The charts shows air pollution levels by different causes among four countries in 2021.

The presented bar chart provides comparative analysis for air pollution rates among four main countries; through measuring levels in three sectors, which are electricity, transport and industry. It is pretty clear that in all the sectors, China has the highest percentages. This may reflect how the latest place ignores being environment-friendly by any means. On the other hand, Australia is the best with the lowest percent in second and the third specializations; while Japan is a perfect location in the first one. Through a bird-eye view, it is worth noting that, on average, manufacturing produces the largest amount of harms in the air compared to others. On the contrary, electricity production and transportation are considered the least, with almost equal impacts. Throughout the graph, it is obvious that, America and Japan are in the middle; however they still need to improve their efficiency more. To conclude, pollution is slightly affected by the civilization and technological innovations. They are not the major reasons and factors. Simply, the governments' focus is the thing that highly matters.