Air quality health advisory updated

Updated advisory in effect for Friday, July 17

Submitted by the New York State Department of Environmental Conservation

New York State Department of Environmental Conservation Commissioner Amanda Lefton and state Department of Health Commissioner Dr. James McDonald issued an updated air quality health advisory for fine particulate matter for Friday, July 17, due to the impact of smoke from wildfires in Canada. New Yorkers may see visible smoke and hazy skies across the state and spikes in smoke-related pollution.

The updated advisory is as follows:

The Western New York region is forecast to reach “very unhealthy.”

•The Central New York region is forecast to reach “unhealthy.”

•The Long Island, New York City Metro and Lower Hudson Valley, and Eastern Lake Ontario regions are forecast to reach “unhealthy for sensitive groups.”

•The pollutant of concern is fine particulate matter. The advisory will be in effect: 10 a.m. until 11:59 p.m. 

The air quality health advisory regions consist of: Long Island, which includes Nassau and Suffolk counties; New York City Metro, which includes New York City, Rockland and Westchester counties; Lower Hudson Valley, which includes Dutchess, Orange, Putnam, Ulster and Sullivan counties; Eastern Lake Ontario, which includes northern Cayuga, Jefferson, Monroe, Oswego and Wayne counties; Central New York, which includes Allegany, Broome, southern Cayuga, Chemung, Chenango, Cortland, Delaware, southern Herkimer, Livingston, Madison, Onondaga, Oneida, Ontario, Otsego, Tioga, Tompkins, Schuyler, Seneca, Steuben and Yates counties; and Western New York, which includes Cattaraugus, Chautauqua, Erie, Genesee, Niagara, Orleans and Wyoming counties.

Fine particulate matter

Fine particulate matter (PM) consists of tiny solid particles or liquid droplets in the air that are 2.5 microns or less in diameter. PM 2.5 can be made of many different types of particles and often come from processes that involve combustion (e.g., vehicle exhaust, power plants, fires) and from chemical reactions in the atmosphere. 

Exposure can cause short-term health effects, such as irritation to the eyes, nose and throat, coughing, sneezing, runny nose, and shortness of breath. Exposure to elevated levels of fine particulate matter can also worsen medical conditions such as heart disease and asthma. People with heart or breathing problems, older adults, children and teens, pregnant people, and those who exercise or work outdoors may be particularly sensitive to PM 2.5. 

When outdoor levels are elevated, going indoors may reduce exposure. If there are significant indoor sources of PM 2.5 (tobacco, candle or incense smoke, or fumes from cooking) levels inside may not be lower than outside. Some ways to reduce exposure are to minimize outdoor and indoor sources and avoid strenuous activities in areas where fine particle concentrations are high. 

Additional information on PM 2.5 is available on DEC's website and on DOH's website (PM 2.5). A DEC fact sheet about the air quality index is available on DEC’s website or by PDF download.

To stay up-to-date with announcements from DEC, sign up to receive air quality alerts through DEC Delivers: DEC's premier email service. A toll-free air quality hotline (1-800-535-1345) was also established by DEC to keep New Yorkers informed of the latest air quality situation.