The line graph presents data on air pollution caused by transport, industry, and households between 1990 and 2005.
Overall, it can be seen that the transport system had a stable pattern over the period, while the number of air pollutants produced by households had a fluctuating pattern until the end of the period.
Moving on to a more detailed analysis, millions of tons of air pollutants were released by households, and transport commenced at the same amount which, accounts for 1 million tons. In the subsequent years, transport was experienced a slight increase from 1993 to 1996 and a slight drop towards 1999.
On the other hand, the number of total air pollutants remarkably declined until 1999, which it fell from well above 6 million tons to 4. Next, it plummeted to over 2 million tones in 2005. As for air pollutants released by industry, it had witnessed a similar situation as total air pollutants did, which it started just under of 6 fell remarkably to 3 in 1996, and it kept pursuing that trend until the end of the period.
