1998-07-13

Everyday Noise - All Day 981787

In the Lunar-Mars Life Support Test Project chamber, crewmembers collected various sound level measures starting with the entry day ceremonies and ending with the welcome home celebrations. Crewmembers recorded sample decibel(A) levels in the 80s and 70s in the mechanical area; 70s and 60s in the common living and work areas; and 50s and 40s in the individual crew quarters. Medical personnel evaluated crewmembers for threshold hearing shifts comparing audiometry readings before and after the chamber experience. The discussion relates the chamber findings to the operational requirements for space stations and planetary habitation, as well as for long duration exposures on Earth.

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