ges of using renewable energy

 

Pollution levels were modest in 1600, but during the next century, sulphur dioxide levels grew to 700 micrograms per cubic metre, while smoke levels steadily increased to around 200 micrograms per cubic metre. Sulphur dioxide levels continued to rise during the next two hundred years, however there was some volatility in this trend. In 1850, they reached their height. During this time, smoke levels rose even faster, peaking at almost 500 micrograms in 1900. Both pollutants' levels dropped considerably during the twentieth century, albeit there was a lot of variation within that drop.

Air pollution was clearly a bigger issue in London in the early twentieth century than it is today

The levels of both pollutants fell dramatically during the twentieth century, though there was a great deal of fluctuation within this fall.

London had the lowest levels of pollution in 1600, but the number increased dramatically over the next few years. In the 1700s, sulfur dioxide levels exceeded 700 micrograms per cubic meter, while smoke levels gradually increased to around 200 micrograms per cubic meter. Sulfur dioxide levels continued to rise over the next two centuries, peaking in 1850 at nearly 900 micrograms per cubic meter. Furthermore, smoke levels increased more rapidly, reaching a peak of around 500 micrograms in 1900.

In conclusion, sulfur dioxide has always been the more significant pollutant and smoke level in London over the centuries. And it is undeniable that London's pollution problem has improved over time in the twentieth century, reaching near-zero levels.

As is presented in the graph, the level of Sulphur dioxide was maintained unstably. Before 1600, the level was still very low, under 100 micrograms per cubic meters but after that, it sharply moved upward to more than 750 micrograms per cubic meters in about 1730. Then, there had a slight decline and a steadiness to near 1800. Afterward, the level continued to go up and reached the climax in 1850 about nearly 900 micrograms per cubic meter. There was continued to have a slight and unstable decline until nearly 1900, then the level dropped dramatically and almost over in 2000.

We can see that, in 1600, the figures smoke in London started sharply under 100 micrograms per cubic meter. Between 1650 and 1900, these rates significantly shot up to 500 micrograms per cubic meter, a period of 250 years. Following that, from 1900 to 1950 there was a rapid changed at 300 micrograms per cubic meter nearly the same as the levels of sulphus dioxide. Finally, the level of smokes in London fell to a dip in 2000, at zero.

Overall, the figure of both pollutants experienced a familiar trend. However,  the level of sulphur dioxide was way more significant than smoke one.

In 1600, the number of pollution micrograms was low, yet for the next 100 years, there was a gradual increase in the smoke level, by nearly 200 micrograms while the figure for sulphur dioxide rose sharply to almost 750 micrograms. Smoke levels continued to go up, at the same time fluctuations were witnessed in sulpher dioxide rate from 1700 to 1800. 

Between 1800 and 1900, sulphur dioxide and smoke levels reached a peak, at around 800 and 500 micrograms respectively. After 1900, the levels of both pollutants fell dramatically to 0 before fluctuating for a long time.