Air Quality
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NWS changing when and why it issues air quality alerts
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The high heat and humditiy of summer are just around the corner but there are some changes to the air quality forecast you should know about.
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GenOn Alexandria plant fined $280,700 for air quality violations
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An Alexandria coal-burning power plant scheduled for closure in October has been fined about $280,700 for violating air-quality laws.
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America's dirtiest cities: Washington/Baltimore ranks #16
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If you ever have trouble breathing or find the air a little stale in the Washington and Baltimore area, you're not alone, Forbes reports.
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House approves bill to delay, scrap EPA rules
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The Republican-controlled House has taken another swipe at the government's ability to control air pollution, passing a bill that would delay or scrap rules to reduce mercury and other harmful air emissions.
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Northern Virginia is 6th smoggiest place in the U.S.: Report
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District-area residents had nearly a month's worth of unhealthy air-quality days this summer, according to a new report.
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Smell smoke? Huge swamp fire burns in Virginia
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A large Virginia swamp fire is causing quite a stink. The smell of smoke has reached the D.C. area. See the NASA photos. And check out these videos.
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Miserable air quality from D.C. heat wave, visualized (GRAPHIC)
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NASA just wrapped up an air-quality study that had planes flying low over D.C. and Baltimore this July. What were the results?
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Code Red air quality - a quick explainer
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What does Code Red Air Quality really indicate about the air we breath when we step outside?
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NASA continuing air quality flights over Baltimore-Washington Parkway
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NASA is continuing low-level flights over the Baltimore-Washington traffic corridor to help improve satellites' ability to measure air quality.
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D.C. heat wave: Another scorcher in store
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The Washington region is under a heat advisory from noon until 8 p.m. tonight as temperatures could reach triple digits. It’s also a code orange air quality day, which means the air will be unhealthy for sensitive groups.
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'Code Orange' air quality expected in D.C.; some groups at risk
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Choke on your air, D.C. The lack of strong wind, lots of sunlight and workday traffic is creating an odious stew of pollutants stretching all along the East Coast.
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Low-flying planes buzz Maryland in July for DISCOVER-AQ project
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In July, the coming weeks, a giant swath of Maryland will look and sound like Gravelly Point Park, with air quality-sensing airplanes buzzing the ground as low as 1,000 feet.
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NASA to conduct air quality study
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NASA says it will be sending aircraft over the Baltimore-Washington region beginning next week to help improve how satellites monitor air quality.
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