Soil and indoor dust as environmental media of human exposure to As, Cd, Cu, and Pb near a copper smelter in central Chile

Berasaluce, Maite; Mondaca, Pedro; Schuhmacher, Marta; Bravo, Manuel; Sauvé, Sébastien; Navarro-Villarroel, Claudia; Dovletyarova, Elvira A.; Neaman, Alexander

doi:10.1016/j.jtemb.2019.04.006

Cited by 35 publications

(14 citation statements)

References 27 publications

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“…Positive correlations have been documented between concentration in toenails, urine, and blood in the case of Mn [75] which, in the present study, has been found in higher concentration in exposed children than in controls. Of note, positive correlations have been demonstrated between the concentrations of metals in toenails and in environmental matrices such as dust [61,71,76,77], soil [61,63,77,78], and water [63,79], confirming the adequacy of toenail as a biomarker of environmental exposure.…”

Section: Discussionmentioning

confidence: 78%

Biomonitoring of Metals in Children Living in an Urban Area and Close to Waste Incinerators

Ciaula

Gentilini²,

Diella

et al. 2020

IJERPH

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The impact of waste incinerators is usually examined by measuring environmental pollutants. Biomonitoring has been limited, until now, to few metals and to adults. We explored accumulation of a comprehensive panel of metals in children free-living in an urban area hosting two waste incinerators. Children were divided by georeferentiation in exposed and control groups, and toenail concentrations of 23 metals were thereafter assessed. The percentage of children having toenail metal concentrations above the limit of detection was higher in exposed children than in controls for Al, Ba, Mn, Cu, and V. Exposed children had higher absolute concentrations of Ba, Mn, Cu, and V, as compared with those living in the reference area. The Tobit regression identified living in the exposed area as a significant predictor of Ba, Ni, Cu, Mn, and V concentrations, after adjusting for covariates. The concentrations of Ba, Mn, Ni, and Cu correlated with each other, suggesting a possible common source of emission. Exposure to emissions derived from waste incinerators in an urban setting can lead to body accumulation of specific metals in children. Toenail metal concentration should be considered a noninvasive and adequate biomonitoring tool and an early warning indicator which should integrate the environmental monitoring of pollutants.

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Section: Discussionmentioning

confidence: 78%

Biomonitoring of Metals in Children Living in an Urban Area and Close to Waste Incinerators

Ciaula

Gentilini²,

Diella

et al. 2020

IJERPH

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“…Many HMs (e.g., Pb, Cu, Zn, and Ni) are mostly mobile in an acidic environment, whereas the highest accumulation is associated with the neutral soil reaction (Kabata‐Pendias, 2011; Sauvé, Dumestre, Mcbride, & Hendershot, 1998). Meanwhile, mobility and toxicity of As are mostly pronounced in alkaline soils (Berasaluce et al., 2019; Kader, Lamb, Megharaj, & Naidu, 2016). The potential of SOC to bind metals can also differ for individual HMs and depends on pH, redox potential, and many other factors.…”

Section: Discussionmentioning

confidence: 99%

Assessing and mapping urban soils as geochemical barriers for contamination by heavy metal(loid)s in Moscow megapolis

et al. 2020

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Urbanization is responsible for some negative environmental consequences, including soil contamination by heavy metal(loid)s (HMs). At the same time, urban soils can buffer HMs and perform as geochemical barriers. For the case of Moscow city, the soil contamination by multiple HMs as well as soil buffer capacity was analyzed, mapped, and considered to assess urban soils as geochemical barriers. Comparison with the health standards indicated contamination by different HMs in 30–60% of the observations, and Zn and Cd were the most widely spread contaminants. “Hotspots” of contamination were shown in the central and eastern districts of Moscow with the most intensive traffic and congregation of industries. New spatial patterns were shown for soil performance as geochemical barriers to multiple HM contamination. High buffer capacity of loamy and slightly alkaline soils in the city center with high contamination level resulted in a better performance of soil geochemical barriers compared with some green zones and natural areas where low buffer capacity of loamy sandy and slightly acid soils were not enough to resist even relatively low contamination. The capacity of urban soil to perform a geochemical barrier for contamination by HMs is an important ecosystem service. Spatially explicit information on this ecosystem service can be highly relevant to assess environmental and health risks of urban soil contamination and to support decision making in urban planning and sustainable development.

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“…HQ values of Table S3 imply a critical threat considering that people are also exposed to other food (e.g., list in [57]) and other multiple exposition sources (e.g., [58]). Lizardi et al [12] stated that HQ value surpasses 1.0 for inorganic As considering the uptake of vegetable consumption and other sources (considered in [59]) for the inhabitants of between 1-5 years old from the Puchuncaví valley (where C-SS plot is located). As shown by HQ analysis, amendments improved the food security of lettuces grown in contaminated soils.…”

Section: Effect Of the Amendments On As Concentration In Lettuces And The Implications On Food Safetymentioning

confidence: 99%

Remediation of Agricultural Soils with Long-Term Contamination of Arsenic and Copper in Two Chilean Mediterranean Areas

et al. 2022

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Soil amendments may decrease trace element accumulation in vegetables, improving food security and allowing the recovery of contaminated farmlands. Despite some promising results in the laboratory, validation of soil amendments in field conditions are scarce, especially in aerobic soils. Here, we assessed the effect of different potential soil amendments on arsenic (As) accumulation in lettuces. Then, we compared them in terms of food security and the associated investment (efficacy and efficiency, respectively). We also hypothesized that the soil amendments do not lead to side effects, such as yield decrease, phytotoxicity of Cu, or undesired changes in soil properties. Thereby, we assessed lettuces grown on untreated contaminated soils (C+), treated contaminated soils, and untreated uncontaminated soils (C−) in two contrasting soil types (sandy and loamy soils). The treated contaminated soils consisted of multiple soil amendments. Soil amendments were: diammonium phosphate (DP), iron sulfate (IS), ferrous phosphate (FP), calcium peroxide (CP), and organic matter (OM). We found that phosphate amendments (DP and FP) reduced the As in edible tissues of lettuce in both areas, while CP only reduced As accumulation in the sandy soils area. The As intake through lettuces grown on these amended soils was about 30% lower than on the unamended ones. Cu concentrations in lettuces above 25 mg kg−1 grown in contaminated soils without reducing growth were found, a result that differed from non-field studies.

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Soil and indoor dust as environmental media of human exposure to As, Cd, Cu, and Pb near a copper smelter in central Chile

Cited by 35 publications

References 27 publications

Biomonitoring of Metals in Children Living in an Urban Area and Close to Waste Incinerators

Biomonitoring of Metals in Children Living in an Urban Area and Close to Waste Incinerators

Assessing and mapping urban soils as geochemical barriers for contamination by heavy metal(loid)s in Moscow megapolis

Remediation of Agricultural Soils with Long-Term Contamination of Arsenic and Copper in Two Chilean Mediterranean Areas

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