Iowa environmental officials are taking an unusual position for people charged with protecting the citizens of the state: “Better sorry than safe.”
No, that’s probably not the message you heard from Mom or Dad.
But it is the effect of the Iowa Department of Natural Resources (DNR) position not to follow tougher rules on water quality to guide warnings to beachgoers.
DNR has decided that if toxins in water reach a risk level suggested by the U.S. Environmental Protection Agency (EPA) as right for a warning, that is on a need-to-know basis, and you as a beachgoer have no need to know before you dive in, or before your child or dog splashes around, maybe drinks a little of the lake in the process.
Iowa is sticking with a more relaxed standard, of 20 micrograms of the microsystin toxin per liter, instead of the EPA-recommended 8 microgram level.
The Gazette story by Erin Jordan comes almost a year to the day since an Iowa Policy Project report by Carolyn Buckingham, Mary Skopec and myself showed how little the state is doing to address increasing problems with cyanobacteria, or blue-green algae, in Iowa waters. The report noted DNR testing had shown increasing numbers of beach advisories from 2009 through 2016, and increases in the number of lakes with advisories against swimming, due to microsystin levels — 17 of the 39 monitored beaches (graph below). And that was recorded under the weaker standard of 20 micrograms per liter.
Climate change and increased nutrient runoff contribute to increased algal blooms at the heart of the problem. If the number of advisories and lakes affected were to rise even more because of tougher standards, that likely would drive more Iowans to push for changes in policy to address the causes.
Safe might not be the top priority.
David Osterberg is lead environmental researcher and former executive director of the nonpartisan Iowa Policy Project, and professor emeritus of occupational and environmental health at the University of Iowa. email@example.com