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Chen H, Ding X, Zhang W, Dong X. Coal mining environment causes adverse effects on workers. Front Public Health 2024; 12:1368557. [PMID: 38741904 PMCID: PMC11090038 DOI: 10.3389/fpubh.2024.1368557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/11/2024] [Indexed: 05/16/2024] Open
Abstract
Background The objective of this study is to study the adverse effects of coal mining environment on workers to discover early effective biomarkers. Methods The 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. Results All 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). Conclusion The 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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Affiliation(s)
- Huihui Chen
- Wannan Medical College, Wuhu, Anhui, China
- Guang’anmen Hospital China Academy of Chinese Medical Sciences, Beijing, China
| | - Xinping Ding
- Huaibei Occupational Disease Prevention and Control Institute, Huaibei, Anhui, China
| | | | - Xichen Dong
- Guang’anmen Hospital China Academy of Chinese Medical Sciences, Beijing, China
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El-Mansi AA, Rady AM, Ibrahim EH, ElBealy E. Cellular patterning and cyto-architectural organization of the skin of electric catfish (Malapterurus electricus, Siluriformes) with a particular emphasis on its ampullary electroreceptor. ZOOLOGY 2024; 163:126159. [PMID: 38471427 DOI: 10.1016/j.zool.2024.126159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 02/04/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024]
Abstract
The functional morphology of the skin of Malapteruridae is presumably evolved to cope with a diversified range of ambient physiological, environmental, and behavioral conditions. Herein, we firstly characterized the microstructures and intriguing patterning of the skin of twelve adult electric catfish (Malapterurus electricus, Malapteruridae) using histological, histochemical, immunofluorescent, and ELISA standard methodology. The skin comprises three sequentially-oriented layers: the epidermis, dermis, and hypodermis with a significantly increased thickness of the former. The epidermis contains four types of cells: the surface epithelial cells, mucous cells, granular cells, and club cells. We defined distinctive ampullary electroreceptors in the outer epidermis that possess flask-shaped sensory crypt containing electroreceptor cells together with vertical collagen rods. Dermis and hypodermis are composed of connective tissue; however, the former is much more coarse and dense with comparable reactivity for Masson-Goldner trichrome (MT). Placing our data in the context of the limited body of previous work, we showed subtle changes in the expression of mucin subunits together with cytoskeletal fractions of collagens, myosin, F-actin, keratins, and tubulins. Taken as a whole, our results convincingly showed that the skin of M. electricus shares some structural similarities to other Siluriformes, however, it has some functional modifications that are implicated in protection, defense, and foraging behavior.
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Affiliation(s)
- Ahmed A El-Mansi
- Biology Dept., Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia.
| | - Ahmed M Rady
- Biology Dept., Faculty of Science, King Saud University, Riyadh, Saudi Arabia
| | - Esam H Ibrahim
- Biology Dept., Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia
| | - Eman ElBealy
- Biology Dept., Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia
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Li B, Zhang Q, Chang X, Shen Y, Liu T, Liang X, Gao Q, Liu L, Qiu Y, Yan X, Huang J, Wang T, Yin J. Association of urinary metal levels with metabolic syndrome in coal workers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:62892-62904. [PMID: 36952162 DOI: 10.1007/s11356-023-26452-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 03/10/2023] [Indexed: 05/10/2023]
Abstract
Studies have indicated that metal exposure is associated with an increased risk of metabolic syndrome (MetS). However, it is unclear whether overexposure to heavy metals occurs in miners and is associated with MetS risk remains unclear. In a cross-sectional study, analysis for metal exposure levels of 3428 participants from three types of workplaces was conducted. Relationships between metals in urine and MetS were characterized using a multivariate binary logistic regression model and restricted cubic spline analysis. The association between urinary metals and workplaces with respect to MetS was studied via mediation analysis and multiplicative interaction analysis. And a sensitivity analysis was performed to assess the robustness of the association between MetS and urinary metals in participants without obesity (n = 2811). Zn, Cu, Fe, Co, and Ni were found to be associated with MetS in the single-metal models, whereas only Zn and Cu showed considerable associations in the multimetal model. The odds ratios (95% CI) for MetS in the highest quartiles were 2.089 (1.611, 2.707) for urinary Zn and 1.394 (1.084, 1.794) for urinary Cu (both false discovery rate for both was < 0.05). Urinary Zn and Cu were positively associated with hypertriglyceridemia. In addition, higher Zn exposure was confirmed in underground workers than ground workers and office workers, and there was a significant association between urinary metal exposure and workplace, which together influenced the occurrence of MetS. These results provided scientific evidence for the relationship between Zn, Cu, workplaces, and MetS in coal workers and indicated that it is critical to reduce occupational metal exposure, especially in underground workers.
