the charge shows the average daily minimum and maximum levels of air pollutants in four big cities in 2000

The bar graph illustrates the average air pollution in four huge cities every day by two air pollutants in the year 2000.

Overall, it can be manifested that the highest level of air pollution spreading by max sulphur dioxide and max dinitrous oxide in mexico. Whereas, min sulphur dioxide spread none in los angeles.

Firstly, the pollution level of max sulphur dioxide was the highest in beijing and Culcutta, 130 and 59 respectively. In mexico and los angeles, the level of SO2 was 200 and 10. The highest air pollutant was maxed nitrous oxide. they pollute 207 in mexico and 104 in los angeles, while similar in beijing and calcutta. it was 54 and 52 respectively.

Secondly, the pollution level of min sulphur dioxide was the lowest in mexico (80) and los angeles (1). Also, they spread in beijing and calcutta (25,47) respectively. The min dinitrous oxide spread in all given cities and it was 39, 30, 14, 113 respectively.