| OCR Text |
Show Aug. 5, 1993 reduces chemicals that deplete ozone Hill " Emissions Hill AFB ODC Ha Ion 1211 434'632 500000 DQ 11 H Freon 113 a 300000 O vt ozone-depletin- Freon 12 D Freon 400000 -- Hill AFB is well on its way to eliminating the use g of the large majority of its chemicals. In an effort to protect the ozone layer, Air Force Chief of Staff, Gen. Merrill McPeak, directed the Air g Force to stop purchasing Class I chemicals (the most damaging type). While much of the country was caught off guard, Hill specialists were already progressing with a plan to reduce ozone depleters. "We were already working toward the guidelines originally established by the Montreal Protocol, g which were to eliminate the most common chemicals by the year 2000," said Steve g Chemical ElimiRasmussen, Hill's nation program manager. "Now we've just accelerated that plan to meet the 1994 deadline. Our goal is to beat that deadline." The stratospheric ozone layer floats about 20 miles above the earth, forming an invisible shield. Ozone (03) is formed when, the energy from the sun causes ordinary diatomic oxygen (02) to combine with other oxygenated compounds. This highflying layer of ozone filters out harmful ultra-violradiation that would otherwise reach the Earth's surface. According to many scientists, however, that shield is weakening. Scientists say the ozone layer's demise is primarily due to an infestation of chlorofluorocarbons, or CFCs. These compounds, commonly used as refrigerants in cars and household appliances, are chemically reacting with ozone, turning it back into ordinary oxygen. T. Ha Ion 1301 Ha Ion 1202 " W. Harris Environmental Management Directorate by David El 3 Hilltop Times 1,1,1 Trkhlorethane 176,892- 200000 113,776 (est.) o j3 a. 100000 ozone-depletin- 1993 1992 1991 air-quali- ty ozone-depletin- Ozone-Depletin- et BORROW UP TO Rasmussen said he and the other planners knew eliminating ODCs from Hill's inventory would be neither cheap nor easy. Not only would it require changing equipment and processes, but it would require finding suitable substitutes, if a substitute could be found at all. which amount According to estimates, solvents to 90 percent of ODCs used could be replaced at d less than the total cost of the $44 million made "It program. good economic sense to first attack the area where we had the greatest return, that being solvents," Rasmussen said. Solvents, mostly used to degrease and clean aircraft parts, are currently being replaced with detercleaning systems. These gent and water-base- d washers work much like an ordinary household dishwasher. Rasmussen said the washers will recover their $13 million price tag in less than three years in reduced hazardous waste disposal costs and the cost of purchasing new solvent. Replacing refrigerants will not be as easy. Current systems use Freon as a refrigerant. one-thir- high-pressu- re $200 CASH can get CASH with your personal - cnecK for up 10 insianiiyi With our two locations, your not far from I N5TMM I QJ5 ri 1 Rasmussen said the base is looking at several posunits. sible technologies to replace the Freon-baseHalons, used to extinguish fires in aircraft and in buildings with expensive electronic equipment, have also been put on the ODC hit list. Halon systems have been preferred because they put out a fire without damaging the equipment they are deployed to save. In buildings, halon fire extinguishing systems are being disabled but left in place alongside newly installed water sprinkler systems. Rasmussen said until a substitute for halons is found, sprinklers will help put out the fires. Aircraft halon systems will remain in use because there is no substitute that will meet existing specifications. Rasmussen said he expects to reduce the amount of ODCs released into the air by almost 75 percent by the end of the year. d ATI INSTANTLY! a You Since there is no practical substitute for Freon, the systems must be completely retrofitted or replaced. 577ia lh I ttLA22 ' J here to help you. BCWW Check Expressions is Come in and see for yourself, TELL VI th$ UM MIKE SENT times: Monday Thursday -- r.M. iu:uu a.m.-&:j- u & ScrtUfHay 1 0:00 A.M. -- 2:00 FVMT "laay c TJCPlVESSions CttECK 713 No. Main Layton 5633 So. 1900 West - Rov &46-z- e miMiimilliimMmiiiiHmwiwmiBmwHwimHiMMHBii 1 825-644- 5 MMtnttfinntumtfMnnMtmHuiuiHi UIMIIiUMiiMiUllllliilMllMIIIWillHMittltMW? |
