“Anvil 10+10 is a pesticide that has been used for mosquito control in Massachusetts and throughout the U.S. The product purportedly contains only Sumithrin and Piperonyl butoxide.
According to the state’s Mosquito Control and Spraying Fact Sheet, the Anvil 10+10 has a half-life of less than one day in the environment, has been determined not to cause an “unreasonable risk” to birds or mammals, and is effective in killing mosquitoes. It also notes that the product is toxic to land-dwelling and water-dwelling invertebrates like beetles and dragonflies as well as fish.
In December of 2020, the Public Employees for Environmental Responsibility (PEER) reported finding that a sample jug of Anvil 10+10 they analyzed was contaminated with PFAS.”