Validation of PM10and PM2.5early alert in Bogota, Colombia, through the modeling software WRF-CHEM
Validation of PM10and PM2.5early alert in Bogota, Colombia, through the modeling software WRF-CHEM
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DOI：
10.1007/s11356-019-06997-9
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发表时间：
2020-03-07
影响因子：
5.8
通讯作者：
Ballen Segura, Miguel
中科院分区：
文献类型：
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作者：
Casallas, Alejandro;Celis, Nathalia;Ballen Segura, Miguel
来自哥伦比亚波哥大的空气质量数据显示，该市的颗粒物（PM）水平很高，这经常给人们带来呼吸问题，并给政府带来高昂的经济成本。自2016年以来，波哥大市的空气质量通过波哥大空气质量指数（IBOCA）进行测量，该指数是空气污染造成的环境风险的指标。然而，波哥大现有的技术工具还不足以产生PM（10）和PM2.5的早期预警。目前，只有在测量到的PM值超过一定标准（例如，37 μ g/m(3)）时才会发布警报，但没有足够的预期来有效地保护人群。有必要在波哥大建立早期空气质量警报系统，以便提供信息，改进首都地区的风险管理方案。本研究的目的是通过WRF-Chem模型在不同天气条件下验证2019年2月14日和15日提出的校正警报，使用三种不同的模型设置来模拟两个不同气候季节和不同分辨率下的PM（10）和PM（2.5）浓度。本文的结果对模型的两种配置进行了验证，这两种配置可用于哥伦比亚波哥大地区环境部长（SDA）的预测，以便有助于预测PM（10）和PM（2.5）产生的污染事件，作为至少提前24小时的预警系统（EAS）的工具。
Air quality data from Bogota, Colombia, show high levels ofparticulate matter(PM), which often generate respiratory problems to the population and a high economic cost to the government. Since 2016, air quality in the city of Bogota has been measured through theBogota Air Quality Index(IBOCA) which works as an indicator of environmental risk due to air pollution. However, available technological tools in Bogota are not enough to generate early alerts due to PM(10)and PM2.5. Currently, alerts are only announced once the measured PM values exceed a certain standard (e.g., 37 mu g/m(3)), but not with enough anticipation to efficiently protect the population. It is necessary to develop an early air quality alert in Bogota, in order to provide information that improves risk management protocols in the capital district. The purpose of this investigation is to validate thecorrectivealertpresented on the 14th and 15th of February of 2019, through the WRF-Chem model under different weather conditions, using three different setups of the model to simulate PM(10)and PM(2.5)concentrations during two different climatic seasons and different resolutions. The results of this article generate a validation of two configurations of the model that can be used for the Environmental Secretary of the District (SDA) forecasts in Bogota, Colombia, in order to contribute to the prediction of pollution events produced by PM(10)and PM(2.5)as a tool for anearly alert system(EAS) at least 24 h in advance.