94 WORLDWIDE EFFECTS OF ATOMIC WEAPONS APPENDIX V Applied Physlology CARBON DIOXIDE CONTENT OF AIR The average data for normal activity in a temperate zoneare given below. (By volume) 1. Water balance: . ' DAILY WATER 95 Inhaled air (dry, at sea level) 202, Alveolar air... 0 INTAKE Exhaled (In liters) i P “reen t 0.03 5.5 4.0 In food, including water of oxidation ............... 1.0 As fluids ..00 eee eee 1.5 Duration of Exposure TOTAL eee eee 2.5 1. Duration of Occupational Exposure: The follow ing figures have been adopted in calculations appertaining to occupational exposur e: Calculations of maximum permissible levels for radioactive isotopes in water have been based on thetotal intake figure of 2.5 liters per day. 8 hr/day, 50 weeks/year. 2. Duration of “Lifetime” for Nonoccupational Exposu re: A conventional DAILY WATER OUTPUT figure of 70 years has been adopted. (In liters) weat le ee, ae lungs 2.0 eee eee. In feces 2... cece eee eee, Urine 2 cece cece ee. 0.5 01 Maximum Permissible Levels for Occupational Exposu re to Certain Isotopes 0.1 1.5 rr 2.5 Torat Water ConTENT oF Boy ............., 30 Maximum Permissible Amount in Body 2. Respiration: Isotope H3 C' (asCO,) (inair)) Na?4 ps2 AREA OF RESPIRATORY TRACT (In square meters) ; . . Respiratory interchange area ....................... 50 Nonrespiratory area (upper tract and trachea to bronchioles) .......................... 20 TOTAL ok eee ere cece eee. RESPIRATORY EXCHANGE Physical Activity At work Notat work 40 hr/week, Hours per Day 8 16 Tidal Air (liters) 1.0° 0.5 Respirations per Minute 20 20 §35 yusi Coe 70 AM . Volume per 8 Hours (cu m) 10 5 I — (ac) Maximum Perraissible Maximum Permissible Concentration in Concentration in Air (24-hr day) Y 1X 10-4 6... 15 10 5 X 190-5 1X tO® 3X 10-8 1X 10-7 3X 10-8 7X 190-9 (cum) 20 , rX1-e@ fool. Ker 1X 10°5 beeen Tt ' 3X 10-8 1X 10-5 eee, Raz26 Volume per Day {uc/cc) 4X 107 ff, 8 X 10-3 2X 104 a 0.18 (thyroid) } 0.3 (body) 1 DE Te (afcc) Drinking Water U?83 (soluble) U?44 (insoluble) S190 + yoo (in equilibrium) $188 Po210 3X108 01 8X 19-12 0.04 0.4 0.008 . 2 X 10-2 8X 19-10 16X10 fd. 410-8 1.5 X 10-8 1.5 X 10+ Pn, 1. 2 X 19-10 8X 10-7 CO 0.005 Lf, .. f