Method:The diffusions pattern of airborne pollens in two areas of Chongqing was investigated for one year from October 1999 to September 2000.

• 方法:在重庆市区及近郊设两个暴片点进行空气中的花粉取样;按国内统一标准进行花粉变应原浸液皮肤敏感试验及结果判定;