Ian Cousins

Ian Cousins
Stockholm University | SU · Department of Environmental Science and Analytical Chemistry (ACES)

BSc (Hons), MSc, PhD
Currently getting on with my research and teaching.

About

355
Publications
100,317
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
17,336
Citations
Citations since 2016
184 Research Items
12126 Citations
201620172018201920202021202205001,0001,5002,000
201620172018201920202021202205001,0001,5002,000
201620172018201920202021202205001,0001,5002,000
201620172018201920202021202205001,0001,5002,000
Introduction
My research program comprises a combination of modelling and experimental approaches to investigate the sources, transport, fate and exposure of organic pollutants. There has been much recent focus on per- and polyfluoroalkyl substances (PFAS).
Additional affiliations
January 2020 - present
Stockholm University
Position
  • Professor
January 2015 - December 2019
Stockholm University
Position
  • Professor
July 2012 - December 2014
Stockholm University
Position
  • Professor
Education
November 1994 - September 1998
Lancaster University
Field of study
  • Environmental Science
September 1990 - July 1994
University of Surrey
Field of study
  • Environmental Management
October 1986 - July 1989
The University of York
Field of study
  • Chemistry

Publications

Publications (355)
Article
Full-text available
The effective enrichment of perfluoroalkyl acids (PFAAs) in sea spray aerosols (SSA) demonstrated in previous laboratory studies suggests that SSA is a potential source of PFAAs to the atmosphere. In order to investigate the influence of SSA on atmospheric PFAAs in the field, 48 h aerosol samples were collected regularly between 2018 and 2020 at tw...
Article
Micropollutants (MPs) in wastewater pose a growing concern for their potential adverse effects on the receiving aquatic environment, and some countries have started requiring that wastewater treatment plants remove them to a certain extent. Broad spectrum advanced treatment processes, such as ozonation, activated carbon or their combination, are ex...
Article
Full-text available
Sea spray aerosol is the largest natural source of aerosol to Earth’s atmosphere with significant impacts on climate. Despite this, estimates of the impact of sea spray aerosol on Earth’s radiation budget are highly uncertain due to an overall lack of understanding of the physical and chemical factors controlling its composition. Critically, result...
Article
Full-text available
It is hypothesized that environmental contamination by per- and polyfluoroalkyl substances (PFAS) defines a separate planetary boundary and that this boundary has been exceeded. This hypothesis is tested by comparing the levels of four selected perfluoroalkyl acids (PFAAs) (i.e., perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), p...
Preprint
Full-text available
Background: In 2020, the European Commission published the Chemical Strategy for Sustainability (CSS) in which it aims to increase the level of protection for human health and the environment from hazardous chemicals. Part of the implementation of the CSS will involve a reform of the REACH authorisation and restriction processes. One option for the...
Article
Full-text available
An expert panel was convened to provide insight and guidance on per- and polyfluoroalkyl substances (PFAS) grouping for the purposes of protecting human health from drinking water exposures, and how risks to PFAS mixtures should be assessed. These questions were addressed through multiple rounds of blind, independent responses to charge questions,...
Article
Full-text available
The emission of per- and polyfluoroalkyl substances (PFAS) from functional textiles was investigated via an outdoor weathering experiment in Sydney, Australia. Polyamide (PA) textile fabrics treated with different water-repellent, side-chain fluorinated polymers (SFPs) were exposed on a rooftop to multiple natural stressors, including direct sunlig...
Article
Full-text available
Given their extensive production volumes and potential to form persistent perfluoroalkyl acids (PFAAs), there is concern surrounding the ongoing use of side-chain fluorinated polymers (SFPs) in consumer products. Targeted SFP quantification relies on matrix-assisted laser desorption ionization time-of-flight mass spectrometry, which can suffer from...
Preprint
Full-text available
Given their extensive production volumes and potential to form persistent perfluoroalkyl acids (PFAAs), there is concern surrounding the ongoing use of side-chain fluorinated polymers (SFPs) in consumer products. Targeted SFP quantification relies on matrix assisted laser desorption ionization-time-of-flight mass spectrometry, which suffers from po...
Preprint
