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目的 探讨空气中花粉含量与气象要素的关系。方法 对 1983～ 1986年北京城区花粉暴片监测计数资料与同期北京观象台气象要素资料进行了相关与单变量统计分析。结果 春季花粉含量与平均气温的相关系数为 0 .70 31(P <0 .0 0 5 ) ,与日照实数的相关系数为 0 .5 311(P <0 .0 5 ) ;夏、秋季花粉含量与平均气温、水汽压、相对湿度、降水量的相关系数分别为 0 .75 4 3、0 .776 2、0 .76 34(P<0 .0 0 1)、0 .6 4 32 (P <0 .0 1)和风速呈负相关 (r=- 0 .6 14 2 ,P <0 .0 2 )。单变量分析也提示 :春季花粉含量与平均气温和日照实数 ,夏末、秋初花粉含量与平均气温、水汽压、相对湿度、降水量、风速 ,P值均小于 0 .0 5 ,有统计学意义。结论 北京城区空气中花粉含量呈现两个高峰 ,春季 (4月 )及夏、秋季 (8～ 9月 ) ,此两季的花粉含量与气象要素有关
Objective To investigate the relationship between pollen content in air and meteorological factors. Methods The data of multivariate monitoring in Beijing urban areas from 1983 to 1986 were compared with univariate statistics of meteorological elements of Beijing Observatory in the same period. Results The correlation coefficient between the spring pollen content and the average temperature was 0.70 31 (P <0.05), and the correlation coefficient with the real sunshine number was 0.531 (P <0.05). The pollen content in summer and autumn The correlation coefficients with mean air temperature, vapor pressure, relative humidity and precipitation were 0 .75 4 3,0 .776 2,0 .76 34 (P <0 .001) and 0.664 (P < 0 .0 1) was negatively correlated with wind speed (r = - 0.142 2, P <0. Univariate analysis also suggested that the spring pollen content, the average temperature and the sunshine real number, the pollen content and the mean temperature, the vapor pressure, the relative humidity, the precipitation, the wind speed and the P value in the late summer and early autumn were all less than 0.05. significance. Conclusions The pollen content in urban air of Beijing shows two peaks. In spring (April), summer (August) and autumn (August - September), the pollen content in these two seasons is related to meteorological factors