Despite one of the largest turnouts of people supporting a public health policy in recent years, the Allegheny County Board of Health today indefinitely tabled proposed new guidelines for toxic air pollution levels.

With only one dissenting vote, the board agreed to hold off on new guidelines until the state Department of Environmental Protection comes up with its own new policy.

Health Department officials said the state process could take as long as two years.

About 30 residents and representatives of groups like Clean Water Action and the Group Against Smog and Pollution showed up in support of the regulations, most of them from the Ben Avon area, which sits near the highly industrialized Neville Island.