Carbonaceous aerosol particle sources in Manila North Port and the urban environment

Gill, Touqeer; Kecorius, Simonas; Kandrotaitė, Kamilė; Dudoitis, Vadimas; Madueño, Leizel; Wiedensohler, Alfred; Poulain, Laurent; Vallar, Edgar A.; Galvez, Maria Cecilia D.; Byčenkienė, Steigvilė; Plauškaitė, Kristina

doi:10.5697/TQCH9343

Artykuł - szczegóły

Tytuł artykułu

Carbonaceous aerosol particle sources in Manila North Port and the urban environment

Autorzy

Gill Touqeer , Kecorius Simonas , Kandrotaitė Kamilė , Dudoitis Vadimas , Madueño Leizel , Wiedensohler Alfred , Poulain Laurent , Vallar Edgar A. , Galvez Maria Cecilia D. , Byčenkienė Steigvilė , Plauškaitė Kristina

Wybrane pełne teksty z tego czasopisma

Identyfikatory

DOI

10.5697/TQCH9343

Warianty tytułu

Języki publikacji

Abstrakty

This study addresses the pressing issue of black carbon (BC) pollution in urban areas, focusing on two locations in the Philippines: Quezon City’s East Avenue (QCG, roadside urban environment) and Manila’s North Port. We found that organic aerosol particles (OA) made a greater contribution (80%) to total submicron particulate matter compared to inorganic aerosol (IA) (20%). The mean hourly average equivalent black carbon (eBC) mass concentration at the QCG site (35.97 ± 16.20 𝜇g/m3) was noticeably higher compared to the Port (10.27 ± 5.99 𝜇g/m3), consistent with trends in other Asian cities. Source apportionment analysis identified eBC related to transport emissions (eBCTR) as the predominant contributor to eBC, accounting for 86% at the Port and 80% at QCG. Diurnal patterns showed the highest eBCTR mass concentrations (47.69 ± 9.34 𝜇g/m3) during morning rush hours, which can be linked to light-duty vehicles. Late-night (10 pm–12 am) high concentrations (30.63 ± 8.45 𝜇g/m3) can be associated with heavy diesel trucks at the QCG site. Whereas at the Port site, hourly average higher eBCTR concentration (12.24 ± 3.65 𝜇g/m3) during morning hours (6 am–8 am) can be attributed to the traffic of heavy-duty trucks, trollers, diesel-powered cranes and ships. Compared to the QCG site, a lower eBC concentration at the Port site was favoured by the more open environment and higher wind speed, facilitating better pollutant dispersion. The mean hourly average concentrations of PM2.5 and PM10, measured using an Aerodynamic Particle Sizer, consistently exceeded the air quality standards set by the World Health Organization and the Philippine Clean Air Act at both sites. This study highlights the persisting BC pollution in developing regions and calls for scientifically based strategies to mitigate the air quality crisis.

Słowa kluczowe

equivalent black carbon source apportionment absorption Ångström exponent urban environment air pollution

Wydawca

Polish Academy of Sciences, Institute of Oceanology
Elsevier

Czasopismo

Oceanologia

Rocznik

2025

Tom

No. 67 (1)

Strony

Art. no. 67109

Opis fizyczny

Bibliogr. 100 poz., fot., rys., tab., wykr.

Twórcy

autor

Gill Touqeer

Center for Physical Sciences and Technology (FTMC), Saulėtekio av. 3, LT-10257 Vilnius, Lithuania
Institute of Epidemiology, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany

autor

Kecorius Simonas

simonas.kecorius@ftmc.lt

Center for Physical Sciences and Technology (FTMC), Saulėtekio av. 3, LT-10257 Vilnius, Lithuania

autor

Kandrotaitė Kamilė

Center for Physical Sciences and Technology (FTMC), Saulėtekio av. 3, LT-10257 Vilnius, Lithuania

autor

Dudoitis Vadimas

Center for Physical Sciences and Technology (FTMC), Saulėtekio av. 3, LT-10257 Vilnius, Lithuania

autor

Madueño Leizel

Leibniz-Institute for Tropospheric Research, Permoserstrasse 15, 04318 Leipzig, Germany

autor

Wiedensohler Alfred

Leibniz-Institute for Tropospheric Research, Permoserstrasse 15, 04318 Leipzig, Germany

autor

Poulain Laurent

Leibniz-Institute for Tropospheric Research, Permoserstrasse 15, 04318 Leipzig, Germany

autor

Vallar Edgar A.

ARCHERS, CENSER, De La Salle University, 2401 Taft Ave., Malate, Philippines *corresponding author

autor

Galvez Maria Cecilia D.

ARCHERS, CENSER, De La Salle University, 2401 Taft Ave., Malate, Philippines

autor

Byčenkienė Steigvilė

Center for Physical Sciences and Technology (FTMC), Saulėtekio av. 3, LT-10257 Vilnius, Lithuania

autor

Plauškaitė Kristina

Center for Physical Sciences and Technology (FTMC), Saulėtekio av. 3, LT-10257 Vilnius, Lithuania

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