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Legend (Public/AirQualityNO2_2010_with_background)

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2010 NO2 annual mean (ug.m-3) (1)
< 30 < 30
30- 36 30- 36
36 - 40 36 - 40
40 - 44 40 - 44
44 - 50 44 - 50
50 - 59.6 50 - 59.6