No abstract

No abstract

No abstract

No abstract

The characteristic of nitrogen dioxide (NO 2 ) concentrations, including the long-term trends, spatial distribution, and effects of emission reduction measures-particularly those related to traffic management-were analyzed in Beijing by multimethods (PARADE, 20 August-3 September, 2015), the mean NO 2 concentrations during the APEC summit and PARADE decreased 46.2% and 39.5% respectively compared with those before and after these major activities while diurnal NO 2 peaks decreased 24.5%-85.3% and 4.1%-70.8%, respectively during the APEC summit and PARADE period. To decrease NO 2 concentrations, a high level of commitment must be given to promote coordinated regional air pollution prevention and control mechanisms in Beijing and its surrounding areas.

No abstract

No abstract

No abstract