The influence of COVID-19 pandemic on PM_2.5 air quality in Northern Taiwan from Q1 2020 to Q2 2021.

ABSTRACT: The study aimed to investigate the PM_2.5 variations in different periods of COVID-19 control measures in Northern Taiwan from Quarter 1 (Q1) 2020 to Quarter 2 (Q2) 2021. PM_2.5 sources were classified based on long-range transport (LRT) or local pollution (LP) in three study periods: one China lockdown (P1), and two restrictions in Taiwan (P2 and P3). During P1 the average PM_2.5 concentrations from LRT (LRT-PM_2.5-P1) were higher at Fuguei background station by 27.9% and in the range of 4.9-24.3% at other inland stations compared to before P1. The PM_2.5 from LRT/LP mix or pure LP (Mix/LP-PM_2.5-P1) was also higher by 14.2-39.9%. This increase was due to higher secondary particle forma

SUBMITTER: Nguyen TT 

PROVIDER: S-EPMC10208270 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature