Through the supervision of five typical families of Xinzhou, and based on its testing results,it elaborates the actuality of indoor air pollution,main source,damage of pollution as well as the supervising methods,so as to bring forward some concrete methods of protecting indoor pollution and reducing indoor pollution.

As the economic development and the life standard improvement, indoor pollution has been paid more attention.

The source and harms of indoor pollution are summarized,the incorrect recognition of indoor pollution is clarified,and control methods for indoor pollution are introduced.

Because the indoor air pollution problem is serious more and more, this paper surveyed the complexion of the indoor air pollution, and educed that the contents of SO2、NO2 were higher than the others in the lampblack pollution, and also the contents of SO2、formaldehyde were higher in the tobacco smog pollution, while the contents of formaldehyde were higher in the indoor decoration pollution.

Effects of plants on the absorption of indoor pollutants;

Reactions among indoor pollutants relate directly or indirectly on the ozone.

Numerical simulation of the air exchange process of indoor pollutant;

In recent years, with the development of economy, the extensive fitting-up craze has appeared in the city and the indoor pollutant problem is outstanding day by day.

Some researches have proved that indoor niton pollution is the second main cause of lung cancer next to smoking.