The line graph compares the data about four different reasons of
air
Use synonyms
pollution
in the UK in a time period of 15 years from 1990 to 2005, measured in Use synonyms
tonnes
.
Use synonyms
Overall
, during Linking Words
this
period, sources of Linking Words
air
pollutants (Industry, Total Use synonyms
air
pollutants) gradually declined with some fluctuations, Use synonyms
while
the percentage of Linking Words
pollution
caused by Transport slightly increased.
As the graph shows, in 1990, Total Use synonyms
air
Use synonyms
pollution
in the UK was 7 Use synonyms
million
Use synonyms
tonnes
, followed by a slow drop to just under 4 Use synonyms
million
Use synonyms
tonnes
in 1999. During the next 6 six years, Use synonyms
this
index remained constant without any dramatic changes. At the same time in 1990, the percentage of Linking Words
pollution
caused by local industry was around 5,5 Use synonyms
million
Use synonyms
tonnes
. By the end of 2005, Use synonyms
this
number was only 2 Linking Words
million
, because of a rapid decline from 1993 to 2003.
Use synonyms
By contrast
, in 1990, Transport Linking Words
pollution
showed the lowest index with just under 1 Use synonyms
million
Use synonyms
tonnes
. Use synonyms
Then
, from 1990 until 2005, it experienced some fluctuations; Linking Words
however
, Linking Words
at the end
Linking Words
this
figure climbed up to only 0,2 Linking Words
million
. Households started with a Use synonyms
million
Use synonyms
tonnes
and fell statistically to 0,3 Use synonyms
million
Use synonyms
tonnes
in 2005.Use synonyms