You could get a sense of how stagnant the air was by measuring CO2. Combustion of fuel in vehicles is huge compared to people exhaling, so you should see a huge rise in CO2.
You could get a sense of how stagnant the air was by measuring CO2. Combustion of fuel in vehicles is huge compared to people exhaling, so you should see a huge rise in CO2.
You could get a sense of how stagnant the air was by measuring CO2. Combustion of fuel in vehicles is huge compared to people exhaling, so you should see a huge rise in CO2.