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Posted: 2025-04-20 02:50:54 UTC
This article contains some claims that are falsified. While not everything in the article is false, please proceed with extreme caution and verify any critical information independently.
This article contains some claims that are falsified. While not everything in the article is false, please proceed with extreme caution and verify any critical information independently.
Status
Last Updated
2025-04-20 02:51:34 UTC
Verified By
Rollup News
A second round of CO2 concentration testing on a high-speed train shows levels stabilizing around 5000ppm. A new variable was introduced: a three-minute stop at a station to observe changes in CO2 levels. During a 25-minute period including approaching, stopping at Nanjing South Station, and departing, CO2 levels dropped from 3600 to 1400 and then rose to 2000+.
CO2 concentration levels in high-speed trains
Impact of station stops on CO2 levels
Real-time monitoring of air quality in enclosed environments
Maintaining stable CO2 levels in enclosed train environments
Understanding the impact of passenger activity on air quality
Ensuring adequate ventilation during station stops