The graph illustrate the emissions of acid rain in the UK, from four distinct sectors over the period of 17 years, from 1990 to 2007. The figures are expressed in millions of tonnes.
Overall, it can be seen that the sector of electricity, gas and water supply decreased over the given timeframe. Likewise, the other sectors of industries and domestic also showed the downward trend. By contrast, only the sector of transport and communication displayed a slight increase for few years but in the last years it also dropped and maintained the same figure from where it initiated.
Turning to details, the electricity, gas and water supply had the most acid rain emissions in 1990, approximately 3.4 million tonnes. Afterwards, it plummeted slowly and fell behind the other sectors of industry, transport and communication in 1996 and 2003 respectively, before levelling off at around 0.6 million tonnes in 2007. However, the acid rain emisions from the other industry sector began from slightly above 2 million tonnes. Following this, it also slumped slowly and after the period of 1997, it showed virtually no growth and marked at around 1.3 million tonnes in 2007. Similarly, the domestic sector started from 0.6 and it also dipped slowly before levelling off at nearly above zero million tonnes in 2007.
On the other side, the transport and communication sector inititated from approximately 0.7 million tonnes in 1990. It grew slightly but after 2005 it again tumbled slowly and stood at the same point of 0.7 million tonnes of acid rain emissions 2007.