State, Federal Officials Issue Smog Alerts

The triple H’s of summer – heat, haze and humidity – are expected to settle over the region today as temperatures soar into the 90s today.

The hot, sticky weather prompted both federal and state environmental officials to issue air quality warnings in the state yesterday. While the federal Environmental Protection Agency issued air quality warnings for coastal Connecticut, the state’s Department of Environmental Protection has issued its own air quality warnings yesterday for several counties in the state, including Middlesex and northern New Haven counties. The DEP stated the ozone level in the state today was unhealthy for those with air quality sensitivities.

While the National Weather Service is predicting a high of 90 degrees yesterday, the Connecticut Weather Center puts today’s high temperature at 95 degrees–Branford's temperature is predicted to reach according to our meteorologist James Boyle.

In 2010 there were 18 “unhealthy ozone” days in Connecticut between June 19 and Sept. 2. On such days, those with respiratory illnesses, such as asthma, could experience more severe symptoms as a result of poor air quality, according to the DEP.

Exposure to elevated ozone levels can cause serious breathing problems, aggravate asthma and other pre-existing lung diseases, and make people more susceptible to respiratory infection, EPA officials say.  When smog levels are elevated, people should refrain from strenuous outdoor activity, especially those with respiratory problems, they say.

Ground-level ozone (smog) forms when volatile organic compounds and oxides of nitrogen interact in the presence of sunlight. Cars, trucks and buses give off the majority of the pollution that makes smog. Power plants that use fossil fuels emit pollution that can form smog. Gasoline stations, print shops, household products like paints and cleaners, as well as lawn and garden equipment also add significantly to the ozone smog.

The EPA has the following instructions for how the public can help reduce smog:

•  Use public transportation, car-pooling and/or combining trips.
•  Refuel cars at night to reduce gasoline vapors getting into the air during the daytime when the sun can cook the vapors and form ozone.
•  Avoid the use of small gasoline powered engines, such as lawn mowers, chain saws, and leaf blowers.

The EPA provides real-time ozone data and air quality forecasts. Click here to access the data and to sign up for free air quality alerts.