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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.3
- 수록면
- 150 - 158 (9page)
이용수
초록· 키워드
오류제보하기
Soil contaminated with heavy metals from artisanal gold mining in Anka Local Government Area in Northwestern Nigeria was investigated to evaluate the human health risk as a result of heavy metals. Measured concentration of heavy metals and exposure parameters were used to estimate human carcinogenic and non-carcinogenic risk. GIS-based Kriging method was utilized to create a prediction maps of human health risks and probability maps of heavy metals concentrations exceeding their threshold limits. Hazard index calculation showed that 21 out of 23 locations are posing non-cancer risk for children. Adults and children are at high cancer risk in all locations as the total cancer risk exceeded 1×10<SUP>-6</SUP> (the lower limit CTR value). Kriging model showed that only a very small area in Anka has a hazard index of less than unity and cumulative target risk of less than 1×10<SUP>-4</SUP>, indicating a significant carcinogenic and non-carcinogenic risks for children. The probability of heavy metals to exceed their threshold concentrations around the study area was also found to be high.
목차
ABSTRACT
1. Introduction
2. Study Area
3. Methodology
4. Results
5. Conclusions
References
참고문헌 (34)
참고문헌 신청
Uriah L, Kenneth T, Rhoda G, Ayuba M. Lead and mercury contamination associated with artisanal gold mining in Anka, Zamfara State, North Western Nigeria: The continued unabated Zamfara lead poisoning. J. Earth Sci. Eng. 2013;3:764-775.
Zhao L, Xu Y, Hou H, Shangguan Y, Li F. Source identification and health risk assessment of metals in urban soils around the Tanggu chemical industrial district, Tianjin. China Sci. Total Environ. 2014;468-469:654-662.
Wei B, Yang L. A review of heavy metal contaminations in urban soils, urban road dusts and agricultural soils from China. Microchem. J. 2010;94:99-107.
Olujimi O, Oputu O, Fatoki O, Opatoyinbo E, Aroyewun A, Baruani J. Heavy metals speciation and human health risk assessment at an illegal gold mining site in Igun, Osun State, Nigeria. J. Health Pollut. 2015;5:19-32.
Doctors Without Borders. Lead poisoning crisis in Zamfara State, Northern Nigeria. c2012. [Cited 30 November 2017]. Available from: http://www.doctorswithoutborders.org/newsstories/ briefing-document/lead-poisoning-crisis-zamfarastate- northern-nigeria.
Zhao L, Xu Y, Hou H, Shangguan Y, Li F. Source identification and health risk assessment of metals in urban soils around the Tanggu chemical industrial district, Tianjin. China Sci. Total Environ. 2014;468-469:654-662.
Wei B, Yang L. A review of heavy metal contaminations in urban soils, urban road dusts and agricultural soils from China. Microchem. J. 2010;94:99-107.
Olujimi O, Oputu O, Fatoki O, Opatoyinbo E, Aroyewun A, Baruani J. Heavy metals speciation and human health risk assessment at an illegal gold mining site in Igun, Osun State, Nigeria. J. Health Pollut. 2015;5:19-32.
Doctors Without Borders. Lead poisoning crisis in Zamfara State, Northern Nigeria. c2012. [Cited 30 November 2017]. Available from: http://www.doctorswithoutborders.org/newsstories/ briefing-document/lead-poisoning-crisis-zamfarastate- northern-nigeria.
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UCI(KEPA) : I410-ECN-0101-2019-539-000032898