Levels, Sources and Risk Assessment of Carbonaceous and Organic Species Associated with PM2.5 in Two Small Cities of Morelos, Mexico DOI Creative Commons
Brenda Liz Valle-Hernández, José de Jesús Figueroa-Lara, Miguel Torres-Rodríguez

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 15(12), P. 1496 - 1496

Published: Dec. 15, 2024

A study of carbonaceous species, polycyclic aromatic hydrocarbons (PAHs), and nitro-PAHs associated with PM2.5 was conducted to assess their carcinogenic potential health risks in the two main cities State Morelos: Cuernavaca Cuautla. The annual median concentrations organic carbon (OC) elemental (EC) were 6.2 µg m−3 0.6 m−3, respectively, whereas Cuautla, OC averaged 4.8 EC m−3. OC/EC ratios, total aerosols (TCA), primary (POC) secondary (SOC), as well reactive (ECR) estimated, also showing prevalence emissions such biomass burning. seventeen PAHs recommended by EPA twelve measured using gas chromatography–mass spectrometry. sum 9.7 ng 11.2 where high-molecular-weight compounds most dominant; sums 287 pg 432 respectively. Diagnostic ratios applied identify sources PAH emissions, suggesting that fuel combustion is major contributor both sites, followed coal burning agricultural activities. benzo(a)pyrene equivalent 2.2 for sites. lifetime excess cancer risk from inhalation estimated range 1.8 × 10−4 2 1.5 similar values observed other urban regions globally.

Language: Английский

Characteristic Trends and Source Shifts of n-Alkanes in a Multi-Year Study: Insights from Gas-Particle Partitioning in a Central Chinese City DOI
M. Kong,

Yanyan Hao,

Ruixin Xu

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 488, P. 137445 - 137445

Published: Jan. 29, 2025

Language: Английский

Citations

0
Levels, Sources and Risk Assessment of Carbonaceous and Organic Species Associated with PM2.5 in Two Small Cities of Morelos, Mexico DOI Creative Commons
Brenda Liz Valle-Hernández, José de Jesús Figueroa-Lara, Miguel Torres-Rodríguez

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 15(12), P. 1496 - 1496

Published: Dec. 15, 2024

A study of carbonaceous species, polycyclic aromatic hydrocarbons (PAHs), and nitro-PAHs associated with PM2.5 was conducted to assess their carcinogenic potential health risks in the two main cities State Morelos: Cuernavaca Cuautla. The annual median concentrations organic carbon (OC) elemental (EC) were 6.2 µg m−3 0.6 m−3, respectively, whereas Cuautla, OC averaged 4.8 EC m−3. OC/EC ratios, total aerosols (TCA), primary (POC) secondary (SOC), as well reactive (ECR) estimated, also showing prevalence emissions such biomass burning. seventeen PAHs recommended by EPA twelve measured using gas chromatography–mass spectrometry. sum 9.7 ng 11.2 where high-molecular-weight compounds most dominant; sums 287 pg 432 respectively. Diagnostic ratios applied identify sources PAH emissions, suggesting that fuel combustion is major contributor both sites, followed coal burning agricultural activities. benzo(a)pyrene equivalent 2.2 for sites. lifetime excess cancer risk from inhalation estimated range 1.8 × 10−4 2 1.5 similar values observed other urban regions globally.

Language: Английский

Citations

1