Int J Biometeorol:中国北京青蒿花粉传输路径和来源研究

2018-01-20 AlexYang MedSci原创

青蒿花粉是中国北京过敏性鼻炎的一种重要过敏原。最近,有研究人员为了探究青蒿花粉的传播途径和来源地区,2016年在城市和郊区位置,利用了七天孢子容量测定收集器监测了日常花粉浓度。研究人员还使用0.5° × 0.5°GADS气象数据,利用HYUSPLIT模型分析了24小时和96小时的后向轨迹和聚类分析,从而来鉴定青蒿花粉的传播路径。研究人员还推算了潜在来源贡献因子(PSCF)和浓度权重轨迹法(CWT)

青蒿花粉是中国北京过敏性鼻炎的一种重要过敏原。最近,有研究人员为了探究青蒿花粉的传播途径和来源地区,2016年在城市和郊区位置,利用了七天孢子容量测定收集器监测了日常花粉浓度。研究人员还使用0.5° × 0.5°GADS气象数据,利用HYUSPLIT模型分析了24小时和96小时的后向轨迹和聚类分析,从而来鉴定青蒿花粉的传播路径。研究人员还推算了潜在来源贡献因子(PSCF)和浓度权重轨迹法(CWT)从而进一步鉴定在局部、区域和大范围规模上的主要潜在来源地区。

研究结果表明,城市和郊区之间的青蒿花粉浓度具有显著差异,归因于植物分布差异和取样高度的差异。上述的差异还归因于花粉的释放和空气的移动,从而造成的花粉传播。在局部或者区域规模上,北京市西北部、河北省和内蒙古北部和西北部源地区影响了青蒿花粉的主要传播途径。远程规模上的传播途径和它的相关源区域扩展到了内蒙古的西北部。另外,区域规模的受风和高度影响的青蒿花粉传播在郊区中要比城市更深。

原始出处:

Qin X, Li Y, Sun X et al. Transport pathway and source area for Artemisia pollen in Beijing, China. Int J Biometeorol. Dec 2017.

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    2018-07-15 sunylz
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    2018-12-19 一闲
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