墨西哥西北部圣洛伦索河上游一处尾矿泄漏所影响区域的水体及悬浮沉积物中的重金属
Heavy metals in waters and suspended sediments affected by a mine tailing spill in the upper San Lorenzo River, Northwestern México.
作者信息
Páez-Osuna F, Bojórquez-Leyva H, Bergés-Tiznado M, Rubio-Hernández O A, Fierro-Sañudo J F, Ramírez-Rochín J, León-Cañedo J A
机构信息
Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Joel Montes Camarena s/n, 82040, Mazatlán, Sinaloa, Mexico,
出版信息
Bull Environ Contam Toxicol. 2015 May;94(5):583-8. doi: 10.1007/s00128-015-1473-0. Epub 2015 Jan 31.
Concentrations of arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), mercury (Hg), silver (Ag) and zinc (Zn) were evaluated in water and suspended sediments of the upper waters of San Lorenzo River in NW Mexico following a mine tailing spill. Except As (6.64-35.9 µg L(-1)), dissolved metal concentrations were low (Ag <0.06-0.22; Cd 0.01-0.34; Cu 4.71-10.2; Hg 0.02-0.24; Pb <0.15-0.65; Zn 86-1,080 µg L(-1)) and were less than the upper limits established by UNEP (Water quality for ecosystem and human health, 2nd edn. United Nations Environment Programme Global Environment Monitoring System/Water Programme, Burlington, 2008), EPA (2014) and the Mexican regulation (NOM 1994). In contrast, the suspended metal concentrations were high (As 91.4-130; Ag 22.1-531; Cd 3.14-6.30; Cu 65-123; Hg 0.47-1.09; Pb 260-818; Zn 742-1,810 mg kg(-1)) and most of samples exceeded the probable effect level of the Canadian Sediment Quality Guidelines for the Protection of Aquatic Life.
在墨西哥西北部一次尾矿泄漏事故后，对圣洛伦索河上游水域的水和悬浮沉积物中的砷（As）、镉（Cd）、铜（Cu）、铅（Pb）、汞（Hg）、银（Ag）和锌（Zn）浓度进行了评估。除砷（6.64 - 35.9 µg L⁻¹）外，溶解态金属浓度较低（银＜0.06 - 0.22；镉0.01 - 0.34；铜4.71 - 10.2；汞0.02 - 0.24；铅＜0.15 - 0.65；锌86 - 1,080 µg L⁻¹），且低于联合国环境规划署（《生态系统与人类健康水质》，第2版。联合国环境规划署全球环境监测系统/水方案，伯灵顿，2008年）、美国环境保护局（2014年）和墨西哥法规（NOM 1994）规定的上限。相比之下，悬浮态金属浓度较高（砷91.4 - 130；银22.1 - 531；镉3.14 - 6.30；铜65 - 123；汞0.47 - 1.09；铅260 - 818；锌742 - 1,810 mg kg⁻¹），且大多数样品超过了加拿大《保护水生生物沉积物质量指南》的可能影响水平。
Zotero 插件