Study On The Current Status Of Second-hand Smoke Exposure In Parts Of Public Places And Workplaces In Nanchang City

Background：Tobacco use is one of the most serious and preventable public health issues inthe world．The campaigns of tobacco control have made great progress in the world,WHO Framework Convention on Tobacco Control(FCTC) was implemented on Feb27th2005in the world as the first worldwide legal convention regarding publichealth．Then China signed FCTC on Nov10th2003, and FCTC went into effect inChina on Jan9th2006．FCTC brings in many opportunities and challenges forChinese campaigns of tobacco control．At present, the second-hand smoke exposure in public places in China is stillserious．The risk of second-hand smoke has been disclosed and concerned bydegrees．Most of the scientific researches confirmed that there are no safe exposurelevels for second-hand smoke,even if using ventilation or filter individually orcombining both of them．Somke-free environment is the only effective way to protectnonsmokers' health．The campaigns of tobacco control in public places are launchingin many cities,Nanchang is the capital city of Jiangxi Province,has proclaimed andcarryied out 'interim restrictions in public places in Nanchang' since1995．But fewresearches have been conducted about second-hand smoke exposure in public placesin Nanchang．Furthermore,'the seventh national city games' was holded2011inNanchang,brings opportunities to the study．Objective：The objective of the study was to overally evaluate the second-hand smokeexposure in public places in Nanchang by investigation．It is hoped that this studycould provide evidence to advocate for a smoke-free legislation in Nanchang,Inaddition,potential of creating a smoke-free environment in public places in Nanchangwould be explored．Methods：First,a total number of101public places were surveyed in Nanchang,includingservice halls of government,hospitals and health units,schools,public transportation places．The hospitals and schools were selected by stratified random sampling,governments, health units and public transportation places by conveniencesampling．Then investigation by questionnaire among1870employees and visitors,to understand the second-hand smoke exposure in workplaces and the AM510Personal Aerosol Monitor was used to measure indoor air PM2.5level in publicplaces in the urban area．Meanwhile,number of clients and staff,how many aresmoking and size of hall, were observed and recorded．Through these means,thestatus of Environmental Tobacco Smoke(ETS) could be evaluated in public places．Results：1．In101public places,there was15.8%being smoking forbidden sites,20.8%having ban-smoking signs and18.8%having billboards tobacco control．Investigationby interception showed that among non-smoking employees,the Secondhand smokeexposure rate was37.1%in workplaces,the Secondhand smoke exposure rate ofworkers are different from the types of places(2=25.21, P<0.001),the lowest rate ofhealth units is15.7%．2．The average PM2.5level indoors in the63public places in the urban area was70.26μg/m~3and was34.3%higher than the PM2.5level outdoors．The indoor airPM2.5level is different from the types of places(P<0.05), and the indoor air PM2.5level in public transportation places is the maximum, it numerical value achieved122.98μg/m~3,the schools,governments and health units are lower．The PM2.5level indoors in public places was positive correlated with the number of smokers aswell as the PM2.5level outdoors．Conclusion：1． Exposure to Second-hand smoke in the public places was serious inNanchang,especially in hospitals and public transportation places．It also causedharm for workers' health．2．Employees in public places in Nanchang highly supported completelysmoking ban in the public places,A smoke-free policy of indoors in the public placesis introduced．...