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.

The given line chart illustrates a variety of

air

pollution resources,namely transport, industry, and households including the total amount happening in the UK over a fifteen-year period,between 1990 and 2005.

Overall

, the number of

air

pollutants in total show a downward trend over the whole timeframe.

It is clear that

the pollution generated from industry accounted for the highest volume throughout the period,

while

those substances from households were the lowest proportions.

In addition

, the waste manufactured from transportation vehicles almost remained steady over fifteen years. At the start of the period,the industry sector generated the highest

air

pollution at 5.5

million

tonnes and

then

gradually declined until the end,more than halving.

Similarly

, the volume of these pollutants from households experienced around a

million

tons at the beginning,despite a slight fall comprising one in ten of a

million

tons by 2005.

Conversely

, only the

air

waste manufacturing from transport continued unchanged from 1990 to 2005, accounting for a

million

tons.