Contribution of on-road transportation to PM_2.5.

ABSTRACT: Fine particulate matter (PM_2.5) mainly originates from combustion emissions. On-road transportation is considered one of the primary sources of PM_2.5 emission. The relationship between on-road transportation and PM_2.5 concentration varies temporally and spatially, and the estimation for this variation is important for policymaking. Here, we reveal the quantitative association of PM_2.5 concentration with on-road transportation by the spatial panel Durbin model and the geographical and temporal weighted regression. We find that 6.17 billion kilometres (km) per km² on-road transportation increase is associated with a 1-μg/m³ county-level PM_2.5 concentration increase in the contiguous United States. On-road transporta

SUBMITTER: Li C 

PROVIDER: S-EPMC8556279 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature