Spatial variability of on-bicycle black carbon concentrations in the megacity of São Paulo: A pilot study.

In 2015, a controversial bicycle lane was installed on Paulista Avenue -a thoroughfare in the heart of the megacity of São Paulo with a high rate of motorised vehicles. For the first time, on-bicycle air pollution concentrations were assessed along this lane using black carbon (BC) as an indicator of fossil fuel combustion. We measured BC concentrations with a hand-held microaethalometer at a high temporal resolution, enabling the capture of fine spatial gradients along the route.

Hotspots of black carbon and PM in an urban area and relationships to traffic characteristics.

Three instrumented bicycles were used to measure black carbon (BC) and PM concentrations in a midsized city in southern Brazil. The objective of this study was to map the spatial distribution of BC and PM, to identify air pollution hotspots and to assess factors that may affect the concentrations of these pollutants, e.g.