Ozone Hole Area Minimum Ozone   (million km2) (DU)   Maximum Daily Minimum Daily Year Date Value Date Value 2002 19 September  21.9  20 September 131 http://ozonewatch.gsfc.nasa.gov Waves in the Atmosphere Batter South Pole, Shrink 2002 Ozone Hole December 6, 2002 A greater number of large “planetary sized waves” in the atmosphere that move …

Ozone Hole Area Minimum Ozone (million km2) (DU) Maximum Daily Minimum Daily Year Date Value Date Value 2001 17 September  26.5  22 September 91 http://ozonewatch.gsfc.nasa.gov British Antarctic Survey summary-In 2001 the ozone hole reached an area of over 25 million square kilometres at its maximum in September, and lasted until the summer solstice. Once the …

Ozone Hole Area Minimum Ozone (million km2) (DU) Maximum Daily Minimum Daily Year Date Value Date Value 2000 09 September  29.9  29 September 89 http://ozonewatch.gsfc.nasa.gov     British Antarctic Survey summary-The 2000 ozone hole reached its greatest extent in early September at 28.4 million square kilometres and was the largest ever-recorded ozone hole. It reached …

Sinus problems are usually caused by the inflamed nose which causes difficulty in breathing. The symptoms include headache, facial pain, and a running nose. Humidifiers can be very helpful in fighting off these infections.  This article reviews the best small humidifiers for sinus problems. 5 Best Humidifier For Sinus Problems #1. Levoit Humidifiers for bedroom, …