北京气传花粉浓度变化特征及其与气象条件的关系

doi:10.3969/j.issn.1673-503X.2023.05.011

Abstract

Abstract:

Using daily pollen concentration samples from 12 stations in Beijing during March 1 to September 30, from 2012 to 2020, spatial-temporal distribution characteristic of pollen concentration was analyzed.The results show that there are two peaks of pollen concentration with one in the spring pollen period (March-May) and the other in the summer-autumn pollen period (Autumn-September).The pollen concentration peak in spring is 3.3 times higher than that in summer and autumn.Pollen concentrations of 75% stations show an increasing trend during the studied period.The pollen concentration is lower during the intermittent period with its unobvious increasing trend.While in spring and summer-autumn, pollen concentration is higher with its obvious increasing trend.As a whole, daily average temperature, daily average relative humidity, and total daily precipitation are negatively correlated with pollen concentration.This result is consistent among the 12 stations.In addition, there is a stable correlation between wind speed, humidity, rainfall, and pollen concentration.However, the correlations between temperature, air pressure, and pollen concentration in different periods are more complicated, or even opposite.

Key words: Observed period of pollen, Pollen concentration, Meteorological factors

CLC Number:

P463.1

Jiang JIANG,Yuan QIAO,Chengying REN,Zhi JIANG,Huanling YOU,Caihua YE. Characteristics of airborne pollen concentration in Beijing and its relationship with meteorological factors[J]. Journal of Meteorology and Environment, 2023, 39(5): 91-98.

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References 22

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站点	春季花粉期峰值/粒·(1000 mm²)^-1	春季花粉期峰值日	夏秋季花粉期峰值/粒·(1000 mm²)^-1	夏秋季花粉期峰值日	春季花粉期与夏秋季花粉期峰值的比值
延庆	430	4月3日	604	8月28日	0.7
昌平	1564	3月18日	430	9月3日	3.6
朝阳	665	3月28日	817	8月29日	0.8
房山	8584	3月22日	599	9月10日	14.3
丰台	1701	3月18日	569	9月1日	3.0
海淀	1380	3月17日	409	8月28日	3.4
怀柔	3193	3月21日	450	9月3日	7.1
门头沟	3661	3月18日	511	9月5日	7.2
密云	1673	3月21日	516	9月1日	3.2
平谷	613	3月21日	433	8月28日	1.4
石景山	5207	3月18日	1002	9月1日	5.2
顺义	783	3月18日	617	9月1日	1.3
全市平均	1593	3月18日	482	9月1日	3.3

站点	春季花粉期	间歇期花粉期	夏秋季花粉期
延庆	-2.27	-0.05	13.38
朝阳	-8.22	-1.76	-43.19
丰台	52.26	3.81^*	8.07
顺义	38.23	0.46	15.82
密云	33.53	-0.20	13.07
门头沟	61.38	2.08	0.40
房山	132.35	-0.79	9.38
海淀	13.31	1.06	18.12
怀柔	51.51	-1.74	5.70
石景山	90.71	-0.14	25.38
平谷	2.89	-1.15^*	-3.56
昌平	-18.06	-1.33^*	-18.00^*

站点	风速	气温	相对湿度	气压	降水量
顺义	0.07^*	-0.09^*	-0.16^*	0.10^*	-0.06^*
海淀	0.20^*	-0.22^*	-0.27^*	0.17^*	-0.07^*
延庆	0.12^*	-0.03	-0.18^*	0.03	-0.07^*
密云	0.11^*	-0.10^*	-0.18^*	0.06^*	-0.03
怀柔	0.14^*	-0.12^*	-0.17^*	0.08^*	-0.04
平谷	0.14^*	-0.11^*	-0.21^*	0.07^*	-0.07^*
朝阳	0.11^*	-0.05^*	-0.11^*	0.07^*	-0.06^*
昌平	0.06^*	-0.14^*	-0.18^*	0.10^*	-0.05^*
门头沟	0.09^*	-0.08^*	-0.10^*	0.04^*	-0.03
石景山	0.19^*	-0.17^*	-0.19^*	0.10^*	-0.04
丰台	0.15^*	-0.16^*	-0.22^*	0.11^*	-0.06^*
房山	0.06^*	-0.06^*	-0.09^*	0.04	-0.02

站点	风速	气温	相对湿度	气压	降水量
顺义	0.02	0.00	-0.11^*	0.03	-0.05
海淀	0.08	-0.10	-0.17^*	0.12^*	-0.07
延庆	0.02	0.11^*	-0.09	-0.07	-0.04
密云	0.04	0.01	-0.13^*	-0.02	-0.04
怀柔	0.08	-0.01	-0.11^*	0.01	-0.03
平谷	0.10	0.07	-0.16^*	-0.06	-0.01
朝阳	0.10	-0.02	-0.16^*	0.00	-0.08
昌平	0.00	-0.06	-0.14^*	0.04	-0.04
门头沟	0.06	-0.04	-0.05	0.00	-0.03
石景山	0.16^*	-0.08	-0.14^*	0.04	-0.04
丰台	0.06	-0.03	-0.14^*	0.06	-0.04
房山	0.03	-0.03	-0.07	0.02	-0.02

站点	风速	气温	相对湿度	气压	降水量
顺义	0.12^*	0.13^*	-0.17^*	-0.09	-0.09
海淀	0.16^*	0.12^*	-0.22^*	-0.11	-0.06
延庆	0.17^*	0.18^*	-0.25^*	-0.13^*	-0.06
密云	0.05	0.09	-0.12^*	-0.07	0.06
怀柔	0.03	0.09	-0.16^*	-0.04	-0.11
平谷	0.19^*	0.03	-0.22^*	-0.10	-0.07
朝阳	0.24	0.02	-0.12^*	-0.02	-0.08
昌平	0.18^*	0.12^*	-0.25^*	-0.09	-0.07
门头沟	0.16^*	0.13^*	-0.28^*	-0.04	-0.05
石景山	0.07	0.07	-0.10	-0.04	-0.05
丰台	0.18^*	0.08	-0.22^*	-0.02	-0.08
房山	0.21^*	0.09	-0.20^*	-0.08	-0.04

Characteristics of airborne pollen concentration in Beijing and its relationship with meteorological factors

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花粉期	风速	气温	相对湿度	气压	降水量
春季花粉期(3—5月)	+	-	-	+	-
夏秋季花粉期(8—9月)	+	-	-	+	-
整个花粉期(3—9月)	+	+	-	-	-
受天气影响的典型花粉浓度变化过程(2020年8月22—25日)	+	+	-	+	-

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