The line graph presents a comparative analysis of air pollutants over the designated period from three particular sources in the UK.
The line graph shows that the highest number of million tons was achieved by industries; then it decreased rapidly. On the other hand, the resource from transports increased sharply. After that, it stood at a peak level. Notably, the resource from households remained at a consistently low level.
On the one hand, the highest number of million tons was produced by industries. After that, it declined quickly from almost 8 million tons in 1900 to 5 million tons in 2005. In addition, transportation grew rapidly from nearly 1 million tons in 1999 to almost 3 million tons in 2005; then it stood at a peak level among the other two sources.
Notably, while the sources from industries and transportation achieved the peak and lowest levels, respectively, the amount from households remained stable at 1 million tons from 1900 to 1999. Finally, it became completely zero.