Exposure routes and health effects of heavy metals on children

BioMetals, Journal Year: 2019, Volume and Issue: 32(4), P. 563 - 573

Published: April 2, 2019

Language: Английский

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A critical prospective analysis of the potential toxicity of trace element regulation limits in soils worldwide: Are they protective concerning health risk assessment? - A review

Environment International, Journal Year: 2019, Volume and Issue: 127, P. 819 - 847

Published: April 30, 2019

Trace elements (TEs) may have toxic effects to plants and humans; thus, countries organizations impose maximum allowable regulation limits of their concentrations in soils. Usually such are placed different categories according soil use, properties or based on both attributes. However, some irrespective differentiation properties. In this review, we aimed at collecting TE soils from major around the globe, critiquing them by assessing potential human health risks case attaining values. We explored soil-to-human pathway differentiated among three exposures TEs, i.e., residential, industrial agricultural. observed existence problems concerning limits, which fact that across do not regulate same even a minimum number TEs. This indicates seem agree TEs pose high risk. Also, these take into account mobility neighbouring environment interphases as plant, especially edible, water matrices. Moreover, for vastly diverse countries; those conflicting information TE-related risks. Subsequently, addressed problem diversity quantifying resultant risks; did calculating risk indices, taking consideration cases highest attained soil. Arsenic were found generate relatively hazard quotient (HQi, accounting intake over oral reference dose TE), indicating its tends be underestimated. Other Cd, Cu, Ni, Pb, Zn typically result low HQi, meaning rather overprotective. Our approach reveals need reducing drafting legislations worldwide validity, since common countries. suggest new directions should strategically tend (a) reduce with underestimated contribution (such As), (b) cautiously increase currently cause minor risks, (c) quantify associated uptake edible potable water, (d) consider multi-element contamination cases, where cumulatively enhanced due synergism.

Language: Английский

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An integrated approach to quantifying ecological and human health risks from different sources of soil heavy metals

The Science of The Total Environment, Journal Year: 2019, Volume and Issue: 701, P. 134466 - 134466

Published: Oct. 4, 2019

Language: Английский

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Advances in Paper-Based Analytical Devices

Annual Review of Analytical Chemistry, Journal Year: 2020, Volume and Issue: 13(1), P. 85 - 109

Published: Jan. 27, 2020

Microfluidic paper-based analytical devices (μPADs) are the newest generation of lab-on-a-chip and have made significant strides in both our understanding fundamental behavior performance characteristics expansion their applications. μPADs become useful techniques for environmental analysis addition to more common application as medical point-of-care devices. Although most method device fabrication is wax printing, numerous other exist helped address factors ranging from solvent compatibility improved function. This review highlights recent reports design, modes detection, broad applications μPADs. Such advances enabled be used field laboratory studies critical needs fast, cheaper measurement technologies.

Language: Английский

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Phytoremediation of Pb and Cd contaminated soils by using sunflower ( Helianthus annuus ) plant

Annals of Agricultural Sciences, Journal Year: 2018, Volume and Issue: 63(1), P. 123 - 127

Published: June 1, 2018

Phytoextraction is an emerging cost effective remediation technology that uses plants to remove metals from contaminated soils. Pot experiments were conducted compare the biomass of Helianthus annuus L. plant grown on Pb and Cd soils, evaluate its efficacy for removal Cd. The obtained results showed as concentration heavy increased in soil, fresh dry weights growing gradually decreased. application 200 mg kg−1 soil reduced shoot root (up 76.6% 64.3%; 88.5% 80.80%, respectively), length 71.6% 94.1%; 83.2% 95.1%, respectively). maximum (40.1 65.7 Dwt) roots (107.7 71.3 kg−1, respectively) recorded cultivated amended with metal concentration. highest bioaccumulation (BAF) was 20 average value 1.67. In addition, translocation factor (TF) by increasing levels soil; however, decreased soil. study concludes H. more favorable uptake compared Pb, we suggest ability

Language: Английский

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Soil and maize contamination by trace elements and associated health risk assessment in the industrial area of Volos, Greece

Environment International, Journal Year: 2019, Volume and Issue: 124, P. 79 - 88

Published: Jan. 11, 2019

Agricultural lands adjacent to industrial activities are vulnerable due the risk of trace elements (TEs) being accumulated into crops and subsequently humans. One such case concerns area Volos, Greece, a suspected contaminated which has never been studied. We measured Ag, Al, As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sb, Se, Sn, Tl, V, Zn in soil maize (leaves grains) assessed health human exposure via ingestion grain consumption. found that most highly enriched soils were Tl (enrichment factor = 19), Se (17.68), Sb (14.81), As (7.89), Ni (6.91), Mo (5.22) Cr (4.33); they all likely derived from anthropogenic particular nearby major steel factory, except for is known be lithogenically elevated area. Synchrotron XANES spectra analysis revealed species associated with ferrihydrite, predominant As(V) (at ca. 85%) As(III) 15%). Although total content studied was high, ammonium bicarbonate-DTPA extractions recovered very low element concentrations, probably fact conditions decelerated solubility (i.e., alkaline, clayey, high Fe oxides content). This confirmed by soil-to-grain transfer index, particularly elements. In 5% sampled grains concerning 40% European food-related regulation limits surpassed. Health assessment showed dramatically (hazard quotient, HQ 2.399), value contributed 74% risk. Similarly, consumption-related risk, contributor (HQ 0.128, contributing risk). Such rarely reported previously, led considerably hazard index (HI) well above threshold HI 1. Cancer below 1 × 10-4 Pb. Our findings indicate this study should pivotal similar industrially-affected agricultural contamination, since less-expected toxic as here may primary contributors

Language: Английский

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Assessment of Heavy Metal Pollution and Human Health Risks Assessment in Soils Around an Industrial Zone in Neyshabur, Iran

Biological Trace Element Research, Journal Year: 2019, Volume and Issue: 195(1), P. 343 - 352

Published: July 17, 2019

Language: Английский

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Quantitative analysis of the factors influencing spatial distribution of soil heavy metals based on geographical detector

The Science of The Total Environment, Journal Year: 2019, Volume and Issue: 664, P. 392 - 413

Published: Jan. 26, 2019

Language: Английский

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A novel magnetic biochar/MgFe-layered double hydroxides composite removing Pb2+ from aqueous solution: Isotherms, kinetics and thermodynamics

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2019, Volume and Issue: 567, P. 278 - 287

Published: Jan. 30, 2019

Language: Английский

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Status of cadmium accumulation in agricultural soils across China (1975–2016): From temporal and spatial variations to risk assessment

Chemosphere, Journal Year: 2019, Volume and Issue: 230, P. 136 - 143

Published: May 10, 2019

Language: Английский

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