Heavy metals in food crops: Health risks, fate, mechanisms, and management

Kumar, Prabhat; Lee, Sang Soo; Zhang, Ming; Tsang, Yiu Fai; Kim, Ki‐Hyun

doi:10.1016/j.envint.2019.01.067

Cited by 1,425 publications

(602 citation statements)

References 267 publications

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“…Apart from the general use of soil-to-plant transfer indices and knowing that PHE translocation from roots to seeds in the plant is generally very limited [78], in this research the transfer factor values were calculated to assess if the PHE amounts taken up by cereals did not cause their accumulation in consumed seeds. The calculated BA were <1, indicating that total PHE contents in investigated soils [29] (Table S1) were not taken up by cereal seeds in elevated amounts [24].…”

Section: Discussionmentioning

confidence: 99%

Human Health Risk Assessment and Potentially Harmful Element Contents in the Cereals Cultivated on Agricultural Soils

Gruszecka‐Kosowska

2020

IJERPH

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Potentially harmful element (PHE) contents were investigated in six species of cereals in southern Poland, with human health risk implications assessed afterwards. The PHE contents belonged to the following ranges (mg/kg wet weight): As below the limit of detection (<LOD)–0.013, Cd <LOD–0.291, Co <LOD–0.012, Cu 0.002–11.0, Hg <LOD–0.080, Ni <LOD–8.40, Pb <LOD–12.0, Sb <LOD–0.430, Tl <LOD–0.160, and Zn 5.47–67.7. The Pb and Cd contents exceeded the maximum allowable concentration (MAC) values for wheat, oat, rye, and barley in the Śląskie region. The bioaccumulation coefficient (BA) for the total PHE content in the soil indicated that cereals had no potential of PHE accumulation. Regarding the statistical daily consumption of cereals, the PHE intake rates, expressed as a percentage of permissible maximum total daily intake (% PMTDI), were the following: As 0.0003, Cd 0.193, Co 0.0003, Cu 0.075, Hg 0.424, Ni 3.94, Pb 3.16, Sb 0.23, Tl 0.27, and Zn 0.44. The total non-carcinogenic risk values (HQ) exceeded the target risk value of 1 for wheat (HQ = 13.3) and rye (HQ = 3.44). For other cereals, the total non-carcinogenic risk values decreased in the following order: barley (HQ = 0.47) > oat (HQ = 0.38) > maize (HQ = 0.02). The total non-carcinogenic risk value of the statistical daily consumption of cereals was acceptable low (HQ = 0.58). The acceptable cancer risk (CR) level of 1.0 × 10−5 investigated only for As was not exceeded under any of the intake scenarios. Concerning the mean As content in cereals consumed daily in statistical amounts the CR value was equal to 5.1 × 10−8. The health risk value according to the Pb content in cereals using the margin of exposure (MOE) approach was equal to 1.27, indicating an acceptable low risk.

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Section: Discussionmentioning

confidence: 99%

Human Health Risk Assessment and Potentially Harmful Element Contents in the Cereals Cultivated on Agricultural Soils

Gruszecka‐Kosowska

2020

IJERPH

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“…Tendo em conta que cerca de 98% da quantidade média de calorias ingeridas per capita mundialmente é proveniente de cultivo diretamente no solo ou dependem indiretamente do solo 8 esta é possivelmente uma das vias mais silenciosas de exposição recorrente. Os metais pesados apesar de serem elementos que se encontram naturalmente presentes no solo, podem ser incorporados através de diversas atividades antropogénicas tais como a agricultura, fundição, exploração mineira, incineração de resíduos e mais recentemente deposição de lixo eletrónico e informático 8,9 . Estes elementos quando ingeridos e absorvidos continuamente ou em concentrações tóxicas podem induzir problemas gastrointestinais (As, Hg), cardiovasculares (As, Hg), hepáticos (As, Cd, Pb, Hg), neurológicos (As, Pb, Hg), ósseos (As, Cd, Pb) e de pele (As) umas vez que não são excretados, sendo acumulados nos tecidos e órgãos 8,9 .…”

Section: Arunclassified

Poluição, um veneno silencioso para a saúde humana

Ribeiro

2019

Rev. Ciência Elem.

