Sources of gaseous NH3 in urban Beijing from parallel sampling of NH3 and NH4+, their nitrogen isotope measurement and modeling

Regional transport in Beijing-Tianjin-Hebei region and its changes during 2014–2017: The impacts of meteorology and emission reduction

(2020) Zhaoxin Dong et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Online characterization of a large but overlooked human excreta source of ammonia in China's urban atmosphere

(2020) Sheng-Cheng Shao et al.   ATMOSPHERIC ENVIRONMENT

Non-agricultural sources dominate the atmospheric NH3 in Xi'an, a megacity in the semi-arid region of China

(2020) Can Wu et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Systematic low bias of passive samplers in characterizing nitrogen isotopic composition of atmospheric ammonia

(2020) Yuepeng Pan et al.   ATMOSPHERIC RESEARCH

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

(2019) Yunhua Chang et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Severe haze in northern China: A synergy of anthropogenic emissions and atmospheric processes

(2019) Zhisheng An et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Contributions of inter-city and regional transport to PM2.5 concentrations in the Beijing-Tianjin-Hebei region and its implications on regional joint air pollution control

(2019) Xing Chang et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Selective Collection of Particulate Ammonium for Nitrogen Isotopic Characterization Using a Denuder–Filter Pack Sampling Device

(2019) Wendell W. Walters et al.   ANALYTICAL CHEMISTRY

Estimated Contributions of Emissions Controls, Meteorological Factors, Population Growth, and Changes in Baseline Mortality to Reductions in Ambient PM2.5 and PM2.5-Related Mortality in China, 2013–2017

(2019) Dian Ding et al.   ENVIRONMENTAL HEALTH PERSPECTIVES

Aerosol Ammonium in the Urban Boundary Layer in Beijing: Insights from Nitrogen Isotope Ratios and Simulations in Summer 2015

(2019) Libin Wu et al.   Environmental Science & Technology Letters

Transition in source contributions of PM2.5 exposure and associated premature mortality in China during 2005–2015

(2019) Haotian Zheng et al.   ENVIRONMENT INTERNATIONAL

Nitrate dominates the chemical composition of PM2.5 during haze event in Beijing, China

(2019) Qingcheng Xu et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Thermodynamic Modeling Suggests Declines in Water Uptake and Acidity of Inorganic Aerosols in Beijing Winter Haze Events during 2014/2015–2018/2019

(2019) Shaojie Song et al.   Environmental Science & Technology Letters

Fossil fuel-related emissions were the major source of NH3 pollution in urban cities of northern China in the autumn of 2017

(2019) Zhongyi Zhang et al.   ENVIRONMENTAL POLLUTION

Collection of Ammonia for High Time-Resolved Nitrogen Isotopic Characterization Utilizing an Acid-Coated Honeycomb Denuder

(2018) Wendell W. Walters et al.   ANALYTICAL CHEMISTRY

Isotopic evidence for enhanced fossil fuel sources of aerosol ammonium in the urban atmosphere

(2018) Yuepeng Pan et al.   ENVIRONMENTAL POLLUTION

New insight into PM 2.5 pollution patterns in Beijing based on one-year measurement of chemical compositions

(2018) Tianyi Tan et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Source Apportionment of Aerosol Ammonium in an Ammonia-Rich Atmosphere: An Isotopic Study of Summer Clean and Hazy Days in Urban Beijing

(2018) Yuepeng Pan et al.   JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES

Isotopic advances in understanding reactive nitrogen deposition and atmospheric processing

(2018) Emily M. Elliott et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Theoretical Phase Resolved Ammonia–Ammonium Nitrogen Equilibrium Isotope Exchange Fractionations: Applications for Tracking Atmospheric Ammonia Gas-to-Particle Conversion

(2018) Wendell W. Walters et al.   ACS Earth and Space Chemistry

Validation of ammonia diffusive and pumped samplers in a controlled atmosphere test facility using traceable Primary Standard Gas Mixtures

