Themed collection World Earth Day 2025

Nanotechnology for oil spill response and cleanup in coastal regions
Oil spills frequently cause devastating impacts on coastal ecosystems and communities.
Environ. Sci.: Nano, 2025,12, 41-47
https://doi.org/10.1039/D4EN00954A

Microplastics analysis: from qualitative to quantitative
This review provides a critical overview of the literature on analytical techniques of MPs in environmental and food matrices, emphasizing the latest methods for MP separation, identification, and quantification.
Environ. Sci.: Adv., 2024,3, 1652-1668
https://doi.org/10.1039/D4VA00244J

Innovative approaches to sustainable wastewater treatment: a comprehensive exploration of conventional and emerging technologies
Access to clean water is under threat due to population growth, climate change, and pollution, emphasizing the need for effective wastewater treatment.
Environ. Sci.: Adv., 2025,4, 189-222
https://doi.org/10.1039/D4VA00136B

Assessing the environmental impact of freshwater use in LCA: established practices and current methods
Extensive water use leads to scarcity, adversely affecting human health, ecosystems, and resources. Life cycle assessment (LCA) evaluates these impacts via damage pathways, using characterization models to quantify effects.
Environ. Sci.: Water Res. Technol., 2025,11, 196-221
https://doi.org/10.1039/D4EW00641K

Finding non-fluorinated alternatives to fluorinated gases used as refrigerants
The critical review scrutinizes some of the public statements on fluorinated gases and gives a detailed overview of the available alternatives to fluorinated gases used as refrigerants.
Environ. Sci.: Processes Impacts, 2024,26, 1955-1974
https://doi.org/10.1039/D4EM00444B

Magnetically recyclable nanophotocatalysts in photocatalysis-involving processes for organic pollutant removal from wastewater: current status and perspectives
The critical review covers the applications, associated mechanisms, challenges, and prospects of magnetically recyclable nanophotocatalysts in photocatalysis-related processes.
Environ. Sci.: Nano, 2024,11, 1784-1816
https://doi.org/10.1039/D3EN00906H

Effect of seawater acidification on energy metabolism in the hydrocoral Millepora alcicornis: inhibition of citrate synthase activity indicates disruption in aerobic pathways
Citrate synthase, a key enzyme involved in energy production, was inhibited after the hydrocoral Millepora alcicornis was exposed to seawater acidification for 30 days in a marine mesocosm system.
Environ. Sci.: Adv., 2025,4, 447-455
https://doi.org/10.1039/D4VA00083H

The INGENIOUS project: towards understanding air pollution in homes
This paper provides an overview of the INGENIOUS (UnderstandING the sourcEs, traNsformations and fates of IndOor air pollUtantS) project, aiming to better understand air pollution in homes.
Environ. Sci.: Processes Impacts, 2025,27, 355-372
https://doi.org/10.1039/D4EM00634H

Polymer–iron oxide nanofiber composites for lead removal: performance improvements through organic acid stabilization of nanoparticles to promote surface segregation during electrospinning
Polymer–iron oxide nanofiber composites.
Environ. Sci.: Nano, 2025,12, 1487-1500
https://doi.org/10.1039/D4EN00902A
Unravelling the in vivo biotoxicity of a green-biofabricated graphene oxide–microplastic hybrid mediated by proximal intrinsic atomic interactions
GO@PS exhibit higher biotoxicity than individual graphene oxide and polystyrene primarily through oxidative stress in zebrafish embryos emphasizing the environmental and health risks.
Environ. Sci.: Nano, 2025,12, 1592-1608
https://doi.org/10.1039/D4EN00558A

Impact of different soil solutions on the stability and photocatalytic activity of commercial zinc oxide nanoparticles
Regardless of changes of ZnO NPs after interaction with the soil solutions, it remains active!
Environ. Sci.: Nano, 2025,12, 1328-1339
https://doi.org/10.1039/D4EN00354C

Emerging investigator series: open dumping and burning: an overlooked source of terrestrial microplastics in underserved communities
Open dumping and burning of solid waste are widely practiced in underserved communities lacking access to solid waste management facilities. The generation of microplastics from these sites has been overlooked.
Environ. Sci.: Processes Impacts, 2025,27, 52-62
https://doi.org/10.1039/D4EM00439F

Estimating emissions of biogenic volatile organic compounds from urban green spaces and their contributions to secondary pollution
A 1 km spatial resolution of vegetation emission inventory.
Environ. Sci.: Atmos., 2025,5, 129-141
https://doi.org/10.1039/D4EA00099D

Assessing the impact of forest fires on air quality in Northeast India
This study investigates the impact of forest fires on air quality in India's northeastern (NE) region, focusing on Guwahati, Tezpur, and Aizawl.
Environ. Sci.: Atmos., 2025,5, 82-93
https://doi.org/10.1039/D4EA00107A

Metal speciation of volcanic aerosols from Mt. Etna at varying aerosol water content and pH obtained by different thermodynamic models
Metal speciation of volcanic aerosol from Mt Etna, an open vent, persistently degassing volcano in Europe.
Environ. Sci.: Atmos., 2025,5, 8-24
https://doi.org/10.1039/D4EA00108G

Atmospheric mercury concentration variations at Syowa Station, Lützow-Holm Bay, East Antarctica and contributing factors
In January 2022, gaseous elemental Hg (GEM) concentrations were continuously monitored at Syowa Station on East Ongul Island, located ∼4 km from the continent on the eastern coast of Lützow-Holm Bay in the Antarctic region.
Environ. Sci.: Adv., 2025,4, 172-179
https://doi.org/10.1039/D4VA00166D

Air pollution (PM2.5) and its meteorology predictors in Kampala and Jinja cities, in Uganda
This study contributes insights into the air quality challenges faced by two rapidly urbanising cities in Uganda and lays the groundwork for informed decision-making to protect public health and promote a sustainable environment.
Environ. Sci.: Atmos., 2024,4, 1145-1156
https://doi.org/10.1039/D4EA00074A

Characteristics and adsorption behavior of typical microplastics in long-term accelerated weathering simulation
Adsorption of different organic pollutants by three microplastics before and after weathering.
Environ. Sci.: Processes Impacts, 2024,26, 882-890
https://doi.org/10.1039/D4EM00062E

Upcycling of plastic membrane industrial scraps and reuse as sorbent for emerging contaminants in water
We describe a process for recycling scraps of graphene hollow fiber membranes into sorbent granules suitable for drinking water treatment.
Environ. Sci.: Water Res. Technol., 2024,10, 1097-1107
https://doi.org/10.1039/D3EW00900A

Controlling saturation to improve per- and polyfluoroalkyl substance (PFAS) removal in biochar-amended stormwater bioretention systems
When stormwater biofilters are not saturated, per- and polyfluoroalkyl substances (PFASs) sorb to the air–water interface. The design of black carbon-amended stormwater biofilters for PFAS removal can be improved by preventing saturation.
Environ. Sci.: Water Res. Technol., 2024,10, 1233-1244
https://doi.org/10.1039/D3EW00767G
About this collection
The 22nd of April 2025 marks the 55th anniversary of Earth Day. This annual event celebrates planet earth and raises public awareness of environmental issues.
This collection of articles from the Royal Society of Chemistry’s Environmental Science journals showcases the latest research on multiple environmental issues highlighted by Earth Day including plastic pollution, wastewater contamination, air quality and greenhouse gas emissions.
Find out more about the Environmental Science journals here: https://rsc.li/envsci.