Search Results for keywords:"NAAQS"

The Environmental Protection Agency (EPA) is proposing to approve revisions to West Virginia's state implementation plan (SIP), which updates the state's incorporation of the EPA's National Ambient Air Quality Standards (NAAQS) and related monitoring methods. These changes span updates made between June 2018 and June 2019, including new reference methods for measuring air pollutants like sulfur oxides, ozone, nitrogen dioxide, and carbon monoxide. This proposal is made under the Clean Air Act, and the EPA is inviting public comment on this update, although they are not seeking input on the specific levels of NAAQS already established in prior proposals.

The Environmental Protection Agency (EPA) has approved a revision to the Feather River Air Quality Management District's rule, which is part of California's plan to manage air quality. This rule addresses fees that must be imposed under the Clean Air Act if an area fails to meet air quality standards for ozone pollution. During a period for public comments, the EPA received input both supporting and criticizing the proposed revisions, particularly regarding legal implications and fee collection procedures. Despite some concerns, the EPA concluded that the rule meets necessary standards and will now incorporate it into the State Implementation Plan, thereby relieving the need for federal oversight in this area.

The Environmental Protection Agency (EPA) proposed a rule to approve part of Louisiana's State Implementation Plan (SIP) for meeting air quality standards related to sulfur dioxide (SO₂), following the Clean Air Act guidelines. The plan addresses interstate air pollution transport, ensuring emissions from Louisiana do not significantly harm air quality in neighboring states. The EPA's review found no significant contribution to air pollution issues in nearby states and supports the proposal to approve Louisiana's SIP. Public comments on this proposal are invited until May 9, 2025.