Concentrations and human health implications of heavy metals in market foods from a Chinese coal-mining city

2017 ◽  
Vol 50 ◽  
pp. 37-44 ◽  
Author(s):  
Jiali Cheng ◽  
Xianhui Zhang ◽  
Zhenwu Tang ◽  
Yufei Yang ◽  
Zhiqiang Nie ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Coal Mining ◽  
Health Implications ◽  
Mining City ◽  
Chinese Coal

scholarly journals Concentrations, Spatial Distributions, and Sources of Heavy Metals in Surface Soils of the Coal Mining City Wuhai, China

2020 ◽  
Vol 2020 ◽  
pp. 1-10 ◽  
Author(s):  
Qingwei Bu ◽  
Qingshan Li ◽  
Handan Zhang ◽  
Hongmei Cao ◽  
Wenwen Gong ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Coal Mining ◽  
Heavy Metal Contamination ◽  
Interpolation Method ◽  
Kriging Interpolation ◽  
Natural Sources ◽  
Mining City ◽  
Kriging Interpolation Method ◽  
The Mean

Various studies have shown that soils surrounding mining areas are seriously polluted by heavy metals. In this study, 58 topsoil samples were systematically collected throughout the coal mining city Wuhai, located within the Inner Mongolia Autonomous Region of China. The concentrations of As, Hg, Cr, Ni, Cu, Zn, Cd, and Pb in these samples were measured and statistically analyzed. The mean concentrations of all heavy metals were lower than their Grade I values defined by the Chinese Soil Quality Standard. However, the mean concentrations of individual heavy metals in many samples exceeded their background values. The spatial distribution of heavy metals was analyzed by the ordinary kriging interpolation method. The positive matrix factorization model was used to ascertain contamination sources of the eight heavy metals and to apportion the contribution of each source. The most severely polluted area was the Wuhushan mine site in the Wuda district of Wuhai. Our results showed that coal mining strongly affected heavy metal contamination of the local soils. Results of source apportionment indicated that contributions from industrial activities, atmospheric deposition, agricultural activities, and natural sources were 31.3%, 26.3%, 21.9%, and 20.5%, respectively. This clearly demonstrates that anthropogenic activities have markedly higher contribution rates than natural sources to heavy metal pollution in soils in this area.

Assessment of human health risks from heavy metals in outdoor dust samples in a coal mining area

2012 ◽  
Vol 35 (3) ◽  
pp. 347-356 ◽  
Author(s):  
Tofan Kumar Rout ◽  
R. E. Masto ◽  
L. C. Ram ◽  
Joshy George ◽  
Pratap Kumar Padhy
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Coal Mining ◽  
Health Risks ◽  
Mining Area ◽  
Coal Mining Area ◽  
Human Health Risks ◽  
Outdoor Dust

scholarly journals Concentration and Human Health Implications of Trace Metals in Fish of Economic Importance in Lagos Lagoon, Nigeria

2019 ◽  
Author(s):  
Ngozi Oguguah
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Trace Metals ◽  
Human Health ◽  
Health Risks ◽  
Fish Species ◽  
Economic Importance ◽  
World Health ◽  
Health Implications ◽  
Lagos Lagoon

Background. The most significant sources of food-borne diseases are microbiological and chemical hazards. The health risk due to consumption of food from aquatic ecosystems contaminated with hazardous chemicals including metals has increased globally, especially in developing countries like Nigeria.Objectives. The concentration and human health implications of trace metals in fish of economic importance in Lagos lagoon were investigated by determining the degree of contamination with heavy metals of selected fish from Lagos lagoon and assessing the possible health risks associated with fish consumption.Methods. Fish of economic importance including Caranx hippos, Chrysichthys nigrodigitatus, Elops lacerta, Galeoides decadactylus, Ilisha africana, Liza falcipinnis, Lutjanus goreensis, Mugil cephalus, Pseudotolithus senegalensis, Sarotherodon spp, Sphyraena spp, and Tilapia spp were bought from fishermen fishing in Lagos lagoon. The fish tissue samples were digested and analyzed in five replicates for heavy metals (lead, cadmium, iron, manganese and zinc) using a Varian AA600 atomic absorption spectrometer.Results. There were considerable variations in the concentrations of heavy metals among different species. The twelve fish species collected from Lagos lagoon were found to contain various concentrations of heavy metals and the levels of accumulation of these heavy metals varied across different species. Lead, cadmium, and manganese were present in all the studied fish species at higher concentrations than the maximum allowable concentrations in fish recommended by the Food and Agricultural Organization (FAO) and World Health Organization (WHO). The target hazard quotient (THQ) estimated for individual heavy metals through consumption of different fish species was less than 1 for all individual heavy metal in all the fish species.Conclusions. Controls on the dumping of wastes in the lagoon are needed, along with regular monitoring. Currently, no potential non-carcinogenic health risks from ingestion of a single heavy metal through consumption of these fish species was found.

scholarly journals HEAVY METALS IN RIVERS AFFECTED BY MINING ACTIVITIES IN ECUADOR: POLLUTION AND HUMAN HEALTH IMPLICATIONS

2021 ◽  
Author(s):  
KENNY ESCOBAR-SEGOVIA ◽  
SAMANTHA JIMÉNEZ-OYOLA ◽  
DANIEL GARCÉS-LEÓN ◽  
DANIELA PAZ-BARZOLA ◽  
EDUARDO CHAVEZ NAVARRETE ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Mining Activities ◽  
Health Implications

Pollutant source, ecological and human health risks assessment of heavy metals in soils from coal mining areas in Xinjiang, China

2021 ◽  
pp. 111702
Author(s):  
Haiwei Zhang ◽  
Fei Zhang ◽  
Jia Song ◽  
Mou Leong Tan ◽  
Hsiang-te Kung ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Coal Mining ◽  
Health Risks ◽  
Mining Areas ◽  
Human Health Risks ◽  
Health Risks Assessment ◽  
Pollutant Source ◽  
Risks Assessment ◽  
Heavy Metals In Soils

Heavy Metals Concentrations of Surface Dust from e-Waste Recycling and Its Human Health Implications in Southeast China

2008 ◽  
Vol 42 (7) ◽  
pp. 2674-2680 ◽  
Author(s):  
Anna O. W. Leung ◽  
Nurdan S. Duzgoren-Aydin ◽  
K. C. Cheung ◽  
Ming H. Wong
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Waste Recycling ◽  
Southeast China ◽  
Health Implications ◽  
Surface Dust
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