The two line charts indicate the scale of Antarctic ozone hole and three categories of relative damaging gases production between 1980 and 2000.
Overall,the size of ozone hole was steady increased over this period.There are two kinds of damaging gases emission surge and one kind gas dropped significantly.
Initially,Antarctica ozone size was under 50 square kilometers in 1980.With Freon,NO2 and H2O2 produced figure growth to 200,105 and 15 metric tonnes respectively in 1985,lead ozone hole size growth to approximately 80 square kilometers in the same year.Furthermore,although Freon produced figure back to around 120 units in 1990,but laters gases still produced higher,make ozone hole in Antarctica surge to nearly 200 square kilometers.
In the last decade,Freon emission was continued decreased but NO2 and H2O2 growth amount.Meanwhile,although Antarctica ozone hole was kept larger,but its growth rate was much lower.