pesticides

U.S. Geological Survey

Researchers with the U.S. Geological Survey have been monitoring pesticides in rivers and streams around the country for 20 years. They just released their findings, and they found there are levels of some pesticides that could be a concern for bugs and fish.

For example, they found the insecticide fibronil at levels that could cause harm. That chemical disrupts insects’ nervous systems.

The study, "Pesticides in U.S. Streams and Rivers:  Occurrence and trends during 1992-2011” is published in the Environmental Science and Technology journal. 

Wes Stone, a hydrologist with the USGS, says some pesticides have been phased out and others have come on the market, and you can see that directly reflected in the water.

“What it shows is to stay on top of what’s in the environment, we’re going to have to constantly evolve and keep looking at the newest ones and evolving new methods to sample for them," he says.

But Stone says their study probably underestimates potential risks to aquatic life. He says there are more than 400 different pesticides in use, but he says funding is limited, so his agency only tests for a fraction of those pesticides in rivers and streams.

Sarah Cwiek / Michigan Radio

A Michigan environmental group says gardeners should be careful when buying plants – they may be inadvertently harming bees.

The Ann Arbor-based Ecology Center was part of a study looking at the pesticide content in plants bought from major home and garden stores in 18 cities across North America.

Of four plants purchased at a metro Detroit Home Depot, two tested positive for neonicotinoids, a class of pesticides known to be toxic to bees.

Teddy Llovet/Flickr

Everyone loves a comeback story, and this is a good one. Just 13 years ago, there was only one osprey nest in southern Michigan. Today, there are at least 49.

The large raptor, known as the “fish hawk,” began disappearing from the Great Lakes region in step with increasing use of DDT and other pesticides. Scientists have found that these chemicals cause thinning in osprey eggshells.

Lice nit on hair
Gilles San Martin - wikimedia

It's something a lot of parents dread. Lice in your kid's hair.

Pesticides in shampoo form is one way to tackle the problem, but some people go pesticide-free.

Kyle Norris filed a report on Rapunzel's Lice Boutique in Ann Arbor for the Environment Report. I tagged along with her with a camera when she visited a family getting a treatment and we put together this slide show: