The mass concentrations of the three pollutants all abruptly change at the distance of 50~ 60 km from the centers of districts, which means that the characteristic distance of air pollutants distribution in Chongqing City is 50~ 60 km.

  • 3种污染物质量浓度都在离行政中心50~60km的地带发生明显变化,由此得出目前重庆市大气污染物空间分布的特征距离为50~60km。

  • 互联网摘选 2025-01-19 23:23:33

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