Laniyan T A, Morakinyo O M
Department of Environmental Health Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Nigeria.
Heliyon. 2021 Apr 16;7(4):e06796. doi: 10.1016/j.heliyon.2021.e06796. eCollection 2021 Apr.
Increased anthropogenic activities may cause the release of potentially hazardous metals into the environment. This is a major public health concern. The study was aimed at accessing ways by which pollution can be prevented with enhanced environmental sustainability in Ibadan, Southwestern, Nigeria. Geo-materials (groundwater, soil and stream sediment) were collected, analyzed for heavy metals using inductively coupled plasma-mass spectrometry. Results of acidity (pH), electrical conductivity (EC), total dissolved solid (TDS) and heavy metals (Zn, As, and Cd) obtained in water were compared with WHO permissible limits. All parameters were found within WHO permissible limits except TDS (624.35 mg/L). Risk index showed dangerous to extremely dangerous. High TDS can be attributed to weathering while high Cd, Zn and Pb in stream sediment and soil are due to anthropogenic effect. Provision of adequate disposal facilities should be created by private and government agencies and the use of it must be enforced.
日益增加的人为活动可能导致潜在有害金属释放到环境中。这是一个重大的公共卫生问题。该研究旨在探寻在尼日利亚西南部伊巴丹市增强环境可持续性以预防污染的方法。收集了地质材料（地下水、土壤和河流沉积物），采用电感耦合等离子体质谱法分析其中的重金属。将水中获得的酸度（pH值）、电导率（EC）、总溶解固体（TDS）和重金属（锌、砷和镉）的结果与世界卫生组织的允许限值进行了比较。除TDS（624.35毫克/升）外，所有参数均在世界卫生组织允许限值范围内。风险指数显示为危险到极其危险。高TDS可归因于风化作用，而河流沉积物和土壤中高含量的镉、锌和铅则是人为影响所致。私人和政府机构应提供足够的处置设施，并必须强制使用这些设施。
