WASHINGTON — An Environmental Protection Agency panel that advises the agency’s leadership on the latest scientific information about soot in the atmosphere is not listed as continuing its work next year, an E.P.A. official said.

The 20-person Particulate Matter Review Panel, made up of experts in microscopic airborne pollutants known to cause respiratory disease, is responsible for helping the agency decide what levels of pollutants are safe to breathe. Agency officials declined to say why the E.P.A. intends to stop convening the panel next year, particularly as the agency considers whether to revise air quality standards.

By Lisa Friedman, The New York Times.