The majority of everyday chemical exposure in people occurs through the air we breathe in our homes, offices, schools and other indoor environments. These airborne chemicals are commonly referred to as volatile organic compounds (VOCs) and are used to manufacture and maintain building materials, interior furnishing, cleaning products and personal care products. The U.S. Environmental Protection Agency (EPA) and various researchers have conducted studies that reveal two key findings:
- VOCs are common in indoor environments.
- Their levels indoors may be between two and 1,000 times higher than outdoors.
There may be anywhere from 50 to hundreds of individual VOCs circulating through indoor air at any time. Some may produce objectionable odors if the concentration of VOCs is at low levels, but many have no noticeable smell. Many VOCs are irritants and can cause headaches; eye, nose and throat irritation; and dizziness. Long-term exposure to certain VOCs may lead to chronic diseases including cancer. The products used to build and furnish our indoor environments can have a significant impact on indoor air pollution levels.
Our UL GREENGUARD Certification program has established test methods and emission limits for a variety of product groups, including: