The graph below shows the pollution levels in London between 1600 and 2000. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. <img src="--DELETED LINK-- alt="IELTS

The graph shows pollution

levels

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in London between 1600 and 2000. It measures

smoke

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and

sulphur

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dioxide

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in

micrograms

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per cubic metre.

According to

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the information, the

levels

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of both pollutants formed a similar pattern during

this

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period, but there were always higher

levels

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of

sulphur

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dioxide

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than

smoke

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in the atmosphere. (2nd paragraph describes the trends in more detail and illustrates these using data from the graph.) In 1600, pollution

levels

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were low, but over the

next

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hundred years, the

levels

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of

sulphur

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dioxide

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rose to 700

micrograms

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per cubic metre,

while

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the

levels

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of

smoke

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rose gradually to about 200

micrograms

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per cubic metre. Over the

next

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two hundred years the

levels

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of

sulphur

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dioxide

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continued to increase,

although

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there was some fluctuation in

this

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trend. They reached a peak in 1850.

Smoke

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levels

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increased a little more sharply during

this

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time and peaked in 1900 at about 500

micrograms

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. During the 20th century, the

levels

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of both pollutants fell dramatically, though there was a great deal of fluctuation within

this

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fall. (Final paragraph draws a simple conclusion from the data.)

Clearly

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,Clearly

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air pollution was a bigger problem in London in the early 20th century than it is now. (176 words)