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Nitrogen oxide levels

Time series of hourly NOX concentrations, ordered by the maximum value during the last 6 hours. NOx is a generic term for the mono-nitrogen oxides NO and NO2

— NOX 
UIZNov 13Nov 15Nov 17Nov 19ppb0100200
MERNov 13Nov 15Nov 17Nov 19ppb0100200
SACNov 13Nov 15Nov 17Nov 19ppb0100200
TLANov 13Nov 15Nov 17Nov 19ppb0100200300
CUTNov 13Nov 15Nov 17Nov 19ppb0100200
MGHNov 13Nov 15Nov 17Nov 19ppb0100200300
SAGNov 13Nov 15Nov 17Nov 19ppb0100200300
VIFNov 13Nov 15Nov 17Nov 19ppb0100200
CCANov 13Nov 15Nov 17Nov 19ppb050100150
PEDNov 13Nov 15Nov 17Nov 19ppb050100
TLINov 13Nov 15Nov 17Nov 19ppb0100200300
HGMNov 13Nov 15Nov 17Nov 19ppb0100200
NEZNov 13Nov 15Nov 17Nov 19ppb050100150
ATINov 13Nov 15Nov 17Nov 19ppb0100200
CUANov 13Nov 15Nov 17Nov 19ppb0100200
AJMNov 13Nov 15Nov 17Nov 19ppb050100
CAMNov 13Nov 15Nov 17Nov 19ppb0200400