Figure 2: Frequency distribution of ozone concentrations

Page Last modified 20 Apr 2016

Frequency Distribution Of Ozone Concentrations

	AT	BE	DE	DK	ES	FI	FR	GB	GR	IE	IT	LU	NL	PT	SE

#ex	4254	607	11429	69	1035	53	1966	441	538	86	1273	155	945	n.a.	68
#st	110	20	342	6	80	11	97	32	10	6	44	5	37	4	6

n.a = number of exceedances not available

Figure 2. Frequency distribution of ozone concentrations (eight-hourly values; period 12.00-20.00) in excess of the 110 µg/m3 threshold for hourly values. For each country the total number of observed exceedances is given in row '#Ex', the number of stations is given in row '#St'. Frequency distributions are presented as Box-Jenkins plots indicating the minimum, the 25-Percentile, the 75-percentile and the maximum value. The data for Portugal did not allow for inclusion in this figure.