Author Archive

Transformation products, mixtures, and vectors themed collection

Guest edited by Professor Hans Peter Arp (Norwegian Geotechnical Institute) and Associate Professor Gabriel Sigmund (Wageningen University & Research), this themed collection includes insights into the transformation of several important pollutants, innovative methods to detect and identify transformation products, and their biological and environmental impacts.

The identity and effects of many substances on the global market remain insufficiently understood, as they often exist as complex mixtures or can generate potentially harmful transformation products. Addressing these mixtures and their transformation products therefore represents a critical frontier in environmental chemistry, as well as in chemical regulation and innovation.

Please enjoy the articles in the collection below.

Introduction to transformation products, mixtures, and vectors

Hans Peter H. Arp*, Gabriel Sigmund*

Environ. Sci.: Processes Impacts 2026, DOI: https://doi.org/10.1039/d6em90018f

 
  Heterogeneous reactions control Cr(VI) release and sequestration in complex chemical mixtures of Cr, Fe, Cu, and organics

Noah Jemison*, Angelica Benavidez, Michael Spilde, Angelica Saenz Trevizo, Adrian Brearley, Juan Lezama Pacheco, Drew Latta, Kaelin Gagnon, Stephen Emeanuwa, Fernando Garzon, Stephen Cabaniss, Peter Lichtner, Abdul-Mehdi Ali, José M. Cerrato*

Environ. Sci.: Processes Impacts 2026; 28 (1): 98–111. https://doi.org/10.1039/d5em00786k

Evolution of the photosensitized production of singlet oxygen by aqueous extracts of biomass-burning aerosol

Daniel Bonomo, Ryan C. Sullivan*

Environ. Sci.: Processes Impacts 2026; 28 (8): 2288–2306. https://doi.org/10.1039/d6em00131a

 
  Introducing BPA-equivalents: assessing mixture toxicity and substitution of BPA in environmental exposure scenarios

Vanessa Srebny, Georg Braun, Niklas Wojtysiak, Beate I. Escher*

Environ. Sci.: Processes Impacts 2026; 28 (3): 779–792. https://doi.org/10.1039/d5em00802f

Hydrophobic model systems for oil film photooxidation: part I: sensitizer effects on hydrocarbon photodegradation

Manoj P. Rayaroth*, Bin Wu, Christoph Aeppli.

Environ. Sci.: Processes Impacts 2026; 28 (7): 2009–2020. https://doi.org/10.1039/d5em00809c

 
     
  Identification of persistent substructures in transformation products with zebrafish embryos using cheminformatics and a suspect screening approach

Parviel Chirsir*, Maria Lorena Cordero-Maldonado, Maxim P. Carlier, Timo Hamers, Emma L. Schymanski*

Environ. Sci.: Processes Impacts 2026; 28 (5): 1584–1602. https://doi.org/10.1039/d5em00825e

     
     
     
Microplastics and PMT plastic-associated chemicals as co-contaminants in ice shaving waste from an urban ice rink

Yanan Li*, Ryan H. S. Hutchins, Claire Oswald, Stefania Impellizzeri*, Roxana Sühring*

Environ. Sci.: Processes Impacts 2026; 28 (6): 1854–1865. https://doi.org/10.1039/d5em01017a

 
     
     
     
  Stability and transformation products of rubber derived compounds under various storage conditions

Phillip Berger, Katherine Poisson, Jaime Adams, Zhenyu Tian*

Environ. Sci.: Processes Impacts 2026; 28 (4): 961–973. https://doi.org/10.1039/d5em01025j

     
     
     
Spatial and temporal variation of suspect screening derived cyanobacterial secondary metabolite mixtures during harmful algal bloom events in shallow agroecosystem lakes

Stanley W. Kohls, Lyndy Holdt, Nervana Metwali, Corey D. Markfort, Peter S. Thorne, Gregory H. LeFevre*

Environ. Sci.: Processes Impacts 2026; 28 (7): 1998–2008. https://doi.org/10.1039/d5em01071c

 
     
     
     
  Comparative toxicity and molecular recognition of galaxolide and its phototransformation product galaxolide lactone in Daphnia magna

Kunting Li, Chuanyang Chen, Dali Wang*, Hongjie Huang, Zixuan Yuan, Jing You

Environ. Sci.: Processes Impacts 2026; 28 (5): 1534–1543. https://doi.org/10.1039/d6em00059b

     
     
     
Release of microplastics and metals from antifouling paint during weathering in simulated cold climates

Guadalupe Santos, Georgina C. Kalogerakis, Jun-Ray Macairan, Laura M. Hernandez, Houssame-Eddine Ahabchane, Jennifer F. Provencher, Kevin J. Wilkinson*, Nathalie Tufenkji*

Environ. Sci.: Processes Impacts 2026; 28 (5): 1448–1462. https://doi.org/10.1039/d6em00126b

 
     
     
     
  Hydroxide-promoted transformation of fluorotelomer carboxylic acids at ambient temperature

