Can we collect our data from AirQWeb, to use in our own software?

Yes, customers can collect their data from the central database with an easy-to-use web service. It takes some parameters as input and returns the data in JSON format. You will have to write a simple script at your end. There is a guide on how to do this here:

https://www.airqweb.com/userManuals/DataCollectorService.pdf