A new global study finds harmful PFAS chemicals in toilet paper and sewage
. Multiply that by the 332 million people in the U.S. and you get more than 19 billion pounds of waste paper being flushed away annually. All by itself that represents a massive disposal and sanitation challenge.there’s even more reason to be concerned: All of that toilet paper, including major brands sold around the world, turn out to be yet another source of PFAS, short for per- and polyfluoroalkyl substances.
The new study, led by Timothy Townsend of the department of environmental engineering sciences at the University of Florida in Gainesville, sampled both commercially available brands of toilet paper and wastewater sludge, looking for the presence of 34 different types of PFAS. They drew their samples of both paper and sewage from four regions around the world: North America, Africa, South and Central America, and Western Europe.
Overwhelmingly, the PFAS that was most present in both toilet paper and in sewage was a species known as 6:2 diPAP, which,, has been linked to impaired testicular function in men. This one chemical represented 91% of all of the PFAS detected in the toilet paper samples and 54% detected in the sewage sludge. Toilet paper usage overall was estimated to contribute up to 80 parts of 6:2 diPAP per billion per person every year to wastewater.
Not every part of the world that was studied had the same results. “The use of toilet paper, and whether it is flushed down the toilet or disposed of with trash, varies regionally as a function of cultural norms, economic means, and sanitation infrastructure,” the researchers wrote. Thus, while per capita use of flushed toilet paper in the U.S., Canada, and Western Europe ranges from 15 to 26 kg per person per year, in Latin America, China, and Africa the total is only two to 10 kg.6:2 diPAP.
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