Abstract
In this article, I reviewed the reports on "acid fog or cloud" which have been recently published. Especially, the researches on the acidification and pollution mechanism were discussed, mainly based on our data. First, the sampling and measuring method of fog were mentioned. The diffusion growth model was suggested by analyzing the dependence of ion concentration on fog droplet sizes. The fog chemistry and meteorology were analyzed using a new factor analysis, which has been developed by our research group, and a 72h back trajectory at 850hPa. Finally, some interesting works were reviewed.
