Finding F-1136

“TVOC showed the clearest improvement, falling significantly from 29.2 to 18.4 ppb (p < 0.01).”

Environmental monitoring and smoking exposure before and after the designation of non-smoking areas in indoor sports facilities (2026). Environ Anal Health Toxicol. Page 1. CKB 1606

Structure

Source: Tobacco smoke (secondhand smoke)
Factor: Total volatile organic compounds (TVOC)
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: mean

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.