%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Guigue, Catherine
%A Martinot, P. L.
%A Chifflet, Sandrine
%A Guyomarch, L.
%A Dominutti, P. A.
%A Jaffrezo, J. L.
%A Ngo-Duc, T.
%A Bui, V.
%A Vu, C. T.
%A Uzu, Gaëlle
%A Tedetti, Marc
%A Mari, Xavier
%T Particulate matter and carbonaceous content in aerosols from Haiphong and Hanoi cities, Northern Vietnam
%D 2025
%L fdi:010094357
%G ENG
%J Atmospheric Pollution Research
%@ 1309-1042
%K Vietnam ; Air pollution ; Airborne particulate matter ; Carbonaceous content ; Polycyclic aromatic hydrocarbons
%K VIET NAM ; HAIPHONG ; HANOI
%M ISI:001528797700002
%N 11
%P 102638 [16 ]
%R 10.1016/j.apr.2025.102638
%U https://www.documentation.ird.fr/hor/fdi:010094357
%> https://www.documentation.ird.fr/intranet/publi/2025-08/010094357.pdf
%V 16
%W Horizon (IRD)
%X 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.
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