NYC Air Quality Alert and Heat Advisory

The New York State Department of Environmental Conservation (NYS DEC) and the National Weather Service (NWS) have issued concurrent advisories for the NYC Metropolitan area on May 19 & 20.

The Air Quality Index (AQI) is forecasted to reach 101, categorizing it as “Unhealthy for Sensitive Groups.” It is a risk for those with pre-existing respiratory conditions (such as asthma or COPD), cardiovascular disease, older adults, and those performing strenuous outdoor activities.


Enclosed is the NYC Heat Stress Prevention Plan, developed jointly by COSH, NYC Emergency Management, and the NYC Department of Health and Mental Hygiene. This plan will help you recognize, prevent, and respond to heat-related illnesses.

Heavy sweating, dizziness, confusion, rapid pulse, shortness of breath, hot/dry skin, and, of course, fainting are immediate red flags. Call 911 immediately for all medical emergencies.

Key DCAS Safety Recommendations for Supervisors and Employees to consider during heat advisories:

  • Limit outdoor work when possible, especially during peak heat hours.
  • Encourage frequent breaks in shaded or air-conditioned spaces.
  • Ensure access to drinking water, hydration is essential. Consider Hydration Protocols: Actively encourage colleagues to drink water or electrolyte-replenishing fluids throughout their shifts—do not wait until they feel thirsty. Heat stroke happens quickly.
  • Use buddy systems to watch out for each other – monitor signs of heat stress or breathing difficulty.
  • Be aware of symptoms: confusion, dizziness, cramps, heavy sweating, and fatigue could signal heat exhaustion or worse.
  • For sensitive individuals (those with asthma, heart conditions, or older age), minimize outdoor exposure due to poor air quality.
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