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Overview of the Alaskan Layered Pollution and Chemical Analysis (ALPACA) Field Experiment

Athanasios Nenes, Julia Schmale, Andrea Baccarini, Roman Pohorsky, Sukriti Kapur

The Alaskan Layered Pollution And Chemical Analysis (ALPACA) field experiment was a collaborative study designed to improve understanding of pollution sources and chemical processes during winter (cold climate and low-photochemical activity), to investigat ...

2024

Nitrogen oxides in the free troposphere: implications for tropospheric oxidants and the interpretation of satellite NO2 measurements

Ilann Ernest Valentin Bourgeois

Satellite-based retrievals of tropospheric NO(2)columns are widely used to infer NOx (equivalent to NO + NO2) emissions. These retrievals rely on model information for the vertical distribution of NO2. The free tropospheric background above 2 km is particu ...

COPERNICUS GESELLSCHAFT MBH2023

One-pot synthesis of highly dispersed mesoporous Cu/ZrO2 catalysts for NH3-SCR

Davide Ferri, Oliver Kröcher, Rob Jeremiah G. Nuguid

Catalysts consisting of highly dispersed copper on a mesoporous ZrO2 support were synthesised via a one-pot sol-gel synthesis and were tested for the selective catalytic reduction of NOx by NH3. The copper dispersion was investigated by XRD and TEM, which ...

ELSEVIER2022

Nighttime chemistry of biomass burning emissions in urban areas: A dual mobile chamber study

Athanasios Nenes, Spyros Pandis

Residential biomass burning for heating purposes is an important source of air pollutants during winter. Here we test the hypothesis that significant secondary organic aerosol production can take place even during winter nights through oxidation of the emi ...

COPERNICUS GESELLSCHAFT MBH2021

Historical Changes in Seasonal Aerosol Acidity in the Po Valley (Italy) as Inferred from Fog Water and Aerosol Measurements

Athanasios Nenes, Spyros Pandis

Acidity profoundly affects almost every aspect that shapes the composition of ambient particles and their environmental impact. Thermodynamic analysis of gas-particle composition datasets offers robust estimates of acidity, but they are not available for l ...

AMER CHEMICAL SOC2021

Rapid dark aging of biomass burning as an overlooked source of oxidized organic aerosol

Athanasios Nenes, Spyros Pandis

Oxidized organic aerosol (OOA) is a major component of ambient particulate matter, substantially impacting climate, human health, and ecosystems. OOA is readily produced in the presence of sunlight, and requires days of photooxidation to reach the levels o ...

NATL ACAD SCIENCES2020

Exploring chemical space in the search for improved azoheteroarene-based photoswitches

Sergio Vela Llausi

In quest of improved photo switches, azoheteroarenes have emerged as a potential alternative to azobenzenes. However, to date the number and types of these species that have been subjected to study are insufficient to provide an in-depth understanding of t ...

ROYAL SOC CHEMISTRY2019

Instrumentation and measurement strategy for the NOAA SENEX aircraft campaign as part of the Southeast Atmosphere Study 2013

Athanasios Nenes, André Welti

Natural emissions of ozone-and-aerosol-precursor gases such as isoprene and monoterpenes are high in the southeastern US. In addition, anthropogenic emissions are significant in the southeastern US and summertime photochemistry is rapid. The NOAA-led SENEX ...

Copernicus GmbH2016

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Smog

Overview of the Alaskan Layered Pollution and Chemical Analysis (ALPACA) Field Experiment

Nitrogen oxides in the free troposphere: implications for tropospheric oxidants and the interpretation of satellite NO2 measurements

One-pot synthesis of highly dispersed mesoporous Cu/ZrO2 catalysts for NH3-SCR

Year-long variability of polycyclic aromatic hydrocarbons (PAHs) and their contribution on winter intense pollution events in the urban environment of Athens, Greece

Nighttime chemistry of biomass burning emissions in urban areas: A dual mobile chamber study

Historical Changes in Seasonal Aerosol Acidity in the Po Valley (Italy) as Inferred from Fog Water and Aerosol Measurements

Rapid dark aging of biomass burning as an overlooked source of oxidized organic aerosol

Exploring chemical space in the search for improved azoheteroarene-based photoswitches

Validation of LIRIC aerosol concentration retrievals using airborne measurements during a biomass burning episode over Athens

Instrumentation and measurement strategy for the NOAA SENEX aircraft campaign as part of the Southeast Atmosphere Study 2013

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Year-long variability of polycyclic aromatic hydrocarbons (PAHs) and their contribution on winter intense pollution events in the urban environment of Athens, Greece

Nitrogen oxides in the free troposphere: implications for tropospheric oxidants and the interpretation of satellite NO2 measurements

Historical Changes in Seasonal Aerosol Acidity in the Po Valley (Italy) as Inferred from Fog Water and Aerosol Measurements

Rapid dark aging of biomass burning as an overlooked source of oxidized organic aerosol

Exploring chemical space in the search for improved azoheteroarene-based photoswitches

Nighttime chemistry of biomass burning emissions in urban areas: A dual mobile chamber study

Instrumentation and measurement strategy for the NOAA SENEX aircraft campaign as part of the Southeast Atmosphere Study 2013

One-pot synthesis of highly dispersed mesoporous Cu/ZrO2 catalysts for NH3-SCR

Overview of the Alaskan Layered Pollution and Chemical Analysis (ALPACA) Field Experiment

Validation of LIRIC aerosol concentration retrievals using airborne measurements during a biomass burning episode over Athens