Mercury, arsenic, lead and cadmium in waters of the Singrauli coal mining and power plants industrial zone, Central East India

Bhardwaj, Shefali; Soni, Richa; Gupta, Sharad; Shukla, Dericks Praise

doi:10.1007/s10661-020-8225-2

Cited by 54 publications

(23 citation statements)

References 63 publications

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“…A média e a mediana das concentrações em águas superficiais e subterrâneas foram respectivamente, 0,07263 e 0,02255 mg/L, e 0,03572 e 0,02751 mg/L. Como a maioria das amostras contaminadas estão nas proximidades das usinas termelétricas, área de mineração e lagoas de cinzas, foi constatado a contaminação das águas por atividades antrópicas (Bhardwaj et al, 2020).…”

Section: Mananciais De Abastecimentounclassified

“…A literatura mostra emissões atmosféricas acentuadas de mercúrio oriundas de atividades industriais na região metropolitana de São Paulo (Fostier & Michelazzo, 2006) que podem estar relacionadas à ocorrência de mercúrio nos mananciais dessas regiões. Concentrações de mercúrio total em águas subterrâneas e superficiais na área industrial de Singrauli, Índia, variaram de 0,004 a 0,033 mg/L, sendo que 13 amostras de águas subterrâneas e 11 amostras de águas superficiais apresentaram concentrações de mercúrio acima das recomendadas pela OMS para águas potáveis (0,006 mg/L), dessa forma, os autores concluíram que ambas as atividades industriais e minerárias impactaram de forma significativa o meio ambiente e a hidrosfera da região considerada no estudo (Bhardwaj et al, 2020).…”

Section: Ocorrência De Mercúrio Em Mananciais De Abastecimentounclassified

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Ocorrência de chumbo, cromo e mercúrio em mananciais de abastecimento e em água de consumo humano no Brasil

Gomes¹,

Assunção²,

Castro³

et al. 2021

REGA

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Section: Mananciais De Abastecimentounclassified

Section: Ocorrência De Mercúrio Em Mananciais De Abastecimentounclassified

Ocorrência de chumbo, cromo e mercúrio em mananciais de abastecimento e em água de consumo humano no Brasil

Gomes¹,

Assunção²,

Castro³

et al. 2021

REGA

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“…Several heavy metals Indexing methods have been proposed and used by different scholars in the assessment of pollution status and quality of water in respect to heavy metals concentration in both surface and groundwater globally [6,7,[15][16][17][18][19][20][21][22][23][24][25][26][27]. However, [16] showed that the indexing method can provide a composite picture on the aggregate impact of each heavy metal on the overall water quality.…”

Section: Introductionmentioning

confidence: 99%

Heavy metals pollution indexing, geospatial and statistical approaches of groundwater within Challawa and Sharada industrial areas, Kano City, North-Western Nigeria

et al. 2021

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The present study focused on pollution status of groundwater in the industrial areas of Challawa and Sharada in Kano city based on pollution indices, statistical and spatial analyses. Twenty groundwater samples representing groundwater of the studied areas (Ten from each area) were analyzed for the presence of Cd, Cr, Ni, Fe, Mn and Zn using atomic absorption spectrophotometer. The result showed 95%, 5%, 60%, 15% and 25% of the analyzed water samples had detectable Cd, Cr, Ni, Fe, and Mn above the drinking water limits of both Nigerian standards for drinking water quality NSDWQ and World Health Organization (WHO) with Cd dominating other analyzed heavy metals in the groundwater. Evaluation of heavy metal pollution revealed a low polluted status based on the contaminant index (Cd), synthetic pollution index, heavy metals evaluation index, and heavy metal pollution index. Metal index categorized the groundwater as seriously polluted. The statistical evaluation gave strong and positive correlations between indices and a moderate one between the metallic ions. Component analysis revealed a strongly positive loading of Fe, Ni and Zn while Cd had a strong negative loading. Cr and Mn were positive and moderately loaded. Statistical analyses suggested both anthropogenic and geogenic sources for the heavy metals mainly from the industrial and agricultural practices and rock weathering processes, respectively. This study is expected to be a useful tool in the planning, monitoring and mitigation of pollution activities in the area. Article Highlights The pollution status of groundwater with respect to heavy metals was investigated in the Challawa and Sharada industrials zones in Kano city Nigeria The concentration of Cd, Fe, Ni, Cr Mn and Zn was determined using the AAS Different Pollution indices of HPI, HEI, SPI, Cd and MI were utilized to categorized the area as low, medium and highly polluted. Spatial and temporal distribution maps demarcated based on the metal concentrations and computed indices in the area. CA, PCA, and HCA were used to identified the geochemistry, relationship, sources and origin of heavy metals in groundwater. The study revealed zones with low to high-risk groundwater in terms of toxic heavy metals and pollution status.

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“…These factors significantly impact ecosystems, human health, and overall economic growth, especially for developing countries [5]. Water pollution has been one of India's crucial challenges over the past few decades due to urbanization, industrialization, poor water quality regulations, and disposal of untreated sewage [6][7][8]. The clean-up and rejuvenation of heavily polluted water bodies pose an enormous monetary liability on the country.…”

Section: Introductionmentioning

confidence: 99%

Indicative Lake Water Quality Assessment Using Remote Sensing Images-Effect of COVID-19 Lockdown

Wagh

Sojan

Babu

et al. 2020

Water

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The major lockdown due to the COVID-19 pandemic has affected the socio-economic development of the world. On the other hand, there are also reports of reduced pollution levels. In this study, an indicative analysis is adopted to understand the effect of lockdown on the changes in the water quality parameters for Lake Hussain Sagar using two remote sensing techniques: (i) spectral reflectance (SR) and (ii) chromaticity analysis (Forel-Ule color Index (FUI) and Excitation Purity). The empirical relationships from earlier studies imply that (i) increase in SR values (band B2) indicates a reduction in Chlorophyll-a (Chl-a) and Colored Dissolved Organic Matter (CDOM) concentrations, and (ii) increase in FUI indicates an increase in Total Suspended Solids (TSS). The Landsat 8 OLI satellite images are adopted for comparison between (i) January to May of year 2020: the effect of lockdown on water quality, and (ii) March and April for years 2015 to 2020: historical variations in water quality. The results show notable changes in SR values and FUI due to lockdown compared to before lockdown and after unlock suggesting a significant reduction in lake water pollution. In addition, the historical variations within April suggest that the pollution levels are least in the year 2020.

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Mercury, arsenic, lead and cadmium in waters of the Singrauli coal mining and power plants industrial zone, Central East India

Cited by 54 publications

References 63 publications

Ocorrência de chumbo, cromo e mercúrio em mananciais de abastecimento e em água de consumo humano no Brasil

Ocorrência de chumbo, cromo e mercúrio em mananciais de abastecimento e em água de consumo humano no Brasil

Heavy metals pollution indexing, geospatial and statistical approaches of groundwater within Challawa and Sharada industrial areas, Kano City, North-Western Nigeria

Indicative Lake Water Quality Assessment Using Remote Sensing Images-Effect of COVID-19 Lockdown

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