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.
The line graph illustrates the level of contamination in London measured by
micrograms
per cubic metre
in a 400-year period, starting in 1600. Overall
, it can be seen that both substances followed a similar pattern, increasing and yet falling back, with the amount of sulphur
dioxide
always surpassing the proportion of smoke.
Initially
, in 1600, there were just roughly 5 micrograms
per cubic metre
of sulphur
dioxide
. After that, it experienced a dramatic increase, reaching over 750 micrograms
per cubic metre
in 1725. The sulphur
dioxide
amount fell and rose between 1750 and 1825, reaching its peak at approximately 900 micrograms
per cubic metre
in 1850. In 1900, the trend started to decrease significantly and fluctuated drastically until fell to zero in 2000.
Similarly
, smoke started at almost the same level as sulphur
dioxide
. However
, the level rose gradually and peaked at just under 500 micrograms
per cubic metre
in the year 1900. Thereafter
, it witnessed a dramatic fluctuation and then
dropped to 0 micrograms
per cubic at the end
of the provided period.Submitted by nnatthinee on
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Vocabulary: Replace the words micrograms, metre, sulphur, dioxide with synonyms.
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Vocabulary: The word "amount" was used 2 times.
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Vocabulary: The word "fall" was used 3 times.
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Vocabulary: The word "dramatic" was used 2 times.
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