Tiffany L B Yelverton,Michael D Hays,Joann Rice
Tiffany L B Yelverton
Ethylene oxide (EtO) is a colorless, flammable, reactive gas commonly used for sterilization and chemical manufacturing. It has become a contaminant of concern for the United States Environmental Protection Agency (USEPA) due to an assessme...
Primary Radical Effectiveness: Do the Different Chemical Reactivities of Hydroxyl and Chlorine Radicals Matter for Tropospheric Oxidation? [0.03%]
初级活性效应：羟基自由基和氯自由基不同的化学活性对对流层氧化作用有影响吗？
Peter M Edwards,Cora J Young
Peter M Edwards
The atmospheric oxidation of organics occurs primarily via reaction cycles involving gas phase radical species, catalysed by nitric oxide (NO), which result in the production of secondary pollutants such as ozone. For these oxidation cycles...
Effects of 222 nm Germicidal Ultraviolet Light on Aerosol and VOC Formation from Limonene [0.03%]
222nm杀菌紫外线对柠檬烯气溶胶和VOCs生成的影响
Olivia J Jenks,Zhe Peng,Melinda K Schueneman et al.
Olivia J Jenks et al.
Since the 1930s, germicidal ultraviolet (GUV) irradiation has been used indoors to prevent the transmission of airborne diseases, such as tuberculosis and measles. Recently, it has received renewed attention due to the COVID-19 pandemic. Wh...
Hydroxymethanesulfonate and Sulfur(IV) in Fairbanks Winter During the ALPACA Study [0.03%]
阿拉帕卡研究期间费尔班克斯冬季的羟基甲烷磺酸盐和(Ⅳ)硫
Kayane Dingilian,Elliana Hebert,Michael Battaglia Jr et al.
Kayane Dingilian et al.
Hydroxymethanesulfonate (HMS) in fine aerosol particles has been reported at significant concentrations along with sulfate under extreme cold conditions (-35 °C) in Fairbanks, Alaska, a high latitude city. HMS, a component of S(IV) and an ...
Understanding Reductions of PM2.5 Concentration and Its Chemical Composition in the United States: Implications for Mitigation Strategies [0.03%]
美国PM2.5浓度及其化学组分降低的原因分析及其对缓解战略的启示
Chi Li,Randall V Martin,Aaron van Donkelaar
Chi Li
Motivated by the recent tightening of the US annual standard of fine particulate matter (PM2.5) concentrations from 12 to 9 μg/m3, there is a need to understand the spatial variation and drivers of historical PM2.5 reductions. We evaluate ...
Development, Demonstration, and Evaluation of Routine Monitoring of Aerosol Carbon, Oxygen, and Sulfur Content [0.03%]
气溶胶碳、氧和硫含量常规监测方法的研制、演示与评估研究
Purushottam Kumar,James F Hurley,Nathan M Kreisberg et al.
Purushottam Kumar et al.
Traditional online measurements of the chemical composition of particulate matter have relied on expensive and complex research-grade instrumentation based on mass spectrometry and/or chromatography. However, routine monitoring requires low...
Enhanced HONO Formation from Aqueous Nitrate Photochemistry in the Presence of Marine Relevant Organics: Impact of Marine-Dissolved Organic Matter (m-DOM) Concentration on HONO Yields and Potential Synergistic Effects of Compounds within m-DOM [0.03%]
含海溶解有机物（m-DOM）硝酸盐溶液光解生成HONO的增强：m-DOM浓度对HONO产率的影响以及m-DOM内组分间的协同效应研究
Stephanie L Mora García,Israel Gutierrez,Jillian V Nguyen et al.
Stephanie L Mora García et al.
Nitrous acid (HONO) is a key molecule in the reactive nitrogen cycle. However, sources and sinks for HONO are not fully understood. Particulate nitrate photochemistry has been suggested to play a role in the formation of HONO in the marine ...
Modeling the Oxygen Isotope Anomaly (Δ17O) of Reactive Nitrogen in the Community Multiscale Air Quality Model: Insights into Nitrogen Oxide Chemistry in the Northeastern United States [0.03%]
基于社区多尺度空气质量模型的反应性氮的氧同位素异常（Δ17O）模式：美国东北部二氧化氮化学研究的新视角
Wendell W Walters,Havala O T Pye,Heejeong Kim et al.
Wendell W Walters et al.
Atmospheric nitrate, including nitric acid (HNO3), particulate nitrate (pNO3), and organic nitrate (RONO2), is a key atmosphere component with implications for air quality, nutrient deposition, and climate. However, accurately representing ...
Applying a Phase-Separation Parameterization in Modeling Secondary Organic Aerosol Formation from Acid-Driven Reactive Uptake of Isoprene Epoxydiols under Humid Conditions [0.03%]
在高湿度条件下对异戊二烯环氧二醇酸驱动反应吸附生成二次有机气溶胶进行分相参数化模型构建及验证
Yuzhi Chen,Alexandra E Ng,Jaime Green et al.
Yuzhi Chen et al.
Secondary organic aerosol (SOA) from acid-driven reactive uptake of isoprene epoxydiols (IEPOX) contributes up to 40% of organic aerosol (OA) mass in fine particulate matter. Previous work showed that IEPOX substantially converts particulat...
Advances in the Separation and Detection of Secondary Organic Aerosol Produced by Decamethylcyclopentasiloxane (D5) in Laboratory-Generated and Ambient Aerosol [0.03%]
用于实验室生成和环境颗粒中五甲基环戊硅氧烷（D5）二次有机气溶胶的分离与检测的新进展
Jeewani N Meepage,Josie K Welker,Claire M Meyer et al.
Jeewani N Meepage et al.
Decamethylcyclopentasiloxane (D5), a common ingredient in many personal care products (PCPs), undergoes oxidation in the atmosphere, leading to the formation of secondary organic aerosol (SOA). Yet, the specific contributions of D5-derived ...