说明：  a.数据分析为解决空气污染管理问题提供了一种有前途的工具。当知道气象中心可以免费和以名义成本提供数据集时，顺便预测空气质量指数（AQI）的必要性更为合适。一旦为提取可用的大量数据集并从中获得有用的知识而构建的有效工具可以帮助检测su中暴露人员的漏洞
(a. Data analytics provides a promising tool for solving air pollution management problems. The necessity for predicting Air Quality Index (AQI) incidentally is more suitable when it is known that data sets are available for free of charge and at a nominal cost from meteorological centers. An efficient tool once built for abstracting the large quantities of data sets that are available and deriving useful knowledge from them can help to detect the vulnerability of the exposed people in the su)