A Virginia Senate committee has stubbed out a long-shot effort by antismokers to mandate no-smoking areas in public places in the state.

The vote against a proposed compromise by state Sen. Thomas J. Michie Jr. (D-Charlottesville) was 10 to 5 and appeared to doom the antismoking attempt, even though a House panel narrowly voted Thursday night for a milder version of the measure.

"It looks like we'll kill {the House bill} here," said state Sen. Emilie F. Miller (D-Fairfax), who voted for the compromise in the Senate Education and Labor Committee.

The compromise would have required no-smoking areas to be set aside in restaurants with a seating capacity of at least 40, in state and local government offices and in grocery stores with at least 20,000 square feet.

"This is a very modest attempt to address a very serious health hazard we have," Michie told the panel. After the vote, taken after little discussion, Michie warned the members that they would be hearing from their constituents. "This problem is not going to go away."

The bill passed by the House Health, Welfare and Institutions Committee on a 10-to-8 vote would not apply to restaurants and does not set criminal penalties for violators. It would establish smoke-free zones in state and local government buildings, many grocery stores and jury rooms. It would ban smoking in elevators and emergency rooms and on school buses.