The line graph delineates the emissions of acid rain in millions of tonnes across four distinct sectors in the UK from 1990 to 2007.
Overall, the data indicates a notable downward trajectory in acid rain emissions across all sectors, with the most significant reductions observed in the Electricity, Gas, and Water Supply sector, while the Domestic sector exhibited the least variation.
In 1990, the Electricity, Gas, and Water Supply sector recorded the highest emissions at approximately 3.8 million tonnes. This figure underwent a substantial decline, reaching just over 0.8 million tonnes by 2007, marking a significant reduction of nearly 3 million tonnes over the period. Similarly, the Other Industries category commenced at around 3.5 million tonnes and witnessed a gradual decrease, ultimately stabilizing at about 1 million tonnes in 2007. This sector demonstrated a considerable reduction of approximately 2.5 million tonnes, highlighting an effective decline in acid rain production.
In contrast, the Transport and Communication sector began with emissions of approximately 0.7 million tonnes, which increased until 2005, where it peaked at roughly 1 million tonnes before declining to about 0.3 million tonnes by the end of the period. This fluctuation resulted in a net decrease of 0.4 million tonnes. The Domestic sector, however, experienced minimal fluctuation, beginning at around 0.4 million tonnes and concluding at approximately 0.2 million tonnes, which underscores its status as the smallest contributor to acid rain emissions throughout the observed period.