Which of the following are causes of indoor air pollution? Select all that are true.

A. respiratory disease conversion to more efficient,

B. clean-burning cook stoves purchase of low - or no-VOC paints,

C. carpeting, and furniture increased ventilation inefficient indoor cookstoves VOCs from paints,

D. carpeting, and furniture people ill from sick-building syndrome

"Carpeting", and "furniture increased ventilation" inefficient indoor cook stoves "VOCs from paints".

Option: C

Explanation:

VOC's are really harmful solvents that are released in the air as the paint dries. The VOC's can create acute health symptoms which may result harmful after some time, like dizziness, headache, and many more. Generally, the long term effects are not that evident, but some VOC's are more carcinogens according to US environmental protection agency. Although, many paint companies claim that their paints are VOC free which is actually false. It might be true that the VOC is not present in the base of the paint, but when the pigment is added to the paint the VOC increases. Hence, carpeting, furniture, cook stoves and VOC's from paints are really harmful indoor pollutants.