当前位置: X-MOL 学术Bull. Environ. Contam. Toxicol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Environmental distribution and risk of exposure of Heavy Metal Pollutants from Lolgorian Artisanal Gold Mining in Kenya
Bulletin of Environmental Contamination and Toxicology ( IF 2.7 ) Pub Date : 2022-07-04 , DOI: 10.1007/s00128-022-03575-7
Leonard L Tampushi 1 , John M Onyari 2 , Nzioka J Muthama 1
Affiliation  

The aim of the study was to assess the distribution of heavy metals in the environmental compartments from artisanal and small-scale gold mining (ASGM) activities from Lolgorian, Kenya. The investigation was carried out using Inductively-Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Mercury (p > 0.05) (p = 0.755), arsenic (p = 0.182), and lead (p = 0.430) mean concentrations in soil, water, sediments, and ore were not significantly different. The mean mercury, lead, and arsenic concentrations in the water were 0.66 mg/L, 0.46 mg/L, and 1.25 mg/L, respectively. In sediments, the mean values of Cr (66.65 mg/kg), Zn (45.62 mg/kg), Hg (24.63 mg/kg), Pb (22.35 mg/kg), Cd (0.90 mg/kg), and Mn (613.10 mg/kg) were found to be significantly higher. A positive correlation between ore-tailings (r = 0.971109), tailings-sediment (r = 0.9441036), and ore-sediment (r = 0.9441036), was observed indicating the presence of harmful heavy metals in the environment in excess of national and World Health Organization (WHO) recommended threshold, posing a high risk of multiple human exposure pathways.



中文翻译:

肯尼亚洛尔戈里安手工金矿重金属污染物的环境分布及暴露风险

该研究的目的是评估来自肯尼亚洛尔戈里安的手工和小规模采金 (ASGM) 活动的环境隔间中的重金属分布。使用电感耦合等离子体光学发射光谱法 (ICP-OES) 进行了研究。汞 ( p  > 0.05) ( p  = 0.755)、砷 ( p  = 0.182) 和铅 ( p = 0.430) 土壤、水、沉积物和矿石中的平均浓度没有显着差异。水中的平均汞、铅和砷浓度分别为 0.66 mg/L、0.46 mg/L 和 1.25 mg/L。在沉积物中,Cr (66.65 mg/kg)、Zn (45.62 mg/kg)、Hg (24.63 mg/kg)、Pb (22.35 mg/kg)、Cd (0.90 mg/kg) 和 Mn ( 613.10 mg/kg)被发现明显更高。观察到尾矿(r = 0.971109)、尾矿沉积物(r = 0.9441036)和矿石沉积物(r = 0.9441036)之间存在正相关,表明环境中有害重金属的存在量超过国家和世界卫生组织 (WHO) 建议的阈值,对多种人体接触途径构成高风险。

更新日期:2022-07-04
down
wechat
bug