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

The line graph provided reveals the emission levels of various contributors to air pollution in the United Kingdom from 1990 to 2005, measured in million tonnes (m). It is clearly seen that there was a downward trend in almost all categories, with the exception of vehicle emissions, which displayed an increase. In 1990, the total […]