Lake Michigan environmental survey : final report / [edited] by John C. Ayers.

--- -.4** _*LAKE MICH I GAN RADIOLOGICAL SURVEY __*******_
Table A-24
RADIOACTIVITY IN FISH
-- - - - - - - - - - -
1 2 3 4 5
SAMPLE1 SAAPLE WEIGHT COLLECTION ACTIVITY IN PCI/GRAM (% ERROR) 6 7
STATION NUBER (GRAMS) DATE CESIUM-137 ZINC-65 GROSS BETA
qRK*:: 371 6.2289 06-15-69 29.9 ( 6%) 7.7 (26%) 103.7 ( 2%)
C-2* ' 370 4.8412 06-15-69 1.4 (707~) 7.8 (30%) 81.9 ( 2o)
CD-3 * 369 0.7485 06-15-69 9.4 (78%) 26.7 (58%) 83.0 ( 5%)
D-4a': 367 1.2893 06-15-69 0.0 ( 0%) 0.0 ( 0%) 87.7 ( 4Z)
E-2**:- 366 5.5930 06-15-69 4.3 (24%) 6.6 (32%) 96.4 ( 2?)
F-5*-:'; 368 1.7985 06-15-69 8.9 (36% ) 31.7 (22%) 107.3 3%)
ZION'* 372 6.7620 06-15-69 6.7 (14%) 8.9 (20%) 96.9 ( 2%)
1. Nearest station to point of collection.
2. Type of Fish: perch (370, 371), sculpin (366, 368), chub (367, 369, 372)
3. Ash weight.
4. Exact dates of collection are unknown.
5. Number in parentheses is percent error (two standard deviations) of
total radioactivity in ash.
6. Cesium-137 and Zinc-65 radioactivity were corrected for decay back to
the date of collection. Gross beta radioactivity is given for the date
of counting (July-August 1970).
7. 0.0 (0%) signifies that the activity in the sample was less than the
minimum detectable limit.

A-5;7