The graph below shows the pollution levels in London between 1600 and 2000.
The graph illustrates the amount of pollution from
sulphur
dioxide
and smoke in London from 1600 to 2000.
Overall
, sulphur
dioxide
dominated the highest toxicity levels in London of all time in this
period. However
, the content of smoke was once higher than sulphur
dioxide
in 1950.
Looking into the details, it could be observed that sulphur
dioxide
experienced a dramatic upward trend starting from around 0 micrograms
before 1600 to approximately 750 micrograms
after 1750. It had been continuing increase until reached the highest point of around 800 micrograms
before 1850 and lastly
remarkably decreased to almost 0 again at the end
of the period.
Likewise
, before 1600, the smoke made up roughly 0 micrograms
and experienced a slight increase of around 250 micrograms
in the next two hundred years. After that, there was considerable growth with approximately 300 micrograms
before 1900 and followed by a remarkable plummet to the bottom at 0 micrograms
prior to the year 2000.Submitted by jeanbabyfrog on
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Vocabulary: Replace the words sulphur, dioxide, micrograms with synonyms.
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Vocabulary: The word "increase" was used 2 times.
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Vocabulary: The word "approximately" was used 2 times.
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Vocabulary: The word "around" was used 3 times.
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Vocabulary: Use several vocabularies to present the data in the second paragraph.
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