After evidence of pesticides killing off pollinators surfaced in 2016, scientists went on a quest to see if pesticides were seeping into anything else. Now, in an unprecedented study, the U.S. Geological Survey and University of Iowa reported findings of neonicotinoids—a class of pesticide used to kill off insects—in treated drinking water, marking the first time these chemicals have ever been identified.
The researchers behind the new study, published in the journal Environmental Science and Technology Letters, took samples from 48 streams that feed the Iowa River, a primary source for drinking water throughout the midwest, and found that 63 percent of the samples contained at least one neonicotinoid compound. The samples were taken shortly after corn and soy were planted in nearby fields.
Even more concerning, samples taken from local tap water and the water treatment plant at the University of Iowa showed three main neonicotinoids, proving that filtration practices are not enough to purify the drinking water. The water was collected over the course of seven weeks, but higher concentrations are likely to occur within one to three days of planting.
"Having these types of compounds present in water does have the potential to be concerning," Gregory LeFevre, a coauthor of the study told The Washington Post. "But we don't really know, at this point, what these levels might be."
There is not enough research on human health surrounding the ingestion of pesticides, especially over a prolonged period of time. But, in a 2015 study on the impacts of neonicotinoids on human health, scientists found that chronic exposure to high concentrations were not that harmful and showed weak findings. However, in smaller vertebrate animals, the effects can be severe. A 2015 study of the effects of neonicotinoids on wildlife concluded that they may cause neurological and developmental issues.
Though the study was exclusive to Iowa, it could have far-reaching effects on the entire U.S.
"Everything in the watershed is connected," LeFevre said. "This is one of many types of trace pollutants that might be present in rivers."
People across New England witnessed a dramatic celestial event Sunday night.
EcoWatch Daily Newsletter
By David Reichmuth
Over the last month, I've seen a number of opinion articles attacking electric vehicles (EVs). Sadly, this comes as no surprise: now that the Biden administration is introducing federal policies to accelerate the roll out of electric vehicles, we were bound to see a reaction from those that oppose reducing climate changing emissions and petroleum use.
The majority of EVs sold in 2020 were models with a starting price (Manufacturers Suggested Retail Price) under $40,000 and only a fifth of models had a starting price over $60,000.
On Friday, China set out an economic blueprint for the next five years, which was expected to substantiate the goal set out last fall by President Xi Jinping for the country to reach net-zero emissions before 2060 and hit peak emissions by 2030.
The Great Trail in Canada is recognized as the world's longest recreational trail for hiking, biking, and cross-country skiing. Created by the Trans Canada Trail (TCT) and various partners, The Great Trail consists of a series of smaller, interconnected routes that stretch from St. John's to Vancouver and even into the Yukon and Northwest Territories. It took nearly 25 years to connect the 27,000 kilometers of greenway in ways that were safe and accessible to hikers. Now, thanks to a new partnership with the Canadian Paralympic Committee and AccessNow, the TCT is increasing accessibility throughout The Great Trail for people with disabilities.
Trans Canada Trail and AccessNow partnership for AccessOutdoors / Trails for All project. Mapping day at Stanley Park Seawall in Vancouver, British Columbia with Richard Peter. Alexa Fernando<p>This partnership also comes at a time when access to outdoor recreation is more important to Canadian citizens than ever. <a href="https://www150.statcan.gc.ca/n1/daily-quotidien/200527/dq200527b-eng.htm" target="_blank" rel="noopener noreferrer">Studies from the spring of 2020</a> indicate that Canadian's <a href="https://www.bnnbloomberg.ca/moneytalk-mental-health-during-covid-19-1.1567633" target="_blank" rel="noopener noreferrer">mental health has worsened</a> since the onset of social distancing protocols due to COVID-19. </p><p>The <a href="https://www.mayoclinic.org/diseases-conditions/coronavirus/in-depth/safe-activities-during-covid19/art-20489385" target="_blank" rel="noopener noreferrer">Mayo Clinic</a> lists hiking, biking, and skiing as safe activities during COVID-19. Their website explains, "When you're outside, fresh air is constantly moving, dispersing these droplets. So you're less likely to breathe in enough of the respiratory droplets containing the virus that causes COVID-19 to become infected."</p><p>TCT leadership took this into consideration when embarking on the accessibility project. McMahon explains that there has never been a more important time to bring accessibility to the great outdoors: "Canadians have told us that during these difficult times, they value access to natural spaces to stay active, take care of their mental health, and socially connect with others while respecting physical distancing and public health directives. This partnership is incredibly important especially now as trails have become a lifeline for Canadians."</p><p>Together, these organizations are paving the way for better physical and mental health among all Canadians. To learn more about the TCT's mission and initiatives, check out their <a href="https://thegreattrail.ca/stories/" target="_blank">trail stories</a> and <a href="https://thegreattrail.ca/wp-content/uploads/2021/01/TCT_2020-Donor-Impact-Report_EN_8.5x14-web.pdf" target="_blank">2020 Impact Report</a>.</p>