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.

The given line graph demonstrates the causes of

air

pollutants

in the UK between 1990 and 2005. Units are measured in

million

tonnes

of

air

pollutants

.

Overall

, it can clearly be seen that the total

air

pollutants

had been decreasing dramatically from approximately 7 to about 3

million

tonnes

.

Additionally

, there were 3 main sources of

air

pollutions

Fix the agreement mistake

pollution

show examples

which were transport, industry, and households, with transport being the highest

contributors

Fix the agreement mistake

contributor

show examples

over 15 years. Transport, as the most significant source, contributed more than half of the total

air

pollutions

Fix the agreement mistake

pollution

show examples

. The figure stood at just below 6

million

tonnes

in 1990 and dropped slightly around 0.5

million

tonnes

in the following 3 years.

Then

, in 1996, the number declined significantly to about 3

million

tonnes

.

Finally

, in the following years, the trend continued to drop gradually until reaching exactly 2

million

tonnes

in 2005. Regarding the remaining two sources, industry and households, both started at approximately 1

million

tonnes

.

Moreover

,

while

air

pollutants

from industry slightly increased, the ones from households slightly decreased in 1993. From

this

point, the former remained stable at just above 1

million

tonnes

, and the latter experienced continuous decline over a decade and

finally

being almost gone in 2005.