Trends in Swim Advisories
Number of Microcystin-Related Swim Advisories Issued at Iowa State Park Beaches
Microcystin-Related Advisories Issued Per Year
Over the span of ten years, the number of annual swim advisories issued for microcystin by the Iowa Department of Natural Resources has increased dramatically.
Number of E. coli-Related Swim Advisories Issued at Iowa State Park Beaches
E. coli-Related Advisories Issued Per Year
Similar to trends in microcystin-related advisories, the number of annual E. coli-related swim advisories issued at Iowa State Park beaches is also trending upward: