“Green” children's products not always PFAS-free, warns new study

PFAS and “green” assurances

Waterproof or stain-resistant products labeled with “green” language, such as “nontoxic” or “eco-friendly,” as well as products with green certifications, were found to have similar concentrations of fluorine, a PFAS indicator, to waterproof or stain-resistant products without “green” labeling. Some waterproof products with the green certifications Greenguard Gold and Oeko-Tex Standard 100, two certifications designed to reduce chemical risks to human health, were shown to contain evidence of PFAS.

“PFAS are a large class of substances and not all of them are currently regulated in the framework” of Oeko-Tex Standard 100, Dominik Kinschel, a product manager for Oeko-Tex, said in a statement to EHN. “Therefore, it is possible that a PFAS substance which is not regulated within [Oeko-Tex Standard 100] can be found on a [Oeko-Tex Standard 100] certified article.”

Additionally, he said, Oeko-Tex has the goal to phase out all PFAS chemicals for apparel textiles over the next few years.

Shaider said that while some products that contained the PFAS indicator were labeled “green” and “nontoxic,” green certification can still be a useful tool. Such certifications are often focused on keeping out other harmful chemicals, like pesticides, but not focused on PFAS specifically.

“Certifiers are becoming more aware of concerns about PFAS chemicals,” Schaider said. “[Certifications] are useful for helping consumers avoid certain types of products. But, as of now, they're not as helpful for helping consumers avoid PFAS in textile items.”

Schaider posited that most of the fluorine showing up in these items is added intentionally, though, she said, it is possible that the contamination is unintentional via manufacturing equipment.

PFAS in children’s products are particularly worrisome because, as a type of endocrine-disrupting chemical—meaning it disrupts or mimics proper functioning of hormones—PFAS have a profound impact on still-developing bodies, said Schaider. PFAS have been linked to delayed brain development and immune systems problems in children.

An array of PFAS in products

Most surprising to Schaider was the presence of long-chain PFAS in some of the products tested. Long-chain PFAS are an older version of PFAS chemicals that stay in the human body longer than newer, “short-chain” PFAS chemicals. Manufacturing of long-chain PFAS, like PFOA (perfluorooctanoic acid), for example, has been phased out in the U.S.

However, multiple products tested by the researchers, some of which were labeled with “green” language, contained PFOA. Schaider thinks the PFOA in these products is likely from international sources, such as China, where PFOA manufacturing is still widespread.

Some products tested also contained PFAS precursors—chemicals that break down or are converted into PFAS once they degrade in the environment or enter the human body. The amount of PFAS precursors found in the products was often higher than the amount of named PFAS chemicals detected.

Many PFAS precursors are volatile, meaning they can enter the air more easily than PFAS themselves. These volatile chemicals are more likely to end up in household dust and expose consumers through dust inhalation.

What consumers can do 

Consumers looking to avoid PFAS in children’s products can steer clear of water- and stain-resistant products, said Schaider. “Look for items that might be achieving that with a different type of barrier, like a more physical barrier, rather than relying on a coating,” she said.

The Silent Spring Institute has developed a smartphone app, called Detox Me, to help consumers make choices that impact their chemical exposure.

However, Schaider said, the research supports the need for comprehensive PFAS legislation in the U.S. “It shouldn't come down to individual consumers to have to think about toxic chemicals when they're purchasing items for their home.”

Banner photo credit: Ben Wicks/Unsplash