Questions tagged [air-quality]

An indication of the pollution levels in the air.

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Ozone concentration when providing coordinates

Does anybody know where can I find data about ozone? I used TOMS, but it seems that data are not available anymore. What I used to do to retrieve data was specifying lat/lon coordinates and then ...
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Verifying time-invariance for spatial gradients of air pollution?

I have data from a network of NO2 passive samplers. Measurement are repeated in the same positions in different years. I need to verify if spatial gradients in air pollution remain constant in time, ...