The graph below shows UK air pollutants in millions of tons, from three different sources, between 1990 and 2005.

The line chart provides information about the

air

pollutants

from three different sources in millions of tonnes in the UK from 1990 to 2005. In general, there was a downward trend, except for

transport

modes in the given time period, and

also

a switch in the position between

transport

and industry sources

at the end

of the time period. Based on the total number of

air

pollutants

, there was a downward tendency with 2

million

, from 1900 (8

million

) until 2005 (6

million

).

Moreover

, regarding the industry-based, at the beginning of the time period, the number of

air

pollutants

stood in the top spot until 1999 and

then

fell down with the same amount with the

transport

of 3

million

, before jumped slowly by 1

million

and was the second place as 2

million

.

Furthermore

,

transport

and households started with the same amount in 1990 with 1

million

;

however

,

transport

modes showed a fluctuating trend between 1993 to 1999 and

then

rose gradually by 2

million

and was the first rank to 3

million

in 2005.

On the other hand

,

households

Change the noun form

household

show examples

sources remained stable between 1993 to 1999 and experienced a slight decrease from 2002 to 2005 by 1

million

, and there were no

air

pollutants

from households in 2005.