New York State, New Jersey, and Pennsylvania are under air quality advisories due to high ground-level ozone levels.

The New Jersey Department of Environmental Protection issued an air quality alert for Middlesex County, including South Brunswick and East Brunswick.

The alert is effective for Tuesday night, with predicted high ozone levels making it difficult for some people to breathe outdoors.

Residents, especially those with respiratory diseases like asthma, are urged to avoid strenuous activities.

Humidity levels are expected to rise with temperatures in the upper 70s to mid-80s.

Pennsylvania issued an air quality alert for Berks, Lehigh, and Northampton counties.

The National Weather Service recommends staying indoors, minimizing outdoor activities, reducing pollution, and staying informed.

The air quality index is forecast to be above 100 in some towns.

Advance Local Weather Alerts used machine learning to issue specific county alerts.

Rising humidity levels and expected rain showers may help improve air quality.