Abstract
The changes of the atmospheric particles mass concentration, their pollution condition, and their relationships to visibility have been studied by using the continuous concentration data of monitoring instrument GRIMM180 from Anshan air component monitoring station in 2014. The results show that the mean mass concentrations about PM10 and PM2.5 are respectively 0.077 mg/m3 and 0.049 mg/m3, and their daily average concentration has a large variation range. The daily variation of the mass concentration is characterized by a pronounced double-peak pattern, with peak concentration during 7:00∼9:00 AM and 21:00∼22:00 PM, and low during 3:00∼5:00 and 14:00∼16:00. The ratio above air quality standard about PM10 daily average concentration is 9.07%, and the atmospheric particles exist mainly in the form of fine particles. The atmospheric particles mass concentration and the visibility show negative correlation, and the finer the particles are, the more they affect visibility.
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