Is this you? As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.
Claim your profile
Articles by Yele Sun
Artificial intelligence for atmospheric chemistry: from observation to process understanding
Abstract Understanding the sources and evolution of air pollutants is difficult because emissions, meteorology, transport, and atmospheric chemistry interact across different spatial and temporal scales. Chemical transport models provide process-based descriptions but are computationally demanding, while receptor models infer source contributions from observations and depend on simplifying assumptions.
Molecular-level insights into organic aerosol evolution and gas-particle partitioning in Beijing using a vaporization inlet coupled with Vocus PTR-MS
Abstract Elucidating the molecular-level evolution of organic aerosols (OA) is fundamental to understanding atmospheric chemistry and its climatic impacts, yet current analytical techniques are often constrained by thermal decomposition and fragmentation artifacts. In this study, we deployed a novel Vaporization Inlet for Aerosols coupled with a Vocus Proton Transfer Reaction Time-of-Flight Mass Spectrometer (VIA-PTR) during a wintertime field campaign in urban Beijing.
Evaluation of real-time source apportionment approaches in six Chinese cities using the AXA (ACSM, Xact, Aethalometer) instrumental set-up - Scientific Reports
Abstract This study evaluates an innovative system that can be used for Near Real-Time Source Apportionment (NRT model) providing results within minutes after the measurements across six Chinese cities: Beijing, Langfang, Shijiazhuang, Xi’an, Wuhan, and Chongqing during 2020–22. The system leverages the AXA instrumental setup (ACSM, Xact, Aethalometer) to integrate high–time-resolution data and provide detailed insights into major particulate matter (PM) sources and their contributions.
Rapid hydrolysis of NO2 at High Ionic Strengths of Deliquesced Aerosol Particles
RETURN TO ARTICLES ASAPOccurrence, Fate, an...Occurrence, Fate, and Transport of Contaminants in Indoor Air and AtmosphereNEXT * , Haotian Zheng School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China CMA-NKU Cooperative Laboratory for Atmospheric Environment Health Research, Tianjin 300350,...
Increasing contribution of nighttime nitrogen chemistry to wintertime haze formation in Beijing observed during COVID-19 lockdowns - Nature Geoscience
Abstract Nitrate comprises the largest fraction of fine particulate matter in China during severe haze. Consequently, strict control of nitrogen oxides (NOx) emissions has been regarded as an effective measure to combat air pollution. However, this notion is challenged by the persistent severe haze pollution observed during the COVID-19 lockdown when NOx levels substantially declined.
Vertical Distributions of Primary and Secondary Aerosols in Urban Boundary Layer: Insights into Sources, Chemistry, and Interaction with Meteorology
Vertical measurements are essential for the characterization of aerosol and boundary layer interactions; yet, our knowledge of vertical profiles of primary and secondary aerosol species in megacities is limited. Here, we conducted comprehensive vertical measurements of aerosol particle composition on a 325 m meteorological tower with two aerosol chemical speciation monitors in winter in urban Beijing.
Detailed Measurements of Submicron Particles from an Independence Day Fireworks Event in Albany, New York Using HR-ToF-AMS
SPECIAL ISSUE This article is part of the New Advances in Organic Aerosol Chemistry special issue. 1.
Persistent Nonagricultural and Periodic Agricultural Emissions Dominate Sources of Ammonia in Urban Beijing: Evidence from 15N Stable Isotope in Vertical Profiles
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. On the basis of the one-year measurements of weekly vertical profiles of δ15N–NH3 at 5 heights (2, 15, 102, 180, and 320 m) on a 325-m meteorological tower in urban Beijing, we found that vertical profiles of NH3 concentrations generally remained stable with height.
Springtime precipitation effects on the abundance of fluorescent biological aerosol particles and HULIS in Beijing
The temporal variations of organic and nitrogen components (Table 1) revealed an increase during the precipitation followed by a decrease after the rainfall for both WSOC, WIOC and WSTN. Such a pattern was consistent with the variations of number concentrations of fluorescent biological particles and non-fluorescent biological aerosols (Fig. 1).
Show More
loading
Actions
Is this you?
As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.Get in touch with Yele
Contact Yele, search articles and posts on X, monitor coverage, and track replies from one place.
Learn more about Muck Rack