Group 1 - The core point of the article discusses the traffic restrictions in Zhengzhou during the New Year and New Year's Day holidays [1] - The restricted area includes all roads within the East Third Ring (107 auxiliary road), South Third Ring, West Third Ring, and North Third Ring, excluding the roads themselves [1] - The traffic restriction is based on the last digit of the vehicle license plate, with two numbers restricted each working day [2] Group 2 - The specific traffic restriction schedule for weekdays is as follows: Monday (1 and 6), Tuesday (2 and 7), Wednesday (3 and 8), Thursday (4 and 9), and Friday (5 and 0) [3] - During the New Year holiday (January 1-3), there are no restrictions on vehicle license plate numbers within the Third Ring of Zhengzhou [4] - On New Year's Eve (December 31), traffic restrictions will be in effect from 7:00 AM to 9:00 PM, and the first working day after the holiday (January 4) will restrict vehicles with license plate endings of 5 and 0 [4]

Group 1 - Chengdu has issued a yellow alert for heavy pollution starting from November 28, 2025, due to expected deterioration in air quality across the basin, particularly in the Chengdu Plain, southern Sichuan, and northeastern Sichuan cities [1][2] - The alert is based on assessments from provincial ecological and meteorological departments, indicating a risk of light to moderate particulate matter pollution [1][2] - The yellow alert is part of the emergency response plan for heavy pollution weather, which has been revised for 2024 [1] Group 2 - During the alert period, there is a risk of dust storms originating from southwestern Mongolia affecting the Sichuan basin, with potential light to moderate PM10 pollution in northeastern Sichuan and northern Chengdu [2] - Vehicle restrictions will be implemented on weekdays from 6:00 AM to 10:00 PM, prohibiting certain vehicles based on their registration dates and emission standards within the fourth ring road [2]