Analysis of An Indoor Amount of Environmental Tobacco Smoke (ETS) with Quantified Particulate Matter

This research aimed was to establish an indoor amount of environmental tobacco smoke (ETS) by calculating particulate matter less than 2,5 mu m (PM 2,5) as the predictor of the ETS in hospitalities across the environment of the college.. We established smoking conditions in business establishments and analyzed internal quantities of PM 2.5 at 20 internet cafes, 38 pubs, and 20 billiard rooms employing a sidepak am510 direct-reading handheld real-time display from October 2014 to December 2015. In 65% of internet coffee shops and 85% of billiard shelters in 2015, cigarettes were found. The incidence in pubs that had been officially banned from smoking declined from 33,3 percent in 2014 to 10 percent in 2015. The total 2015 concentration of PM 2.5 in Internet cafes, bars, and pool sheds was 98.6 mu g/ m(3), 29.6 mu g/ m(3), and 135.4 mu g/ m(3), respectively. PM 2.5 levels in online coffee shops and billiard rooms were 2 to 2.7 times higher than the 24-hour intake level (50 mu g/m(3)) for outside PM 2.5 established by the Korean Ministry of Environment. While a prohibition on smoking was placed on internet cafes and bars, smoking was already occurring in those areas. For the effectiveness of law-based efforts to protect employers and employers' wellbeing from second-hand exposure to smoke, more strict compliance is essential. A cigarette prohibition should be enforced in billiards rooms as soon as possible.