According to the report, which analyzed official air quality data for the years 1998 through 2000, the Houston-Galveston-Brazoria area remained in fifth place nationally for the worst ozone air pollution, a major respiratory irritant that some studies suggest may cause asthma.
32.
He cited a US Public Interest Research Group report that ranked Brayton Point 83rd on a national list of the 100 worst polluting plant with excessive sulfur dioxide emission _ the source of soot, a respiratory irritant that can cause premature death.
33.
I thought of the Salem power plant, exempt from clean-air regulations, which pours respiratory irritants into our air as well as 269 tons a year of deadly mercury, arsenic, lead, and other toxic substances that blow across the harbor into our lungs, water, and food.
34.
Levels of ground-level ozone _ a form of oxygen that acts as a respiratory irritant _ exceeded a federal limit for that pollutant at three state monitors around the area Tuesday, but the TNRCC did not consider today's weather forecast conducive enough to ozone formation for them to issue an " ozone watch " for Houston on Wednesday.
35.
While you are recovering from cold or flu, the best advice is to rest, drink plenty of fluids to help loosen mucus in your nose and chest, avoid tobacco ( a respiratory irritant ), gargle with salt water to relieve a sore throat, use saline nose drops to moisten irritated skin and help loosen mucus, and consider using a vaporizer, which can loosen secretions and make breathing easier.
