大气氨的来源、变化及对空气质量的影响

IF 6.4 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Current Pollution Reports Pub Date : 2024-01-19 DOI:10.1007/s40726-023-00291-6
Ziru Lan, Weili Lin, Gang Zhao
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引用次数: 0

摘要

综述目的 作为大气中最丰富的碱性痕量气体,NH3 在大气颗粒物的形成和生态系统的氮循环中发挥着至关重要的作用。过去几十年来,全球的 NH3 排放量一直在增加。为了更清楚地了解大气中的 NH3,本文系统回顾了有关大气中 NH3 的来源和变异性的文献,并描述了大气中的 NH3 对 PM2.5 的贡献。最近的研究结果(1) 大气中 NH3 的主要排放源是农业;其他来源包括燃烧相关排放以及土壤和海洋的挥发。不过,最近的研究显示,城市地区的非农业来源发挥了主要作用。(2)大气中 NH3 的时空变化非常复杂,其机制也不完全清楚。(3) 大气中的 NH3 可参与多种大气化学过程和细颗粒物的形成。然而,在了解大气中 NH3 的来源、趋势和影响方面仍然存在很大的知识差距。因此,必须进一步研究大气中 NH3 浓度的影响因素和环境效应,为制定有效的 NH3 控制策略提供科学依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Sources, Variations, and Effects on Air Quality of Atmospheric Ammonia

Purpose of Review

As the most abundant alkaline trace gas in the atmosphere, NH3 plays a critical role in the formation of atmospheric particulate matter and nitrogen cycling in ecosystems. NH3 emissions have been increasing globally over the past few decades. To provide a clearer understanding of atmospheric NH3, this paper presents a systematic review of the literature on the sources and variability of atmospheric NH3 and describes the contribution of atmospheric NH3 to PM2.5.

Recent Findings

(1) The primary source of atmospheric NH3 emissions is agriculture; other sources include combustion-related emissions and volatilization from soil and oceans. However, recent studies have revealed the major role of nonagricultural sources in urban areas. (2) The spatiotemporal variability of atmospheric NH3 is complex, and its mechanisms are not entirely clear. (3) Atmospheric NH3 can participate in multiple atmospheric chemical processes and to the formation of fine particulate matter.

Summary

This review summarizes the latest knowledge on the sources and variability of atmospheric NH3 and highlights the necessity of controlling atmospheric NH3 emissions. However, significant knowledge gaps still exist in understanding the sources, trends, and effects of atmospheric NH3. Therefore, further research is essential to investigate the influencing factors and environmental effects of atmospheric NH3 concentrations, providing a scientific basis for the development of effective NH3 control strategies.

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来源期刊
Current Pollution Reports
Current Pollution Reports Environmental Science-Water Science and Technology
CiteScore
12.10
自引率
1.40%
发文量
31
期刊介绍: Current Pollution Reports provides in-depth review articles contributed by international experts on the most significant developments in the field of environmental pollution.By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to identification, characterization, treatment, management of pollutants and much more.
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