Rapid Declines in European Traffic NO x and NMVOC Emissions Revealed by Eddy-Covariance and Remote Sensing
Reliable quantification of anthropogenic emission trends remains a major uncertainty in air-quality and climate assessments. Here we present nearly a decade of eddy-covariance flux measurements of NOx, nonmethane volatile organic compounds (NMVOCs), and CO2 in the Alpine city of Innsbruck, providing direct top-down c...