Posted: Friday, July 6, 2012 --- 8:34p.m.

MADISON, Wis. (AP) -- This week's record high temperatures are causing toxic blue-green algae blooms in many Wisconsin lakes, streams and ponds.

The Department of Natural Resources says people should be on the lookout for water that looks like pea soup, or that contains green, blue, white, red or brown scum.

WISC-TV reports the DNR is advising people to stay out of water that looks suspicious and make sure children do not swim in or drink water that's affected.

The most common symptoms of blue-green algae poisoning in humans are rashes, gastrointestinal pain and respiratory irritation. Pets are also at risk.

Copyright 2012. The Associated Press.