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Assessment of quality and health risk of peri-urban groundwater supply from selected areas of Abeokuta, Ogun State, Southwestern Nigeria
Environmental Geochemistry and Health ( IF 3.2 ) Pub Date : 2020-10-19 , DOI: 10.1007/s10653-020-00746-5
Adewole Michael Gbadebo 1
Affiliation  

Groundwater is an important source of drinking water. However, pollution of groundwater resource could initiate serious health damage to the consumers. The present study aimed at assessing the quality and health risk of groundwater samples collected from the peri-urban areas of Abeokuta. Twelve (12) fresh ditch cuttings from wells sites and forty (40) well water samples were collected between August and September, 2018. Samples were analysed for important physical and chemical parameters using the standard procedure. Groundwater data were subjected to statistical manipulation of descriptive and inferential statistics. The health risk assessment was conducted for non-carcinogenic effect {hazard quotient (HQ), hazard index (HI)} and cancer risk (CR). Results showed the pH of groundwater ranged from 7.65 to 8.48. The electrical conductivity varied from 266.5 to 461.5 µS/cm, while the total dissolved solids ranged from 90.0 to 348.2 mg/L. The concentrations of Pb (1.58–14.5 µg/L), Mn (11.10–836 µg/L), Al (64–2000 µg/L) and Fe (30–5070 µg/L) in groundwater were higher than the permissible limits of the World Health Organization in drinking water. The levels of metals/metalloids in the well cuttings were: Pb (8.9–27.6 µg/kg), As (0.8–8.6 µg/kg), Cr (14.0–98.0 µg/kg) and Mn (138.0–1080 µg/kg). The HQs of Cr (infants and children) and Ba (infants, children and adults) were greater than 1.0 indicating adverse health effects. The CRs of Cr, Co and Ni in water consumed by infants, children and adults were greater than the acceptable limit of 1.0 × 10–4 suggesting possible development of cancer. The health risk data of metals in groundwater indicated deleterious health effects on consumers.



中文翻译:

评估尼日利亚西南部奥贡州阿贝库库塔某些地区的城市周边地下水的质量和健康风险

地下水是饮用水的重要来源。但是,地下水资源的污染可能对消费者造成严重的健康损害。本研究旨在评估从阿贝库塔城郊地区收集的地下水样品的质量和健康风险。在2018年8月至2018年9月之间收集了十二口(12)井场的新鲜沟屑和40(40)口井水样品。采用标准程序对样品进行重要的理化参数分析。对地下水数据进行描述性和推断性统计的统计处理。对非致癌作用{危险商(HQ),危险指数(HI)}和癌症风险(CR)进行了健康风险评估。结果表明,地下水的pH值为7.65至8.48。电导率在266.5至461.5 µS / cm之间变化,而总溶解固体在90.0至348.2 mg / L范围内。地下水中的Pb(1.58–14.5 µg / L),Mn(11.10–836 µg / L),Al(64–2000 µg / L)和Fe(30–5070 µg / L)的浓度均高于允许限值。世界卫生组织的饮用水。切屑中的金属/准金属含量为:铅(8.9–27.6 µg / kg),砷(0.8–8.6 µg / kg),铬(14.0–98.0 µg / kg)和锰(138.0–1080 µg / kg) )。Cr(婴儿和儿童)和Ba(婴儿,儿童和成人)的HQs大于1.0,表明对健康有不利影响。婴儿,儿童和成人所消耗的水中的Cr,Co和Ni的CR大于可接受的限值1.0×10 地下水中的Pb(1.58–14.5 µg / L),Mn(11.10–836 µg / L),Al(64–2000 µg / L)和Fe(30–5070 µg / L)的浓度均高于允许限值。世界卫生组织的饮用水。切屑中的金属/准金属含量为:铅(8.9–27.6 µg / kg),砷(0.8–8.6 µg / kg),铬(14.0–98.0 µg / kg)和锰(138.0–1080 µg / kg) )。Cr(婴儿和儿童)和Ba(婴儿,儿童和成人)的HQs大于1.0,表明对健康有不利影响。婴儿,儿童和成人所消耗的水中的Cr,Co和Ni的CR大于可接受的限值1.0×10 地下水中的Pb(1.58–14.5 µg / L),Mn(11.10–836 µg / L),Al(64–2000 µg / L)和Fe(30–5070 µg / L)的浓度均高于允许限值。世界卫生组织的饮用水。切屑中的金属/准金属含量为:铅(8.9–27.6 µg / kg),砷(0.8–8.6 µg / kg),铬(14.0–98.0 µg / kg)和锰(138.0–1080 µg / kg) )。Cr(婴儿和儿童)和Ba(婴儿,儿童和成人)的HQs大于1.0,表明对健康有不利影响。婴儿,儿童和成人所消耗的水中的Cr,Co和Ni的CR大于可接受的限值1.0×10 铅(8.9–27.6 µg / kg),砷(0.8–8.6 µg / kg),铬(14.0–98.0 µg / kg)和锰(138.0–1080 µg / kg)。Cr(婴儿和儿童)和Ba(婴儿,儿童和成人)的HQs大于1.0,表明对健康有不利影响。婴儿,儿童和成人所消耗的水中的Cr,Co和Ni的CR大于可接受的限值1.0×10 铅(8.9–27.6 µg / kg),砷(0.8–8.6 µg / kg),铬(14.0–98.0 µg / kg)和锰(138.0–1080 µg / kg)。Cr(婴儿和儿童)和Ba(婴儿,儿童和成人)的HQs大于1.0,表明对健康有不利影响。婴儿,儿童和成人所消耗的水中的Cr,Co和Ni的CR大于可接受的限值1.0×10–4表明可能发生癌症。地下水中金属的健康风险数据表明对消费者的健康危害。

更新日期:2020-10-19
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