790 likes | 941 Views
MEASUREMENTS, EMISSIONS and DISPERSION of NOx, HC, PM10. VÄSTRA GÖTALAND. µg/m. 3. Maximum permitted values. 75. 70. 60. Environmental quiality norm. 50. Checked by measurements. 40. Upper check-level. 30. Checked by. measurements in. combination with model s.
E N D
MEASUREMENTS, EMISSIONS andDISPERSION ofNOx, HC, PM10
µg/m 3 Maximum permitted values 75 70 60 Environmental quiality norm 50 Checked bymeasurements 40 Upper check-level 30 Checked by measurements in combination with models Lower check-level 20 Checked by models 10 0 2001 2002 2003 2004 2005 Year Exemple for PM10 as daily mean
Measurements • Emission calculations • Dispersion calculations
MEASURING SITES for PM10 Gothenburg Mariestad Aspvreten Råö Borås Färgelanda
Aspvreten BALTIC SEA
(all coexistent) Month mean of
(no precipitation) Background thu wed thu thu fri sat sun mon tue
(no precipitation) Background sat wed sun tue mon thu fri
(no precipitation) Background sat wed sun mon thu fri tue
(no precipitation) Street - Background sat mon fri sun wed thu tue
(with precipitation) Street - Background mon fri sat wed sun tue thu
Gothenburg Roof; city center mon wed sun tue sat thu fri
Gothenburg Roof; city center wed fri sun sat mon thu tue
Gothenburg Ratio Roof; city center sat mon thu sun tue fri wed
NOx (ton/Year) VOC (ton/year) 267.7 70.5 421.8 2398.8 928.4 442.4 3964.3 1206.4 707.2 803.4 Particles (ton/year) 41.0 235.5 Agriculture Forestry Housholding 302.2 Industry Other 92.1 72.7
A Cars are split up by age: B C D E F
Traffic intensity on different parts of the roads: • Year of calculation: • Traffic intensity is a function of year • Number of cars of different ages is a function of year
Emissions (g/km) are functions of: • Type of car • Age of car • Type of road • Speed limit on road
Cold start Hot soak