PMID- 31862076
OWN - NLM
STAT- MEDLINE
DCOM- 20200507
LR  - 20200507
IS  - 1001-0742 (Print)
IS  - 1001-0742 (Linking)
VI  - 88
DP  - 2020 Feb
TI  - Comparative study on water-soluble inorganic ions in PM(2.5) from two distinct 
      climate regions and air quality.
PG  - 349-360
LID - S1001-0742(19)31467-6 [pii]
LID - 10.1016/j.jes.2019.09.010 [doi]
AB  - Recently, air quality has significantly improved in developed country, but that 
      issue is of concern in emerging megacity in developing country. In this study, 
      aerosols and their precursor gas were collected by NILU filter pack at two 
      distinct urban sites during the winter and summer in Osaka, Japan and dry and 
      rainy seasons in Ho Chi Minh City (HCMC), Vietnam. The aims are to investigate 
      the contribution of water-soluble inorganic ions (WSIIs) to PM(2.5), 
      thermodynamic characterization and possible formation pathway of secondary 
      inorganic aerosol (SIA). The PM(2.5) concentration in Osaka (15.8 mug/m(3)) is 
      lower than that in HCMC (23.0 mug/m(3)), but the concentration of WSIIs in Osaka 
      (9.0 mug/m(3)) is two times higher than that in HCMC (4.1 mug/m(3)). Moreover, SIA 
      including NH(4)(+), NO(3)(-) and SO(4)(2-) are major components in WSIIs 
      accounting for 90% and 76% (in molar) in Osaka and HCMC, respectively. 
      Thermodynamic models were used to understand the thermodynamic characterization 
      of urban aerosols. Overall, statistical analysis results indicate that very good 
      agreement (R(2) > 0.8) was found for all species, except for nitrate aerosol in 
      HCMC. We found that when the crustal species present at high amount, those 
      compositions should be included in model calculation (i.e. in the HCMC 
      situation). Finally, we analyzed the characteristics of NH(4)(+)- NO(3)(-)- 
      SO(4)(2-) system. A possible pathway to produce fine nitrate aerosol in Osaka is 
      via the homogeneous reaction between NH(3) and HNO(3), while non-volatile nitrate 
      aerosols can be formed by the heterogeneous reactions in HCMC.
CI  - Copyright (c) 2019. Published by Elsevier B.V.
FAU - Huy, Duong Huu
AU  - Huy DH
AD  - Faculty of Food Science and Technology, Ho Chi Minh City University of Food 
      Industry, 140 Le Trong Tan Street, Tan Phu District, Ho Chi Minh City, Viet Nam. 
      Electronic address: huydh@hufi.edu.vn.
FAU - Thanh, Le Tu
AU  - Thanh LT
AD  - Faculty of Environment, University of Science, Vietnam National University-Ho Chi 
      Minh City, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam.
FAU - Hien, To Thi
AU  - Hien TT
AD  - Faculty of Environment, University of Science, Vietnam National University-Ho Chi 
      Minh City, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam.
FAU - Takenaka, Norimichi
AU  - Takenaka N
AD  - Graduate School of Humanities and Sustainable System Sciences, Osaka Prefecture 
      University, 1-1 Gakuen-cho, Naka-ku, Sakai-shi, Osaka 599-8531, Japan.
LA  - eng
PT  - Journal Article
DEP - 20191021
PL  - Netherlands
TA  - J Environ Sci (China)
JT  - Journal of environmental sciences (China)
JID - 100967627
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Ions)
RN  - 0 (Particulate Matter)
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Aerosols
MH  - *Air Pollutants
MH  - *Air Pollution
MH  - China
MH  - Cities
MH  - *Environmental Monitoring
MH  - Ions
MH  - Japan
MH  - *Particulate Matter
MH  - Seasons
MH  - Vietnam
MH  - Water
OTO - NOTNLM
OT  - PM(2.5)
OT  - Thermodynamic model
OT  - Water-soluble inorganic ions
EDAT- 2019/12/22 06:00
MHDA- 2020/05/08 06:00
CRDT- 2019/12/22 06:00
PHST- 2019/05/14 00:00 [received]
PHST- 2019/09/06 00:00 [revised]
PHST- 2019/09/11 00:00 [accepted]
PHST- 2019/12/22 06:00 [entrez]
PHST- 2019/12/22 06:00 [pubmed]
PHST- 2020/05/08 06:00 [medline]
AID - S1001-0742(19)31467-6 [pii]
AID - 10.1016/j.jes.2019.09.010 [doi]
PST - ppublish
SO  - J Environ Sci (China). 2020 Feb;88:349-360. doi: 10.1016/j.jes.2019.09.010. Epub 
      2019 Oct 21.