The line graph illustrates the amount of air pollutants from three different sources in the UK between 1990 and 2005. Overall, the total number of air pollutants decreased over the period shown. While the amount of air pollutants from industry and households witnessed a considerable rise, the figure for transport remained relatively stable.
In 1990, the amount of air pollutant from three sources was 7 million tonnes, while the data of emissions from industry, households and transportation were 5. 5 million, 0. 9 million and 0. 9 million tonnes respectively. Over the nine following years, the total amount of pollutants released into air decreased sharply by 3 million tonnes and the same pattern can be seen in the number of harmful gases emitted from transportation. While the amount of air pollutants from households fell from 0. 9 million to about 0. 7 million tonnes, the figure for transport fluctuated slightly between 0. 9 million and 1 million tonnes over the same period.
In 2005, the total number of air pollutants decreased gradually to above 3 million tonnes. Similarly, the data on industry and households drop to 2 million and 0. 2 million tonnes. The amount of emissions released into air from transportation stood at 1 million tonnes at the end of the period
The line graph illustrates the
amount
of
air
pollutants
from three
different
sources in the UK between 1990 and 2005.
Overall
, the total number of
air
pollutants
decreased over the period shown. While the
amount
of
air
pollutants
from industry and
households
witnessed a considerable rise, the figure for transport remained
relatively
stable.
In 1990, the
amount
of
air
pollutant
from three sources was 7
million
tonnes, while the data of emissions from industry,
households
and transportation were 5. 5
million
, 0. 9
million
and 0. 9
million
tonnes
respectively
. Over the nine following years, the total
amount
of
pollutants
released into
air
decreased
sharply
by 3
million
tonnes and the same pattern can be
seen
in the number of harmful gases emitted from transportation.
While
the
amount
of
air
pollutants
from
households
fell from 0. 9
million
to about 0. 7
million
tonnes, the figure for transport fluctuated
slightly
between 0. 9
million
and 1
million
tonnes over the same period.
In 2005, the total number of
air
pollutants
decreased
gradually
to above 3
million
tonnes.
Similarly
, the data on industry and
households
drop to 2
million
and 0. 2
million
tonnes. The
amount
of emissions released into
air
from transportation stood at 1
million
tonnes at the
end
of the
period