Atrazine Pollution Threatens 860,000 Miles of US Rivers, New Report Reveals
A new analysis of federal records indicates that the herbicide atrazine contaminates approximately 25% of continental US rivers, affecting 860,000 miles of waterways. This pollution impacts over 20% of surface drinking water intakes and 675,000 wells. The chemical, classified as a probable carcinogen and endocrine disruptor, is linked to reproductive harm in humans and wildlife. Despite being banned in 60 countries, it remains the second most used pesticide in the US, with 70 million pounds sprayed annually. Advocates blame the EPA for inaction due to industry lobbying, while litigation continues over its approval.
Key points
- A review by the Center for Biological Diversity found atrazine in 25% of US rivers, covering 860,000 miles.
- Contaminated waterways affect over 20% of drinking water intakes and 675,000 wells nationwide.
- Atrazine is a probable carcinogen and endocrine disruptor linked to birth defects and reproductive issues.
- The herbicide is banned in 60 countries but remains widely used in the US on crops like corn.
- Five hotspots for contamination include the Chesapeake Bay, Midwest corn belt, and lower Mississippi River.
Background
This report builds on long-standing concerns regarding pesticide regulation in the US. Previous coverage has highlighted environmental restoration efforts, such as the Chalk River project in Hertfordshire, which aims to protect aquatic ecosystems, contrasting with the widespread chemical contamination described in the new US findings. The current report represents the first comprehensive analysis of all EPA atrazine records, highlighting a gap in regulatory action despite known health risks.
Why it matters
The widespread presence of atrazine poses significant public health risks, particularly for developing children and reproductive systems. The failure to regulate this chemical, despite its ban in many other nations, suggests a conflict between public health and agricultural industry interests. Continued exposure could lead to increased disease and environmental degradation across major US water systems.
What to watch
Public health groups plan to resume litigation against the EPA's approval of atrazine once a final plan is published. The EPA and Syngenta have not yet responded to requests for comment regarding the new findings and potential regulatory changes.
Want the full story? Read the original reporting
Read on The Guardian