Tracing geogenic and anthropogenic sources in urban dusts: Insights from lead isotopes

Río-Salas, Rafael Del; Ruíz, Joaquin; O-Villanueva, Margarita de la; Valencia-Moreno, Martín; Moreno-Rodríguez, Verónica; Gómez-Álvarez, Agustín; Grijalva, T.; Mendívil, Héctor; Paz-Moreno, Francisco A.; Meza-Figueroa, Diana

doi:10.1016/j.atmosenv.2012.06.061

Cited by 56 publications

(24 citation statements)

References 31 publications

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“…In the case of Pb, only two samples of road dust yielded values above the recommended limit (400 mg kg -1 ); both samples correspond to high-traffic areas. According to Del Rio-Salas et al (2012) and Rodríguez-Salazar et al (2011), Pb isotopic ratios suggest pollution by Pb in gasoline. In Mexico, using Pb as a gasoline additive has been prohibited since 1987; however, a recent study suggests a mixing of Pb isotopic signatures from leaded gasoline and urban dust.…”

Section: Metal Concentrations In Urban Dustmentioning

confidence: 98%

“…The purpose was to obtain a set of samples across industrial, commercial, residential, and high and low trafficdensity areas including different socioeconomic neighborhoods. As described by Del Rio-Salas et al (2012), 116 urban street dust samples were obtained. Briefly, settler dust at each sampling site was collected from within 2 m 2 using a polyethylene brush, a tray, and containers.…”

Section: Sample Collectionmentioning

confidence: 99%

“…In this context, it is important to conduct studies in children looking for associations including soil resuspension. Del Rio-Salas et al (2012) reported that dust emission related to soil resuspension as a major contributor to the atmospheric pollution in arid zones.…”

mentioning

confidence: 99%

“…Children spend more time in outdoor activities; therefore, they are more exposed to metals by ingestion through hand-tomouth pathways (Charlesworth et al 2011;Habil et al 2013;Okorie et al 2012). Airborne dust is an important transport mechanism for metals in arid zones (Charlesworth et al 2011;Del Rio-Salas et al 2012). Roofs are interesting sampling sites because the suspended dust could provide information about atmospheric pollution during the dry season when the total suspended particulate matter can reach maximum values (Moreno-Rodríguez et al 2015).…”

mentioning

confidence: 99%

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Dust–Metal Sources in an Urbanized Arid Zone: Implications for Health-Risk Assessments

García-Rico

Meza-Figueroa

Gandolfi

et al. 2015

Arch Environ Contam Toxicol

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The available information concerning metal pollution in different dust sources and the health effects in children remains limited in Mexico. This study focuses on Hermosillo, which is an urbanized area located in the Sonoran Desert in which soil resuspension and dust emission processes are common. The metal content of arsenic (As), chromium (Cr), manganese (Mn), and lead (Pb) were determined in three dust sources (playgrounds, roofs, and roads), each representing different exposure media (EM) for these elements. The metal levels in dust were found in the order of Mn > Cr > Pb > As with the highest metal content found in road dust. Despite the similar average metal distributions, principal component analysis shows a clear separation of the three EM with playground dust related to Cr and Mn and road dust to As and Pb. However, the geoaccumulation index results indicate that dust samples are uncontaminated to moderately polluted, except for Pb in road dust, which is considerably high. In addition, the enrichment factor suggests an anthropogenic origin for all of the studied metals except for Mn. In this context, the hazard index (HI) for noncarcinogenic risk is >1 in this population and thus represents a potential health risk. The spatial distribution for each metal on EM and the HI related to the marginality index could represent a more accurate decision-making tool in risk assessment studies.

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Section: Metal Concentrations In Urban Dustmentioning

confidence: 98%

Section: Sample Collectionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Dust–Metal Sources in an Urbanized Arid Zone: Implications for Health-Risk Assessments

García-Rico

Meza-Figueroa

Gandolfi

et al. 2015

Arch Environ Contam Toxicol

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“…Generally, the urban area is an assembly of different land use types with typical local and diffuse pollution sources. So, the widely variations of heavy metals concentrations between different functional areas may be attributed to the distinctive artificial activities in each functional area that release different kinds of heavy metals content and deposited in the street surface [78,88]. …”

