The line graph illustrates data on three sources of air pollutants in the UK during the period 1990 to 2005.
Overall, it is clear that the total amount of pollutants in the air decreased between these years. The decline in air pollutants from industrial sources was particularly significant.
In 1990, the total amount of air pollutants in the UK was 7 million tonnes. This figure fell sharply to 4 million tonnes in 1999 and then continued to decline to just over 3 million tonnes by the end of the period.
Industry accounted for 5. 5 million tonnes of air pollutants in 1990. There was then a decrease throughout this period to 2 million tonnes by 2005, with a particularly sharp fall between 1993 and 1996. In contrast, the amount of air pollutants was much lower from transport and household sources. Air pollution from transport remained relatively constant at about 1 million tonnes from 1990 to 2005, whereas air pollutants from households saw a decrease from almost 1 million tonnes in 1990 to approximately 0. 1 million tonnes by 2005.
The line graph illustrates data on three sources of
air
pollutants
in the UK during the period 1990 to 2005.
Overall
, it is
clear
that the total amount of
pollutants
in the
air
decreased between these years. The decline in
air
pollutants
from industrial sources was
particularly
significant.
In 1990, the total amount of
air
pollutants
in the UK was 7
million
tonnes. This figure fell
sharply
to 4
million
tonnes in 1999 and then continued to decline to
just
over 3
million
tonnes by the
end
of the period.
Industry accounted for 5. 5
million
tonnes of
air
pollutants
in 1990. There was then a decrease throughout this period to 2
million
tonnes by 2005, with a
particularly
sharp fall between 1993 and 1996.
In contrast
, the amount of
air
pollutants
was much lower from transport and household sources.
Air
pollution from transport remained
relatively
constant at about 1
million
tonnes from 1990 to 2005, whereas
air
pollutants
from households
saw
a decrease from almost 1
million
tonnes in 1990 to approximately 0. 1
million
tonnes by 2005.