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ozone 222 stratospheric 219 radiation 80 water 77 nitrogen 49 stratospheric ozone 48 Chlorine 47 tropical 40 hydrogen 34 winter 31 lead 28 ozone layer 26 emissions 24 Sulfate 20 sulfuric acid 19 weather 19 Carbon dioxide 18 Northern Hemisphere 18 environment 17 Nitrous oxide 17 pollution 16 solar radiation 15 oscillation 14 summer 14 climate change 14 skin 13 |
Chloride 13 global warming 12 CO2 11 precipitation 10 soil 10 antarctica 9 Nitrate 9 Uranium 7 salt 7 Fluoride 7 crops 7 Sulfur Dioxide 6 Southern Hemisphere 6 Melanoma 6 Irradiation 6 Chlorophyll 6 Acetone 6 Propane 6 sodium 6 halocarbons 5 Methyl bromide 5 Iodine 5 cancer 5 Pacific Ocean 5 Radium 5 |