Hormone-disrupting herbicide contaminating 25% of continental US rivers, report finds

A recent review of federal records has revealed widespread contamination of continental U.S. rivers by atrazine, a hormone-disrupting herbicide. The report indicates that nearly 25% of all continental U.S. rivers, amounting to approximately 860,000 miles, are polluted with atrazine at concentrations deemed harmful to wildlife and potentially threatening to human health.

Atrazine, an herbicide that has been banned in 60 countries due to its environmental and health concerns, continues to be detected in a significant portion of American waterways. The presence of atrazine at these levels raises serious questions about its ecological impact and potential risks to public health across the nation. Specifically, the contaminated waterways intersect with a substantial portion of the country's water infrastructure. Over 20% of all surface drinking water intakes across the United States draw from these affected rivers. Furthermore, the report highlights that the contamination extends to areas impacting more than 675,000 private and commercial wells, which serve as crucial sources of groundwater. This widespread presence underscores a considerable environmental challenge, impacting both natural ecosystems and human water supplies.

What to watch: Further studies on long-term health impacts and regulatory responses to atrazine contamination.

Editor's note: The article effectively presents the data provided in the source summary.

This article is AI-generated and fact-gated. Original reporting: Guardian Environment