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Affiliation(s)
- Ben Li
- School of Public Health, Shanxi Medical University, Taiyuan, China
- Shanxi Health Commission Key Laboratory of Nervous System Disease Prevention and Treatment, Sinopharm Tongmei General Hospital, 1 Wei 7 Street, Datong, Shanxi, China
- Shanxi Coal Mine Public Health Graduate Education Innovation Center, Datong, Shanxi, China
| | - Qianwen Zhang
- School of Public Health, Shanxi Medical University, Taiyuan, China
- Shanxi Coal Mine Public Health Graduate Education Innovation Center, Datong, Shanxi, China
| | - Xiaohan Chang
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Yongmei Shen
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Ting Liu
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Xiaomin Liang
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Qian Gao
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Liangpo Liu
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Yulan Qiu
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Xiaoyan Yan
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Jianjun Huang
- Shanxi Health Commission Key Laboratory of Nervous System Disease Prevention and Treatment, Sinopharm Tongmei General Hospital, 1 Wei 7 Street, Datong, Shanxi, China
- Shanxi Coal Mine Public Health Graduate Education Innovation Center, Datong, Shanxi, China
- Department of Neurosurgery, Sinopharm Tongmei General Hospital, No. 1, Wei Qi Road, Datong Mining Area, Datong, 037003, Shanxi, China
| | - Tong Wang
- School of Public Health, Shanxi Medical University, Taiyuan, China
- Shanxi Health Commission Key Laboratory of Nervous System Disease Prevention and Treatment, Sinopharm Tongmei General Hospital, 1 Wei 7 Street, Datong, Shanxi, China
- Shanxi Coal Mine Public Health Graduate Education Innovation Center, Datong, Shanxi, China
| | - Jinzhu Yin
- Shanxi Health Commission Key Laboratory of Nervous System Disease Prevention and Treatment, Sinopharm Tongmei General Hospital, 1 Wei 7 Street, Datong, Shanxi, China.
- Shanxi Coal Mine Public Health Graduate Education Innovation Center, Datong, Shanxi, China.
- Department of Neurosurgery, Sinopharm Tongmei General Hospital, No. 1, Wei Qi Road, Datong Mining Area, Datong, 037003, Shanxi, China.
- Central Laboratory of Sinopharm Tongmei General Hospital, Datong, 037003, Shanxi, China.
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Yu X, Wang X, Fan T, Dong P, Chen X. Assessment of Heavy Metals in Water and Crucian Carp ( Carassius auratus gibelio) from Subsidence Pools in the Huaibei Coal Mining Region, China, with Evaluation of the Human Health Risk. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2159971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xiaokun Yu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
| | - Xingming Wang
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, Anhui Normal University, Wuhu, China
- State Key Laboratory of Safety and Health for Metal Mines, Sinosteel Maanshan General Institute of Mining Research Company Limited, Maanshan, China
- Chuzhou Bureau of Ecology and Environment, Chuzhou, China
| | - Tingyu Fan
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
| | - Peng Dong
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China
| | - Xiaoyang Chen
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
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Lakra KC, Mistri A, Banerjee TK, Lal B. Analyses of the health status, risk assessment and recovery response of the nutritionally important catfish Clarias batrachus reared in coal mine effluent-fed pond water: a biochemical, haematological and histopathological investigation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:47462-47487. [PMID: 35182337 DOI: 10.1007/s11356-022-18971-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
The present field study evaluates the health status of the catfish Clarias batrachus reared in coal mine effluent (CME)-fed pond water at Rajrappa mining complex using biochemical, haematological and histopathological parameters. Simultaneously, risk assessment along with recovery response of the CME intoxicated fish following their treatment with CME-free freshwater was also studied. The CME-fed pond water fish revealed significant decrease in biomolecules concentrations and considerable increase in activities of several enzymes along with metallothionein level as compared to control. The impaired regulation of metabolic function was also revealed by blood parameters showing significant decrease in haemoglobin content (8.78 ± 0.344 g/100 mL) and red blood cells count (1.77 ± 0.12 × 106 mm3) while substantial elevation in white blood cells (187.13 ± 9.78 × 103 mm3). The histopathological study also confirmed the changes including hypertrophy of club cells of skin, swelling of secondary lamella of gills, extensive fibrosis in liver and glomerular shrinkage with increased Bowman's space in kidney. Potential health risk assessments based on estimated daily intake and target hazard quotient indicated health risks associated with the consumption of such fishes. The CME-contaminated fish when transferred to CME-free freshwater exhibited decreased metal content accompanied by eventual recovery response as evident by retrieval in biochemical and haematological parameters. Withdrawal study also revealed restoration in the activity of different marker enzymes in fish tissues including blood as well as recovery in their cellular architecture. The results of the present study validate the depuration process as an effective practice for detoxification of fish contaminated with effluent.
