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旧金山疫情封锁，空气污染下降！都是因为汽车上街少了的缘故！
（ABC7）It's the environmental tradeoff we make every day. The Bay Area's popular commuter corridors are also air pollution alleys. But now, a new study is pointing out the power of a clean solution.
这是我们每天都在做的环境权衡。旧金山湾区受欢迎的通勤者走廊也是空气污染的小巷。但现在，一项新的研究指出了清洁解决方案的力量。
"Yes, so we've been thinking about this as a model for the electric car," says professor Ron Cohen, Ph.D., of the University of California, Berkeley.
加州大学伯克利分校的Ron Cohen博士说:“是的，所以我们一直在考虑把它作为电动汽车的一个模型。”
Professor Cohen and his team have spent nearly a decade building out a network of CO2 sensors known as BEACON. Scattered across the interior Bay Area, they can measure carbon dioxide and other pollutants on a micro level. And early this year, they had an historic opportunity, as the Bay Area began the COVID-19 shelter-in-place.
科恩教授和他的团队花了近十年的时间建立了一个被称为BEACON的二氧化碳传感器网络。它们散布在旧金山湾区的内部，可以从微观层面测量二氧化碳和其他污染物。今年早些时候，他们迎来了一个历史性的机遇，旧金山湾区启动了COVID-19就地保护计划。
Air quality around the Bay Area was exceptionally good Thursday, as streets and highways around the region were practically empty amid the coronavirus pandemic.
旧金山湾区周四的空气质量格外好，因为在新冠病毒大流行期间，该地区周围的街道和高速公路几乎空无一人。
"And we saw this incredible change. The amount of CO2 released into the atmosphere in the Bay Area was 25% lower in that period than just before the lockdown six weeks before," says Cohen.
“我们看到了这个令人难以置信的变化。旧金山湾区排放到大气中的二氧化碳量比六周前封锁前下降了25%。”科恩说。
But Cohen believes the rubber really meets the road in another set of data. It shows what that drop looked like along major Bay Area freeways like interstate 880. With the lighter concentration potentially mirroring the same positive effect that electric vehicles could have on those same corridors.
但科恩认为，在另一组数据中，情况确实如此。它显示了在主要的湾区高速公路上，比如州际公路880号的下降情况。较轻的集中度可能会反映出电动汽车对这些可能产生的同样积极的影响。
"So the thing about electric cars is it's especially easy to think about. The emissions from an electric car are at a power plant far away. They have no combustion related emissions on the road. So an electric car on the road is the same as no car on the road," Cohen points out.
“关于电动汽车的问题是。电动汽车排放的废气来自遥远的发电厂。它们在道路上没有与燃烧相关的排放。所以路上有一辆电动汽车和路上没有汽车是一样的。
He believes the monitoring system is powerful, because it can hone in not only on freeways but also adjacent neighborhoods, many of them low income. Providing one more argument for the environmental benefit electric cars could provide to the Bay Area.
他相信这个监控系统是强大的，因为它不仅可以监视高速公路，还可以监视邻近的社区，其中许多社区是低收入者。电动汽车可以为湾区带来的环境效益提供了又一个论据。
Professor Cohen and his team at the University of California have just begun a project to install a similar sensor system in Glasgow Scotland. The goal is to have it operational in time for the United Nations Climate Change Conference in that city in 2021.
科恩教授和他在加利福尼亚大学的团队刚刚开始在苏格兰格拉斯哥安装一个类似的传感器系统的项目。其目标是在2021年联合国气候变化会议之前使其投入使用。
原链接：
https://abc7news.com/co2-covid-19-lockdown-carbon-emission-traffic-uc-berkeley-study/7907002/
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发表于 2020-11-16 13:44:49
发表于 2023-1-6 02:26:48