WASHINGTON (AP) -- The Bush administration is considering doing away with health standards that cut lead from gasoline, widely regarded as one of the nation's biggest clean-air accomplishments.

The Environmental Protection Agency said this week that revoking those standards might be justified "given the significantly changed circumstances since lead was listed in 1976" as an air pollutant, claiming that concentrations of lead in the air have dropped more than 90 percent in the past 2 1/2 decades. Battery makers, lead smelters, refiners all have lobbied the administration to do away with the Clean Air Act limits.

But Rep. Henry Waxman, D-Calif., the incoming chairman of the House Committee on Government Reform, called on the agency to "renounce this dangerous proposal immediately," because lead, a highly toxic element, can cause severe nerve damage, especially in children.