Jan 15, 2015 6:18 PM
NH1 Chief Meteorologist - NH1.com
The New Hampshire Department of Environmental Services has issued an Air Quality Action Day for Cheshire County in effect until 7am Friday.
People with respiratory issues, heart disease, the elderly, children, and teenagers, should limit prolonged or heavy exertion. It is ok to be outside just take more breaks and do less intense activities.
Watch for symptoms such as coughing or shortness of breath. Asthmatics should follow their action plans and keep quick relative medications handy. Those with a heart disease should watch for palpitations, shortness of breath, or unusual fatigue, and contact your health provider if necessary.
The increased threat for problems from air pollution is due to a temperature inversion and lack of any wind. Warm air is less dense than cold air and when you don't have any breeze to mix the air masses together, the warmer air can be found aloft, sitting on top of the cold air. This can lead to low clouds which help to trap in pollutants at the surface. A cold front tracking through Friday Afternoon will kick up the breezes and help to dispurse the stagnant air. This will lead to improvements in air quality.
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