Patterns of toxic metals bioaccumulation in a cross-border freshwater reservoir

Strungaru, Ștefan-Adrian; Nicoară, Mircea; Teodosiu, Carmen; Baltag, Emanuel Ştefan; Ciobanu, Cristian; Plăvan, Gabriel

doi:10.1016/j.chemosphere.2018.05.079

Cited by 30 publications

(15 citation statements)

References 38 publications

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“…Trace metals (TMs) constitute one group of known hazardous substances; in some cases, these elements are naturally present in soils [ 1 ], as they originate from the erosion of rocks or volcanic activity. Additionally, anthropogenic activities like mineral processing; chemical, metallurgic, petrochemical, and textile industries; and fuel combustion, among others [ 2 ], have increased TM concentrations. In both cases, these contaminants are readily available for intake by plants because they are present mostly in the soil surface, along with plant nutrients [ 1 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Determination of cadmium and lead in tomato (Solanum lycopersicum) and lettuce (Lactuca sativa) consumed in Quito, Ecuador

et al. 2020

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Graphical abstract In most of the samples, each individual metal content does not overpass the FAO/WHO threshold limits, nevertheless 25 % of the tomato samples were near or exceeded the Pb threshold value. The total metals content suggests that there is an important contamination in tomatoes and lettuces commercialized in the markets from Central and South zones of the DMQ. In addition, the organic products analyzed have an alarming metal content that should be considered.

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Section: Introductionmentioning

confidence: 99%

Determination of cadmium and lead in tomato (Solanum lycopersicum) and lettuce (Lactuca sativa) consumed in Quito, Ecuador

et al. 2020

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“…However, the diversity of the species studied, differences in the expression of the results (dry weight or wet weight), or different target analytes led to a difficult comparative analysis of the results. Nevertheless, the studies showed correlations between the heavy metals concentrations in water, sediments and the biota, especially for As, Cd, Pb, Cu, Ni, Cr, Hg, Co, and Zn, with various bio-concentration factors (BCF) depending on the biota species [109,123,125,128,129].…”

Section: Metalsmentioning

confidence: 99%

Emerging and Persistent Pollutants in the Aquatic Ecosystems of the Lower Danube Basin and North West Black Sea Region—A Review

et al. 2021

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The tremendous impact of natural and anthropogenic organic and inorganic substances continuously released into the environment requires a better understanding of the chemical status of aquatic ecosystems. Water contamination monitoring studies were performed for different classes of substances in different regions of the world. Reliable analytical methods and exposure assessment are the basis of a better management of water resources. Our research comprised publications from 2010 regarding the Lower Danube and North West Black Sea region, considering regulated and unregulated persistent and emerging pollutants. The frequently reported ones were: pharmaceuticals (carbamazepine, diclofenac, sulfamethoxazole, and trimethoprim), pesticides (atrazine, carbendazim, and metolachlor), endocrine disruptors—bisphenol A and estrone, polycyclic aromatic hydrocarbons, organochlorinated pesticides, and heavy metals (Cd, Zn, Pb, Hg, Cu, Cr). Seasonal variations were reported for both organic and inorganic contaminants. Microbial pollution was also a subject of the present review.

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“…Water resources could be vulnerable to potentially toxic elements (PTEs) contamination in the environment (Ciazela et al 2018). In fresh water ecosystems, PTEs have become one of the most toxic chemicals due to their persistence in nature (Strungaru et al 2018). PTEs are released to environment by anthropogenic activities including mining, smelting, metallurgical and industrial beneficiation processes, excavation, and transportation lead to further contaminate the surrounding environment (Santana et al 2020;Nawab et al 2017Nawab et al , 2019Vinod et al 2019;Oyebamiji et al 2018;Li et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Contamination Level, Source Identification And Health Risk Assessment of Potentially Toxic Elements In Drinking Water Sources of Mining And Non-Mining Areas of Khyber Pakhtunkhwa, Pakistan

Bhatti

Ishtiaq

Khan

et al. 2021

Preprint

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Accelerated mining activities have increased water contamination with potentially toxic elements (PTEs) and their associated human health risk in developing countries. The current study investigated the distribution of PTEs, their potential sources and health risk assessment in both ground and surface water sources in mining and non–mining areas of Khyber Pakhtunkhwa, Pakistan. Water samples (n=150) were taken from selected sites and were analyzed for six PTEs (Ni, Cr, Zn, Cu, Pb and Mn). Among PTEs, Cr showed high mean concentration (497) μg L–1, followed by Zn (414) μg L–1 in mining area, while Zn showed lowest mean value (4.44) μg L–1 in non-mining areas. Elevated concentrations of Ni, Cr and moderate level of Pb in ground and surface water of Mohmand District exceeded the permissible limits set by WHO (2017). Multivariate statistical analyses showed that pollution sources of PTEs were mainly from mafic-ultramafic rocks, acid mine drainage, open dumping of mine-wastes and mine tailings. The hazard quotient (HQ) was highest for children relatively to adults, but not higher than the US-EPA limits. The hazard index (HI) for ingestions of all selected PTEs were lower than the threshold value (HIing <1), except Mohmand District which showed (HI >1) in mining areas through ingestion. Moreover, the carcinogenic risk (CR) values exceeded the threshold limits for Ni and Cr set by the US-EPA (1.0E−04 to 1.0E−06). In order to protect the drinking water sources of the study areas from more contamination, the management techniques and policy for mining operations need to be implemented.

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Patterns of toxic metals bioaccumulation in a cross-border freshwater reservoir

Cited by 30 publications

References 38 publications

Determination of cadmium and lead in tomato (Solanum lycopersicum) and lettuce (Lactuca sativa) consumed in Quito, Ecuador

Determination of cadmium and lead in tomato (Solanum lycopersicum) and lettuce (Lactuca sativa) consumed in Quito, Ecuador

Emerging and Persistent Pollutants in the Aquatic Ecosystems of the Lower Danube Basin and North West Black Sea Region—A Review

Contamination Level, Source Identification And Health Risk Assessment of Potentially Toxic Elements In Drinking Water Sources of Mining And Non-Mining Areas of Khyber Pakhtunkhwa, Pakistan

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