The rationale behind the advisories-- Scientists in West Virginia and across the nation have long suspected that fish contaminated with certain chemicals may pose health risks to those who frequently consume these fish. This concern has heightened as scientists learned more about the levels of contamination in fish and toxicological characteristics of these contaminants. The risk-based approach is consistent with national guidance and with protocols adopted by many other states. The United States Environmental Protection Agency (EPA) encourages states to monitor contaminant levels in fish. West Virginia's approach reflects the intent of US EPA's Guidance for Assessing Chemical Contaminant Data for Use in Fish Advisories. Our activities are also consistent with The Clean Water Action Plan . West Virginia's approach is to communicate information allowing anglers to make informed decisions about eating wild-caught fish.