Few studies consider the increased ventilation rate associated with active travel modes. Ventilation rates are important because it affects the amount of inhaled pollutants. There is some research for cyclists but Dirk’s et al (2012) study suggests we lack research on pedestrians:
https://www.researchgate.net/profile/Kim_Dirks/publication/233728863_Personal_exposure_to_air_pollution_for_various_modes_of_transport_in_Auckland_New_Zealand/links/0c9605356e14bb5224000000.pdf
Does someone has recent research that does provide insight into pedestrian’s ventilation rate?
Article Personal exposure to air pollution for various modes of tran...
Important question because this has only rarely been measured directly in cyclists and is mostly estimated based on heart rate or assumptions.
For pedestrians US EPA mention 1.14 m3/h (seetable 6-29) for walking at 3 miles per hour (about 5 km/h)
Article Exposure to Particulate Matter in Traffic: A Comparison of C...
the only study I could find that measured Ventilation during walking (study with only 1 subject!) gives the following values: walking at 3 mph: 1.3 m3/h and walking at 5 mph: 1.6 m3/h.
Seems that only a very small number of studies measured ventilation in a direct way while walking, but that the results are comparable.
Bas de Geus
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