Novel Isotopic Evidence Unveils Greater Contributions of Waste Incineration to PM2.5‐Bound Antimony in Two Mega‐Cities DOI Creative Commons
Chao Zhang,

Guangyi Sun,

Yunjie Wu

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(4)

Published: Feb. 19, 2025

Abstract PM 2.5 ‐bound antimony (Sb) may threaten human health and sustainable development, necessitating accurate source identification for its effective control. This study pioneered the application of Sb isotope signatures to trace sources, presenting first isotopic fingerprints in urban . We selected two mega‐cities with contrasting profiles: more developed Wuhan central less Guiyang southwest China. Urban both cities exhibited an ε 123 value 1.84 ± 0.79‱, a distinct seasonal pattern, that is, heavier isotopes spring/winter lighter summer/autumn. Isotopic apportionment revealed waste incineration as predominant anthropogenic cites at 34.0–39.1%, despite their massive economic industrial differences. Brake wear emerged second major source, especially Wuhan, where vehicle ownership is greater, accounting 21.2%. Complementary analyses using enrichment factor, elemental ratios, positive matrix factorization modeling, backward trajectory analysis corroborated findings. offers novel approach identify unveiling brake contributors from new perspective.

Language: Английский

Occurrence, sources and health risks of toxic metal(loid)s in road dust from a mega city (Nanjing) in China DOI
Xiaoyu Wang,

Enfeng Liu,

Qi Lin

et al.

Environmental Pollution, Journal Year: 2020, Volume and Issue: 263, P. 114518 - 114518

Published: April 3, 2020

Language: Английский

Citations

60
Hazardous thoracic and ultrafine particles from road dust in a Caribbean industrial city DOI
Omar Ramírez,

Kátia da Boit,

Erika Blanco

et al.

Urban Climate, Journal Year: 2020, Volume and Issue: 33, P. 100655 - 100655

Published: June 9, 2020

Language: Английский

Citations

60
Health Risk Assessment of Heavy Metals Accumulated on PM2.5 Fractioned Road Dust from Two Cities of Pakistan DOI Open Access

Haseeb Tufail Moryani,

Shuqiong Kong, Jiangkun Du

et al.

International Journal of Environmental Research and Public Health, Journal Year: 2020, Volume and Issue: 17(19), P. 7124 - 7124

Published: Sept. 29, 2020

The aim of this study is to identify and investigate levels toxic heavy metals in PM2.5 fractioned road dust better understand the associated inhalation risk potential health impacts. To achieve aim, concentrations seven traffic generated (Cu, Pb, Zn, Cd, Ni, Sb, Cr) were determined fraction samples from four different locations (offices, residential, hospital, school) two cities (Karachi Shikarpur) Pakistan using ICP-MS. average concentration values Karachi as follows: 332.9 mg/kg Cu, 426.6 4254.4 62.3 389.7 70.4 148.1 Cr, whereas Shikarpur 245.8 538.4 8351.0 57.6 131.7 314.5 346.6 Cr. pollution level was assessed through indices enrichment factor (EF) geoaccumulation index (Igeo). These showed moderate extreme studied areas both cities. assessment contact conducted according United States Environmental Protection Agency’s (USEPA) model for children adults. Both non-cancerous cancerous risks characterised each location. As yet, there not a single on fractions Shikarpur, findings research will facilitate researchers further investigations current field.

Language: Английский

Citations

55
Human health risk via soil ingestion of potentially toxic elements and remediation potential of native plants near an abandoned mine spoil in Ghana DOI
Albert Kobina Mensah, Bernd Marschner, Vasileios Antoniadis

et al.

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 798, P. 149272 - 149272

Published: July 24, 2021

Language: Английский

Citations

54
Characterizing the sources, concentrations and resuspension potential of metals and metalloids in the thoracic fraction of urban road dust DOI Creative Commons
Clare L.S. Wiseman, Christine Levesque, Pat E. Rasmussen

et al.

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 786, P. 147467 - 147467

Published: April 30, 2021

Road dust is a sink and source of metals metalloids human health concern. To date, many studies have examined the composition road but there remain critical knowledge gaps on chemistry thoracic fractions (< 10 μm) their patterns deposition resuspension. The goal this study to characterize elemental concentrations sources resuspension potential for Toronto, Ontario, Canada. Bulk sweepings were acid digested (HF, HClO4, HNO3 HCl) measured using ICP-MS. Principal component analysis (PCA) was applied infer emissions. Annual loadings roads estimated data total collected by City Toronto. mass amounts available calculated assuming contribution 10% fraction. median trace element in city (n = 64) ranged from highest lowest as follows: Mn > Zn Ba Cr Cu Pb V Ni Sn Mo Co As Sb Cd. Iron, Cr, Ni, Co, levels significantly associated with class, expressway. Most elements, especially Zn, enriched sweepings. PCA results demonstrate importance non-fossil fuel, traffic-related Difficulties identifying sources, given uncertainties regarding overlapping chemical profiles, are also highlighted. Significant occur, largest identified Fe, Al, Mn, Cu. predicted be most important emissions V, Sn, Mo, Sb.

