รายละเอียดตัวอย่าง

The chart displays different sources of air pollution emissions in the UK between 1990 and 2005 Overall, the amount of total air pollutants fell significantly throughout the period, but that was the highest in the figures, industry also decreased sharply, that the second highest from 1990 to 2005. Meanwhile transport remained stable during the period.Households were the lowest in the chart. The figures for total air pollutants dropped slightly from 1990 to 1993, at about 7.0 million tonnes.After that it continued to decline to 5.0 million tonnes in the three years from 1993 to 1996.Moreover, there was a steady decrease in 4.0 millions tonnes by the end of 2005.Industry also had a downward trend,that was reaching a peak at 5.5 million tonnes then it fell marginally,at 5.0 million tonnes in 1993.In addtion, the figures for industry remained to drop to around 2.2 milions tonnes Transport was unchanged in the 15 years over the period from approximately 0.9 milions tonnes to around 1.1 milions tonnes.In the term of households had a similar start point to transport, at 0.9 milions tonnes.Howover,households had a downward trend, decreasing slightly to approximately 0.6 miliosn tonnes from 1990 to 1996, after that it recovered about 0.9 and continued to decline to 0.2 milions tonnes between 1999 and 2005