Coal mine effluent-led bioaccumulation of heavy metals and histopathological changes in some tissues of the catfish Clarias batrachus

Lakra, Kalpana C; Lal, Bechan; Banerjee, Tanmoyee

doi:10.1007/s10661-019-7229-2

Cited by 12 publications

(4 citation statements)

References 36 publications

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“…Bhuiyan et al ( 16 ) reported that water in proximity to coal mines is contaminated with heavy metals, such as copper, lead, chromium, and cadmium. These pollutants primarily accumulate in the kidneys of fish residing in these contaminated waters ( 4 ). Further research supports these findings, revealing an elevated risk of kidney disease among individuals living in coal mining regions ( 17 ).…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, coal mine dust contains a variety of heavy metals that can contaminate the environment during coal mining and transportation processes ( 3 ). Heavy metals accumulate in multiple organs and tissues of humans and animals ( 4 ). Among them, the kidney is the main target organ for heavy metal accumulation ( 4 ).…”

Section: Introductionmentioning

confidence: 99%

“…Heavy metals accumulate in multiple organs and tissues of humans and animals ( 4 ). Among them, the kidney is the main target organ for heavy metal accumulation ( 4 ). Batool et al ( 5 ) report that coal mine dust can cause inflammation and oxidative damage to miners.…”

Section: Introductionmentioning

confidence: 99%

“…However, coal mine dust exposure leads to pneumoconiosis, posing the primary threat to miners' health (2). Additionally, coal mine dust contains a variety of heavy metals that can contaminate the environment during coal mining and transportation processes (3). Heavy metals accumulate in multiple organs and tissues of humans and animals (4).…”

Section: Introductionmentioning

confidence: 99%

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Coal mining environment causes adverse effects on workers

Chen,

Ding,

Zhang

et al. 2024

Front. Public Health

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BackgroundThe objective of this study is to study the adverse effects of coal mining environment on workers to discover early effective biomarkers.MethodsThe molecular epidemiological study was conducted with 502 in-service workers, who were divided into miner and auxiliary. We measured the individual levels of dust exposure for participants. Clinical examinations were conducted by qualified doctors. Peripheral blood was collected to measure biochemistry, hemogram, and karyocyte apoptosis.ResultsAll workers were healthy who have not found with any diseases that can be diagnosed medically in the physical examination and showed no difference in dust exposure level, age, height, weight, and body mass index between groups. The working years of miners were lower than that of auxiliaries (p < 0.001). Compared with auxiliaries, the concentration and percentage of lymphocytes (p = 0.040, p = 0.012), basophils (p = 0.027, p = 0.034), and red blood cells (p < 0.001) and the concentration of hemoglobin of miners were lower (p < 0.001). The percentage of neutrophils (p = 0.003), the concentration of mean corpuscular hemoglobin concentration (p = 0.002), and the proportion of karyocyte apoptosis in miners were higher (p < 0.001). Miners presented higher blood urea nitrogen (p < 0.001), ratio of blood urea nitrogen to creatinine (p < 0.001), the high density lipoprotein cholesterol (p < 0.001), lower creatinine (p < 0.05), and cholesterol (p < 0.001).ConclusionThe coal mining environment impacted mining workers’ immune function, renal function, and the hematopoietic system, including BUN/CRE, HGB, RBC, and LYMPH, which could be used as early biomarkers to screen the health of coal miners.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Coal mining environment causes adverse effects on workers

Chen,

Ding,

Zhang

et al. 2024

Front. Public Health

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Accumulation of Heavy Metals in Tissues of Oreochromis Mossambicus from the uMgeni River and Human Health Risk Assessment

Lebepe,

Selala,

Takai

et al. 2024

Water Air Soil Pollut

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Metal enrichment in aquatic ecosystems has compromised the potential of fish to enhance food security. The uMgeni River drains urban and industrialized catchment and flows through economically disadvantaged rural communities that opt for fish to supplement their protein needs. However, there are uncertainties on the safety of consuming fish from the uMgeni River. The present study aims to explore metal distribution between the water, sediment, and tissues of the preferred Oreochromis mossambicus, and evaluate whether concentrations in the muscle are safe for human consumption. The water, sediment, and fish samples were collected from Inanda and Nagle dams, and metal concentrations were analysed using inductively coupled plasma mass spectrometry. Alkaline pH was observed at both dams and metals were below detectable level in the water column. Even though metal concentrations in the water column were below detectable levels, significant concentrations were found in the sediment. No consistent trend in metal concentrations was observed across tissues, but higher levels were generally found in the liver, followed by the gill, and then the muscle. Nickel (Ni) and lead (Pb) exhibited concentrations exceeding the permissible limit for human consumption. Similarly, the target hazard quotient exceeded the threshold of 1 for Pb, chromium (Cr), and antimony (Sb) at both dams with Inanda Dam showing higher indices for Sb and Pb. The carcinogenic risk for the three metals was also found to be higher than 10–6. These findings suggest that consumption of O. mossambicus from the uMgeni River should be limited to no more than 150 g per week.

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