Scientists say a cause of pollution is under our . Everyday household items such as toothpaste, deodorant, and polish contain volatile that lead to pollution. Dr Brian McDonald, an air-pollution researcher at the US National Oceanic and Atmospheric Administration, conducted into what creates pollution in our homes. He was to find that household items now cause as pollution as cars, trucks and other . Dr McDonald said that as "the transportation sector gets , these other sources...become more important".
The researchers looked at organic compounds (VOCs) in a of household items. VOCs react with sunlight to form ozone pollution. This goes into the environment and gets trapped in our house or apartment. VOCs interact with chemicals to form particles in the that can damage our lungs. Dr McDonald said we should regulate household more tightly to reduce their on our health. He gave a , saying: "The things I use in the to get ready for work are comparable to that come out of the tailpipe of my car."