The line graph illustrates the acid rain emissions in the UK, measured in millions of tonnes, from various sectors between 1990 and 2007.
In 1991, electricity generation was the largest source of emissions, accounting for nearly 3.3 million tonnes. This was followed by other industries, which emitted around 2.1 million tonnes. Transport and communication, along with domestic sources, each contributed less than 1 million tonnes.
By 1993, there were no significant changes, but electricity emissions had declined to approximately 2.1 million tonnes. In 1995, both the electricity and other industries reported similar levels of emissions. After two years, other industries reached a peak of about 1.7 million tonnes while electricity emissions continued to decrease, with other categories still failing to exceed 1 million tonnes.
Entering the 21st century, other industries maintained their position as the highest emitter, followed closely by transport and communication. In 2003, there were no significant changes, and all sectors remained stable.
By 2007, other industries reported the highest emissions, while domestic sources recorded the lowest. Overall, electricity generation had the highest emissions initially, but over the years, these figures fell. Domestic sources consistently remained the lowest in emissions.