What are two causes of indoor air pollutants?

The two causes of indoor air pollutants are as follows:

• Insufficient ventilation due to poor construction practices

• Using cooking appliances such as wood-stoves that give off too much smoke is also a cause for indoor air pollutants.

Indoor air pollution refers to dust, gases and dirt inside the buildings that have a polluting effect on the indoor air quality.

For more relevant articles refer to the links given below:

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