相关实验视频

Updated: May 26, 2026

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Published on: October 21, 2016

改变PM_2.5和臭氧对长江三角洲源排放的反应,使用辅助模型

Weiyang Hu¹, Yu Zhao^1,2, Ni Lu³

¹State Key Laboratory of Pollution Control and Resource Reuse and School of the Environment, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu 210023, China.

Environmental science & technology

|December 28, 2023

概括

中国的污染控制措施通过针对工业来源和车辆排放减少了PM2.5和臭氧. 氨管理是PM2.5的关键,而控制工业和车辆挥发性有机化合物对臭氧至关重要.

科学领域:

大气化学大气化学
环境科学环境科学
空气质量管理管理空气质量

背景情况:

中国的工业重组和污染控制在过去十年里对空气质量产生了重大影响.
长江三角洲 (YRDC) 是一个主要的经济中心,面临着复杂的空气污染挑战.

研究的目的:

从2010年到2020年,调查YRDC中颗粒物 (PM2.5) 和臭氧 (O3) 对各种污染物和来源的敏感度的变化.
了解不同污染控制策略对快速发展地区空气质量的有效性.

主要方法:

利用GEOS-Chem辅助模型分析不同物种和来源对PM2.5和O3的贡献.
检查了10年 (2010-2020年) 的空气质量数据和排放控制影响.

主要成果:

减少PM2.5的主要原因是控制来自工业和住宅部门的初级颗粒和二氧化硫 (SO2).
通过减少车辆中的一氧化碳 (CO) 和特定基来实现了臭氧 (O3) 减少.
臭氧形成的化学模式因从各种来源减少的氧化 (NOx) 而转向不太受挥发性有机化合物 (VOC) 的限制.
区域运输已成为PM2.5污染的重要因素.

结论:

有效的PM2.5控制需要管理农业氨 (NH3) 排放.
臭氧 (O3) 缓解需要控制工业和车辆衍生的芳,和.
从工业燃烧和运输中减少NOx既有利于PM2.5和O3的减少.
在发展中国家,协调PM2.5和O3的控制策略是复杂的,这凸显了基于科学的政策制定的需要.

关键词:

在 GEOS-Chem 担任助理.空气质量变化,空气质量变化协调污染控制工作.对排放的敏感性.

更多相关视频

Production and Measurement of Organic Particulate Matter in a Flow Tube Reactor

Production and Measurement of Organic Particulate Matter in a Flow Tube Reactor

Published on: December 15, 2018

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

Published on: September 6, 2018

相关概念视频

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

Microbes and Climate Change

Microbes and Climate Change

Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...