北京城区空气中花粉含量与气象要素的关系初探

Preliminary approach of the relationship between Airborne pollen amount and meteorological factors in Beijing urban area

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 ) 。

Objective To evaluate the relationship between air borne pollen amount and meteorological factors in Beijing urban area. Methods We carried out correlation coefficient and univariate analysis on the pollen amount and its related meteorological factors during the time of 1983 1986 in Beijing urban area. Results The correlation coefficient for spring pollen amount with average temperature is 0.7031 ( P <0.005); with factual sunlight is 0.5311( P <0.05). And summer/fall pollen amount compared with average temperature, air pressure, humidity and water precipitate showed strong correlation as order by 0.7543,0.7762,0.7634 ( P <0.001) and 0.6432 , compared with wind speed showed negative( r =-0.6142). Univariate analysis suggested the same results as correlation coefficient analysis. Conclusions There are two peak seasons of airborne pollen amount in Beijing urban area such as April, and August, September. And the pollen amount are statistically significance compared with meteorological factors such as temperature, factual sunlight, air pressure, humidity, wind speed and water precipitate.