Atmospheric Amines: Advances in Analytical Techniques, Emission Inventories, Regional Pollution, and Roles in New Particle Formation

• Published in: Current pollution reports Vol. 11; no. 1; p. 31
• Main Authors: Yu, Qi, Fu, Nan, Lu, Jiajia, Zhang, Yukai, Du, Wei, Wang, Junfeng
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 03.06.2025; Springer Nature B.V
• Subjects: Air pollution; Air quality; Amines; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Biomass energy; Chemical reactions; Chromatography; Climate change; Earth and Environmental Science; Emission inventories; Emission measurements; Emissions; Environment; Environmental Law/Policy/Ecojustice; Industrial Pollution Prevention; Mass spectrometry; Mass spectroscopy; Measurement techniques; Monitoring/Environmental Analysis; Nucleation; Organic compounds; Outdoor air quality; Particulate emissions; Particulate matter; Pollution; Public health; Review; Scientific imaging; Sulfuric acid; Waste Water Technology; Water Management; Water Pollution Control; China; Atmospheric behavior; Amines; NPF; Regional pollution; Emission inventories
• ISSN: 2198-6592; 2198-6592
• DOI: 10.1007/s40726-025-00364-8

Purpose of Review Amines, as atmospheric pollutants, significantly impact air quality, climate change, and human health because they readily react with acidic gases in the atmosphere to form secondary organic aerosols (SOA) and participate in the formation of fine particulate matter (PM 2.5 ). This review summarizes the research progress on atmospheric amine, including analytical methods, emission inventory, and regional pollution, as well as their significance in the course of new particle formation (NPF). Recent Findings At present, the detection methods for amines mainly include chromatography and mass spectrometry, among which the development of online measurement technology helps to improve time resolution and research depth. The severe lack of field-measured emission factors has hindered the model’s simulation of amine effects. The concentration and main components of particulate amines show significant differences in different regions and seasons. The sulfuric acid (H 2 SO 4 )-H 2 O-amine ternary nucleation theory is widely recognized, but field measurements have also revealed the influence of other organic compounds. In general, amines have a critical impact on atmospheric chemical reactions, particularly their support in the generation of new particles and SOA, which makes them a vital factor in climate transform research. Summary This review not only provides the latest research findings on amines but also points out the deficiencies in current studies. It emphasizes the need for systematic research on the emissions, the mechanisms of NPF. The ultimate goal is to contribute to mitigating atmospheric pollution and protecting public health.