Guigue Catherine, Martinot P. L., Chifflet Sandrine, Guyomarch L., Dominutti P. A., Jaffrezo J. L., Ngo-Duc T., Bui V., Vu C. T., Uzu Gaëlle, Tedetti Marc, Mari Xavier. (2025). Particulate matter and carbonaceous content in aerosols from Haiphong and Hanoi cities, Northern Vietnam. Atmospheric Pollution Research, 16 (11), 102638 [16 p.]. ISSN 1309-1042.
Titre du document
Particulate matter and carbonaceous content in aerosols from Haiphong and Hanoi cities, Northern Vietnam
Année de publication
2025
Auteurs
Guigue Catherine, Martinot P. L., Chifflet Sandrine, Guyomarch L., Dominutti P. A., Jaffrezo J. L., Ngo-Duc T., Bui V., Vu C. T., Uzu Gaëlle, Tedetti Marc, Mari Xavier
Source
Atmospheric Pollution Research, 2025,
16 (11), 102638 [16 p.] ISSN 1309-1042
Airborne particulate matter (PM) and its carbonaceous content (elemental carbon, EC and organic carbon, OC, including polycyclic aromatic hydrocarbons, PAHs) were investigated in Haiphong and Hanoi, two major cities in the Northern Vietnam, aiming at elucidating the relative importance of local and regional atmospheric pollution. The monthly average ranges of PM2.5 were 14-37 mu g m(-3) in Haiphong, and 35-102 mu g m(-3) in Hanoi, respectively, during the period 2020-2023. EC, OC and PAH concentrations annually averaged 2.1 +/- 1.3 mu g m(-3), 4.9 +/- 3.1 mu g m(-3) and 4.4 +/- 2.6 ng m(-3) in Haiphong PM10 from Oct. 2012 to Oct. 2013, and 1.3 +/- 0.9 mu g m(-3), 9.1 +/- 6.2 mu g m(-3) and 5.9 +/- 5.8 ng m(-3) in Hanoi PM2.5 from Oct. 2019 to Dec. 2020, respectively. Seasonal variations were observed, with higher values during the dry season (winter) compared to the wet season (summer), as expected according to monsoon meteorological conditions. However, spatial variations and correlations between EC, OC, and PAHs, along with other markers of human activities (such as levoglucosan, secondary inorganic aerosols and metals), emphasized city-specific influence of local emission sources versus those transported from distant locations. Hanoi, highly urbanized, appeared to be yearly dominated by the local emissions while Haiphong, less urbanized and located near the sea, allowed to highlight seasonal variations in emission origin. While PM values exceeded up to 15 times international air quality recommendations, health risk assessment related to inhaled PAHs, in line with previous results relying on metals, remained low to moderate.
Plan de classement
Sciences du milieu [021]
;
Pollution [038]
;
Urbanisation et sociétés urbaines [102]
Description Géographique
VIET NAM ; HAIPHONG ; HANOI
Localisation
Fonds IRD [F B010094357]
Identifiant IRD
fdi:010094357