Liliya Chernysheva, Elizabeth G. Curtis, Kyle Doudrick*

Environ. Sci.: Processes Impacts 2026; 28 (5): 1511–1520. https://doi.org/10.1039/d5em00821b

     
     
     
Perfluoroalkyl acid precursor discharge from engineered water systems: composition and treatment impacts

Lois D. Arku, Juhe Liu, Joseph A. Charbonnet*

Environ. Sci.: Processes Impacts 2026; 28 (5): 1521–1533. https://doi.org/10.1039/d6em00042h

 
     
     
     
  Accelerated indirect photolysis of UV-328 within the hydrophobic microdomains of dissolved organic matter: the role of sorption and localized reactive intermediates

Mingzhu He, Zhansheng Li, Hongxia Zhao*, Yuhong Su*, Shafiul Azam, Jiawen Shao

Environ. Sci.: Processes Impacts 2026; 28 (5): 1385–1395. https://doi.org/10.1039/d6em00139d

     
     
     
Photoaging of four microplastics under diverse conditions: characteristics and leachate composition studies

Jing Yang, Jing He*, Kening Tian

Environ. Sci.: Processes Impacts 2026; 28 (5): 1552–1565. https://doi.org/10.1039/d6em00102e

 
     
     
     
Fenthion reacts rapidly with atmospheric ˙OH, while its reaction with O3 is slow. The PS is found to be highly reactive. The subsequent reactions with O2, and ˙OH, forms closed-shell products which are developmental toxicants.   Atmospheric oxidation of fenthion initiated by hydroxyl radical and ozone

A. Bhavadharini, L. Sandhiya, K. Senthilkumar*

Environ. Sci.: Processes Impacts 2026; 28 (5): 1323–1337. https://doi.org/10.1039/d5em00984g

Tobacco-specific alkaloid (TSA) formation in aged e-cigarette juices: mechanistic insights into hydroxyl radical-initiated nicotine oxidation

Xinyang Guo, Bradley H. Isenor, Kimberly Wong, James Davis, Arthur Chan, Ran Zhao*

Environ. Sci.: Processes Impacts 2026; 28 (5): 1338–1347. https://doi.org/10.1039/d5em01030f

 
     
     
     
  Manganese oxide-mediated halogenation of carbazole under marine-related conditions

Meng Zhang, Jia Tang, Kunde Lin*

Environ. Sci.: Processes Impacts 2026; 28 (5): 1299–1308. https://doi.org/10.1039/d6em00064a

     
     
     
Machine learning-driven QSAR models for the prediction of metabolic mechanisms and thyroid hormone-disrupting effects of emerging pollutants in the human body: a case study of bisphenol analogues

Zijian Wang, Qingzhu Zhang*, Wenxing Wang, Qiao Wang

Environ. Sci.: Processes Impacts 2026; 28 (4): 949–960. https://doi.org/10.1039/d5em00891c

 
     
     
     
  Artificial turf fields act as recurring point sources of metals and emerging tire-derived contaminants in stormwater

Kate J. Moloney, Timothy F. M. Rodgers, Rachel C. Scholes*

Environ. Sci.: Processes Impacts 2026; 28 (4): 935–948. https://doi.org/10.1039/d5em01016k

     
     
     
Wavelength-specific UV LED and far-UVC degradation of microplastics 

Thusitha Rathnayake, Paul Onkundi Nyangaresi, Sara E. Beck*

Environ. Sci.: Processes Impacts 2026; 28 (4): 1015–1029. https://doi.org/10.1039/d5em00818b

 
     
     
     
  Atmospheric fate of 4:2 fluorotelomer alcohol using an oxidation flow reactor and proton transfer reaction time-of-flight mass spectrometry

Alessia A. Colussi, Trevor C. VandenBoer, Cora J. Young*, John Liggio*

Environ. Sci.: Processes Impacts 2026; 28 (4): 986–997. https://doi.org/10.1039/d5em00943j

     
     
     
Chlorine disinfection enhances the degradation of biodegradable microplastics into nanoplastics and dissolved organic carbon in a simulated disinfection process

Xuefeng Jiang, Jianxin Fan*, Siyu Xu, Bocong Huang, Jiaoxia Sun

Environ. Sci.: Processes Impacts 2026; 28 (3): 805–816. https://doi.org/10.1039/d6em00030d

 
     
     
     
  Characteristics and mechanisms of dissolved organic matter leached by photodegradation of polyethylene microplastics: role of adsorbed antibiotics

Yanan Chen, Yunkun Qian*, Fan Liu

Environ. Sci.: Processes Impacts 2026; 28 (2): 624–634. https://doi.org/10.1039/d5em00805k

     
     
     
Minor influence of climbing hall characteristics on rubber-derived compound contamination highlights a need for material-level solutions

Anya Sherman, Laura Lotteraner, Leah K. Maruschka, Thilo Hofmann*

Environ. Sci.: Processes Impacts 2026; 28 (2): 468–480. https://doi.org/10.1039/d5em00812c

 
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