(2018) Nicholas A. Martin et al.   ATMOSPHERIC ENVIRONMENT

Vehicle Emissions as an Important Urban Ammonia Source in the United States and China

(2017) Kang Sun et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Increased atmospheric ammonia over the world's major agricultural areas detected from space

(2017) J. X. Warner et al.   GEOPHYSICAL RESEARCH LETTERS

Fine particle pH during severe haze episodes in northern China

(2017) Mingxu Liu et al.   GEOPHYSICAL RESEARCH LETTERS

Submicrometer Particles Are in the Liquid State during Heavy Haze Episodes in the Urban Atmosphere of Beijing, China

(2017) Yuechen Liu et al.   Environmental Science & Technology Letters

Review on recent progress in observations, source identifications and countermeasures of PM2.5

(2016) Chun-Sheng Liang et al.   ENVIRONMENT INTERNATIONAL

Episode-Based Evolution Pattern Analysis of Haze Pollution: Method Development and Results from Beijing, China

(2016) Guangjie Zheng et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Fossil Fuel Combustion-Related Emissions Dominate Atmospheric Ammonia Sources during Severe Haze Episodes: Evidence from 15N-Stable Isotope in Size-Resolved Aerosol Ammonium

(2016) Yuepeng Pan et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Design and Testing of the NCTU Micro-Orifice Cascade Impactor (NMCI) for the Measurement of Nanoparticle Size Distributions

(2015) Chih-Liang Chien et al.   AEROSOL SCIENCE AND TECHNOLOGY

Human Excreta as a Stable and Important Source of Atmospheric Ammonia in the Megacity of Shanghai

(2015) Yunhua Chang et al.   PLoS One

Chemical Method for Nitrogen Isotopic Analysis of Ammonium at Natural Abundance

(2014) Dongwei Liu et al.   ANALYTICAL CHEMISTRY

Examining the transport of ammonia emissions across landscapes using nitrogen isotope ratios

(2014) J. David Felix et al.   ATMOSPHERIC ENVIRONMENT

On-Road Ammonia Emissions Characterized by Mobile, Open-Path Measurements

(2014) Kang Sun et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Isotopic evidence for a marine ammonium source in rainwater at Bermuda

(2014) K. E. Altieri et al.   GLOBAL BIOGEOCHEMICAL CYCLES

High secondary aerosol contribution to particulate pollution during haze events in China

(2014) Ru-Jin Huang et al.   NATURE

Implementation and evaluation of PM2.5 source contribution analysis in a photochemical model

(2013) R.H.F. Kwok et al.   ATMOSPHERIC ENVIRONMENT

Estimating the uncertainty in the atmospheric ammonia concentration in an urban area by Ogawa passive samplers

(2013) Manuel A. Leiva G. et al.   MICROCHEMICAL JOURNAL

Enhanced nitrogen deposition over China

(2013) Xuejun Liu et al.   NATURE

Characterizing the isotopic composition of atmospheric ammonia emission sources using passive samplers and a combined oxidation-bacterial denitrifier approach

(2013) J. David Felix et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Collection efficiency and interstage loss of nanoparticles in micro-orifice-based cascade impactors

(2012) Chun-Nan Liu et al.   ATMOSPHERIC ENVIRONMENT

Nitrogen Isotopic Composition of Coal-Fired Power Plant NOx: Influence of Emission Controls and Implications for Global Emission Inventories

(2012) J. David Felix et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Verification of anthropogenic emissions of China by satellite and ground observations

(2011) Shuxiao Wang et al.   ATMOSPHERIC ENVIRONMENT

Passive ammonia monitoring in the United States: Comparing three different sampling devices

(2011) Melissa A. Puchalski et al.   JOURNAL OF ENVIRONMENTAL MONITORING

TrajStat: GIS-based software that uses various trajectory statistical analysis methods to identify potential sources from long-term air pollution measurement data

(2009) Y.Q. Wang et al.   ENVIRONMENTAL MODELLING & SOFTWARE