If you wish more information you can visit the following web sites:
RER web site will inform you on the society

The following link give information about indoor air pollution, it allows you to understand its origin and the importance to struggle contamination:
- The observatory of indoor air quality will tell you about pollution and anti contamination actions

- UFC web site is full of information. It deals with home pollution.

- The association ADEME give you details on home contamination

The following web sites deal with the risks linked to the pollution.
- Institut de Veille Sanitaire

The following web sites are technical. They will give you the possibility to know more about PCO technology:
- TiO2 et photocatalyse
- Photocatalyse
- Génie Photocatalytique