sea-salt aerosol

It was proved by the simulation experiment that the low concentration of NO_2 was mainly cause by the different chemical mechanism of sea-salt aerosol and nitrogen between day and night.
化學模擬試驗證明:海鹽氣溶膠與大氣氮氧化物的日夜不同機制會使青島市大氣的NO_2濃度在夜間有顯著的降低。