...Pollution by petroleum wastes from refineries has also affected thestreams studied...
Artie L. Metcalf 「Fishes of Chautauqua, Cowley and Elk Counties, Kansas」
...In Butler County there are four refineries on the Walnut watershedupstream from the area surveyed...
Artie L. Metcalf 「Fishes of Chautauqua, Cowley and Elk Counties, Kansas」
...Metzler (1952) noted that "fish-kills"occurred from the mid-1940's until 1952 in connection with wastesperiodically discharged from these refineries...
Artie L. Metcalf 「Fishes of Chautauqua, Cowley and Elk Counties, Kansas」
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