Indoor pollution in India contribute from 22 to 52% air pollution: UNEP
It said every day around 93 percent of the world's children under the age of 15 years breathe air that is so polluted it puts their health and development at serious risk.
India’s Indoor air quality may be worse than it is outdoors
The contribution of indoor air pollution is estimated to vary between 22 and 52 percent, according to a UNEP study which said emissions from household cooking and heating will need to be reduced to greatly improve air quality.