4 a . wa iM Aeok ed ee ime , bee csee 2 sCk a ea: BR‘ tar ete ak aneoe a cal bee i pats he delet ele date, 146 6 3 —O NBU NBU “4 ————) 0.2 ppm TAM"! . Yo.06 1 ere 4 0.30 5 O () TAM-2 [— 0.4 LAKE TEMPERATURE 0.380 TAM 30mo' 08 0.11 . OG > Wg 0.4 “20.2 00.09 TAM- ARG o9c 19 JAN 1966 | worn o6Cc 19 JAN 1966 wrarerere | bosesteil | 20 a NBU { TAM-| 0.08 1 FS 24 0.4 ve 5 ARG ARG INDIANA 12¢ 19 JAN I966 10 km 2 eeeen ©» eee eee L I5C 19 JAN 1966 Da) 10 km Fic. 110.—Weather and pollution maps for Chicago area, 19 January 1966 INDIANA