… haze pollution are more sensitive to changes of atmospheric circulation. Our results indicate
that the frequency of regional haze events is … Severe particle pollution in northern China …

… exchange were restrained, and the vertical and horizontal diffusion of moisture, particulate
matters and other air pollutants were also prevented, which affected visibility, leading to the …

… Haze pollution events have been occurred frequently in a large-scale in China, resulting in
… weather, pollutant concentrations and even ratio of gas and particulate pollutants in HHHT …

… haze event that affected more than 800 million people, which is one of the most severe air
pollution … The daily averaged heating rate in the haze particle layer varies from 0.12–0.81 K/…

… carbon particle analyzer data were analyzed in this study. The results showed that particulate
… -range transported aerosol during two severe haze events. Increased amount of aerosols …

… occurrence of extreme haze events (AQI > 300). Period II had frequent heavy haze events
(200 < … There is an urgent need to reduce particulate matter (PM) concentrations and eliminate …

… The mass concentrations of some crustal elements and all the anthropogenic pollution
elements during haze days were substantially higher than those in normal days for each particle …

… Urban particle pollution … haze events that are dominated by secondary particles [18, 19]
under the synoptic conditions, which cause the combination of the regional transport of pollutants …

… China, causing one of the worst atmospheric pollution events in history. The air pollution was
dangerously high during these haze episodes, with the peak concentration of fine particles (…

… A severe particulate matter pollution event occurred in … of meteorological conditions on this
event. It was found that the … factors causing the event. Four stages were identified during this …