If you want to know what is the pollen level in your area, you can use this app. It gives you all the information you need on a single screen. All you need to do is open the application and select the right city.

It is very easy to use and has a lot of options. It is very useful for people who are interested in finding out what is the pollen level in their area.

The application uses different sources to get the data. For instance, some cities have more than one source and they take into account the changes that may occur in the data. 

If you want to know more about the sources of the data, you can check the website of the application. It has a lot of information about them.