在环境科学中,对大气中微粒的研究有着极其重要的意义。众所周知,大气中含有许许多多的微粒(包括固体颗粒和液体微滴),它们之间相互作用,形成了一个平衡体系;这些微粒的存在,污染了环境,降低了大气中的能见度,并危害着人们的身体健康。近几年来,美国许多研究者对单个微粒气溶胶进行了多方面的探讨,得到了许多有价值的实验结果。 In environmental science, the study of atmospheric particles is of great importance. It is well-known that the atmosphere contains a large number of particles (including solid particles and liquid droplets) that interact with each other to form a balanced system; the presence of these particles contaminates the environment, reduces visibility in the atmosphere and jeopardizes People’s health. In recent years, many researchers in the United States have made various discussions on single-particle aerosols and obtained many valuable experimental results.