Section: Heavy Metals Concentration In Urban Road Dustsmentioning

confidence: 99%

Pollution Assessment and Health Risk Implication of Human Exposure to Heavy Metals in Road Dusts from Different Functional Areas in Jeddah, Saudi Arabia

Shabbaj¹,

Alghamdi²,

Shamy³

et al. 2017

Preprint

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Data dealing with the assessment of heavy metal pollution in road dusts in Jeddah, Saudi Arabia and its implication to human health risk of human exposure to heavy metals, are scarce. Road dusts were collected from five different functional areas (traffic areas TA, parking areas PA, residential areas RA, mixed residential commercial areas MCRA and suburban areas SA) in Jeddah and one in rural area (RUA) in Hada Al Sham. We aimed to measure the pollution levels of heavy metals and estimate their health risk of human exposure applying risk assessment models described by USEPA. Using geo-accumulation index (Igeo), the pollution level of heavy metals in urban road dusts was in the following order Cd > As > Pb > Zn > Cu > Ni > Cr > V > Mn > Co > Fe. Urban road dust was found to be moderately to heavily contaminated with As, Pb and Zn, and heavily to extremely contaminated with Cd. Calculation of enrichment factor (EF) revealed that heavy metals in TA had the highest values compared to that of the other functional areas. Cd, As, Pb, Zn and Cu were severely enriched, while Mn, V, Co, Ni and Cr were moderately enriched. Fe was consider as a natural element and consequently excluded. The concentrations of heavy metals in road dusts of functional areas were in the following order: TA > PA > MCRA > SA > RA > RUA. The study revealed that both children and adults in all studied areas having health quotient (HQ) < 1 are at negligible non-carcinogenic risk. The only exception was for children exposed to As in TA. They had an ingestion health quotient (HQing) 1.18 and a health index (HI) 1.19. The most prominent exposure route was ingestion. The cancer risk for children and adults from exposure to Pb, Cd, Co, Ni, and Cr was found to be negligible (< 1 x 10 -6 ).

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Exposure Assessment of Organochlorine Pesticides, Arsenic, and Lead in Children From the Major Agricultural Areas in Sonora, Mexico

Meza-Montenegro

Balderas-Cortés

Yáñez-Estrada

et al. 2012

Arch Environ Contam Toxicol

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There is a lack of information of exposure to organochlorine pesticides (OCP) and some metals, such as lead (Pb) and arsenic (As), both of which were used as arsenicals pesticides, in children living in the major agricultural areas of Mexico. The objective of this study was to assess the exposure of children to different OCP, As, and Pb in the Yaqui and Mayo valleys of Sonora to generate population baseline levels of these toxins. A cross-sectional study was undertaken in 165 children (age 6–12 years old) from 10 communities from both valleys during 2009. Blood samples were analyzed for OCP and Pb and first morning void urine for inorganic As (InAs). All of the blood samples had detectable levels of dichlorodiphenyltrichloroethylene (p,p′-DDE) ranging from 0.25 to 10.3 μg/L. However lindane, dichlorodiphenyltrichloroethane (p,p′-DDT), aldrin, and endosulfan were detected in far less of the population (36.4, 23.6, 9.1, and 3 %, respectively). Methoxychlor and endrin were not found in any sample. The average value of Pb in this population was 3.2 μg Pb/dL (range 0.17–9.0) with 8.5 % of the samples having levels <5.0 μg Pb/dL. Urinary As levels ranged from 5.4 to 199 μg As/L with an average value of 31.0 μg As/L. Levels > 50 μg/L were observed in 12.7 % of the samples. Our results show that is important to start a risk-reduction program to decrease exposure to these toxins in Mexican communities. In addition, the results can be used to establish the baseline levels of exposure to these toxins in this agricultural region and may be used as a reference point for regulatory agencies.

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Tracing geogenic and anthropogenic sources in urban dusts: Insights from lead isotopes

Cited by 56 publications

References 31 publications

Dust–Metal Sources in an Urbanized Arid Zone: Implications for Health-Risk Assessments

Dust–Metal Sources in an Urbanized Arid Zone: Implications for Health-Risk Assessments

Pollution Assessment and Health Risk Implication of Human Exposure to Heavy Metals in Road Dusts from Different Functional Areas in Jeddah, Saudi Arabia

Exposure Assessment of Organochlorine Pesticides, Arsenic, and Lead in Children From the Major Agricultural Areas in Sonora, Mexico

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