LENEXA, Kan. (AP) — Federal regulators have reached settlements with two agricultural storage and supply businesses to resolve alleged violations of clean air regulations. The U.S. Environmental Protection Agency said in a news release Thursday that it inspected Midland Marketing Co-op Inc. and Troy Elevator Inc. in response to accidental releases of anhydrous ammonia that injured workers. Anhydrous ammonia is corrosive to the skin, eyes and lungs. Exposure may result in injury or death. Midland owns a facility in Palco, Kansas. Troy Elevator owns facilities in Bloomfield and Blakesburg, Iowa.