Influence of Land Use and Road Type
on the Elemental Composition of Urban Dust
in a Mexican Metropolitan Area

Aguilera, Anahí; Armendáriz, Cynthia; Quintana, P.; García‐Oliva, Felipe; Bautista, Francisco

doi:10.15244/pjoes/90358

Cited by 17 publications

(13 citation statements)

References 24 publications

(35 reference statements)

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“…In several cities around the world, air (Son et al, 2018), soils (Ihl et al, 2015), dusts (Ali et al, 2017;Men et al, 2018;Aguilera et al, 2019), and plant contamination (Aguilar-Reyes et al, 2012) by heavy metals are a serious problem that affects population health (WHO, 2014;Budai & Clement, 2018). In the case of air and soil contamination, several countries have implemented official standards since decades ago that define the maximum permissible concentrations of heavy metals; however, there is no regulation for street dust and plants.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal pollution of street dust in the largest city of Mexico, sources and health risk assessment

Aguilera

Bautista

Gutiérrez-Ruíz

et al. 2021

Environ Monit Assess

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In large industrialized cities, tons of particles containing heavy metals are released into the environment and accumulate on street surfaces. Such particles cause a potential risk to human health due to their composition and size. The heavy metal contamination levels, main emission sources, and human health risks were identified in 482 samples of street dust. Heavy metal concentrations were obtained by microwave-assisted acid digestion and ICP-OES. The results indicated that street dust in Mexico City is contaminated mainly with Pb, Zn, and Cu, according to the contamination factor and the geoaccumulation index. The pollution load index of the street dust was made with the concentrations of Pb, Zn, Cu, Cr, and Ni. The main sources of Pb, Zn, Cu, and Cr are anthropic, probably due to vehicular traffic. The highest levels of Cr and Pb in urban dust represent a health risk for children. Contamination limits were proposed for heavy metals in street dust of Mexico City. These limits might be useful to generate and apply public policies to decrease anthropic emissions of the heavy metals studied, particularly Cr and Pb.

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Section: Introductionmentioning

confidence: 99%

Heavy metal pollution of street dust in the largest city of Mexico, sources and health risk assessment

Aguilera

Bautista

Gutiérrez-Ruíz

et al. 2021

Environ Monit Assess

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“…Lanzerstorfer 13 reported that the PTEs concentrations in urban RDS can be used as a useful indicator for environmental pollution. The potential sources of PTEs can be identified by evaluating the PTEs concentrations in RDS from different land use types and the elemental ratios of them 11 , 24 – 26 . Although there are very few RDS studies in industrial areas compared to urban areas, the study of PTEs concentration in RDS from the industrial area will make it possible to differentiate between transport and industrial activities.…”

Section: Introductionmentioning

confidence: 99%

Potentially toxic elements pollution in road deposited sediments around the active smelting industry of Korea

Jeong

Choi

2021

Sci Rep

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Potentially toxic elements (PTEs) were investigated in the different sizes of road deposited sediments (RDS) around the active smelting industry to understand their sources and to assess the pollution and ecological risk levels. The highest PTEs concentrations was shown near the raw materials import port and the smelting facilities. The fine particles of RDS showed extremely high PTEs concentrations. Zn has the highest mean concentration in the < 63 μm particle size of RDS, followed by Pb > Cu > As > Cr > Ni > Cd > Hg. The PTEs concentrations of this study were the highest values compared to the soils around the smelter and the RDS in urban and industrial areas in the world. This indicates that these PTEs pollution in RDS were mainly attributed to the transportation of raw materials for the smelting industry. According to nemerow pollution index calculation, RDS at all sampling sites with particles of less than 250 mm was seriously polluted with PTEs. The ecological risk was also found to be very high in all RDS fractions and highly toxic elements such as Cd, Pb and Hg pose extremely risk. Given the total amounts PTEs in the road surface, it is necessary to apply RDS removal management plan to reduce the PTEs pollution.

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“…This last piece of evidence could be inferred as the effect of surface runoff form the highway. Road tra c has been related to the production and deposition of dust with metals and elements related to engine combustion and tires wear (Adachi and Tainosho 2004, Aguilera et al 2018). The production of these residues, together with the preferential ow northward of the water (Perry et al 2002, McKay et al 2020, help explaining its presence only in one side of the road, partially supporting our hypothesis that the highway caused changes in the biogeochemistry of the marsh.…”

Section: Discussionmentioning

confidence: 99%

Physical and Biogeochemical Characterization of a Tropical Karstic Marsh in the Yucatan Peninsula, Mexico.

Cejudo

Ortega-Camacho

García-Vargas

et al. 2021

Preprint

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Karstic wetlands provide important ecosystem services such as maintenance of hydrological balance, flood regulation, drinking water supply and nutrients cycling. It is important to conserve and maintain karstic wetlands due to its interaction with groundwater systems and its socioeconomic relevance. The objective of this research was to generate base-line knowledge of the microtopography, hydroperiod and biogeochemical characteristics of poorly known tropical karstic marshes by testing two hypotheses, the phreatotrophic nature of tropical karstic marshes, and the alteration of its biogeochemistry by a highway dividing the marsh. The study site is located in the north of the state of Quintana Roo (Mexico), in pseudo-paludal depressions associated to fractures. The water level varied from few centimeters below the ground to more than 100 cm. We demonstrate that the wetland is groundwater-fed with differences among groundwater, interstitial and surface water in almost all parameters measured. The water is calcium bicarbonate type; the main processes occurring are recharge, evaporation and rock dissolution. Our results suggests active denitrification, low phosphates attributed to Ca- and Fe/Al-bound P, elevated alkalinity and sulfate reduction due to anaerobic conditions in water and soil. The soil reflect its sedimentary origin, the bulk density is low with very high water retention capacity. We do not have enough evidence of the highway modifying the biogeochemistry or hydrology of the marsh. These karstic wetlands provide important provisioning and supporting ecosystem services that should be studied, acknowledged and maintained.

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Influence of Land Use and Road Type on the Elemental Composition of Urban Dust in a Mexican Metropolitan Area

Cited by 17 publications

References 24 publications

Heavy metal pollution of street dust in the largest city of Mexico, sources and health risk assessment

Heavy metal pollution of street dust in the largest city of Mexico, sources and health risk assessment

Potentially toxic elements pollution in road deposited sediments around the active smelting industry of Korea

Physical and Biogeochemical Characterization of a Tropical Karstic Marsh in the Yucatan Peninsula, Mexico.

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