HIGHLIGHTS
- who: Hongtao Chang et al. from the Shaanxi Provincial Major Laboratory for Highway Bridge and Tunnel, School of Highway, Chang'an University, Xi'an, China have published the paper: Evaluation of Air Pollutants in Extra-Long Road Tunnel with the Combination of Pollutants Nonlinear Evolution and Machine Learning Method, in the Journal: Sustainability 2022, 10710 of 31/01/2021
- what: The bidirectional effect of traffic was the main reason for this phenomenon.
- how: The local precipitation data were obtained from the China National Environmental Science Center. The pollutant concentration data is obtained but . . .
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