多环芳 (PAH) 在匈牙利多河的时间和空间分布
Ruqayah Ali Grmasha1,2,3, Csilla Stenger-Kovács1,4, Osamah J Al-Sareji2,3
1Limnology Research Group, Center for Natural Science, University of Pannonia, Egyetem Utca 10, 8200, Veszprém, Hungary.
Scientific reports
|April 9, 2024
概括
多环芳 (PAH) 在多河中超过了饮用水限量,对水生生物和人类健康构成风险. 冬季在水和沉积物中显示出更高的PAH度,其中 pyrogenic 源占主导地位.
科学领域:
- 环境化学环境化学
- 生态毒理学 生态毒理学
- 河流生态系统 河流生态系统
背景情况:
- 多河面临着工业和废水排放造成的污染.
- 这些污染物降低了水和沉积物质量,威胁到水生生态系统.
- 多环芳 (PAH) 是一个关键的污染物.
研究的目的:
- 研究16种多环芳 (PAH) 在多河的时间和空间分布.
- 评估PAHs对水和沉积物质量的影响.
- 评估与PAH污染相关的潜在人类健康风险.
主要方法:
- 在水和沉积物样本中分析了16种多环芳 (PAH).
- 在多河沿线的六个不同地点进行了超过12个月的采样.
- 检测到的PAH水平与欧洲饮用水指令和沉积物质量标准 (SQG) 的比较.
主要成果:
- 水中的PAH度在224.8 ng/L (夏季) 到365.8 ng/L (冬季) 之间.
- 沉积物中的PAH含量从316.7 ng/g dw (夏季) 到422.9 ng/g dw (冬季) 不同.
- 饮用水的100 ng/L极限被观察到超过,冬季水平更高.
- 发烧源被确定为PAH污染的主要贡献者.
- 沉积物中PAH水平通常低于效应范围低 (ERL),除了乙甲烯和烯.
- 成人和儿童的个人终身癌症风险 (ILCR) 超过了1/10^4.
结论:
- 多河的水和沉积物受到PAHs的显著影响,季节性变化.
- 酸污染对水生生态系统和人类健康构成相当大的风险.
- 需要有效的管理策略来减轻人为来源的PAH污染.
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