Expertsii » Entries tagged with "chlorofluorocarbons"

Hole In Arctic Ozone Larger Than Ever Before

The ozone layer over the Northern Hemisphere is offering less protection than ever before, the journal Nature reports in the issue published on 2 October.  Researchers discovered that the hole that developed over the Arctic this year was about two million square kilometers in size, similar to the hole that appears each spring over the Antarctic. The ozone layer was discovered in 1913.  It is located in the stratosphere, between 10 to 20 miles above the Earth’s surface, where it absorbs most of the sun’s high frequency ultraviolet light.  Holes in the ozone layer are thought to expose people below to greater levels of cancer and cataract-causing UV radiation.  Nature’s study shows that people in Norway, Greenland, and areas of northern Russia were most at risk. Most holes in the ozone layer … Read entire article »

Filed under: general-news

Asthma Patients Will Need Prescription Inhalers By 2012

In a decision made in 2008, the Food and drug Administration, FDA, is alerting asthma patients who are still using the over the counter inhalers that these inhalers will not be available by the end of this year. These epinephrine inhalers contain a carbon gas, namely chlorofluorocarbons which force the medication into the patient’s airways. Presently it is reported that only Primatene Mist by Armstrong Pharmaceutical is still available in the United States, as other manufacturers have already made the switch to using hydrofluoroalkane, which is an environmentally-friendly way to propel the medication into airways. These new inhalers still treat the same symptoms of asthma, but the new inhalers are only available with a prescription. For patients still using the over the counter epinephrine inhalers, this means that they need to see … Read entire article »

Filed under: health-fitness