The graph below shows different sources of air pollutants in the UK from 1990 to 2005. Summarise the information by selecting and reporting the main features and make comparisons where relevant. Write at least 150 words. (20 mins.)

The line graph illustrates four sources of

air

pollutants

: transport, industry, households, and total

air

pollutants

. The data were collected between 1990 and 2005 in the United Kingdom. Units are expressed in

million

tonnes

.

Overall

, the sources of

air

pollutants

decreased, except for transport. The biggest source was industry and the least meaningful were households. More specifically, total

air

pollution was over six

million

tonnes

in 1990. In the following years, the emissions had a rapid decrease until 1999, remained stable until 2002 and dropped again in 2005 with just under 4

million

tonnes

.

Moreover

, industries put out just under 6

million

tonnes

of

air

pollutants

in 1990.

Then

, the number had a steady fall until 1996 and continued dropping until 2005, with 2

million

tonnes

.

Furthermore

, households started with approximately one

million

tonnes

and dropped to almost zero.

Besides

, the emissions from transport remained stable in the given period