Table MIIX SAMPLES . Yearly Average Levels for PeriodSeptember (in micromicrocuries per liter Calcium grams/licer Todine!3! sStrontium©? Strontium9 3, 000** 7, 000%* 80.0#* Barium’#0 cesiun!37 Permissible Limits* Recommended by - £9 - NCRPEM for Iifetime Exposure 200,000%* 150, 000#* Cincinnati, Ohio 1.153 4O 65 704 29 ar: New York, N. Y. 1.096 48 39 5.6 25 53 Sacramento, Calif. 1.137 29 2h 5.5 15 57 Salt Lake City, Utah 1.142 113 30 4,2 18 51 St. Louis, Missouri 1.272 144 118 11.2 55 16 * This table was extracted from a press release (Jamary 5, 1959) prepared by the U. S. Public Health Service which maintains a milk monitoring program of their own. ** These limits are the maximum permissible limits for lifetime exposure of population groups to specific radioisotopes in water and are derived from the current recommendations of the National Committee on Radiation Protection and Measurement. The limits have been generally accepted as being equally applicable to milk,