Comparison of Phase States of PM2.5 over Megacities, Seoul and Beijing, and Their Implications on Particle Size Distribution.
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ABSTRACT:
SUBMITTER: Song M
PROVIDER: S-EPMC9775198 | biostudies-literature | 2022 Dec
REPOSITORIES: biostudies-literature
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Comparison of Phase States of PM<sub>2.5</sub> over Megacities, Seoul and Beijing, and Their Implications on Particle Size Distribution.
Song Mijung M Jeong Rani R Kim Daeun D Qiu Yanting Y Meng Xiangxinyue X Wu Zhijun Z Zuend Andreas A Ha Yoonkyeong Y Kim Changhyuk C Kim Haeri H Gaikwad Sanjit S Jang Kyoung-Soon KS Lee Ji Yi JY Ahn Joonyoung J
Environmental science & technology 20221202 24
Although the particle phase state is an important property, there is scant information on it, especially, for real-world aerosols. To explore the phase state of fine mode aerosols (PM<sub>2.5</sub>) in two megacities, Seoul and Beijing, we collected PM<sub>2.5</sub> filter samples daily from Dec 2020 to Jan 2021. Using optical microscopy combined with the poke-and-flow technique, the phase states of the bulk of PM<sub>2.5</sub> as a function of relative humidity (RH) were determined and compared ...[more]
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