The line graphs presents data on the primary contributors to air pollution in the UK between 1990 and 2005, with a focus on three sectors: Industry, transport and households. Overall, there was a notable decrease in total air pollutants during this period, although the trends avried across the different sectors.
In 1990, the combined emissions from all sources amounted to around 7.5 million tonnes. Industry was the major polluter at that time, contributing approximately 4 million tonnes. Transport emissions followed at roughly 2.5 million tonnes, while households accounted for the remaining 1 million tonnes.
Over the next 15 next years, a steady decline in total air pollutants is evident, reaching a level of just under 4 million tonnes by 2005. This reduction can be larely attributed to significant improvements in industrial emissions, which fell to about 1.5 million tonnes in 2005.
In contrast, the transport sector witnessed a more gradual decrease in emissions, reaching approximately 2 million tonnes in 2005. This suggests that while progress was made, tackling pollution from transport remained a challenge.
Household emissions also decreased, although to a lesser extent, eding the period at around 0.5 million tonnes. This indicates that while households played a smaller role in overall pollution, efforts to reduce their contribution were still important.