Table le Liguid Miik - New York City 1958 Sampling Sr70 * Month ppe/g Ca 5299 /sr90 January 3062 2 0.37 206 2 0.5 February 4094 2 0538 1le7 2 043 Marsh 3.20 2 0.27 April 4.09 2 6.30 Bel 2 5.6 May 3.92 2 Oh 4.6 2 teh June July August September October November December * Extrapoliated tc midpsint ¢<f sampling pericd. - 86 =