서울시 구로구에서 COVID-19 발생 전ㆍ후 초미세먼지(PM2.5) 농도 변화에 따른 인구집단 노출평가

• 영문명: Evaluation of Population Exposures to PM2.5 before and after the Outbreak of COVID-19
• 발행기관: 한국환경보건학회
• 저자명: 김동준(Dongjun Kim) 민기홍(Gihong Min) 최영태(Yongtae Choe) 신준섭(Junshup Shin) 우재민(Jaemin Woo) 김동준(Dongjun Kim) 신정현(Junghyun Shin) 조만수(Mansu Jo) 성경화(Kyeonghwa Sung) 최윤형(Yoon-hyeong Choi) 이채관(Chaekwan Lee) 최길용(Kilyoong Choi) 양원호(Wonho Yang)
• 간행물 정보: 『1. 한국환경보건학회지』제47권 제6호, 521~529쪽, 전체 9쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2021.12.31

영문 초록

Background: The coronavirus disease (COVID-19) has caused changes in human activity, and these changes may possibly increase or decrease exposure to fine dust (PM2.5). Therefore, it is necessary to evaluate the exposure to PM2.5 in relation to the outbreak of COVID-19. Objectives: The purpose of this study was to compare and evaluate the exposure to PM2.5 concentrations by the variation of dynamic populations before and after the outbreak of COVID-19. Methods: This study evaluated exposure to PM2.5 concentrations by changes in the dynamic population distribution in Guro-gu, Seoul, before and after the outbreak of COVID-19 between Jan and Feb, 2020. Gurogu was divided into 2,204 scale standard grids of 100 m×100 m. Hourly PM2.5 concentrations were modeled by the inverse distance weight method using 24 sensor-based air monitoring instruments. Hourly dynamic population distribution was evaluated according to gender and age using mobile phone network data and time-activity patterns. Results: Compared to before, the population exposure to PM2.5 decreased after the outbreak of COVID-19. The concentration of PM2.5 after the outbreak of COVID-19 decreased by about 41% on average. The variation of dynamic population before and after the outbreak of COVID-19 decreased by about 18% on average. Conclusions: Comparing before and after the outbreak of COVID-19, the population exposures to PM2.5 decreased by about 40%. This can be explained to suggest that changes in people’s activity patterns due to the outbreak of COVID-19 resulted in a decrease in exposure to PM2.5.

목차

I. 서 론

II. 연구 방법

III. 결 과

IV. 고 찰

V. 결 론

감사의 글

Conflict of Interest

References

키워드

COVID-19 particular matter (PM2.5) dynamic population population exposure