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The production and release to the atmosphere of chlorodifluoromethane (HCFC 22)
Institution:1. Center for Nanoscience and Technology, Amal Jyothi College of Engineering, Koovapally P.O, Kottayam 686518, Kerala, India;2. HLL Lifecare Limited, Corporate R& D Center, Trivandrum, India;3. School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, India;4. Department of Chemistry, Inha Universiy, South Korea;1. Maria Curie Sklodowska University, Faculty of Chemistry, Department of Inorganic Chemistry, M. Curie-Sklodowska Sq. 2, 20-031, Lublin, Poland;2. Maria Curie Sklodowska University, Faculty of Chemistry, Department of Radiochemistry and Colloid Chemistry, M. Curie-Sklodowska Sq. 3, 20-031, Lublin, Poland;3. National Academy of Science of Ukraine, Institute of Surface Chemistry, 17 General Naumov Str., 03164, Kiev, Ukraine;1. Department of Chemistry, College of Science, University of Babylon, Babylon 51002, Iraq;2. Department of Engineering Medical Device Technologies, Hilla University College, Babylon, Iraq;1. Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China;2. Engineering Research Center of None-Food Biomass Efficient Pyrolysis and Utilization Technology of Guangdong Higher Education Institutes, Dongguan University of Technology, Dongguan 523808, China
Abstract:The results of an audited production and use survey for chlorodifluoromethane (HCFC 22) for the years 1980–1991 are reported. Annual production figures for 1970–1979 have also been collected. The time delays for release to the atmosphere for the various uses of this commercial gas are estimated in order to calculate annual emissions. Calculated atmospheric concentrations and trends are compared with available measurements. Uncertainties in calculated parameters are examined relative to assumptions made in the analysis.
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