x
uploads/nicotin.jpg

nicotin n.【化學】煙堿,尼古丁,煙草素。

nicotinamide

Secondhand smoke contains around 4000 types of harmful substances and the concentrations of these are even higher than that in the mainstream smoke . for instance , secondhand smoke contains 2 times more nicotin , 3 times more tar stimulant , 5 times more carbon monoxide and 50 times more carcinogenic substances 二手煙含有4000多種的有害物質,往往比主流煙還要多,例如:有2倍的尼古丁, 3倍焦油剌激物, 5倍的一氧化碳和50倍的致癌物質。