属排放到环境中.
- 这些重金属污染物对生态系统健康和生物多样性构成相当大的威胁.
- 因其在监测环境污染方面作为生物指标的潜力而越来越受认可.
研究的目的:
- 评估印度东部 (奥迪沙州) 矿业影响土壤中的重金属污染.
- 评估研究矿场中重金属的生态风险和污染因子.
- 为了确定作为重金属污染的生物指标的有效性.
主要方法:
- 从奥迪沙州的三个不同的采矿场所收集了48个土壤样本:苏金达山谷 (SP1),乔达-巴比尔 (SP2) 和科伊拉-乔达 (SP3).
- 在土壤样本中分析重金属度 (Cr, Ni, Fe, Mn, Cd, Pb, Hg, As, Cu, Zn).
- 计算生态风险,地质积累因子 (Igeo) 和污染因子 (EF) 以评估污染水平.
- 识别物种并分析它们的重金属积累模式.
主要成果:
- 在整个采矿场地观察到重金属度的显著变化,储存区显示最高水平.
- SP1记录了高度的Cr (6572±445毫克/公斤) 和Ni (8042.47±501.38毫克/公斤),超过了生态毒理界限.
- SP2显示高Fe (9872±502毫克/公斤),和SP3已经提高了Mn水平 (7884±432毫克/公斤).
- EF和Igeo评估表明Cd,Pb和Hg的污染,与Pb,As,Cu,Ni和Zn相关的生态风险更高.
- 发现特定的物种,如Hyophila involuta,Barbula arcuata,Trematodon longicollis,Trematodon ambiguous和Fissidens diversifolius,可以积累各种重金属.
结论:
- 树作为有效的生物指标,用于监测重金属污染在采矿受影响的环境.
- 研究的采矿场所表现出相当大的重金属污染,构成重大生态风险.
- 使用生物指标对重金属污染的持续监测对于管理受污染区域至关重要.
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