The graphic represents the levels of pollution according to sulfur dioxide and smoke in London between 1550 and 2000.
Overall, we can see that there was a huge fluctuation amount of pollution of both sulfur dioxide and smoke between the years 1550 and 2000, except in 1950. In addition, there were neither of them, sulphur dioxide and smoke, in 1550.
First of all, we can see that sulfur dioxide made up the largest portion of pollution for all over the years, the tap of a figure stood at just over 800 cubic meters in 1850. On the other hand, the amounts of sulfur dioxide rose sharply between 1600 and 1675 in London. In comparison, this figure dropped dramatically between the years of 1875 and 1925.
Another type of pollution is smoke in London. Pollution of smoke increased gradually by approximately 400 cubic meters between 1600 and 1975. On the other hand, there were fluctuations amount of smoke after 1900 years. Before 2000, the amount of smoke and sulfur dioxide was decreased at 0 cubic meters.