Ozone pollution levels have jumped over past 2 decades because of human activity

由于人类活动，臭氧污染水平在过去的20年里急剧上升

A newly published study notes that ozone pollution has risen over the past 20 years in the Northern Hemisphere.

一项新发表的研究指出，在过去的20年里，北半球的臭氧污染有所上升。

The research, published in Science Advances, notes the level of the greenhouse gas tropospheric ozone (different from the ozone layer) has risen to “very high levels” between 2011 and 2016, up significantly between 1994 and 2004.

这项发表在《科学进展》杂志上的研究指出，温室气体对流层臭氧(与臭氧层不同)的水平在2011年到2016年之间已经上升到“非常高的水平”，在1994年至2004年期间大幅上升。

“That’s a big deal because it means that as we try to limit our pollution locally, it might not work as well as we thought,” said the study’s lead author, Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder researcher Audrey Gaudel, in a statement.

这项研究的主要作者、科罗拉多大学博尔德分校环境科学研究合作研究所(CIRES)研究员奥黛丽·高德尔在一份声明中说：“这是一件大事，因为这意味着当我们试图限制本地污染时，它可能不会像我们想象的那样有效。”

The data, which was collected by commercial aircraft, showed “the most striking increases” were found in areas where levels of the greenhouse gas used to be the lowest: Malaysia/Indonesia, Southeast Asia and India.

由商用飞机收集的数据显示，“增长最显著”的地区是过去温室气体水平最低的地区:马来西亚/印度尼西亚、东南亚和印度。

“The net result of shifting anthropogenic ozone precursor emissions has led to an increase of ozone and its radiative forcing above all 11 study regions of the Northern Hemisphere, despite [nitrogen oxides] emission reductions at midlatitudes,” the researchers added in the study’s abstract.

研究人员在研究摘要中补充说：“尽管中纬度地区的氮氧化物排放量减少，但人为臭氧前体排放量的变化最终导致臭氧及其辐射力的增加，超过了北半球所有11个研究区域。”。

In all, 34,600 ozone profiles were taken from the 11 different locations. Nitrogen oxides, which are caused by human activity, such as factories and auto emissions, have dropped in Europe during the coronavirus pandemic.

总共从11个不同地点采集了34600个臭氧剖面图。在冠状病毒大流行期间，由人类活动(如工厂和汽车排放)引起的氮氧化物在欧洲已经下降。