These waste-to-energy facilities were designed with advanced air pollution control systems similar to those used now in all " waste-to-energy " plants that have reduced dioxin emissions these plants to 10 grams of toxic equivalent dioxins for the entire U.S. Unfortunately , when Mayor Rudy Giuliani came into office he scrapped these plans mainly because of opposition from some organizations , based on the emissions of incinerators in the 1980s , before Environmental Protection Agency regulations had been implemented .