--subdivision Environmental aspects and Toxicology under individual environmental pollutants, e.g. Copper--Environmental aspects; Copper--Toxicology; and subdivision Health aspects under topics
-- See Also the narrower term Survival Here are entered works on the skills necessary to survive in a hazardous environment usually stressing self-reliance and economic self-sufficiency.
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-- See Also the narrower term Weightlessness Here are entered works on the physiological and psychological effects of environments in which the gravitational forces are zero or markedly lower than the gravity man is accustomed to on earth.Works on the physiological effects of normal gravity and of acceleration expressed in g's are entered under Gravity--Physiological effect.Works on the physics or theory of gravitational forces are entered under Gravitation or Gravity.