Follow up samples collected in the Illinois River last week showed no evidence of the algal toxin, microcystin, including samples collected near Hennepin and Marseilles. Previous samples taken from these locations have detected microcystins above 4 parts per billion (ppb) draft health advisory established by U.S. EPA . It is believed that the heavy rains received in Northern Illinois contributed to the improved river conditions.
Illinois residents should remain vigilant, while utilizing our rivers, lakes and streams. Remember to avoid contact with water which:
• looks like spilled, green or blue-green paint
• has surface scums, mats, or films
• is discolored or has green-colored streaks, or
• has greenish globs suspended in the water below the surface.
Do not let pets drink from water with any of the above characteristics.
Algal toxins sometimes produced by blue-green algae can cause sickness or other adverse health effects in people and pets, depending on the amount and type of exposure. In the event you com in contact, or are concerned that you have been exposed to these algal toxins rinse off with clean, fresh water as soon as possible.