The chart shows the average daily minimum and maximum levels of air pollutants in 4 cities 2000. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The bar chart compares the average daily minimum and maximum concentrations of SO2 and N2O in four cities in 2000. Overall, Mexico City recorded by far the highest pollution levels for both gases, whereas Los Angeles had the lowest figures, particularly for SO2. In terms of SO2, Los Angeles had the lowest readings, with a […]