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A Poluição é indiscutivelmente um dos maiores perigos e desafios que o mundo enfrenta presentemente. A influência antropogénica, frequentemente desregulada, nas diferentes esferas do ambiente tais como o ar, solo ou água acarreta problemas graves para a saúde pública. A Organização Mundial de Saúde (OMS) estima que fatores ambientais estão na origem de 23% das mortes globais (12-18% na Europa).Torna-se assim necessário a conscientização da sociedade face à extensão deste problema e a adoção de uma atitude proativa, com alteração de hábitos e comportamentos, assim como implementação de regulamentação e políticas sustentáveis promotoras de um ambiente limpo e saudável que proporcione saúde e bem-estar.O termo Poluição refere-se à contaminação do ambiente com qualquer matéria (poluente) que provoque desequilíbrios ou prejuízos ao equilíbrio ecológico da Terra ou afete a qualidade de vida dos seus habitantes. O incremento dos níveis de urbanização e industrialização decorrentes do desenvolvimento económico estimulam o consumo de recursos e produção de resíduos, que se não forem efetuados de forma sustentável, podem causar efeitos diretos a curto-prazo na saúde pública ou até mesmo causar danos complementares detetáveis apenas a médio ou longo-prazo.Ao longo dos últimos anos, os resultados adversos da poluição ambiental na saúde humana e a magnitude dos seus impactos têm sido evidenciados em vários estudos de coorte.A poluição do ar, do solo e da água estão entre as principais questões ambientais que causam maior preocupação, estando a maior parte da população quotidianamente exposta a pelo menos uma destas formas de poluição. ArA poluição do ar é considerada um dos maiores riscos ambientais para a saúde humana, particularmente nas áreas urbanas 1 , contribuindo para o aumento de doenças e infeções respiratórias (asma, doença pulmonar obstrutiva crónica, pneumonia), doenças cardiovas-CITAÇÃO Ribeiro, H.(2019) Poluição, um veneno silencioso para a saúde humana, Rev. Ciência Elem., V7(04):069. Este artigo é de acesso livre, distribuído sob licença Creative Commons com a designação CC-BY-NC-SA 4.0, que permite a utilização e a partilha para fins não comerciais, desde que citado o autor e a fonte original do artigo.rce.casadasciencias.org

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“…Heavy metals and the global rise in methane level both are serious threats to the environment and humans directly or indirectly [1,2]. According to the National Oceanic and Atmospheric Administration (NOAA) of USA, global methane emission has increased up to 1858 ppb till 2019, compared to pre-industrial times (722 ppb), and its impact on the environment has been 34 times greater than CO 2 over a period of 100 years, as stated by the Environmental Protection Agency (EPA).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Adsorptive Bioremediation of Heavy Metals (Cd2+, Cr6+, Pb2+) by Methane-Oxidizing Epipelon

et al. 2020

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Cadmium (Cd), chromium (Cr) and lead (Pb) are heavy metals that have been classified as priority pollutants in aqueous environment while methane-oxidizing bacteria as a biofilter arguably consume up to 90% of the produced methane in the same aqueous environment before it escapes into the atmosphere. However, the underlying kinetics and active methane oxidizers are poorly understood for the hotspot of epipelon that provides a unique micro-ecosystem containing diversified guild of microorganisms including methane oxidizers for potential bioremediation of heavy metals. In the present study, the Pb2+, Cd2+and Cr6+ bioremediation potential of epipelon biofilm was assessed under both high (120,000 ppm) and near-atmospheric (6 ppm) methane concentrations. Epipelon biofilm demonstrated a high methane oxidation activity following microcosm incubation amended with a high concentration of methane, accompanied by the complete removal of 50 mg L−1 Pb2+ and 50 mg L−1 Cd2+ (14 days) and partial (20%) removal of 50 mg L−1 Cr6+ after 20 days. High methane dose stimulated a faster (144 h earlier) heavy metal removal rate compared to near-atmospheric methane concentrations. DNA-based stable isotope probing (DNA-SIP) following 13CH4 microcosm incubation revealed the growth and activity of different phylotypes of methanotrophs during the methane oxidation and heavy metal removal process. High throughput sequencing of 13C-labelled particulate methane monooxygenase gene pmoA and 16S rRNA genes revealed that the prevalent active methane oxidizers were type I affiliated methanotrophs, i.e., Methylobacter. Type II methanotrophs including Methylosinus and Methylocystis were also labeled only under high methane concentrations. These results suggest that epipelon biofilm can serve as an important micro-environment to alleviate both methane emission and the heavy metal contamination in aqueous ecosystems with constant high methane fluxes.

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Heavy metals in food crops: Health risks, fate, mechanisms, and management

Cited by 1,425 publications

References 267 publications

Human Health Risk Assessment and Potentially Harmful Element Contents in the Cereals Cultivated on Agricultural Soils

Human Health Risk Assessment and Potentially Harmful Element Contents in the Cereals Cultivated on Agricultural Soils

Poluição, um veneno silencioso para a saúde humana

Enhanced Adsorptive Bioremediation of Heavy Metals (Cd2+, Cr6+, Pb2+) by Methane-Oxidizing Epipelon

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