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Air quality warning throughout NYC

NEW YORK (PIX11) — An air quality health alert was issued Tuesday for the New York City metropolitan area and the lower Hudson Valley, according to the New York State Department of Environmental Conservation.

The warning remains in effect until Tuesday 11:00 p.m.


Authorities warn of high concentrations of ground-level ozone, which is caused by chemical reactions between sunlight and car and industrial exhaust fumes.

Although ozone is a colorless gas, in high concentrations it causes cloudy skies and can impair visibility, officials say.

To reduce exposure, people should consider limiting strenuous outdoor physical activity and staying indoors. Anyone experiencing symptoms such as shortness of breath, chest pain or cough should see their primary care doctor.

Ozone levels generally decrease at night.

NYCEM has also updated its air quality guidelines. New protocols and measures, depending on the severity of air quality issues, may include:

  • Improving communication and outreach to vulnerable populations
  • Monitoring and tracking impacts on critical services and infrastructure
  • Distribute masks to the population
  • Adaptation of school operations
  • Restriction of church services and outdoor events

Friday marks one year since New York City was covered in a health-threatening haze due to smoke from Canadian wildfires. Zachary Iscol, director of New York City’s Emergency Management Agency, said this season could also be an active wildfire season because there are many very dry areas in Canada right now.

New York residents can sign up for current air quality alerts from the DEC or call the toll-free Air Quality Hotline (1-800-535-1345) for the latest information.

Ben Mitchell is a digital content producer from Vermont who has covered both local and international news since 2021. He joined PIX11 in 2024. You can find more of his work here.