Aerosols are suspended particles or droplets in the atmosphere (Zhang and Wang, 2011), also referred to as PM. PM2.5, which is currently receiving significant attention, is defined as that fraction of PM with an aerodynamically equivalent diameter of 2.5 μm or less (Shindell et al., 2004). PM2.5 can be inhaled into the lungs when breathing. PM2.5 can contain poisonous and harmful substances, and due to its small size and large specific surface area, its impact can be great. It also has a long residence time in the atmosphere, and it can be transported for long distances. Therefore, PM2.5 has a large influence on the atmospheric environment and on human health.