Band 5+: The charts shows air pollution levels by different causes among four countries in 2021. Summaries the information by selecting and reporting the main features, and make comparisons where relevant.

The charts illustrates about the amount of air pollution in some countries which due to three reasons in 2021.

From the given information, we could see that China had the most air pollution than other countries in 2021. The reasons of air pollution itself, such as electricity generation, transportion, and industry was dominated by China too. However, the country that had lowest level of air pollution in 2021 was Australia, in every reasons.

In terms of electricity, China had the highest percentage over other countries, about 80 percent. Followed by Japan in the second rank and America in the third, about 42 and 28 percent respectively.

Regarding pollution due to transportation, the amount of percentage was dominated by China too, reached 70 percent. However in America, the transportation was the biggest reason for the high air population, about 58 percent, while the other reasons only got about 30 percent.

Industry has the least numbers of air pollution for four countries in 2021. The high point is only about 58 percent, taken by China. Whereas the lowest is in Japan, about 16 percent.