What are the 4 major indoor air pollutants?

The four major indoor air pollutants are as follows:

• Asbestos

• Carbon monoxide

• Formaldehyde

• Cookstoves and Heaters

Indoor air pollution is caused by dust, dirt or gases inside buildings which can cause severe breathing problems that can lead to fatalistic results.

For more relevant articles refer to the links given below:

• UPSC Environment and Ecology Questions
• Conservation of Biodiversity
• UPSC Environment and Ecology