Ozone exposure may lead to cardiovascular problems

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PHOENIX (CBS5/CBS) -

A new study shows healthy adults exposed to ozone for two hours developed changes associated with cardiovascular problems.

The ailments included vascular inflammation, a reduced ability to dissolve blood clots and changes in the nervous system.

Ozone is created when pollutants react with sunlight.

The World Health Organization estimates two million people die every year because of exposure to air pollution.