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Biological Units Become Ill in the Presence of Wastes

It is not possible to adequately protect the health of our nation without addressing infectious-disease [Pg.298]

Although water is not toxic, the high atmospheric concentrations of water vapor encourage the growth of undesirable or dangerous microorganisms on surfaces where condensation occurs. Thus, excess water vapor should also be removed from the atmosphere. [Pg.298]

Products of anaerobic respiration, such as lactate and pyruvate can be toxic to animals. Alcohol, as a product of anaerobic yeast metabolism is toxic to the yeast at concentrations approaching 15% by volume. [Pg.298]

Liquid wastes (urine) frequently contain substances that can be toxic to the organism that produced them. The products of protein metabolism are nitrogen compounds that may have ill effects if not removed. Acids in urine can irritate skin. [Pg.298]

FIGURE 6.4.1 Symptoms common to most subjects exposed for various times to carbon dioxide-air mixtures at 1 atm pressure. (From Billings, C.E., Atmosphere, in Bioastronautics Data Book, J.F. Parker Jr. and V.R. West, eds., NASA, SP-3006 U.S. Government Printing Office, Washington, DC, 1973b, pp. 35-63.) [Pg.298]


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