Quantification of atmospheric ammonia concentrations: A review of its measurement and modeling

AA Nair, F Yu - Atmosphere, 2020 - mdpi.com
Ammonia (NH3), the most prevalent alkaline gas in the atmosphere, plays a significant role
in PM2. 5 formation, atmospheric chemistry, and new particle formation. This paper reviews …

Identifying ammonia hotspots in China using a national observation network

Y Pan, S Tian, Y Zhao, L Zhang, X Zhu… - … science & technology, 2018 - ACS Publications
The limited availability of ammonia (NH3) measurements is currently a barrier to
understanding the vital role of NH3 in secondary aerosol formation during haze pollution …

Assessing contributions of agricultural and nonagricultural emissions to atmospheric ammonia in a Chinese megacity

Y Chang, Z Zou, Y Zhang, C Deng, J Hu… - … science & technology, 2019 - ACS Publications
Ammonia (NH3) is the predominant alkaline gas in the atmosphere contributing to formation
of fine particles—a leading environmental cause of increased morbidity and mortality …

Atmospheric reduced nitrogen: Sources, transformations, effects, and management

C Driscoll, JB Milford, DK Henze… - Journal of the Air & Waste …, 2024 - Taylor & Francis
Human activities have increased atmospheric emissions and deposition of oxidized and
reduced forms of nitrogen, but emission control programs have largely focused on oxidized …

Record high levels of atmospheric ammonia over India: Spatial and temporal analyses

J Kuttippurath, A Singh, SP Dash, N Mallick… - Science of the Total …, 2020 - Elsevier
Atmospheric ammonia (NH 3) is an alkaline gas and a prominent constituent of the nitrogen
cycle that adversely affects ecosystems at higher concentrations. It is a pollutant, which …

Dominant contribution of combustion-related ammonium during haze pollution in Bei**g

L Wu, P Wang, Q Zhang, H Ren, Z Shi, W Hu, J Chen… - Science bulletin, 2024 - Elsevier
Abstract Aerosol ammonium (NH 4+), mainly produced from the reactions of ammonia (NH
3) with acids in the atmosphere, has significant impacts on air pollution, radiative forcing …

A physics-based approach to oversample multi-satellite, multispecies observations to a common grid

K Sun, L Zhu, K Cady-Pereira… - Atmospheric …, 2018 - amt.copernicus.org
Satellite remote sensing of the Earth's atmospheric composition usually samples irregularly
in space and time, and many applications require spatially and temporally averaging the …

Persistent Nonagricultural and Periodic Agricultural Emissions Dominate Sources of Ammonia in Urban Bei**g: Evidence from 15N Stable Isotope in Vertical Profiles

Y Zhang, KB Benedict, A Tang, Y Sun… - … Science & Technology, 2019 - ACS Publications
Ammonia (NH3) emission reduction is key to limiting the deadly PM2. 5 pollution globally.
However, studies of long-term source apportionment of vertical NH3 are relatively limited …

Aerosol ammonium in the urban boundary layer in Bei**g: insights from nitrogen isotope ratios and simulations in summer 2015

L Wu, H Ren, P Wang, J Chen, Y Fang… - … & Technology Letters, 2019 - ACS Publications
This study investigates the concentrations and δ15N values of NH4+ in PM2. 5 at three
heights (8, 120, and 260 m) on a 325 m tower in urban Bei**g. NH4+ concentrations were …

Ammonia dry deposition in an alpine ecosystem traced to agricultural emission hotpots

D Pan, KB Benedict, LM Golston, R Wang… - Environmental …, 2021 - ACS Publications
Elevated reactive nitrogen (Nr) deposition is a concern for alpine ecosystems, and dry NH3
deposition is a key contributor. Understanding how emission hotspots impact downwind …