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Affiliation(s)
- Kalpana Chhaya Lakra
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Arup Mistri
- Department of Zoology, The University of Burdwan, Burdwan, 713104, West Bengal, India
| | - Tarun Kumar Banerjee
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Bechan Lal
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India.
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Rabadjieva D, Tepavitcharova S, Kovacheva A, Gergulova R, Ilieva R, Vladov I, Nanev V, Gabrashanska M, Karavoltsos S. Trace metals accumulation in the eco-system water - soil - vegetation (Agropyron cristatum) - common voles (Microtus arvalis) - parasites (Hymenolepis diminuta) in Radnevo region, Bulgaria. J Trace Elem Med Biol 2021; 66:126750. [PMID: 33798814 DOI: 10.1016/j.jtemb.2021.126750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/28/2021] [Accepted: 03/19/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Coal and coal processing industries provoke trace metal pollution, which has a negative effect on the water - soil - vegetation - small mammals eco-system, constituting part of the food chain and exerting a serious impact on human health. OBJECTIVES Assessment of the environmental impact of Maritza iztok coal complex, situated east of Radnevo town, Bulgaria, by tracking the dynamics and accumulation of trace metals in the eco-system water - soil - vegetation - common voles - parasites. METHODS Samples from surface waters, their nearby uncultivated soils, meadow uncultivated vegetation (Agropyron cristatum) and field common voles (Microtus arvalis) were collected. In situ measurements and laboratory extraction procedures and analyses were performed. Accumulation and mobility indices were calculated. The distribution of dissolved Mn, Ni, Cu, Zn and Pb chemical species in water-soil extracts was calculated using a thermodynamic approach. Two thermodynamic models were applied - the classical ion-association model for calculating the inorganic trace metal species and the Stockholm Humic Model (SHM) accounting for the complexation reactions of trace metals with organic matter. Visual Minteq computer program, Version 3.1 was used. The relationship chemical species - bioaccumulation was discussed. RESULTS Pb and Mn, together with SO42- and PO43- were found to be the main pollutants of waters in the region. The soils studied exhibited low concentrations of trace metals, not exceeding the specified MACs. The content of Mn was the highest, followed by Zn, Pb, Cu and Ni. The highest phytoaccumulation coefficients in the studied uncultivated grass vegetation were calculated for Cu and Zn, being 1-2 orders of magnitude higher than those of Mn and Ni. The accumulation of trace metals was explained on the basis of ions mobility and chemical species distribution. In the case of the host-parasite system Microtus alvaris - Hymenolepis diminuta, Zn displays the highest accumulation coefficient, followed by those of Cu and Pb. The parasite showed a higher bioaccumulation compared to infected common voles, with the highest bioaccumulation found for Ni. CONCLUSIONS The bioaccumulation of trace metals depends on their mobility, concentration and chemical forms in water-soil solutions. Metal-organic species stimulate the phytoaccumulation of trace metals while inorganic ones suppress it. The sequence of trace metals bioaccumulation in common voles is analogous to that of soil contamination. The parasite exhibited higher bioaccumulation levels compared to infected common voles.
