… The atmospheric circulations must play critical roles in the sub-seasonal haze events. …
dispersion of atmospheric particulates was suppressed and the pollutants gathered within a …

… a polluted type of synoptic pattern becomes persistent, the level of heavy haze pollution,
such as a prolonged and heavy haze event … conditions on haze or particulate pollution for the …

… Acute particulate pollution has also attracted great scientific interest. Extensive studies
have been conducted to investigate the characteristics and formation mechanisms of …

… of aerosol at three regions in a severe haze event. … potential source regions of particulate
pollution in Shanghai were … indicated that the high particulate pollution of Shanghai was partly …

… dynamics during a red alert air pollution event (continuous hazardous haze days) and the
first few days following the event (sunny days first and then unhealthy haze days) in Beijing. …

… The higher proportion of smaller PM in haze events is thought to be arising from the difference
in air residence time different sized particles. Fine (PM 2.5 ), ultrafine (PM 0.01-0.1 ) and …

… of haze episodes that were less intense and did not receive as much public attention. The
first serious haze event in the country was reported in August 1991 followed by events in 1994, …

… Therefore, it was speculated that the increase in SO 4 2− production under high NO 2 and
SO 2 concentrations, high RH, and low O 3 levels in Northeast China haze events may occur …

… in Zibo from 11 to 25 January 2015, when serious particulate pollution frequently occurred.
… precursors contributed a lot to the haze events, among which the heterogeneous process …

… the most obvious time of haze in Harbin is from November to December, and it is concluded
that haze events are closely related to the large number of pollutants caused by the burning …