Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content


Description:The young carp shown swimming in this historic 1936 photograph, were displaying signs of oxygen hunger by “gulping” air through the lake surface interface. The picture was taken at Lake Merion, near Brownton, Minnesota on February 3 of that year, and offered as evidence that pollution of the water had occurred, which caused the oxygen level in the water to dramatically decline.
This is one of a series of instructional images used by the Minnesota Board of Health to train its public health workers. The focus of the images and the training, was on protecting water supplies from bacterial contamination due to incorrect disposal of waste, such as sewage, that might foul ground water, rivers, lakes, and streams.
High Resolution: Click here for hi-resolution image (11.89 MB)
Content Providers(s):CDC/ Minnesota Department of Health, R.N. Barr Library; Librarians Melissa Rethlefsen and Marie Jones
Creation Date:1936
Photo Credit:
Links:Minnesota Health Department
Minnesota Health Department; R.N. Barr Library
CDC – Nat. Center for Infectious Diseases; Water-Related Diseases
CDC Organization
Skip Navigation Links.

Skip Navigation Links.
Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.