Now, household items too can turn pollutants

Indoor pollution is just as deadly as outdoor pollution, states a new study published in the journal, Science. The study has found that chemicals in household cleaning products, perfumes, paints and even deodorants are causes of indoor air pollution. The chemical vapours emitted by these products are roughly equivalent to the vapours emitted by the transportation sector.

These vapours are known as “volatile organic compounds” and react with sunlight to form ozone pollution and also react with other chemicals to form particles that can enter one’s lungs.

Pollution experts state that these household products contribute to indoor pollution because they are petroleum based.

N. Raveendhar S., a pollution expert, says, “Inorganic pollutants such as nitric acid or sulfur dioxide are contained in products of combustion. These components are also carcinogenic just like some outdoor pollution components. These VOCs contribute to particulate matter, commonly known as PM 2.5 that is known to affect one’s lungs adversely.”

A well ventilated house can neutralise some of this pollution.

“Initially, indoor pollution was only a factor in rural areas where wood or charcoal is burnt for cooking fuel. Now the use of beauty products has also come into the picture. If one tends to use these products in a closed room with no ventilation, these particles will be suspended in the air without circulation causing reactions. It could be very harmful for asthmatic patients,” warns Dr Hari Kishan, a general physician.

Indoor air pollution causes allergies and irritation of eyes, skin and throat. The study asks people to be wary of the products they use.

Dr T. Unnikrishnan, a general physician, says it’s better to use natural products and keep rooms well ventilated. “We need to raise awareness about indoor pollution these days. Leadfree paint and products are being encouraged.”