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花粉可以致病巳早为人们所公认,在不同的地区或同一地区的不同季节,由于植物种类及分布和开花时间的不同,在空气中有不同品种的花粉飘散。其中有些花粉对人体的健康是有害的,一些人吸入某些花粉后患过敏性鼻炎、花粉症和支气管哮喘。某些人
It has long been recognized that pollen can be pathogenic. In different regions or different seasons in the same region, different varieties of pollen disperse in the air due to different plant species, distribution and flowering time. Some of these pollen are detrimental to human health. Some people suffer from allergic rhinitis, hay fever and bronchial asthma after inhaling certain pollens. some people