Finding F-1146

“Against Korean Ministry of Environment 24-h guidelines (NO2: 60 μg/m3; PM2.5: 35 μg/m3; no general TVOC limit), exceedances occurred in 16.7 % of NO2 samples and 66.7 % of PM2.5 samples; no TVOC exceedances were observed.”

Environmental monitoring and smoking exposure before and after the designation of non-smoking areas in indoor sports facilities (2026). Environ Anal Health Toxicol. Page 4. CKB 1606

Structure

Source: Tobacco smoke (secondhand smoke)
Factor: Particulate matter (PM₂.₅ and PM₁₀)
Study design: before-and-after monitoring in billiard halls and screen golf ranges in Korea: total volatile organic compounds, nitrogen dioxide and PM2.5 measured before and after the venues were designated non-smoking, against the 24-hour guidelines of the Korean Ministry of Environment (class 3)
Effect: share-above 66.7
Averaging time: 24 h

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.