The influence of fresh air is undervalued. To have a new perspective of the quality of air modern sensors are a useful tool for evaluation.

Next to temperature, air pressure and relative humidity values in parts per million of Nitrogen Dioxide, Methane, Carbon Monoxide, Carbon Dioxide and Volatile Organic Compounds and respirable micro particles in the sizes of 0.5, 1, 2.5, 4 and 10 µm can be measured with this air station. PM1-10 represent the mass of particle in µg per m³. A total particle sum and the average particle size rounds up the last information about them.

A LiPo, StepUp and micro USB charging port enables my Air Quality Station V0.1 to be portable.
The actual breadboard is a bit bulky.

In future i can see all components in a way smaller box for easy measurement on the go. A GPS receiver could help to graph the values on a map, after every value with coordinates would be saved.

I still work on auto-scaling of the graphs. Field tests are in prepar