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. 2023 Mar 29;20(7):5305. doi: 10.3390/ijerph20075305

Table 8.

Annual average and maximum hourly values in comparison to the limits prescribed by the European Directive 2008/50/CE [35].

Emitted Gases CO
(mg/m3)
NO
(µg/m3)
NO2
(µg/m3)
NOX
(µg/m3)
SO2
(µg/m3)
O3
(µg/m3)
Annual average 0.29 1.64 10.77 12.60 0.20 66.65
General limit set by the 2008/50/CE (annual) 30 40 30 20
Limit value for the protection of
human health (annual)
26
Hourly maximum 2.76 52.75 70.61 151.21 6.86 114.97
General limit set by the 2008/50/CE (Hourly H, and Daily D) 10 (D) 200 (H) 350 (H) 180
Limit value for the protection of human health (Hourly H, and Daily D) 5 (D) 100 (H) 50 (D)
Emitted Particulate
Emitted Gases PM2.5
(µg/m3)
Nanoparticles
(d < 0.05 µm, n/cm3)
Ultrafine
(d < 0.3 µm, n/cm3)
Accumulation
(0.3 µm < d < 1 µm, n/cm3)
Coarse
(d > 1 µm, n/cm3)
PM10
(µg/m3)
Average 16.3 6289.9 10,312.9 53.6 0.54 21
Standard Deviation 9.5 7914.7 9620.6 101.4 0.61 10.8
Threshold set by the 2008/50/CE (annual) 25 40