… of particulate matter at urban locations in Beijing, Shanghai, Guangzhou and Xi’an during
January 2013. We find that the severe haze pollution event was … primary particulate emissions, …

… High secondary inorganic and organic aerosol contributions to particulate pollution during
these haze events were reported in a recent study based on measurements at urban sites in …

… Three typical particulate pollution events (eg, haze) were examined to determine the
evolution of aerosol vertical distribution and the planetary boundary layer (PBL) during these …

… For all haze events analyzed in this study, the haze event period is no less than 1 day and
the daily mean PM 2.5 mass concentration on the day with peak hourly PM 2.5 should be …

… This finding suggests that 27 days in January exhibited serious particulate pollution. In
addition, 17 days had daily average PM 10 values that exceeded the NAAQS Grade II level of 150 …

… The high levels of TSP indicate that these pollution events contribute heavily to particulate
pollution. During the study period, high concentration of TSP during DEs indicates the …

… These size distribution measurements clearly indicate that higher TSP levels during the
1997 smoke-haze event were mainly attributed to the finer particle fraction PM2.5 and PM10, …

… particle pollution level. … haze events in Beijing, Xi'an, Chengdu and Guangzhou during
January of 2013, and the reduction of aerosol precursors is a key step to reduce particle pollution (…

… pollution, occurred in the Yangtze River Delta (YRD) of China from 1 to 10 December 2013.
This haze event … than particulate water-soluble species and particle mass (PM 2.5 ) . The …

… of particulate matter (PM) in the ambient environment of Ilorin metropolis, Nigeria, during
haze … Among the major sources of particulate pollution are the annual Saharan dust episodes. …