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Updated: Jan 9, 2026

Automated, High-resolution Mobile Collection System for the Nitrogen Isotopic Analysis of NOx
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Published on: December 20, 2016

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中国大气NO2和NH3的空间驱动因素:解开源与过程驱动的控制

Shihui Wang1, Xia Zhao2, Aijun Xing2

  • 1State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China.

Environmental pollution (Barking, Essex : 1987)
|November 29, 2025
PubMed
概括

空气质量管理需要了解二氧化 (NO2) 和氨 (NH3) 驱动因素. 由于排放控制,NO2减少,而NH3保持稳定,需要基于农业和生态系统的战略.

关键词:
氨 (NH ((3)) 是一种氨.驱动器归属属性 驱动器归属性可以解释的机器学习二氧化 (NO2)) 是一种二氧化.时间空间的变化.

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Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of  ammonia, ammonium ions, nitrate, nitrite, or  nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
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All meta-directing substituents are deactivating groups. These substituents withdraw electrons from the aromatic ring, making the ring less reactive toward electrophilic substitution. For example, the nitration of nitrobenzene is 100,000 times slower than that of benzene because of the deactivating effect of the nitro group. The first step in an electrophilic aromatic substitution is the addition of an electrophile to form a resonance-stabilized carbocation. The energy diagrams for...
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