Heat advisory extended until Friday evening, air health advisory issued

A heat advisory for that area was extended until 8 p.m. Friday, the National Weather Service said this afternoon.

Heat index values ​​of around 100 are expected for the next two days, with the highest heat index values ​​in the late afternoon through early evening each day.

An air health advisory is in effect for the Long Island and New York areas Thursday from 11 a.m. to 11 p.m., the State Department of Environmental Conservation said this afternoon.

The pollutant of concern is ozone, the DEC said.

The state issues air quality advisories when DEC meteorologists predict that pollution levels, whether ozone or fine particles, should exceed an air quality index of 100. L ‘IQA was created as an easy way to correlate the levels of different pollutants on a single scale. , with a higher AQI value indicating a greater health problem.

Tomorrow’s AQI for the Long Island area is expected to reach 115, which is considered unhealthy for sensitive groups including young children, those who exercise outdoors, those who participate in work vigorous exteriors and those suffering from respiratory diseases, such as asthma.

Summer heat can lead to the formation of ground-level ozone, a major component of photochemical smog. Automobile exhaust fumes and outdoor emission sources are the main sources of ground-level ozone and are the most serious air pollution problems in the Northeast. This surface pollutant should not be confused with the protective ozone layer in the upper atmosphere.

The town of Riverhead has announced that the senior center at 60 Shade Tree Lane in Aquebogue will be open as a cooling center Thursday from 9 a.m. to 4:30 p.m.

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