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<h2 >Managing Air Quality</h2> <figure class="figure figure--large is-centered"> <div class="figure__media"> <img alt loading="eager" srcset="/sites/default/files/styles/small/public/2017-08/particulate-matter.jpg?itok=T4rYMxlJ 320w, /sites/default/files/styles/medium/public/2017-08/particulate-matter.jpg?itok=cbfrbwDe 325w" sizes="(max-width: 960px) calc(100vw - 4rem), 960px" width="325" height="100" src="/sites/default/files/styles/large/public/2017-08/particulate-matter.jpg?itok=uqCA0kfD"> </div> </figure> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="4eb9859a-d3f2-4bd1-99bd-298ea8d9f5e4" href="/criteria-air-pollutants/process-reviewing-national-ambient-air-quality-standards">Process of reviewing the National Ambient Air Quality Standards</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="5be3b410-7a9e-43fa-8376-ca7f48953448" href="/criteria-air-pollutants/process-determine-whether-areas-meet-naaqs-designations-process">Process to determine whether areas meet the NAAQS</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="a0e58137-d475-4ae8-bfa3-b41c5b0817da" href="/criteria-air-pollutants/process-working-areas-attain-and-maintain-naaqs-implementation-process"><span><span><span><span><span><span><span><span>Process of w</span></span></span></span></span></span></span></span></a><span><span><span><span><span><span><span><span><a href="/criteria-air-pollutants/naaqs-implementation-process">orking with areas to attain and maintain NAAQS</a></span></span></span></span></span></span></span></span></li> </ul> </div> <div> <h2 >Air Quality Standards</h2> <figure class="figure figure--large is-centered"> <div class="figure__media"> <img loading="eager" srcset="/sites/default/files/styles/small/public/2017-08/carbon-monoxide.jpg?itok=QAZeNA-m 320w, /sites/default/files/styles/medium/public/2017-08/carbon-monoxide.jpg?itok=Pljk-QMX 325w" sizes="(max-width: 960px) calc(100vw - 4rem), 960px" width="325" height="100" src="/sites/default/files/styles/large/public/2017-08/carbon-monoxide.jpg?itok=K9xVeH5L" alt="carbon-monoxide"> </div> </figure> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="805c2539-c7bb-49da-90c2-230b0a32fa36" href="/criteria-air-pollutants/naaqs-table">Summary Table of the Current NAAQS</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="2dae7ce0-9bbf-4546-9ea4-b605d6ca52e6" href="/criteria-air-pollutants/information-pollutant">Information by pollutant</a></li> </ul> </div> <div> <div class="box box--highlight"> <h2 class="box__title"> Criteria Air Pollutant Information </h2> <div class="box__content"> <ul> <li><a href="/ground-level-ozone-pollution">Ozone</a></li> <li><a href="/pm-pollution">Particulate Matter</a></li> <li><a href="/co-pollution">Carbon Monoxide</a></li> <li><a href="/lead-air-pollution">Lead</a></li> <li><a href="/so2-pollution">Sulfur Dioxide</a></li> <li><a href="/no2-pollution">Nitrogen Dioxide</a></li> </ul> </div> </div> </div> </div> </div> </div> <div class="box box--related-info"> <h2 class="box__title"> Additional Resources </h2> <div class="box__content"> <ul> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="48407a46-5ddd-497b-bdfc-178d055c91cb" href="/air-emissions-inventories">Air Emissions Inventories</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="a14ce313-d554-4c22-83c4-42ebaa61442a" href="/green-book">Greenbook — Nonattainment Areas</a></li> <li><a href="/air-quality-implementation-plans/tools-state-implementation-plan-sip-status">State Implementation Plan Status Tools</a></li> <li><a href="/air-quality-management-process">Air Quality Management Process</a></li> <li><a href="/clean-air-act-overview">Clean Air Act</a></li> <li><a href="/visibility">Visibility and Haze</a></li> <li><a href="https://www.airnow.gov/">AirNow — Air Quality Forecast</a></li> <li><a href="/air-trends">Air Quality Trends</a></li> <li><a href="/haps">Hazardous Air Pollutants</a></li> <li><a href="/indoor-air-quality-iaq">Indoor Air Quality</a></li> <li><a href="/caa-permitting">Permitting Under the Clean Air Act</a></li> <li><a href="/title-v-operating-permits/current-regulations-and-regulatory-actions">Regional Consistency</a></li> </ul> </div> </div> </article> </div> <div class="l-page__footer"> <div class="l-constrain"> <div class="l-page__footer-contact"><a href="/criteria-air-pollutants/forms/contact-us-about-criteria-air-pollutants">Contact Us</a> to ask a question, provide feedback, or report a problem.</div> <div class="l-page__footer-last-updated">Last updated on October 22, 2024</div> </div> </div> </div> </main> <footer class="footer" role="contentinfo"> <div 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