State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Environ Int. 2023 Feb;172:107799. doi: 10.1016/j.envint.2023.107799. Epub 2023 Feb 4.
The soil environment is one of the main places for the generation, emission, and absorption of various atmospheric pollutants, including nitrogen oxides (NO) and volatile organic compounds (VOCs), which are the main chemical precursors for the formation of ground-level ozone. Ground-level ozone pollution has become a concerning environmental problem because of the harm it poses to human health and the surrounding ecological environment. However, current studies on chemical precursors of ozone mainly focus on emissions from industrial sources, forest vegetation, and urban vehicle exhaust; by contrast, few studies have examined the role of the soil environment on NO and VOCs emissions. In addition, the soil environment is complex and heterogeneous. Agricultural activities (fertilization) and atmospheric deposition provide nutrients for the soil environment, with a significant effect on NO and VOCs emissions. There is thus a need to study the environmental factors related to the release of NO and VOCs in the soil to enhance our understanding of emission fluxes and the types of NO and VOCs in the soil environment and aid efforts to control ground-level ozone pollution through appropriate measures such as management of agricultural activities. This paper reviews the generation of NO and VOCs in the soil environment and the effects of various environmental factors on this process. Some suggestions are provided for future research on the regulation of NO and VOCs emissions in the soil environment and the ability of the soil environment to contribute to ground-level ozone pollution.
土壤环境是各种大气污染物（包括氮氧化物（NO）和挥发性有机化合物（VOCs））产生、排放和吸收的主要场所之一，它们是形成地面臭氧的主要化学前体。由于地面臭氧污染对人类健康和周围生态环境造成的危害，它已成为一个令人关注的环境问题。然而，目前关于臭氧化学前体的研究主要集中在工业源、森林植被和城市车辆尾气的排放上；相比之下，很少有研究考察土壤环境对 NO 和 VOCs 排放的作用。此外，土壤环境复杂且具有异质性。农业活动（施肥）和大气沉积为土壤环境提供了养分，对 NO 和 VOCs 的排放有显著影响。因此，需要研究与土壤中 NO 和 VOCs 释放有关的环境因素，以增强我们对排放通量和土壤环境中 NO 和 VOCs 类型的理解，并通过适当的措施（如农业活动管理）来控制地面臭氧污染。本文综述了土壤环境中 NO 和 VOCs 的生成以及各种环境因素对这一过程的影响。针对未来研究土壤环境中 NO 和 VOCs 排放的调控以及土壤环境对地面臭氧污染的贡献能力，提出了一些建议。
