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Chinese translation of the abstract by Ting Ting Yao
coauthors were from Brown University and the University of California, San Diego
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Learn more E-cigarettes have been touted as a safer alternative to traditional cigarettes
The new regulation prohibits smoking or lighting any tobacco or nicotine product in indoor , public or collective places, some of the places included in the regulation are restaurants, bars, offices, beaches , amusement parks, shopping malls, stadiums and public places , to name a few
For outdoor air, the World Health Organization says the safe exposure limit for PM2.5 particles is an average of 25 micrograms, or 25 millionths of a gram, per cubic meter of air over a 24-hour period, or average annual levels of 10 micrograms per cubic meter
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