Place comparison allows you to compare pollution levels for different places in terms of daily and monthly trends.
You can add places to the comparison list using the 'Compare' button on the place card.
After you have added places to your comparison list, you can see the places as columns in the comparison table. You can access the "Comparison" page either by clicking the "Go to Comparison" button on the page banner or by using the main menu.
The comparison page allows you to compare selected locations by monthly or daily trends. It comes with rows for each tracked pollutant. You can delete and add places without leaving this page.