Secondary Organic Aerosol from OH Oxidation of Acyclic Terpenes Is More Viscous and Less Volatile than That of Their Cyclic Analogs [0.03%]
线性单萜的羟基氧化二次有机气溶胶比其环状类似物更粘且不易挥发
Sijia Liu,Claire E Moffett,Gregory Vandergrift et al.
Sijia Liu et al.
Biogenic volatile organic compounds (BVOCs), a dominant source of secondary organic aerosol (SOA) globally, exhibit emission rates and compositions that are plant species-specific and vary with environmental stressors. A common outcome of p...
Assessing Attenuation Effects in X‑ray Fluorescence Analysis of Light Elements in Mineral Dust [0.03%]
矿物尘埃中轻元素X射线荧光分析的衰减效应评估
Xuan Liu,Jay R Turner,Dhruv Mitroo et al.
Xuan Liu et al.
Reliable elemental analysis is important for understanding mineral dust mass concentrations, composition, sources, and atmospheric processing. X-ray attenuation of light elements in widely used X-ray fluorescence (XRF) measurements can lead...
Changes in Secondary Organic Aerosol Composition and Volatility Going from a Low to a High HO2/RO2 Regime in α‑Pinene Photooxidation [0.03%]
α-蒎烯光氧化从HO2/RO2低值到高值体系中二次有机气溶胶的组分和挥发性的变化规律研究
Veronica Geretti,Yarê Baker,Thomas Bannan et al.
Veronica Geretti et al.
The mechanisms of secondary organic aerosol (SOA) formation are not yet fully understood. The relative abundance of hydroperoxyl radicals (HO2) and peroxy radicals (RO2) affects SOA properties, but chamber experiments often underemphasize t...
Time Scales of Gaseous Smoke Contamination Indoors from Real and Simulated Wildland-Urban Interface Fires [0.03%]
真实和模拟城乡结合部火灾中室内气体烟雾污染的时间尺度
Michael F Link,Aika Y Davis,Nathan M Lima et al.
Michael F Link et al.
Fires occurring at the wildland-urban interface (WUI) can produce smoke, that contains unique chemicals from the combustion of urban structures, which can then contaminate nearby buildings and affect indoor air quality. Assessing property l...
Uma Shankar,Benjamin N Murphy,Maridee A Weber et al.
Uma Shankar et al.
Many greenhouse gas (GHG) emission reduction measures achieve simultaneous reductions in air pollutants. Human-Earth system models can estimate such emission changes in the energy system but using them in chemistry-transport models (CTMs) t...
Joseph M Martin,Xiaoyu Liu,Ingrid J George et al.
Joseph M Martin et al.
Emissions from volatile chemical products (VCPs) have become increasingly important to anthropogenic organic carbon emissions, and consequently to anthropogenic ozone and secondary organic aerosol (SOA), as emission control strategies have ...
Audrey E Lyp,Rebecca Z Fenselau,Delaney B Kilgour et al.
Audrey E Lyp et al.
The reaction of ozone (O3) with iodide and dissolved organic carbon (DOC) in the sea surface microlayer is a major pathway for O3 loss from the troposphere. The impact of O3 dry deposition to freshwater surfaces (e.g., inland lakes) is unde...
Nearby Sites Show Similar Upwind Sources and Differing Semivolatile Concentrations in Coastal Aerosol Particles [0.03%]
近处站点显示沿海气溶胶颗粒中的上风向源相似而半挥发性化合物浓度不同
Sanghee Han,Abigail S Williams,Lynn M Russell et al.
Sanghee Han et al.
The Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) characterized aerosol composition using measurements at two sites within 3 km (Scripps Pier and Mt. Soledad) from 15 February 2023 to 14 February 2024. Comparing the two si...
Desert Sand and Dust Storms and Desert Dust Episodes: Major Patterns to be Accounted for to Protect the Health of Exposed Population: A Review [0.03%]
沙漠沙尘和尘暴及沙漠尘埃事件：保护暴露人群健康须考虑的主要模式：综述研究
Xavier Querol,Julia C Fussell,Najat A Saliba et al.
Xavier Querol et al.
Sources of desert dust, atmospheric transport, recorded concentrations of atmospheric particulate matter (PM), physical, compositional, and biological characteristics, and likely direct and indirect impacts on air quality impairment are rev...
Decoupling the Evolution of the Light-Absorption Properties of Primary and Secondary Organic Aerosol Produced from Duff Burning [0.03%]
脱耦出腐植燃料燃烧产生一次和二次有机气溶胶的光吸收性质的演化过程研究
Muhammad I Abdurrahman,Chase K Glenn,Robert Penland et al.
Muhammad I Abdurrahman et al.
This study investigated the coevolution of the light-absorption properties of biomass-burning primary and secondary organic aerosol (POA and SOA) during photochemical aging. We performed smoldering combustion of duff and photochemically age...