Understanding atmospheric pressure is vital, newsroom meteorologist Justin Ballard said, because those giant H’s and L’s representing high and low air pressure systems on a weather map are meaningless ...

People whose homes are near busy highways may be able to reduce their blood pressure by running an air purifier with a HEPA filter, a study found. Just a month of air filter use cut systolic blood ...

Poor air quality remains a concern Friday in the Houston metro area because a stagnant dome of high atmospheric pressure is trapping ground-level ozone pollution. The ingredients for unhealthy air ...

Air that’s polluted by traffic exhaust can spike people’s blood pressure sharply almost as soon as they begin traveling, according to a study that monitored people in real time on busy roadways. The ...