Implications of the Findings of the Expedition to Investigate the Ozone Hole Over the Antarctic: Joint Hearing Before the Subcommittees on Environmental Protection and Hazardous Wastes and Toxic Substances of the Committee on Environment and Public Works, United States Senate, One Hundredth Congress, First Session, October 27, 1987 |
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abundance aerosol Airborne Antarctic Ozone aircraft altitudes Anderson Antarctic ozone hole Antarctic stratosphere Antarctica atmospheric chlorine calculated cause CFC emissions CFCs Chairman change in ozone chemical containment vessel Chemical Manufacturers Association chemically perturbed region chemistry chlorine concentrations chlorine monoxide chlorine oxide chlorofluorocarbons column ozone decade Dobson Units emission rates environment expedition Fluorocarbon gases global ozone greenhouse effect ground-based Halley Bay Halon increase laboratory latitudes levels loss of ozone McElroy MCFARLAND McMurdo measurements meteorological methane mid-latitudes molecules Montreal Protocol NASA nitric acid nitrogen NOAA observed occur oxide ozone amounts ozone depletion ozone layer ozone loss Palmer Station particles percent phenomenon polar stratospheric clouds polar vortex ppbv predicted Punta Arenas question reactions reduction Rowland satellite Scenario scientific scientists Senator BAUCUs Senator CHAFEE Senator STAFFORD stations stratospheric ozone Subcommittees surfaces temperatures Thank total ozone U.S. SENATOR understanding vortex WATSON Wilkniss