A5014806050- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Geophysics and Gravity Measurements
- Air Quality and Health Impacts
- Air Quality Monitoring and Forecasting
- Analytical Chemistry and Chromatography
- Spectroscopy and Laser Applications
- Chemical Thermodynamics and Molecular Structure
- Atmospheric and Environmental Gas Dynamics
- Advanced Chemical Physics Studies
- Neuropeptides and Animal Physiology
- Neurotransmitter Receptor Influence on Behavior
- Atmospheric aerosols and clouds
- Indoor Air Quality and Microbial Exposure
- Catalytic Processes in Materials Science
- Pain Mechanisms and Treatments
- Analytical Methods in Pharmaceuticals
- Free Radicals and Antioxidants
- Analytical Chemistry and Sensors
- Chemical Reaction Mechanisms
- Toxic Organic Pollutants Impact
Polish Academy of Sciences
2023-2024
Institute of Physical Chemistry
2023-2024
University of Warsaw
2020-2024
Abstract Wildfires are a significant source of organic aerosol during summer, with major impacts on air quality and climate. However, studies in Europe suggest surprisingly low (less than 10%) contribution biomass burning to average summertime fine particulate matter levels. In this study we combine field measurements atmospheric chemical transport modeling, demonstrate that the wildfires particle levels summer is seriously underestimated. Our work suggests corresponding has been...
The atmospheric α-pinene oxidation leads to three carboxylic acids: norpinonic acid (NPA), pinic (PA), and 3-methyl-1,2,3-butanetricarboxylic (MBTCA). In this study, the OH radical kinetics in aqueous phase of these acids were investigated at different temperatures pH values solutions. Activation parameters corresponding lifetimes troposphere derived. overall second-order rate constants for individual speciation forms (AH A
The physicochemical properties and the synthesis of four α-pinene oxidation products, terebic acid, 3-methyl-1,2,3-butanetricarboxylic acid (MBTCA), diaterpenylic acetate (DTAA), pinanediol, are presented in this study. encompass thermal properties, solubility water, dissociation constant (pKa) for investigated compounds. It was found that exhibits a relatively high melting temperature 449.29 K, whereas pinanediol revealed low 329.26 K. water determined with dynamic method experimental...
The presented studies focus on measuring the determination of acidity constant (pKa) relevant secondary organic aerosol components. For our research, we selected important oxidation products (mainly carboxylic acids) most abundant terpene compounds, such as α-pinene, β-pinene, β-caryophyllene, and δ-3-carene. research covered synthesis compounds. We used three methods to measure constant, i.e., 1H NMR titration, pH-metric Bates-Schwarzenbach spectrophotometric method. Moreover, pKa values...
Synthesis of investigated compound protocolThe commercially available (1S)-(-)-verbenone (CAS Registry No. 1196-01-6, ≥ 94%, Sigma-Aldrich) was used as starting material.The protocol for the synthesis norpinonic acid covered one step -the oxidative cleavage double C=C bond using RuCl3×H2O 14898-67-0, Sigma-Aldrich, ≥99.98%).Other chemicals in cis-norpinonic were follows: sodium periodate 7790-28-5, 99.8%), carbon tetrachloride 56-23-5, 99.5%), acetonitrile 75-05-8, POCH, 99.9%), hexane...
Abstract. Norpinonic acid has been known as an important α-pinene athmospheric SOA (Secondary Organic Aerosol) component. It is formed in the reaction of α-pinene, β-pinene or verbenone with atmospheric oxidizing reagents, such ozone (O3) and hydroxy radicals. In presented studies, tandem mass spectrometry techniques were used to determine exact norpinonic fragmentation pathway gas phase. The precursor anion – deprotonated (m/z 169) generated electrospray (ESI) source subjected into...
Abstract. Norpinonic acid has been known as an important α-pinene atmospheric secondary organic aerosol (SOA) component. It is formed in the reaction of α-pinene, β-pinene or verbenone with oxidizing reagents. In presented study, tandem mass spectrometry techniques were used to determine exact norpinonic fragmentation pathway gas phase. The precursor anion – deprotonated (m/z 169), generated electrospray (ESI) source was introduced into collision cell spectrometer and fragmented using...
Aqueous oxidation of pinanediol (PND) and camphanediol (CND) by hydroxyl radical (OH) was investigated using gas liquid chromatography coupled with mass spectrometry. The yields the products formed were measured authentic surrogate standards. This approach quantified >97% for both reactions under investigation. For first time, formation 3-methyl-1,2,3-butanetricarboxylic acid (MBTCA) other terpenoic acids (TAs) from aqueous OH reaction PND confirmed Based on data acquired, mechanisms CND...