Massage therapists are among the consumers who tend to choose natural and organic products. New research indicates that when it comes to laundry products, the more natural the better.
Researchers at the University of Washington have found that air vented from machines using the top-selling scented liquid laundry detergent and scented dryer sheet contains hazardous chemicals, including two that are classified as carcinogens, according to a university press release.
The research builds on earlier work that looked at what chemicals are released by laundry products, air fresheners, cleaners, lotions and other fragranced consumer products. Manufacturers are not required to disclose the ingredients used in fragrances, or in laundry products.
For the new study, which focuses on chemicals emitted through laundry vents, researchers first purchased and pre-rinsed new, organic cotton towels, the press release noted. They asked two homeowners to volunteer their washers and dryers, cleaned the inside of the machines with vinegar, and ran full cycles using only water to eliminate as much residue as possible.
At the first home, they ran a regular laundry cycle and analyzed the vent fumes for three cases: once with no products, once with the leading brand of scented liquid laundry detergent, and finally with both the detergent and a leading brand of scented dryer sheets. A canister placed inside the dryer vent opening captured the exhaust 15 minutes into each drying cycle. Researchers then repeated the procedure with a different washer and dryer at a second home, the press release noted.
sis of the captured gases found more than 25 volatile organic compounds, including seven hazardous air pollutants, coming out of the vents. Of those, two chemicals—acetaldehyde and benzene—are classified by the Environmental Protection Agency as carcinogens, for which the agency has established no safe exposure level.
“These products can affect not only personal health, but also public and environmental health. The chemicals can go into the air, down the drain and into water bodies,” lead author Anne Steinemann, said.
The findings were published online this week in the journal Air Quality, Atmosphere and Health.