Themed collection The role of tropospheric ozone in atmospheric processes, health and climate - Topic Highlight

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.

Cleaning detergents are a source of numerous volatile organic compounds (VOCs) which are highly reactive towards ozone leading to the formation of secondary organic aerosols (SOA) in indoor environments.

Ozone (O₃) pollution has been recognized as the major air pollution in the Pearl River Delta (PRD) region, South China.

The present long-term study has been conducted with dual objectives: firstly, to monitor the spatio-temporal variation of ambient air quality parameters and secondly, to evaluate the impact of air pollutants on the Delhi population.

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.

Asphalt paving contributes to nationwide reactive organic compound emissions and these emissions can enhance local, predominantly urban, fine particulate matter concentrations.

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.

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 different mechanisms for high ozone cases at the north shore vs. the south shore of Long Island, New York are influenced by the interplay of urban plumes with different coastal meteorological flow patterns.

The average (climatic) seasonal pattern of ozone in the northern mid-latitude troposphere is explained by a very simple model. Reference to such basic models is a valuable tool for the interpretation of complex simulations and measurements.

We highlight the contribution of inter-annual meteorology and emissions (dust, biogenic, and biomass burning) and COVID-19 lockdown emissions to the changes in aerosols and ozone, and provide a detailed ozone chemistry analysis in northern India.

Lung surfactant at the air water interface reacts with ozone leading to changes in surface tension, film thickness, structure.

We analyse the evolution of surface ozone in Austria for 1990–2019 and investigate effects of changes in precursor emissions and climate warming. Our results show that ozone burdens remain a health problem despite reductions in precursor emissions.

We determine, for the first time, the reactivity of ground brake pads with ozone and discuss the potential impact of this interaction on urban air quality.

Tropospheric ozone (O₃) negatively impacts human health and is also a greenhouse gas.