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I am by no means an expert, but as far as I understand NO2 pollution is mainly generated by internal compustion engines (especially diesel?), so I don't underst
by z2h-a6n 3y ago
I am by no means an expert, but as far as I understand NO2 pollution is mainly generated by internal compustion engines (especially diesel?), so I don't understand why there would be a causal link to A/C use. I can imagine various reasons for there to be a correlation without direct causation, in particular because the atmospheric chemistry of NOx [1], though to be honest I don't really see the correlation you mention just from the visualizations.
The data are (or will be) available in the sources mentioned here [2], if anyone wants to analyze them (I think, I haven't actually tried to access them). I don't know where you would get geospatial data on A/C use to compare with though.
[1] https://en.wikipedia.org/wiki/NOx https://en.wikipedia.org/wiki/NOx
[2] https://tempo.si.edu/data.html https://tempo.si.edu/data.html
- tiffanyh 3y agoMakes sense. But aren’t power plants also a major/top producer of NO2, and more energy is used in heavily A/C used locals. https://airquality.gsfc.nasa.gov/power-plants https://airquality.gsfc.nasa.gov/power-plants
- z2h-a6n 3y agoIt looks like power plants are also a significant source of nitrogen oxides in the atmosphere, though I don't know what the major/top sources are. From the US EPA [1]: NO2 primarily gets in the air from the burning of fuel. NO2 forms from emissions from cars, trucks and buses, power plants, and off-road equipment. As I say, I'm no expert, bu my understanding is that NOx compounds can be formed whenever nitrogen and oxygen are mixed at sufficiently high temperatures, e.g. when burning stuff in air. [1] https://www.epa.gov/no2-pollution/basic-information-about-no2#What%20is%20NO2 https://www.epa.gov/no2-pollution/basic-information-about-no...