Zhanyun Wang

University of Maryland, Baltimore

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Co-Authors

Martin Scheringer

ETH Zurich

Ian T. Cousins

Stockholm University

Xenia Trier

University of Copenhagen

Miriam L. Diamond

University of Toronto

Carla A. Ng

University of Pittsburgh

Juliane Glüge

ETH Zurich

Jamie C. DeWitt

North Carolina State University

Gretta Goldenman

Leefmilieu Brussel

Rainer Lohmann

University of Rhode Island

Dorte Herzke

Norwegian Institute for Air Research

Cooperative Institutions

ETH Zurich

Chinese Academy of Sciences

Swiss Federal Institute of Aquatic Science and Technology

Stockholm University

Environmental Protection Agency

Boston College

Johns Hopkins University

Helmholtz Centre for Environmental Research

University of Maryland, Baltimore

University of Toronto

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Global emission inventories for C4–C14 perfluoroalkyl carboxylic acid (PFCA) homologues from 1951 to 2030, Part I: production and emissions from quantifiable sources

Environment International (2014)

Zhanyun Wang Ian T. Cousins Martin Scheringer Robert C. Buck Konrad Hungerbühler

Perfluorooctanoic acid

Fluoropolymer

Tonne

10.1016/j.envint.2014.04.013

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Citations (592)

An overview of the uses of per- and polyfluoroalkyl substances (PFAS)

Environmental Science Processes & Impacts (2020)

Juliane Glüge Martin Scheringer Ian T. Cousins Jamie C. DeWitt Gretta Goldenman

Systematic description of more than 200 uses of PFAS and the individual substances associated with each of them (over 1400 PFAS in total).

10.1039/d0em00291g

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Citations (1,165)

Addressing Urgent Questions for PFAS in the 21st Century

Environmental Science & Technology (2021)

Carla A. Ng Ian T. Cousins Jamie C. DeWitt Juliane Glüge Gretta Goldenman

Despite decades of research on per- and polyfluoroalkyl substances (PFAS), fundamental obstacles remain to addressing worldwide contamination by these chemicals and their associated impacts on environmental quality and health. Here, we propose six urgent questions relevant to science, technology, and policy that must be tackled to address the "PFAS problem": (1) What are the global production volumes of PFAS, and where are PFAS used? (2) Where are the unknown PFAS hotspots in the environment? (3) How can we make measuring PFAS globally accessible? (4) How can we safely manage PFAS-containing waste? (5) How do we understand and describe the health effects of PFAS exposure? (6) Who pays the costs of PFAS contamination? The importance of each question and barriers to progress are briefly described, and several potential paths forward are proposed. Given the diversity of PFAS and their uses, the extreme persistence of most PFAS, the striking ongoing lack of fundamental information, and the inequity of the health and environmental impacts from PFAS contamination, there is a need for scientific and regulatory communities to work together, with cooperation from PFAS-related industries, to fill in critical data gaps and protect human health and the environment.

10.1021/acs.est.1c03386

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Citations (107)

Strategies for grouping per- and polyfluoroalkyl substances (PFAS) to protect human and environmental health

Environmental Science Processes & Impacts (2020)

Ian T. Cousins Jamie C. DeWitt Juliane Glüge Gretta Goldenman Dorte Herzke

Grouping strategies are needed for per- and polyfluoroalkyl substances (PFAS), in part, because it would be time and resource intensive to test and evaluate the more than 4700 PFAS on the global market on a chemical-by-chemical basis.

10.1039/d0em00147c

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Citations (215)

The Concept of Essential Use for Determining When Uses of PFASs Can Be Phased Out

