NASA, which hopes someday to monitor the Earth's environment from space, has pollution problems of its own and is not doing enough to control them, Congress' investigative arm says.

Improper management of hazardous wastes created pollution problems "that must be corrected to prevent shutdown of some facilities" by federal or state authorities, the General Accounting Office said Tuesday.These include "leaking underground storage tanks, exposed asbestos and mercury spills," at some of the National Aeronautics and Space Administration's nine centers, the GAO said.