The two graphs illustrate three kinds of damaging gases and how they harm on the size of the ozone hole in Antarctica through 20 years from 1980.
Overall, the production of NO2 and H2O2 exihibited an upward trajectory while Freon gas soared and decreased drammatically. Along with the increasing emissions of these harmful gases, the size of the hole in the North Pole became larger during the 20-year period.
In 1980, roughly 150 tonnes were emissed, Freon was predominant among the three gases, which reached its peak of 200 tonnes in 1985 before decreased noticeably. NO2 and H2O2 were produced 100 tonnes and 0 tonnes respectively and went up to approximately 20 tonnes after 10 years. Because of the appearance of H2O2, the size of the hole in Artarctica got larger from 40k quare kilometres to 75k in 1985 and skyrocketed in size to nearly 200k square kilometres in 1990.
From 1990 to 2000, there was a consistent decline of the production of Freon making it concluded at 20 tonnes. In contrast, NO2 and H2O2 output gradually grew with the amount of NO2 reached around 160 tonnes and H2O2 finished fourfold from 1990. As a result, the size of the ozone hole in Antarctic also increased up to 50k square kilometres at the end of the period.