Breathing for residents across the west coast of the U.S. is becoming increasingly difficult as wildfires continue to spread across large portions of several states, according to news reports.
"Because of the severe wind in the areas involved, exposure to wildfire smoke can even occur if an individual is located several hundred miles away from the actual fire," says pulmonologist Dr. Clayton Cowl, Chair of the Mayo Clinic Division of Preventive, Occupational and Aerospace Medicine.
Although wildfire smoke contains a number of respiratory irritants, such as particulate matter, hydrocarbons and other organic chemicals, Dr. Cowl says probably the greatest health risk is from ultrafine particles that can be inhaled deep into the lungs.
He adds that, unfortunately, use of a standard paper dust mask, while probably better than nothing, really does not fully protect the respiratory tract from most particulate matter that becomes airborne.