Spatial distribution of magnetic material in urban road dust classified by land use and type of road in San Luis Potosí, Mexico

Aguilera, Anahí; Morales, Juan; Goguitchaichvili, Avto; García‐Oliva, Felipe; Armendáriz-Arnez, Cynthia; Quintana, P.; Bautista, Francisco

doi:10.1007/s11869-020-00851-5

Cited by 18 publications

(12 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spatial distribution of Pb, Zn, and Cu concentrations (mainly derived from industrial and traffic sources) was plotted using a geostatistical method, which consists of an exploratory data analyses (error detection), structural analyses or variogram, Kriging interpolation, and mapping. Details of the exploratory data analyses used can be consulted in Aguilera et al [22] and references therein.…”

Section: Discussionmentioning

confidence: 99%

Heavy metal content estimation in the Mexico City Street dust: an inter-method comparison and Pb levels assessment during the last decade

et al. 2020

Self Cite

View full text Add to dashboard Cite

Elemental concentrations measured in 482 street dust samples from different urban and conurbated areas of Mexico City obtained using a portable energy-dispersive X-ray fluorescence spectrometer are reported. The data quality of eight different elements commonly used in pollution studies is evaluated, calculating the data precision and accuracy obtained with this handheld equipment. Precision for the various elements analyzed ranges between 1.2 and 15.9%, which can be considered as adequately precise for portable equipment. In the case of the accuracy, a maximum under-/overestimation of less than 20% was achieved. Pb and Zn correlation factors were 0.725 and 0.923, respectively. Similar mean Pb concentration values to those reported by ICP-OES were obtained. An average value of ~ 100 mg/kg for Pb concentration was estimated, which is significantly lower than the utmost permissible levels for residential/commercial usage. On the contrary, contamination factors calculated to identify the metal accumulation against those of the background values point from considerable to high contamination for 62 and 30% of the street dust samples analyzed, respectively. A comparison of the results recorded in Mexico City 10 years ago against those obtained suggests that no significant reduction in Pb concentration has occurred during this period despite the measures implemented to stop using leaded gasoline for three decades. Finally, the sample's low-amount requirements, simple nondestructive preparation procedure, and rapid elemental concentration determinations make portable XRF a promising geochemical determination technique for the fast and economic evaluation of contamination by heavy metals in large cities.

show abstract

Section: Discussionmentioning

confidence: 99%

Heavy metal content estimation in the Mexico City Street dust: an inter-method comparison and Pb levels assessment during the last decade

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…On the other hand, it is necessary to establish a monitoring system for heavy metals in the dust of the streets, soils, and plants of Mexican cities, as well as pollution indicators with proxy characteristics (easy analysis and low cost) that allow the analysis of thousands of dust samples to identify the sites of high concentration of heavy metals. In this sense, magnetic (Sánchez-Duque et al, 2015;Aguilera et al, 2020) and colorimetric (Cortés et al, 2015;Sanleandro et al, 2018;Aguilar et al, 2021) techniques are promising.…”

Section: Human Health Riskmentioning

confidence: 99%

Heavy Metal Contamination (Cu, Pb, Zn, Fe, and Mn) in Urban Dust and its Possible Ecological and Human Health Risk in Mexican Cities

Aguilera

Cortés

Delgado

et al. 2022

Front. Environ. Sci.

Self Cite

View full text Add to dashboard Cite

Cities occupy a relatively small percentage of the Earth’s surface. However, they influence the entire biosphere, affect biodiversity and environmental conditions, which end up affecting human health and well-being. Therefore, it is necessary to evaluate the level of contamination by heavy metals in urban environments, as well as the possible ecological and human health risks. In this study, the urban dust of six Mexican cities was analyzed and it was found that all studied cities were contaminated, except for Mérida, when soil world background value was used as reference. In contrast, Mérida and Morelia were the most contaminated when a local background was used (decile 1). The concentrations in the cities for the metals Cu, Pb and Zn, decreased in the order CDMX > San Luis Potosí > Toluca > Morelia-Ensenada > Mérida. In the particular case of Cu and Pb, SLP accompanied CDMX as the most polluted city. For Mn and Fe concentrations, the order was CDMX > Toluca > Ensenada > SLP > Morelia-Mérida. No potential ecological risk was found due to contamination by Cu, Pb, and Zn, in the urban dust of the studied cities. However, the higher metal contribution to the potential ecological risk in all the cities was from Pb; and it represented a moderate ecological risk of more than 25% on CDMX, SLP, and Toluca sites. Pb can also be a potential risk for children’s health. In addition, chronic exposure to Fe and Mn could trigger many ailments. In the future, it is important to identify the main sources of Pb in cities and seek mitigation strategies to reduce the possible adverse effects that this metal may be causing.

show abstract

“…3c-d). Atmospheric particulates in pollution (Liu et al, 2019;Wang et al, 2019c), road-deposited sediments (Aguilera et al, 2020;Maity et al, 2020), street dusts (Wang et al, 2011;Wang, 2013;Zhu et al, 2013;Li et al, 2014;Wang et al, 2019b) and dust-loaded leaves (Cao et al, 2015) of low fd% have been recorded in other metropolitan sites. Here, χfd% was signi cantly lower in surface roadside dust than in park lawn top-soil and suggested the main contributions of the magnetic component of surface roadside dust were exogenous magnetic phases.…”

Section: The Enhanced Magnetic Particles In Surface Roadside Dustmentioning

confidence: 99%

Traffic-related activities driven dust-bound magnetic pollution in urban road-system: Case study of Xiamen island, China

Yang¹,

Wu²,

Hong³

et al. 2021

Preprint

View full text Add to dashboard Cite

Sources of magnetic phases in urban dust include traffic-related activities, industrial products and detrital minerals. Exposure to magnetic phases in urban dust co-associated with trace metals is associated with respiratory ailments in sensitive organisms. Here, we collected samples of surface roadside dust and topsoil from Xiamen island, Fujian, China and then magnetic properties were determined using rock-magnetic methods. Magnetic particle concentrations in surface roadside dust was found to be significantly high compared with magnetic content in topsoil using magnetic susceptibility (𝜒LF), saturation isothermal remanent magnetization (SIRM) and susceptibility of anhysteretic remanent magnetization (𝜒ARM). Roadside dusts had much lower percent frequency-dependent susceptibility (1.83 ± 0.12%) than topsoil (2.96 ± 0.14%). Given the 𝜒ARM/SIRM vs 𝜒fd% and first-order reversal curves, most of the magnetic particles in roadside dust were large than in topsoil. Variable temperature dependence of magnetization, isothermal remanent magnetization decomposition spectra and first-order reversal curves suggested the enhancement of dust 𝜒LF, SIRM and 𝜒ARM were related to the exogenous pseudo-single-domain magnetite-like materials. This study provides a better understanding of magnetic ageing of dust particles in coastal cities. These results will be useful in optimizing environmental policies aimed at regulating magnetic dust particles pollution in coastal cities.

show abstract

Spatial distribution of magnetic material in urban road dust classified by land use and type of road in San Luis Potosí, Mexico

Cited by 18 publications

References 30 publications

Heavy metal content estimation in the Mexico City Street dust: an inter-method comparison and Pb levels assessment during the last decade

Heavy metal content estimation in the Mexico City Street dust: an inter-method comparison and Pb levels assessment during the last decade

Heavy Metal Contamination (Cu, Pb, Zn, Fe, and Mn) in Urban Dust and its Possible Ecological and Human Health Risk in Mexican Cities

Traffic-related activities driven dust-bound magnetic pollution in urban road-system: Case study of Xiamen island, China

Contact Info

Product

Resources

About