Satellite NO₂ retrievals suggest China has exceeded its NO_x reduction goals from the twelfth Five-Year Plan.

ABSTRACT: China's twelfth Five-Year Plan included pollution control measures with a goal of reducing national emissions of nitrogen oxides (NO_x) by 10% by 2015 compared with 2010. Multiple linear regression analysis was used on 11-year time series of all nitrogen dioxide (NO₂) pixels from the Ozone Monitoring Instrument (OMI) over 18 NO₂ hotspots in China. The regression analysis accounted for variations in meteorology, pixel resolution, seasonal effects, weekday variability and year-to-year variability. The NO₂ trends suggested that there was an increase in NO₂ columns in most areas from 2005 to around 2011 which was followed by a strong decrease continuing through 2015. The satellite results were in good agreement with the annual official NO

SUBMITTER: de Foy B 

PROVIDER: S-EPMC5082360 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature