Short-term exposure to ammonium sulfate modifies ice nucleation by alpha-alumina but not organic monolayers or microplastics [0.03%]
短期暴露于硫酸铵会改变α-氧化铝的冰核化作用，但不会改变单层有机物或微塑料的冰核化作用
Lian Pharoah,Teresa M Seifried,Gren N Patey et al.
Lian Pharoah et al.
Accurate predictions of ice cloud formation require understanding how ammonium sulfate affects the freezing behavior of ice-nucleating substances (INSs). This knowledge is also essential for evaluating the reliability of a freezing assay us...
NO and NO2 reactions with oxygenated peroxy radicals lead to indistinguishable product compositions: computational insights from cyclohexene oxidation in presence of NO x [0.03%]
NO和NO2与含氧过氧自由基的反应具有不可区分的产物组成：环己烯氧化过程中NOx存在时的计算洞察
Sakshi Jha,Avinash Kumar,Prasenjit Seal et al.
Sakshi Jha et al.
This study presents a computational investigation into the role of nitrogen oxides (NO x ) in modulating gas-phase cyclohexene oxidation by ozone (O3) and hydroxyl radical (OH) through their reactions with peroxy radicals (RO2) formed durin...
Wenjuan Yu,Rima Baalbaki,Jiali Shen et al.
Wenjuan Yu et al.
Methanesulfonic acid (MSA; CH3SO3H), produced by oxidation of dimethylsulfide (DMS; CH3SCH3), is a key precursor for aerosols in the marine boundary layer and free troposphere. Laboratory experiments show that MSA contributes to both partic...
Hannah Klebach,Lucía Caudillo-Plath,Martin Heinritzi et al.
Hannah Klebach et al.
The formation and radiative properties of clouds in the marine boundary layer are highly sensitive to the number of cloud condensation nuclei (CCN), which largely originate from new particle formation. At present, most climate models only c...
Eva Sommer,João Almeida,Wenjuan Yu et al.
Eva Sommer et al.
Particle nucleation from trace atmospheric vapours is important for climate since it gives rise to more than half of global cloud condensation nuclei. Sulfuric acid (H2SO4) has long been recognised to drive particle nucleation in the atmosp...
Pre-existing particle composition controls the initial viscosity and aging of α-pinene-derived secondary organic aerosol [0.03%]
初始存在的颗粒物组成决定了由α-蒎烯衍生的二次有机气溶胶的初始粘度及其老化过程
Katherine R A Kolozsvari,Natasha M Garner,David M Bell et al.
Katherine R A Kolozsvari et al.
Secondary organic aerosol (SOA) is a significant contributor to the global burden of fine particulate matter, which impacts both climate and health. α-Pinene is a widely-studied volatile organic compound (VOC) with high global emissions an...
Convective storms alter bioaerosol populations through cold pools and precipitation [0.03%]
对流风暴通过冷池和降水改变生物气溶胶群落结构
Teresa K Feldman,Chamari B A Mampage,Nicholas M Falk et al.
Teresa K Feldman et al.
Meteorology can alter bioaerosol properties, potentially enhancing their impact on public health and cloud microphysics. The BioAerosols and Convective Storms (BACS) study was conducted over May-June 2022 and 2023 in Northern Colorado and e...
Acetyl peroxy radical-initiated oxidation of oxygenated monoterpenes: functional group effects on reaction pathways [0.03%]
乙酰过氧基自由基引发的单萜类氧化物的氧化作用：官能团对反应路径的影响
Ida Karppinen,Dominika Pasik,Nanna Myllys
Ida Karppinen
Biogenic volatile organic compounds are emitted into the atmosphere where they can oxidize forming compounds with lower volatilities. These low-volatility compounds can participate in the formation of secondary organic aerosols (SOAs) that ...
Hot and dry conditions elevate grass pollen and sub-pollen particle concentrations in Melbourne, Australia [0.03%]
在澳大利亚墨尔本，热干条件下草花粉和次级气传颗粒浓度升高
C B A Mampage,K M Emmerson,E R Lampugnani et al.
C B A Mampage et al.
A Wideband Integrated Bioaerosol Sensor (WIBS) was used in conjunction with chemical tracer analysis for the first time during the 2022-2023 grass pollen season in Melbourne, Australia. WIBS detected continuous levels of bioaerosol througho...
Utility of low-cost sensor measurement for predicting ambient PM2.5 concentrations: evidence from a monitoring network in Accra, Ghana [0.03%]
低成本传感器测量预测环境PM2.5浓度的效用：来自加纳首都阿克拉监测网络的证据
Patrick Attey-Yeboah,Christian Afful,Kelvin Yeboah et al.
Patrick Attey-Yeboah et al.
Ambient air pollution has been linked to several health endpoints. The WHO attributes 7 million deaths annually to air pollution with particulate matter (PM2.5) being the pollutant of critical importance due to its devastating health effect...