...two broad heading air pollution question; Roadside air pollution and regional smog question. The roadside air pollution mainly comes from the diesel oil ...
... produced by industry and motor vehicles. Ozone and smog are created as nitrogen oxides and hydrocarbons react...
... photo by Bobby Yip of Reuters shows the smog today in Hong Kong, which is set to host equestrian ...
... by industry and motor vehicles. Photochemical ozone and smog are created as nitrogen oxides and hydrocarbons react...
...多種化學物質如:焦油,尼古丁,一氧化碳等等有害物質. Dr.eye: The smog produced in smoking contains many kinds of chemical...