What is the phenomenon of road heat waves?
1 Answers
Road heat waves are a natural phenomenon, caused by overheated wind currents. When this phenomenon occurs in urban areas, it is referred to as the heat island effect. Due to high population density and numerous buildings in cities, the wind carries along with it the low-pressure air currents. Additionally, because of the radiation surfaces, the heat properties of the wind are intensified, resulting in the wind being hot. Below are the requirements of the China VI emission standards: The China VI standards: The China VI standards are extremely high, ranking among the strictest motor vehicle emission standards globally. Compared to the China V emission regulations, China VI adds limits on nitrous oxide and particulate matter particle counts. Moreover, under cold start conditions, carbon monoxide content must be reduced by 50%, hydrocarbon content by 30%, and carbon monoxide content by 30%. After the implementation of the China VI standards, China V vehicles can still be driven on the road: Even with the implementation of the China VI standards, China V vehicles can still be driven, though registering and licensing them may become more difficult. For those China V vehicles in stock, they will definitely be sold at discounted prices, and the closer it gets to the implementation date of China VI, the cheaper they will become.
