House Democrats were joined Wednesday by 23 Republicans in approving legislation that will regulate a widespread, persistent, and toxic chemical linked with cancer and other serious health problems. Opponents argue the bill represents a de facto ban on a chemical needed to make bullet-proof vests, surgical instruments, semiconductor chips, and a variety of other products. The PFAS Action Act of 2021 was approved on a 241-183 vote, with all of the Nays being cast by Republicans. All 218 House Democrats supported the measure that now goes to the Senate where its prospects are very much in doubt. Five of the six representatives who did not vote were Republicans. “Per- and polyfluoroalkyl substances (PFAS)” are a group of chemicals used in a variety of products to increase their resistance to water and heat damage, as well as to make them more durable. There are more than 9,200 such chemicals that have …