Contribution of mine wastes to atmospheric metal deposition in the surrounding area of an abandoned heavily polluted mining district (Rio Tinto mines, Spain)

Castillo, Sonia; Rosa, J. de la; Campa, Ana M. Sánchez de la; González, I.; Fernández-Caliani, Juan Carlos; González, I.; Romero, A.

doi:10.1016/j.scitotenv.2013.01.076

Cited by 100 publications

(39 citation statements)

References 43 publications

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“…Mean value (M) and standard deviation (σ) of the main chemical components measured indoor and outdoor during the spring/summer period. Soil also showed higher concentrations indoors, in agreement with a greater dryness of earth crust during the warm season and a consequent more intense re-suspension caused by people movements [49]. Typical components of soil were highly correlated (e.g., Pearson's coefficient for outdoor Ca and Si was higher than 0.8) and the same behavior was registered for K + .…”

Section: Chemical Composition-spring/summer Campaignsupporting

confidence: 53%

Chemical Composition of Indoor and Outdoor PM2.5 in Three Schools in the City of Rome

Tofful

Perrino

2015

Atmosphere

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Abstract:In Italy, children spend up to 30% of their time in school institutions; for this reason, the evaluation of indoor air quality in schools constitutes a necessary step forward in the direction of child health protection. In this study, we investigated the chemical composition of PM2.5 collected simultaneously indoor and outdoor in three primary schools in Rome. Seasonal variations between winter and spring/summer were evaluated, as well as the role of the main macro-sources of PM (soil, sea, traffic, secondary inorganics and organics). During winter periods, characterized by strong atmospheric stability, the main contributors were organics and combustion products, which accounted for more than 70% of the total mass both indoor and outdoor. Spring/summer period was characterized by very low outdoor concentrations (12 μg/m 3 on average) and by a more balanced contribution of organic, traffic and secondary inorganic components. Indoor, the contribution of soil-related species from re-suspension of settled dust and secondary inorganic species from outdoor photochemical reactions became significant. Given that several indoor exceedances of the international air quality standards for PM2.5 were recorded during the most polluted days, the infiltration of outdoor air, due to the inadequate construction characteristics of the buildings and the absence of automated air filtration systems, seemed to be the main causes of the high PM concentrations measured indoor.

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Section: Chemical Composition-spring/summer Campaignsupporting

confidence: 53%

Chemical Composition of Indoor and Outdoor PM2.5 in Three Schools in the City of Rome

Tofful

Perrino

2015

Atmosphere

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“…This factor should be well associated with dust (Mn, Cr) re-suspended from roads and soil [32,33,36,38]. Factor II (FII) is dominated by Ni (0.856), Pb (0.781), and moderately associated with Zn (0.534) and As (0.414), which has been reported to mainly originate from industrial emissions and coal combustion [32,33,[38][39][40]. Factor III (FIII) is dominated by Cd (0.856), which originated from vehicle emissions/oil combustion [32].…”

Section: Source Identificationmentioning

confidence: 99%

Sources and Health Risks of Heavy Metals in PM2.5 in a Campus in a Typical Suburb Area of Taiyuan, North China

2018

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Abstract:To evaluate air pollution and the public health burden of heavy metals in PM 2.5 in a campus with a population of approximately 40,000 in a typical suburb area of Taiyuan, North China, PM 2.5 measurements were conducted during the spring and winter of 2016. The average concentrations of PM 2.5 in spring and winter were 97.3 ± 35.2 µg m −3 and 205.9 ± 91.3 µg m −3 , respectively. The order of concentration of heavy metals in PM 2.5 was as follows: Zn > Pb > Mn > Cu > Cr > Ni > Cd > As, in both spring and winter. The concentrations of Cd and Pb in winter and the concentrations of Cr in both spring and winter in this study were significantly higher than the corresponding air quality standard values. Road/soil dust, industrial emissions/coal combustion, and vehicle emissions/oil combustion and coal combustion/industrial emissions, road/soil dust, and vehicle emissions/oil combustion were identified by principal component analysis to be the major sources of heavy metals for spring and winter, respectively. The carcinogenic risks posed by Cr via the three exposure pathways (except for inhalation exposure to children) and by Pb via ingestion exposure exceeded the acceptable level for both children and adults. The non-carcinogenic risks posed by Mn via inhalation for both children and adults, and by Cr and Pb for children via ingestion exceeded the acceptable level.

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“…During the metal production process, the buried heavy metals that are exposed to the surface soil migrate to the surrounding environment and cause serious pollution problems in the mining area (Castillo et al 2013;Wali et al 2013). High contents of Cd and Pb exist in the polluted farmland soils and can be absorbed by crops and the human body via the food chain; thus, they are a threat to human health (Aigberua et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Distribution characteristics of cadmium and lead in particle size fractions of farmland soils in a lead–zinc mine area in Southwest China

Zhan

et al. 2018

Environ Syst Res

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Background: Cd and Pb were the main pollution elements in Pb-Zn mining areas. Several studies have focused on heavy metal pollution and risk assessment in the Huize Pb-Zn mining area. In the present study, the soil aggregate composition, chemical properties, contents and chemical fractions of Cd and Pb were analysed in soils at depths of 0-60 cm in the Huize Pb-Zn mining area. Agricultural soils were sampled at depths of 0-20, 20-40 and 40-60 cm surrounding the Pb-Zn mine. The particle size fractions were determined by the aggregate composition of macroaggregates (0.25-2 mm), micro-aggregates (0.053-0.25 mm), silt (0.002-0.053 mm) and colloid (< 0.002 mm).Results: There was a large proportion of the macro-aggregate (52.4%) and less of the colloid (1.8%). With a decrease in particle size, the pH, organic matter contents, cation exchange capacity, and free iron oxide increased in the soil aggregates. Although the total and available Cd and Pb contents were highest in the colloid, the macro-aggregate maximally contributed to the total Cd (48.18%), total Pb (53.48%) and available Pb (47.42%) content, and the colloid maximally contributed to the available Cd (47.21%) in soils. The Cd and Pb existed primarily as residual fractions, followed by Fe-Mn oxide fraction and the exchangeable fraction in soil aggregates. There were higher distribution factors for the residual and exchangeable fractions of both Cd and Pb in the colloid (DF > 33). Furthermore, there were close correlations between the Cd and Pb fractions and the pH and the phosphorus content and between the exchangeable Pb content and the content of organic matter, cation exchange capacity, and free iron oxide in soil aggregates. Conclusion:Cd and Pb existed mainly in the micro-aggregate and colloid and that their chemical fractions were closely related to the chemical properties in soil aggregates of the polluted farmland.

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Contribution of mine wastes to atmospheric metal deposition in the surrounding area of an abandoned heavily polluted mining district (Rio Tinto mines, Spain)

Cited by 100 publications

References 43 publications

Chemical Composition of Indoor and Outdoor PM2.5 in Three Schools in the City of Rome

Chemical Composition of Indoor and Outdoor PM2.5 in Three Schools in the City of Rome

Sources and Health Risks of Heavy Metals in PM2.5 in a Campus in a Typical Suburb Area of Taiyuan, North China

Distribution characteristics of cadmium and lead in particle size fractions of farmland soils in a lead–zinc mine area in Southwest China

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