Ian T. Cousins Gretta Goldenman Dorte Herzke Rainer Lohmann Mark F. Miller

Because of the extreme persistence of per- and polyfluoroalkyl substances (PFASs) and their associated risks, the Madrid Statement argues for stopping their use where they are deemed not essential or when safer alternatives exist. To determine when uses of PFASs have an essential function in modern society, and when they do not, is not an easy task. Here, we: 1) develop the concept of “essential use” based on an existing approach described in the Montreal Protocol, 2) apply the concept to various uses of PFASs to determine the feasibility of elimination or substitution of PFASs in each use category, and 3) outline the challenges for phasing out uses of PFASs in society. In brief, we developed three distinct categories to describe the different levels of essentiality of individual uses. A phase-out of many uses of PFASs can be implemented because they are not necessary for the betterment of society in terms of health and safety, or because functional alternatives are currently available that can be substituted into these products or applications. Some specific uses of PFASs would be considered essential because they provide for vital functions and are currently without established alternatives. However, this essentiality should not be considered as permanent; rather, constant efforts are needed to search for alternatives. We provide a detailed description of several ongoing uses of PFASs and discuss whether these uses are essential or nonessential according to the three essentiality categories. We suggest applying this concept of essential uses to all uses of PFASs, and considering its use also for other chemicals of concern.

SAFER

Statement (logic)

Montreal Protocol

10.26434/chemrxiv.7965128.v1

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Citations (16)

A modeling assessment of the physicochemical properties and environmental fate of emerging and novel per- and polyfluoroalkyl substances

The Science of The Total Environment (2014)

Melissa Gomis Zhanyun Wang Martin Scheringer Ian T. Cousins

10.1016/j.scitotenv.2014.10.062

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Citations (173)

Continuing large-scale global trade and illegal trade of highly hazardous chemicals

Nature Sustainability (2023)

Hongyan Zou Tao Wang Zhong‐Liang Wang Zhanyun Wang

Abstract Pollution caused by anthropogenic chemicals contributes to interlinked planetary crises, together with climate change and biodiversity loss. One of the key treaties adopted to regulate the transboundary movements of hazardous chemicals is the Rotterdam Convention, which created a framework for countries to better handle the international trade of certain hazardous chemicals. To date, research examining the effectiveness of the Convention has been scarce. Here we analysed 66,156 trade records from the United Nations Comtrade database using a workflow that comprehensively addresses data-quality issues in the database. We found that for 46 listed chemicals, at least 64.5 megatonnes were traded in 2004–2019, and illegal trade was prevalent, reaching at least 25,324 trade records and 25.7 megatonnes. For over 70% of the listed chemicals, the Convention has played a positive role, but large-scale trade of some well-known chemicals such as tetraethyl and tetramethyl lead continues. Concerted efforts are warranted to improve how highly hazardous chemicals are traded globally, including enhancing enforcement of the Convention, addressing illegal trade and swiftly listing problematic chemicals (for example, chrysotile asbestos) in the Convention.

Listing (finance)

10.1038/s41893-023-01158-w

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Citations (9)

Per- and polyfluoroalkylether substances: identity, production and use

Zhanyun Wang Gretta Goldenman Tugce Tugran Alicia McNeil Matthew W. Jones

Perfluorooctanoic acid PFOSPerfluorooctane sulfonic acid PFSA Perfluoroalkane sulfonic acid

Sulfonic acid

Perfluorooctanoic acid

10.6027/na2020-901

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Citations (15)

A Never-Ending Story of Per- and Polyfluoroalkyl Substances (PFASs)?

Environmental Science & Technology (2017)

Zhanyun Wang Jamie C. DeWitt Christopher P. Higgins Ian T. Cousins

More than 3000 per- and polyfluoroalkyl substances (PFASs) are, or have been, on the global market, yet most research and regulation continues to focus on a limited selection of rather well-known long-chain PFASs, particularly perfluorooctanesulfonate (PFOS), perfluorooctanoic acid (PFOA) and their precursors. Continuing to overlook the vast majority of other PFASs is a major concern for society. We provide recommendations for how to proceed with research and cooperation to tackle the vast number of PFASs on the market and in the environment.

Perfluorooctanoic acid

10.1021/acs.est.6b04806

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Citations (1,311)

Additional file 5 of The NORMAN Suspect List Exchange (NORMAN-SLE): facilitating European and worldwide collaboration on suspect screening in high resolution mass spectrometry

Figshare (2022)

Hiba Mohammed Taha Reza Aalizadeh ‪Nikiforos Alygizakis Jean‐Philippe Antignac Hans Peter H. Arp

Additional file 5: Authorship contributions and acknowledgements mapped to NORMAN-SLE lists (XLSX format).

Suspect

10.6084/m9.figshare.21382502

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Citations (0)