[Concentration Characteristics and Influencing Factors of Atmospheric Particulate Matters in Spring on Weizhou Island, Beihai, Guangxi Province]

To investigate the characteristics of atmospheric environment and possible cross-boundary transports in the north of South China Sea, field experiments were carried out on Weizhou Island from March to April, 2015. The concentration and particle size distributions of atmospheric particulate matters were measured, and the concentration characteristics and the source of particulate matters were analyzed in combination with meteorological factors and back trajectory analysis. The results showed that:the PM