Bogotá is a leading city with regard to urban cycling infrastructure in Latin America. This study evaluated cyclist exposure to particle-related air pollution on selected bicycle lanes in Bogotá. We provide new data on cyclist inhalation rates and the chemical composition of ambient particulate matter. We measured real-time concentrations of particulate matter (PM_2.5) and black carbon (BC) on two different bicycles lanes. Cyclist exposure to PM_2.5 and BC ranged between 10.5 and 36.0 μg/m³ and 4.5 and 7.9 μg/m³, respectively. The highest exposure was measured on bicycle lanes adjacent to roads with major vehicular traffic. We also measured PM_2.5 concentrations by a gravimetric method using a fixed monitoring point located in one of the bicycle stretches. The chemical composition of PM_2.5 showed high concentrations of Ca, Fe, Al, and Mg, with mean values ranging from 63 ng/m³ to 286 ng/m³. The detected trace elements were Cu, Zn, and Ba at concentrations exceeding 10 ng/m³. Our results highlight the influence of traffic emissions (direct emissions and PM resuspension) on cyclist exposure to hazardous air pollutants (such as PM_2.5 and BC). Our findings emphasize the need to consider air quality in the urban planning and implementing of cycling infrastructure.

波哥大是拉丁美洲城市自行车基础设施方面的领先城市。这项研究评估了波哥大选定自行车道上骑自行车的人暴露于与颗粒相关的空气污染中。我们提供有关骑车人的吸入率和周围颗粒物化学成分的新数据。我们测量了两个不同自行车道上的颗粒物（PM _2.5）和黑碳（BC）的实时浓度。骑自行车的人暴露于PM _2.5和BC的范围分别为10.5和36.0μg/ m ³以及4.5和7.9μg/ m ³。在与主要车辆交通相邻的自行车道上测得的最高暴露量。我们还测量了PM _2.5使用位于自行车段之一中的固定监控点通过重量分析法测定浓度。PM _2.5的化学成分显示高浓度的Ca，Fe，Al和Mg，平均值范围为63 ng / m ³至286 ng / m ³。检测到的痕量元素为Cu，Zn和Ba，其浓度超过10 ng / m ³。我们的结果强调了交通排放（直接排放和PM悬浮）对骑车人暴露于有害空气污染物（例如PM _2.5和BC）的影响。我们的发现强调在城市规划和实施自行车基础设施时需要考虑空气质量。