Topic: The graph below shows UK acid rain emissions, measured in millions of tones, from four different sectors between 1990 and 2007.
The line graphs compares amount of acid rain sending out in UK from different sources such as transport and communication, electricity, gas and water supply, domestic and other industries for over 17 years period of time.
It is clear that the figures reduced from most of above sources, except for slight increase in other industries.
In 1991, electricity, gas and water supply was the main source of acid rain emissions in UK, generating about 3.4 million tonnes. Other industries followed by 2.1 million tonnes. Transport and communication and domestic generated just under 0.5 million tones at that period.
Between 1996 and 2007, other industries overtook electricity, gas and water supply to be the main acid generation for the rest of period, which was about 1.7 million tones in 2007. By contrast, the figure for electricity, gas and water supply felt to 0.5 million tones in 2007. Acid rain generation from Transport and Communication slightly increased to about 0.6 million tonnes at the end of the period, but the figure for domestic source saw small decrease from 0.5 to about 0.2 million tonnes for the period.