IRIS Weighs Adapting Cancer Risk Analysis Methods For Non-Cancer Studies

Responding to years of stakeholder calls, EPA’s influential Integrated Risk Information System (IRIS) program is moving to develop a unified approach for calculating risk estimates, launching a pilot project to apply methods designed to estimate cancer risks to non-cancer assessments -- though the effort is still in its early days, an agency official says. “We are getting experience in maturing [and] evolving our dose-response methods,” Kris Thayer, director of EPA’s Chemical and Pollutant Assessment Division who oversees IRIS, told the...