巴伦茨地区的 - - 河流流,源头和环境度
Cathrine Brecke Gundersen1, Evgeniy Yakushev2, Petr Terentjev3
1Norwegian Institute for Water Research (NIVA), Økernveien 94, 0579, Oslo, Norway.
Environmental pollution (Barking, Essex : 1987)
|June 25, 2023
概括
北极河流中的 (Hg) 污染日益令人担忧. 本研究确定了巴伦茨地区的工业Hg来源,并提供了新的数据,显示了河流中的季节性Hg水平,有助于全球减少污染的努力.
科学领域:
- 环境科学 环境科学
- 北极研究 北极研究
- 地质化学 地质化学
背景情况:
- 北极河流是运送 (Hg) 到北冰洋的重要通道.
- 关于北极的陆地气来源和河流气水平的知识有限.
- 巴伦茨地区的工业发展带来了潜在的Hg释放问题.
研究的目的:
- 为提供挪威和俄罗斯大陆排水到巴伦茨海的潜在Hg释放源的首次概述.
- 审查现有的有关淡水体近确定来源的水平的数据.
- 提交关于五条巴伦茨河季节性度和流量的新数据.
主要方法:
- 收集和审查有关潜在气来源 (采矿,工业,废物,燃烧,军事) 的数据.
- 分析这些来源附近的淡水系统中可用的Hg数据.
- 在五条主要的巴伦茨河流中测量和分析Hg度和季节性.
主要成果:
- 确定了多个潜在的释放来源,包括采矿,金,历史工业,废物管理,化石燃料和军事活动.
- 偶尔观察到的Hg水平超过国家污染限值,对当地居民和野生动物构成风险.
- 新的数据显示,河流Hg水平具有显著的季节性,每年的流量估计为泛北极总量的2%.
结论:
- 巴伦茨海峡地区拥有多样化的气来源,影响淡水系统.
- 现有的Hg数据稀少,强调需要进行系统的监测.
- 新的河流Hg数据为减轻Hg污染提供了关键的见解,并为"米纳马塔公约"的实施提供了信息.
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