The AGU JINGmeeting (AJM2018) about atmospheric PM2.5 begins on 16th October2018 and consists of a series of plenary sessions, regular sessions, and postersessions. It is with great pleasure that we invite you to attend the meeting,gather to present your work, discuss new discoveries and problems, exchangeviews and develop plans for the future of PM2.5 and related scienceand technology. This not only benefits the specialists but it also increasespublic awareness and knowledge and its diverse applications to importantsocietal issues involving the environment, health, energy, materials and otherfacets of our life.