The graph below shows different sources of air pollutants in the UK from 1990 to 2005.

The graph below shows different sources of air pollutants in the UK from 1990 to 2005.
The line graph depicts the four main origins of
air
pollution
in the UK from 1990 to 2005, with units given in
million
tonnes
.
Overall
, most sources of
air
pollution
witnessed a decline, except those caused by transportation, which remained relatively stable throughout the period.
Initially
, total
air
pollution
was at a peak of approximately 7
million
tonnes
.
This
figure plummeted by about 3
million
tonnes
by 1999,
then
levelled off for three years before falling slightly to around 2
million
tonnes
by the end of the year.
Similarly
, industrial
air
pollution
started at just under 6
million
tonnes
and declined significantly to less than half its initial value 15 years later.
On the other hand
,
air
pollution
from transport and households was the least in 1990, both constituting around 1
million
tonnes
.
However
,
while
transport-related
pollution
remained steady throughout the period,
air
pollution
from households was almost eradicated by the latter year.
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Sentences: Add more complex sentences.
Vocabulary: Replace the words air, pollution, million, tonnes with synonyms.
Vocabulary: Rephrase the word "undefined" in your introduction.
Vocabulary: The word "decline" was used 2 times.
Vocabulary: The word "remained" was used 2 times.
Vocabulary: The word "around" was used 2 times.
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