Detoxification of heavy metals attributed to biological and non–biological complexes in soils around copper producing areas throughout China

Zhang, Juan; Guo, Yameng; Fan, Shu-Kai S.; Wang, Shuo; Shi, Quan; Zhang, Minghua; Zhang, Jianfeng

doi:10.1016/j.jclepro.2021.125999

Cited by 12 publications

(2 citation statements)

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“…For example, studies on the pollution levels of HMs in USD in Zhengzhou (China), Surgut (Russia), Bandar Abbas (Iran), and Sonbhadra (India) using the geoaccumulation index [ 31 ], enrichment factor [ 32 ], Nemerow pollution index [ 33 ], and Tomlinson pollution load index [ 34 ], respectively, have revealed the HM contamination of urban ecosystems. Various models have been developed for assessing the risks of HMs to humans, including BCA (risk-based corrective action) [ 35 ], the CLEA (Contaminated Land Exposure Assessment) [ 36 ], and the HHRE (Human Health Risk Evaluation) [ 8 ]. These models require the input of contaminant exposure parameters and environmental parameters, which improves the accuracy of the assessment results [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Pollution and Risk Assessment of Surface Dust in the Arid NW China

Yang

Eziz

Hayrat

et al. 2022

IJERPH

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High concentrations of heavy metals (HMs) in urban surface dust (USD) can be extremely hazardous to urban ecology and human health. Oasis cities are located at the edge of deserts and are more exposed to salt/sandstorms, and they face a significantly higher accumulation of USD than wet or semi-humid areas. However, systematic studies on the pollution and risk assessment of HMs in USD in oasis cities have rarely been conducted. This study systematically analyzed the enrichment status, spatial distribution, pollution levels, health risks, and sources of HMs in USD in a typical oasis city (Changji city). The results showed that the average concentrations of Pb, Ni, As, Cd, Hg, and Cu in the USD of Changji city were 46.83, 26.35, 9.92, 0.21, 0.047, and 59.33 mg/kg, respectively, and the results of the pollution index evaluation showed moderate Pb, Hg, and Cu pollution, mild Cd pollution, and no Ni or As pollution. The spatial distribution of HM concentrations in the USD was substantially heterogeneous. High values of Pb, Hg, and Cu concentrations were mainly observed in areas with relatively intensive transportation and commercial activities, and high values of Cd and Ni were observed in industrial areas. The health risk assessment showed that HMs do not pose non-carcinogenic risks to humans at their current level, but they pose a carcinogenic risk to children, with As contributing the largest carcinogenic and non-carcinogenic risks. The source identification of HMs showed that the main pollution of HMs were traffic sources for Pb and Cu, industrial sources for Ni and Cd, natural sources for As, and coal-fired sources for Hg. According to the results of the quantitative analysis with the positive matrix factorization, the contribution of pollution sources followed this order: industrial sources (31.08%) > traffic sources (26.80%) > coal-fired sources (23.31%) > natural sources (18.81%).

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Section: Introductionmentioning

confidence: 99%

Heavy Metal Pollution and Risk Assessment of Surface Dust in the Arid NW China

Yang

Eziz

Hayrat

et al. 2022

IJERPH

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“…Por lo tanto, es importante evaluar, a través del estudio de las partículas emitidas por el volcán, el riesgo a la salud que este pudiera representar para las poblaciones cercanas debido a su actividad que periódicamente se incrementa, la cual se caracteriza por fragmentos balísticos, emisión de gases y cenizas (Grutter, 2008;Schiavo et al, 2020;Taquet et al, 2019). Además, podría haber afectaciones debido a sus lixiviados que incrementan la concentración de metales en el ambiente, pudiéndose integrar a los ciclos biológicos causando toxicidad (Armienta et al, 2010;Zhang et al, 2021).…”

Section: Introductionunclassified

Caracterización fisicoquímica de material particulado del Popocatépetl, trayecto Atlixco-Puebla, y su impacto en la salud y el ambiente

Castañeda¹,

Santamaría-Juárez

Ruíz

et al. 2022

Acta Universitaria

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El estudio determinó la presencia de material particulado (MP) emitido por el volcán Popocatépetl los días 29 y 31 de marzo de 2019 en el trayecto Atlixco-Puebla. El objetivo fue identificar tamaño y naturaleza química del MP en esta zona y reconocer el impacto en la salud (por inhalación) y el ambiente, así como comparar las cenizas de los años 1994, 2012 y 2019. El MP suspendido se cuantificó con un contador DT-9880, los metales totales y lixiviados se calcularon por espectrofotometría de absorción atómica (EAA) y la caracterización de cenizas se realizó por difracción de rayos X (DRX), espectroscopia de infrarrojo (FTIR-ATR) y espectroscopia de energía dispersiva (EDS)/microscopia electrónica de barrido (SEM). El 99.9% del MP presentó de 0.3 a 2.5 micrómetros (µm) de metales totales: cromo (8.5 ppm), cobre (0.61 ppm), magnesio (99.9 ppm) y zinc (39 ppm). La lixiviación fue desde 0.05% a 2.5% de metales totales. Se encontraron diferencias morfológicas significativas en la porosidad y tamaño de partícula de las cenizas. Monitorear el MP en esta área permite proponer medidas de atenuación por afectaciones a la salud y ambientales.

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