there is the atmo tube.s good air quality. 93 out of 100. it is telling us things are pretty clean and in this environment that would be a pollutant mostly coming from traffic. if you go indoors, there are other sources. ok, comparing that to your readings, do they seem like they are on track? i would say our reading is a different pollutant, but it is telling us it is rather more polluted than this 93 out of 100. i would not call the air quality good, i would call it average. we have got the cleanspace device next with their tag. this is reading carbon monoxide. it is giving us concentrations that appear to be a little above 1.5 ppm, which i would say is very consistent with what we are seeing in the nitrogen dioxide. it is giving as a moderate level of traffic pollution as we might expect. i think that in a sense is a more predictable sensor than the ones depending on volatile organic compounds because that is a very big range of substances and the sensitivity will not be the same for every compound. now t

this is the atmo tube.ality. 93 out of 100, so telling us things are pretty clean. in this environment, that would be a pollutant coming mostly from traffic. indoors, there are other sources but now we are outdoors. comparing that to your readings, are they on track? i would say our reading is different pollutant but telling us it's rather more polluted than this 93 out of 100. i wouldn't call the air quality good, i'd call it average. we have the cleanspace device next with their tag. this one is reading carbon monoxide. it is giving us concentrations that appeared to be a little bit above 1.5 parts per million. that would be consistent with what we are seeing in the nitrogen dioxide. a moderate level of traffic pollution, as we might expect. that in a sense is a more predictable sense than the ones depending on the volatile organic compounds because that is a big range of substances and the sensitivity will not be the same for every compound. then we are looking at the i—blades phone case. i noticed that

this is the atmo tube.3 out of 100, so telling us things are pretty clean. in this environment, that would be a pollutant coming mostly from traffic. indoors, there are other sources but now we are outdoors. comparing that to your readings, are they on track? i would say our reading is different pollutant but telling us it's rather more polluted than this 93 out of 100. i wouldn't call the air quality good, i would call it average. we have the cleanspace device next with their tag. this one is reading carbon monoxide. it is giving us concentrations that appeared to be a little bit above 1.5 parts per million. that would be consistent with what we are seeing in the nitrogen dioxide. a moderate level of traffic pollution, as we might expect. that in a sense is a more predictable sense than the ones depending on the volatile organic compounds because that is a big range of substances and the sensitivity will not be the same for every compound. then we are looking at the i—blades phone case. i noticed that this

this is the atmo tube. good at quality. 93 out of 100 so things are pretty clean, this one says. this will be mostly coming from traffic. indoors, there are other sources but now we are outdoors. comparing that to your readings, are they on track?” outdoors. comparing that to your readings, are they on track? i would say that our reason it —— our reading is different pollutant but rather more polluted than the 93 out of 100. rather more polluted than the 93 out of100. i rather more polluted than the 93 out of 100. i wouldn't call it good, i would call the air quality average. this one is reading carbon monoxide. it is giving us concentrations that appeared to be a little bit above 1.5 parts per million. that would be consistent with what we are seeing in the nitrogen. —— nitrous dioxide. thatin in the nitrogen. —— nitrous dioxide. that in a sense is a more predictable sense with the ones depending on the organic compounds because that is a big range of su bsta nces because that is a big range of substances