The team experimented with three different levels over the course of a standard 9-to-5 routine: 550 ppm (similar to outdoor levels), 945 ppm (what you would expect in most offices) and 1,400 ppm (denser but still plausible for many offices).
团队按照标准的朝九晚五工作时间准备了三个不同级别的环境:550 ppm(跟室外的浓度差不多),945 ppm(跟大多数办公室差不多),和1400 ppm(更浓,但是相当多的办公室都是这样)。
By giving the participants a cognitive test at the end of the day, they were able to spot a clear trend between CO2 levels and brain function. Those working with 945 ppm of carbon dioxide in the air averaged scores that were 15 percent lower than those in a 550 pm room. The unfortunate workers who had to handle levels of 1,440 ppm, meanwhile, performed 50 percent worse than the 550 ppm group. People's ability to use information, respond to a crisis and strategise were hit particularly hard, the researchers said.
在一天结束后,参与者要进行认知测验。在测验中,不同的二氧化碳浓度对大脑功能产生了明显的影响。在二氧化碳浓度为945 ppm环境中工作的人的平均分比550 ppm的要低15%。那些不幸呼吸着1440 ppm的家伙的平均分只有550 ppm的50%。研究者们说,尤其是使用信息,应对危机和策略分析的能力被极大影响了。
Indoor concentrations are affected by many different factors: not just the ventilation installed inside the building and how many windows are open, but also the number of people in the room - because we breath out carbon dioxide - and even how much CO2 is floating around in the neighbouring streets.
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2020-09-15
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