make a prototype, but need to know when to do what in order to make it happen. 

what sensors or hardware do we need? --> buy?

Similar works done by others:

https://kidsmakingsense.org/

https://publiclab.org/notes/stevie/07-22-2015/ecohackers-these-kids-track-pollution-with-balloons-and-kites

https://luftdaten.info/en/home-en/

Why we need to monitor the air pollution in schools:

https://www.beijing-kids.com/blog/2013/01/21/what-beijing-schools-are-doing-about-air-pollution/

Users:

We target at schools in Chinese first tier cities, primary schools is the major focus for this week.  

Why:

Due to dense population and  heavy traffic in Chines first tier cities, The regional or city level air quality index either overstate or understate the air pollution level in schools.

How to deploy:

We selected a series of air quality control parameters, they are:

pm2.5, pm 10, CO2, O2(in doors), noise

Listed above are general air quality components that has significant influence on people's health