sr-9Q Concentrations in milk, near Salt Lake City, Utah,

0.00

re |
eb

= cies
Jani, 1961 ‘62

@., ~~.

0.25

ep

rb

br

0.50

re yop

0.75

—— PREDICTED BY PATHWAY
*-« OBSERVED (PENDLETON)

pb

1.00

pre

CONCENTRATION (,Ci/ )

410-4

é

at

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