Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
PM10 Conc (A) and number of days exceeding the standard PM10 Conc (B), and the prevalence of childhood asthma in Seoul, 2011-2016. PM10, particulate matter; Conc, concentration; ASR, age-standardized prevalence rate (%); treatment, rate of experiences of received medical treatment for asthma during the last 12 months; PM10 excess, number of on which the standard PM10 Conc was exceeded.
