Themed collection International Day for the Preservation of the Ozone Layer

Heterogeneous catalytic ozonation (HCO) is a promising advanced oxidation process (AOP) that can effectively degrade recalcitrant organic pollutants; but formation of harmful byproducts should be carefully evaluated.

Much of the ozone that enters buildings reacts with human skin oils, both on occupants and on other surfaces. Products of these reactions influence human chemical exposures.

The Chemical Assessment of Surfaces and Air (CASA) study investigated how chemicals transform in the indoor environment using perturbations (e.g., cooking, cleaning) and additions of indoor and outdoor pollutants in a test house.

Devices using 222 nm germicidal ultraviolet light (GUV222) have been marketed to reduce virus transmission indoors. However, GUV222 generates ozone which can react with gases and surfaces to create undesirable air byproducts.

This study shows that volatile and semi-volatile organic gases are emitted during light and heavy braking. These emissions will remain as we transition to zero exhaust emission vehicles and must be included in air pollution and climate assessments.

Climate change and drought can lead to unprecedented changes in surface water temperature requiring utilities to examine their ozone system's disinfection capability while minimizing bromate production.

The role of liver enzymes in the association between ozone exposure and diabetes risk.

We combine machine learning (ML) and geospatial interpolations to create two-dimensional high-resolution ozone concentration fields over the South Coast Air Basin for the entire year of 2020.

Ozone deposition velocity with a daily mean of 0.49 cm s⁻¹ was observed in the Tibetan Plateau and rationalized by local meteorological and soil conditions. Our research suggested widespread ozone deposition velocity over soil of 0.1–0.7 cm s⁻¹.

The PM_2.5 suppression effect on tropospheric ozone production increased following the shift of the O₃-sentivity towards more NO_x-limited regimes, highlighting the potential utility of this effect for informing air pollution controls.

This dispersion of infectious aerosols is moderated largely by air pollution. The possible role of O₃ on the dispersion of SARS-CoV-2 aerosols is emphasized.

Volatile organic compounds (VOCs) emitted during cooking affect indoor air quality. Here, experiments and simulations were carried out to determine VOC emission rates and the factors driving the formation of harmful products via secondary chemistry.

Proposed mechanism of catalytic ozonation in different surface acid sites of oxide aqueous suspensions.

Reduced-form modeling approaches are an increasingly popular way to rapidly estimate air quality and human health impacts related to changes in air pollutant emissions.

The role of meteorology in facilitating the formation and accumulation of ground-level ozone is of great theoretical and practical interest, especially due to emissions shifts and changing global climate.

The exposed facets and surface defects of ZnO significantly influenced the production of reactive oxidation species in the photocatalytic ozonation process.

Comparison of nitrate formation mechanisms from free amino acids and amines during ozonation was made using quantum chemical calculations.

Understanding the role of lake breeze in vertical ozone profiles using unmanned aerial systems at a shoreline location. Vertical profiles show gradients in ozone with higher ozone in areas of steep temperature inversion.

The objective of this study was to apply targeted and untargeted screening analyses to perform a deep assessment of micropollutant removal during wastewater disinfection by ozonation.

The strongest formation of oxygenated organic molecules occurs when PM_2.5 and O₃ are co-enhanced.