The bar graph illustrates information regarding the degree of polluted air in 4 different countries depicted in 3 sectors in 2012. Overall, it is evident from the graph that China ranked first in all 3 factors, while America can see transport as a significant reason of air contamination while Japan’s main cause is factories or other industry facilities which both ranked top in each two parts.
As to the detail, the distribution of china in air corruption is highly ranked, with all 3 parts reaching more than 50PPM compared to the other 3 countries. The industrial facilities such as factories and construction figures a significant majority of contamination of 80PPM followed by vehicles including public transportation of 70PPM and 60PPM of electricity which recorded more than twice as many as the second-ranked U.S. When it comes to other nations, U.S’s electronic and industrial situation affected quality of earth atmosphere around 30PPM, while Japan shows similar in transport, much less by 10PPM in electronic consumption.
Looking at the figures for Australia, we can see Australia as an eco-friendly country with its degree of harmfulness to air recorded under 20PPM in 2012.