An air quality health advisory is in effect for Long Island and the NYC Metro regions until 11 p.m. Friday due to elevated ground-level ozone, according to the New York State Department of Environmental Conservation.
The advisory covers Nassau and Suffolk counties, including the Riverhead area, as well as New York City, Westchester and Rockland counties.
State officials said air quality levels in outdoor air are expected to exceed an air quality index value of 100 for ozone. The AQI is used to correlate levels of different pollutants on a single scale; higher values indicate a greater health concern…