The Effects of Particulate Matter Alert on Urban Park Visitation in Seoul, Korea: Using Segmented Regression.

ABSTRACT: To reduce the health burden from particulate matter (PM), the Korean government implemented a nationwide PM₁₀ (particles less than 10 µg/m³ in diameter) alert system in 2015. The policy was intended to reduce PM exposure by advising people to refrain from outdoor activities on highly polluted days. The present study aimed to estimate the effect of the PM₁₀ alert system on people's daily outdoor activity patterns using urban park (specifically, Children's Grand Park) visitation data from Seoul, South Korea, from 2014-2019. Segmented regression was fitted to estimate whether the number of visitors to the park decreased on the days with PM₁₀ alerts. PM₁₀ concentration of 80 µg/m³, the cut-off point for a "Bad" alert, was set as

SUBMITTER: Choi Y 

PROVIDER: S-EPMC9693038 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature