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| DOI | 10.1021/acs.est.1c00553 |
| Declining Oxygen Level as an Emerging Concern to Global Cities | |
| Wei, Yun; Wu, Jianguo; Huang, Jianping; Liu, Xiaoyue; Han, Dongliang; An, Linli; Yu, Haipeng; Huang, Jiping | |
| 通讯作者 | Huang, JP (通讯作者)，Lanzhou Univ, Coll Atmospher Sci, Collaborat Innovat Ctr Western Ecol Safety, Lanzhou 730000, Peoples R China. |
| 发表日期 | 2021 |
| ISSN | 0013-936X |
| EISSN | 1520-5851 |
| 起始页码 | 7808 |
| 结束页码 | 7817 |
| 卷号 | 55期号:12 |
| 英文摘要 | Rising CO2 concentration and temperatures in urban areas are now wellknown, but the potential of an emerging oxygen crisis in the world's large cities has so far attracted little attention from the science community. Here, we investigated the oxygen balance and its related risks in 391 global large cities (with a population of more than 1 million people) using the oxygen index (O-I), which is the ratio of oxygen consumption to oxygen production. Our results show that the global urban areas, occupying only 3.8% of the global land surface, accounted for 39% (14.3 +/- 1.5 Gt/yr) of the global terrestrial oxygen consumption during 2001-2015. We estimated that 75% of cities with a population more than 5 million had an O(I )of greater than 100. Also, cities with larger O-I values were correlated with more frequent heatwaves and severe water withdrawals. In addition, cities with excessively large O-I values would likely experience severe hypoxia in extremely calm weather. Thus, mitigation measures should be adopted to reduce the urban O-I in order to build healthier and more sustainable cities. |
| 关键词 | SUSTAINABLE DEVELOPMENTATMOSPHERIC OXYGENCARBONCONSUMPTIONPOPULATIONCOMBUSTIONEMISSIONSSCIENCEGOALSOCEAN |
| 英文关键词 | oxygen index; large cities; hypoxia; heatwave; water shortages |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Environmental Sciences |
| WOS记录号 | WOS:000663939900006 |
| 来源期刊 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/254482 |
| 作者单位 | [Wei, Yun; Huang, Jianping; Liu, Xiaoyue; Han, Dongliang; An, Linli] Lanzhou Univ, Coll Atmospher Sci, Collaborat Innovat Ctr Western Ecol Safety, Lanzhou 730000, Peoples R China; [Wu, Jianguo] Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA; [Wu, Jianguo] Arizona State Univ, Sch Sustainabil, Tempe, AZ 85287 USA; [Yu, Haipeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730020, Peoples R China; [Huang, Jiping] Enlightening Biosci Res Ctr, Mississauga, ON L4X 2X7, Canada |
| 推荐引用方式 GB/T 7714 | Wei, Yun,Wu, Jianguo,Huang, Jianping,et al. Declining Oxygen Level as an Emerging Concern to Global Cities[J]. 中国科学院西北生态环境资源研究院,2021,55(12). |
| APA | Wei, Yun.,Wu, Jianguo.,Huang, Jianping.,Liu, Xiaoyue.,Han, Dongliang.,...&Huang, Jiping.(2021).Declining Oxygen Level as an Emerging Concern to Global Cities.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(12). |
| MLA | Wei, Yun,et al."Declining Oxygen Level as an Emerging Concern to Global Cities".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.12(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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