Environmental and Health Impacts: Presence of Radionuclides and Toxic Metals in Mining Areas in Niger State, Nigeria

IF 0.4 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Journal of Environmental Science and Management Pub Date : 2023-06-30 DOI:10.47125/jesam/2023_1/05

E. Faweya, M. Ayeni, T. Adewumi, O. Faweya

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Abstract

The distribution of radionuclides and heavy metals (carcinogenic and non-carcinogenic) in soil and plants grown in lead contaminated areas were determined using gamma spectrometry and AAS (Atomic Absorption Spectrometry). The values of Dout (outdoor dose rate) and Din (indoor dose rate) were found to vary from 49.10 to 96.59 nGy h-1 with a mean value of 73.75 nGy h-1 and 97.30 to 191.67 nGy h-1 with a mean value of 143.39 nGy h-1 for Kawo; 51.64 to 105.26 nGy h-1 with a mean value of 75.36 nGy h-1 and 104.43 to 205. 87 nGy h-1 with a mean value of 157.13 nGy h-1 for Magiro. The weighted mean concentrations of Pb, Cu, Fe, Cr, Cd and Ni in mg kg-1 in soil and crop were (2.20,2.29), (3.14, 0.16), (15.10, 19.33), (0.16, 0.25), (0.24, 0.05), (0.43, 0.06) and (3.00, 3.18), (6.09, 0.34), (16.83, 10.10), (0.22,0.36), (0.25, 0.05), (0.43, 0.06) for Kawo and Magiro respectively. The total incremental lifetime cancer risk ΣILCR for both adults (0.73 x 10-2) and children (1.03 x 10-2) were above tolerable acceptable risk (given as 1 x 10-6 to 1 x 10-4). Therefore, the areas need remedial action and proper monitoring.

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环境和健康影响:尼日利亚尼日尔州矿区放射性核素和有毒金属的存在

利用伽马能谱法和原子吸收光谱法测定了铅污染地区土壤和植物中放射性核素和重金属(致癌和非致癌)的分布。室外剂量率Dout和室内剂量率Din分别为49.10 ~ 96.59 nGy h-1和97.30 ~ 191.67 nGy h-1，平均值为143.39 nGy h-1;51.64 ~ 105.26 nGy h-1，平均值75.36 nGy h-1, 104.43 ~ 205。Magiro的平均值为157.13 nGy h-1，为87 nGy h-1。土壤和作物中Pb、Cu、Fe、Cr、Cd、Ni的mg kg-1加权平均浓度分别为(2.20、2.29)、(3.14、0.16)、(15.10、19.33)、(0.16、0.25)、(0.24、0.05)、(0.43、0.06)、(3.00、3.18)、(6.09、0.34)、(16.83、10.10)、(0.22、0.36)、(0.25、0.05)、(0.43、0.06)。成人(0.73 × 10-2)和儿童(1.03 × 10-2)的终生癌症总增量风险ΣILCR均高于可容忍的可接受风险(以1 × 10-6至1 × 10-4表示)。因此，这些领域需要采取补救行动和适当的监测。

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来源期刊

Journal of Environmental Science and Management ENVIRONMENTAL SCIENCES-

CiteScore

0.90

自引率

0.00%

发文量

审稿时长

2 months

期刊介绍： The Journal of Environmental Science and Management (JESAM) is an international scientific journal produced semi-annually by the University of the Philippines Los Baños (UPLB). JESAM gives particular premium to manuscript submissions that employ integrated methods resulting to analyses that provide new insights in environmental science, particularly in the areas of: environmental planning and management; protected areas development, planning, and management; community-based resources management; environmental chemistry and toxicology; environmental restoration; social theory and environment; and environmental security and management.