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Influence of Traffic Flow Patterns on Air Quality inside the Longest Tunnel in Asia
Hsueh-shan Tunnel Air pollutants Traffic flow Piston effect
2016/3/28
The long tunnel is a fixed, semi-closed environment where excessive concentrations of air pollutants are easily
accumulated. This can potentially have a serious affect on drivers' health, especially ...
Present and future impact of aircraft, road traffic and shipping emissions on global tropospheric ozone
global tropospheric ozone aircraft road traffic shipping emissions
2010/12/28
In this study, the LMDz-INCA climate-chemistry model and up-to-date global emission inventories are used to investigate the "present" (2000) and future (2050) impacts of transport emissions (road traf...
Atmospheric hydrogen variations and traffic emissions at an urban site in Finland
Atmospheric hydrogen variations traffic emissions Finland
2009/10/9
Atmospheric hydrogen (H2) mixing ratios were observed over a one year period from summer 2007 to 2008 in Helsinki, Finland. Relatively stable background values of hydrogen were occasionally observed a...
Is there a trend in cirrus cloud cover due to aircraft traffic?
Is there a trend in cirrus cloud cover due to aircraft traffic?
2009/2/16
Trends in cirrus cloud cover have been estimated based on 16 years of data from ISCCP (International Satellite Cloud Climatology Project). The results have been spatially correlated with aircraft dens...
Winter and summer time size distributions and densities of traffic-related aerosol particles at a busy highway in Helsinki
size distributions density traffic-related aerosol particles Helsinki
2009/1/12
Number concentrations and size distributions of traffic related aerosol particles were measured at a roadside in Helsinki during two winter campaigns (10–26 February 2003, 28 January–12 February 2004)...
Aerosol and NOx emission factors and submicron particle number size distributions in two road tunnels with different traffic regimes
NOx emission factors submicron particle size distributions different traffic regimes
2009/1/9
Measurements of aerosol particle number size distributions (18–700 nm), mass concentrations (PM2.5 and PM10) and NOx were performed in the Plabutsch tunnel, Austria, and in the Kingsway tunnel, Unite...
Global impact of road traffic emissions on tropospheric ozone
road traffic emissions tropospheric ozone
2008/12/5
Road traffic is one of the major anthropogenic emission sectors for NOx, CO and NMHCs (non-methane hydrocarbons). We applied ECHAM4/CBM, a general circulation model coupled to a chemistry module, whic...