Studies have confirmed that perfluorobutane sulfonic acid is absorbed by crops and can be ingested by humans. The FDA began monitoring PFOS in food in 2019 and has detected them in fruits and vegetables, but has not set any limits.

Chemical fertilizers may also contaminate water with perfluorooctane sulfonate. The amount of perfluorooctane sulfonic acid (a perfluorobutane compound) found in malathion 5EC was more than 100,000 times what the EPA considers safe in drinking water, although there is no set limit for enflurane levels in pesticides.

"There's no better way to poison Americans than contaminating our food supply and soil with perfluorooctane sulfonate, and that's squarely on the EPA," said Kayla Bennett, co-author, and director of science policy at Public Employees for Environmental Responsibility (Peer).

It is not clear why the chemical were added to pesticides, although some in the industry believe they were used as dispersants. In a statement to the Guardian, Corteva Agriscience, the manufacturer of Fearless 2F, said the product did not contain PFAS that were deliberately added.

ECHEMI --- The name originated from the abbreviation of “E-commerce of chemical”.

ECHEMI is a chemical supply chain service company headquartered in Hong Kong, providing chemical raw materials supply, research and analysis marketing, distribution, logistics, e-commerce, and after-sales services.

At present, the product ranges mainly cover paint coating, food nutrition, fine chemical, pharmaceutical, and rubber plastic. In the next decade, ECHEMI will focus on supply chain services, resource optimization, and management efficiency, providing better products and services.