Open AccessDo new bike lanes impact air pollution exposure for cyclists?—a case study from Berlin
Author(s) -
Seán Schmitz,
Alexandre Caseiro,
Andreas Kerschbaumer,
Erika von Schneidemesser
Publication year - 2021
Publication title -
environmental research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.37
H-Index - 124
ISSN - 1748-9326
DOI - 10.1088/1748-9326/ac1379
Subject(s) - air quality index , context (archaeology) , transport engineering , psychological intervention , environmental planning , environmental science , air pollution , geography , meteorology , engineering , psychology , chemistry , archaeology , organic chemistry , psychiatry
Cities in the 21st century are dynamically changing in response to environmental and societal pressures, not least among which are climate change and air pollution. In some of these metropoles, such as Berlin, a transformation of mobility systems has already begun. Along a mid-sized street in Berlin, a measurement campaign was conducted in 2020 to accompany the construction of a bike lane and the implementation of a community space along one of the side-streets. Using the new technology of low-cost sensors, higher resolution measurements of local air quality were enabled. Stationary and mobile measurements were taken using EarthSense Zephyr sensor systems before and after the construction of the bike lane and during the timeframe when the community space was in place. It was found that the implementation of the bike lane led to a reduction in NO 2 exposure for cyclists. During periods when the community space was in place, a reduction in NO 2 concentrations was also measured. This study highlights not only the utility of low-cost sensors for the measurement of urban air quality, but also their value in a science-policy context. Measuring local air quality changes in response to traffic interventions will enhance understanding of the associated health benefits, especially in connection with measures promoting more sustainable modes of active travel. More research of this nature is needed to gain a clear understanding of the impacts of traffic interventions on local air quality for better protection of human health.