Given their extensive production volumes and potential to form persistent perfluoroalkyl acids (PFAAs), there is concern surrounding the ongoing use of side-chain fluorinated polymers (SFPs) in consumer products. Targeted SFP quantification relies on matrix assisted laser desorption ionization-time-of-flight mass spectrometry, which suffers from po...
Article
Full-text available
Per-and polyfluoroalkyl substances (PFAS) are a class of substances for which there are widespread concerns about their extreme persistence in combination with toxic effects. It has been argued that PFAS should only be employed in those uses that are necessary for health or safety or are critical for the functioning of society and where no alternat...
Article
Full-text available
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...
Article
Full-text available
Perfluoroalkyl acids (PFAAs) are persistent organic substances that have been widely detected in the global oceans. Previous laboratory experiments have demonstrated effective enrichment of PFAAs in nascent sea spray aerosols (SSA), suggesting that SSA are an important source of PFAAs to the atmosphere. In the present study, the effects of the wate...
Article
Full-text available
A Society of Environmental Toxicology and Chemistry (SETAC) Focused Topic Meeting (FTM) on the environmental management of per‐ and polyfluoroalkyl substances (PFAS) convened during August 2019 in Durham, North Carolina (US). Experts from around the globe were brought together to critically evaluate new and emerging information on PFAS including ch...
Article
Full-text available
The essential-use concept is a tool that can guide the phase-out of per- and polyfluoroalkyl substances (PFAS) and potentially other substances of concern. This concept is a novel approach to chemicals management that determines whether using substances of concern, such as PFAS, is truly essential for a given functionality. To assess the essentiali...
Article
Per‐ and Polyfluoroalkyl Substances (PFAS) are a group of highly fluorinated synthetic chemicals that were originally developed for uses as surfactants and surface protectors. Increasingly, specific substances of this class are being found in environmental media (e.g. surface water, soils, sediments, food sources) and concerns regarding exposure to...
Article
The influence of soil properties on PFOS sorption are not fully understood, particularly for variable charge soils. PFOS batch sorption isotherms were conducted for 114 temperate and tropical soils from Australia and Fiji, that were well-characterized for their soil properties, including total organic carbon (TOC), anion exchange capacity, and surf...
Article
Full-text available
Per- and polyfluoroalkyl substances (PFAS) are of concern because of their high persistence (or that of their degradation products) and their impacts on human and environmental health that are known or can be deduced from some well-studied PFAS. Currently, many different PFAS (on the order of several thousands) are used in a wide range of applicati...
Article
Full-text available
Per- and polyfluoroalkyl substances (PFAS) are a class of synthetic organic substances with diverse structures, properties, uses, bioaccumulation potentials and toxicities. Despite this high diversity, all PFAS are alike in that they contain perfluoroalkyl moieties that are extremely resistant to environmental and metabolic degradation. The vast ma...
Article
Full-text available
Fluoropolymers are a group of polymers within the class of per-and polyfluoroalkyl substances (PFAS). The objective of this analysis is to evaluate the evidence regarding the environmental and human health impacts of fluoropolymers throughout their life cycle(s). Production of some fluoropolymers is intimately linked to the use and emissions of leg...
Article
Full-text available
In the summer of 2019, eleven of the best-selling fluorinated ski wax products were purchased from one of Norway's largest sports stores and soon after analysed for a suite of 26 per-and polyfluoroalkyl substances (PFAS). The waxes were shown to contain a wide range of perfluoroalkyl acids, including perfluoroalkyl carboxylic acids with up to 25 ca...
Preprint
Per- and polyfluoroalkyl substances (PFAS) are a class of synthetic organic substances with diverse structures, properties, uses, bioaccumulation potentials and toxicities. Despite this high diversity, all PFAS are alike in that they contain perfluoroalkyl moieties that are extremely resistant to environmental and metabolic degradation. PFAS are th...
Preprint
Full-text available
Per- and polyfluoroalkyl substances (PFAS) are of concern because of their very high persistence and impacts on human and environmental health. Currently, many different PFAS (on the order of several thousands) are used in a wide range of applications and there is no comprehensive source of information on the many individual substances and their fu...