厦门海陆风环流特征与环境空气质量影响研究

根据气象观测资料,研究本市海陆风特征及其变化过程.结果表明,海陆风环流方向产生较大变化,环流途径由1986年的台湾海峡→厦门岛→工业区→厦门西海域→台湾海峡,转变为2013年的台湾海峡→厦门岛→工业区→鼓浪屿→厦门岛→台湾海峡.统计了1989年-2015年鼓浪屿测点SO2、NO2、PM10浓度占市区平均浓度的比例,结果发现该比例随环流途径的变化而不断升高,海陆风环流特征的变化使得鼓浪屿环境空气质量受工业污染影响的程度加大,治理工业污染对改善鼓浪屿环境空气质量具有重要意义.

Characteristics of Sea-land Wind circulation andIts Influence on Ambient Air Quality in Xiamen

Based on the changes of wind fields in Xiamen, the characteristics and changing processes of sea-land wind circulation were analyzed.The results showed that the direction of sea-land circulation changed greatly.The circulation changed from the Taiwan Strait → Xiamen Island → Industrial district → western Xiamen Harbor → the Taiwan Strait in 1986 to the Taiwan Strait → Xiamen Island → Industrial district → Gulangyu → Xiamen Island → the Taiwan Strait in 2013.Judging from the change of the circulation, the influence of industrial pollution on Gulangyu is increased.Therefore, the concentrations ratio of SO2, NO2 and PM10 between Gulangyu and downtown from 1989 to 2015 is calculated, because of the changes of sea-land wind circulation, Gulangyu has been affected more obviously by industrial pollution.Control industrial pollution is of great significance to improving the ambient air quality at Gulangyu.