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Affiliation(s)
- Diana Rabadjieva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 11, 1113, Sofia, Bulgaria.
| | - Stefka Tepavitcharova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 11, 1113, Sofia, Bulgaria
| | - Antonina Kovacheva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 11, 1113, Sofia, Bulgaria
| | - Rumiana Gergulova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 11, 1113, Sofia, Bulgaria
| | - Radost Ilieva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 11, 1113, Sofia, Bulgaria
| | - Ivelin Vladov
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113, Sofia, Bulgaria
| | - Veselin Nanev
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113, Sofia, Bulgaria
| | - Margarita Gabrashanska
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113, Sofia, Bulgaria
| | - Sotirios Karavoltsos
- National and Kapodistrian University of Athens, Department of Chemistry, Laboratory of Environmental Chemistry, Panepistimiopolis, 15784, Athens, Greece
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Lakra KC, Banerjee TK, Lal B. Coal mine effluent-induced metal bioaccumulation, biochemical, oxidative stress, metallothionein, and histopathological alterations in vital tissues of the catfish, Clarias batrachus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:25300-25315. [PMID: 33453032 DOI: 10.1007/s11356-021-12381-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
In the present study, a multi-biomarker approach was used to assess the toxicity of the coal mine effluent (CME) generated at the Rajrappa coal mine on the catfish Clarias batrachus. A core of biomarkers indicative of nutritional value, oxidative stress, and histopathology was selected to illustrate the toxic effects of CME-containing different heavy metals and other toxicants. The results of metal bioaccumulation in CME-exposed fish tissues revealed the highest metal concentration in liver (1.34-297.68 mg/kg) while lowest in muscles (1.47-23.26 mg/kg) as compared to other tissues and so was the metallothionein level. The high value of bioaccumulation observed in liver, kidney, and gills reflects their affinity for metals. In addition, the values of metal pollution index (MPI) of different fish tissues further affirmed that liver followed by kidney and gills are at greater risk than brain, skin, and muscles. Significant alterations in the activity of certain enzymes (aspartate amino transferase, alanine amino transferase, alkaline phosphatase) as well as oxidative stress markers (superoxide dismutase, catalase and lipid peroxidation) were detected in the tissues of CME-exposed fish. The tissue-specific metal accumulation and increased metallothionein levels may be associated with the biochemical and physiological activity of an organ and its constitutive antioxidant defenses. The histopathological changes in the various tissues of the CME-exposed fish justify the high metal accumulation and biochemical alterations. Overall results indicate that the Rajrappa coal mine effluent is very toxic having adverse health impact on the fish and might also affect the human health when consumed.
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Affiliation(s)
- Kalpana Chhaya Lakra
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221 005, India
| | - Tarun Kumar Banerjee
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221 005, India
| | - Bechan Lal
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221 005, India.
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Lakra KC, Lal B, Banerjee TK. Application of phytoremediation technology in decontamination of a fish culture pond fed with coal mine effluent using three aquatic macrophytes. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:840-848. [PMID: 30834773 DOI: 10.1080/15226514.2019.1568384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the present study, three aquatic macrophytes, Eichhornia crassipes, Salvinia molesta, and Pistia stratiotes were used to assess their relative efficacies in decontamination of a fish culture pond, regularly fed with coal mine effluent (CME). The level of metals like Fe, Mn, Ni, Zn, Cu, Pb, Cr, and Cd were much higher in CME-fed pond water than their recommended limits in drinking water set by the Bureau of Indian standards and in effluents by the Environmental Protection Agency. The levels of metal were lowered substantially in CME-fed pond water after exposure of the above plants to such water, however, metal levels in the plants increased tremendously. The increased metal levels in plants severely damaged their physiological and biochemical processes. The contents of chlorophyll a, b and carotenoid were reduced by 63.2, 64.2, and 46.3%, respectively, in E. crassipes, 41, 57.4, and 57.8% in S. molesta, and 42, 62, and 61% in P. stratiotes. The accumulating metals also generated oxidative stress in plants, as evident from the increased superoxide dismutase and catalase activities and enhanced malondialdehyde content. The E. crassipes was the most potent in absorbing the metals from the CME-fed pond water, followed by S. molesta and P. stratiotes.
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Affiliation(s)
- Kalpana C Lakra
- a Centre of Advanced Study, Department of Zoology, Institute of Science , Banaras Hindu University , Varanasi , Uttar Pradesh , India
| | - Bechan Lal
- a Centre of Advanced Study, Department of Zoology, Institute of Science , Banaras Hindu University , Varanasi , Uttar Pradesh , India
| | - Tarun Kumar Banerjee
- a Centre of Advanced Study, Department of Zoology, Institute of Science , Banaras Hindu University , Varanasi , Uttar Pradesh , India
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