Language: Английский

Citations

49
Human health risk assessment for PAHs, phthalates, elements, PCDD/Fs, and DL-PCBs in PM2.5 and for NMVOCs in two East-Mediterranean urban sites under industrial influence DOI Creative Commons
Marc Fadel, Frédéric Ledoux, Charbel Afif

et al.

Atmospheric Pollution Research, Journal Year: 2021, Volume and Issue: 13(1), P. 101261 - 101261

Published: Nov. 6, 2021

Language: Английский

Citations

46
Bioaccessibility and public health risk of heavy Metal(loid)s in the airborne particulate matter of four cities in northern China DOI
Yuxuan Ren, Qing Luo,

Shaojie Zhuo

et al.

Chemosphere, Journal Year: 2021, Volume and Issue: 277, P. 130312 - 130312

Published: March 19, 2021

Language: Английский

Citations

45
Particle-bound PAHs and Chemical Composition, Sources and Health Risk of PM2.5 in a Highly Industrialized Area DOI Creative Commons
Elizabeth Vega,

Diego López-Veneroni,

Omar Ramírez

et al.

Aerosol and Air Quality Research, Journal Year: 2021, Volume and Issue: 21(10), P. 210047 - 210047

Published: Jan. 1, 2021

PM2.5 monitoring campaigns were conducted in 2006, 2010, and 2011 Tula, Hidalgo, Mexico, a highly industrialized area which includes refinery, thermoelectric power plant, five cement plants, limestone mining, industrial waste combustion. These data establish baselines trends against later concentrations can be compared as emission reduction plans are implemented. mass, chemical composition, 15 particle-bound polycyclic aromatic hydrocarbons (PAHs) measured at two sites. masses ranged from 26 to 31 µg m–3. Carbonaceous aerosols the largest component, accounting for 47–57% of mass. Approximately 40–51% carbonaceous aerosol was attributed secondary organic carbon. Ionic species accounted 40–44% PM2.5, with sulfate being dominant ion. The sum PAH 14–31 ng Six factors derived Principal Component Analysis (PCA) explained ~85% variance. associated sources based on marker resulting heavy-oil combustion (22% variance), vehicle engine exhaust (13–19% fugitive dust (18% biomass burning (9–13% (14% emissions (6–10% variance). Combustion solid (e.g., tires waste) recycling kilns incinerators resulted elevated toxic such as, Cd, Sb range 0.02–0.3 A health risk assessment carcinogenic trace elements performed showing that total cancer decreased both children adults 2010/2011 (ranging 3.5 × 10–6 6.0 10–5) 2006 8.6 10–7 5.7 10–6). inhalation life-time (ILCR) PAHs 10–5 1.2 10–4. Air quality improved by switching cleaner fuels benefit use natural gas instead fuel oil plant.

Language: Английский

Citations

42
Health Risk Assessment of PM2.5 and PM2.5-Bound Trace Elements in Thohoyandou, South Africa DOI Open Access
Karl Kilbo Edlund,

Felicia Killman,

Péter Molnár

et al.

International Journal of Environmental Research and Public Health, Journal Year: 2021, Volume and Issue: 18(3), P. 1359 - 1359

Published: Feb. 2, 2021

We assessed the health risks of fine particulate matter (PM2.5) ambient air pollution and its trace elemental components in a rural South African community. Air is largest environmental cause disease disproportionately affects low- middle-income countries. PM2.5 samples were previously collected, April 2017 to 2018, mass determined. The filters analyzed for chemical composition. United States Environmental Protection Agency’s (US EPA) risk assessment method was applied. Reference doses calculated from World Health Organization (WHO) guidelines, National Ambient Quality Standards (NAAQS), US EPA reference concentrations. Despite relatively moderate levels substantial, especially infants children. average annual concentration 11 µg/m3, which above WHO but below NAAQS. Adults exposed during May October, whereas children throughout year. Particle-bound nickel posed both non-cancer cancer risks. conclude that poses Thohoyandou, despite being compliant with yearly results indicate quality standards need be tightened lowered Africa.

Language: Английский

Citations

37
Impacts of the COVID-19 on all aircraft emissions of international routes in South America DOI Creative Commons
Qiang Cui,

Yilin Lei,

Ye Li

et al.

iScience, Journal Year: 2022, Volume and Issue: 25(9), P. 104865 - 104865

Published: Aug. 6, 2022

The COVID-19 pandemic has had a significant impact on South America's economic development, as well its international civil aviation industry. This paper seeks to calculate the emissions of six pollutions (CO2, CO, HC, NOx, SO2, and PM2.5) from routes in America during 2019-2021 discusses impacts emission change. modified BFFM2-FOA-FPM method is proposed unify CO2 non-CO2 calculations. calculated results' average error rate about 5.12%. results showed that affected all emissions, including number routes, flight distance, aircraft configuration, proportion CCD phase etc. In addition, some airlines increased flights types pandemic, increasing emissions. give reasonable data basis for industry formulate reduction policies.

Language: Английский

Citations

23