Inorganic nitrates-nitrite, carbon and carbon dioxide, and sulfur registration review; draft ecological risk assessment and endangered species effects determination; notice of availability.

This notice, issued by the US Environmental Protection Agency (EPA) announces the availability of the agency's draft ecological risk assessment for the registration review of inorganic nitrates-nitrites, carbon and carbon dioxide, and gas cartridge uses of sulfur, and opens a public comment period on this document. Comments and input may address, among other things, the agency's risk assessment methodologies and assumptions, as applied to this draft risk assessment. Interested parties may also provide suggestions for mitigation of the risk identified in the draft ecological risk assessment. As part of the registration review process, the Agency has completed a comprehensive draft …