Air pollution from nitrogen dioxide has fallen by an estimated 40% in three European cities, according to new satellite data released by the European Space Agency (ESA), coinciding with a widespread lockdown to curb the spread of the coronavirus.
欧洲航天局发布的新的卫星数据显示,为了阻止冠状病毒传播多地封城期间,据估计在三个欧洲城市中,二氧化氮造成的空气污染下降了40%。
The space agency’s Copernicus Sentinel-5P satellite mission on Friday released three composite images showing nitrogen dioxide concentrations in the period March 14-25 over France, Spain and Italy, compared to the monthly average of concentrations from 2019.
欧洲航天局的哥白尼哨兵-5p卫星任务在周五发布了三个合成图像,显示了3月14日至25日期间法国、西班牙和意大利的二氧化氮浓度,与2019年的月平均浓度做了对比。
“This is a first level estimate; some of these values have gone down by about 40% of the normal value... so a very drastic decrease,” Josef Aschbacher, ESA Director of Earth Observation Programmes, told R--euters via a video call.
欧洲航天局地球观测项目主任Josef Aschbacher在视频通话中对《路--透社》说:“这是一级估值,其中一些数值与正常值相比下降了约40%,下降幅度竟如此之大。”
Researchers studying the impact of emissions from industry and transport on climate change and human health are scrambling to understand the possible implications of the coronavirus pandemic as economies slow, flights are disrupted and quarantines imposed.
【卫星照片显示:全欧洲空气污染骤降,全因新冠隔离】相关文章:
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