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