Toward a conceptual approach for assessing risks from chemical mixtures and other stressors to coastal ecosystem services

Kristian Syberg*, Thomas Backhaus, Gary Thomas Banta, Peter Bruce, Mikael Gustavsson, Wayne R. Munns Jr., Robert Rämö, Henriette Selck, Jonas S. Gunnarsson

*Kontaktforfatter

Publikation: Bidrag til tidsskriftKonferenceartikelForskningpeer review

Abstract

Growth of human populations and increased human activity, particularly in coastal areas, increase pressure on coastal ecosystems and the ecosystem services (ES) they provide. As a means toward being able to assess the impact of multiple stressors on ES, in the present study we propose an 8-step conceptual approach for assessing effects of chemical mixtures and other stressors on ES in coastal areas: step A, identify the relevant problems and policy aims; step B, identify temporal and spatial boundaries; step C, identify relevant ES; step D, identify relevant stressors (e.g., chemicals); step E, translate impacts into ES units; step F, assess cumulative risk in ES units; step G, rank stressors based on their contribution to adverse effects on ES; and step H, implement regulation and management as appropriate and necessary. Two illustrative case studies (Swedish coastal waters and a coastal lagoon in Costa Rica) are provided; one focuses on chemicals that affect human food supply and the other addresses pesticide runoff and trade-offs among ES. The 2 cases are used to highlight challenges of such risk assessments, including use of standardized versus ES-relevant test species, data completeness, and trade-offs among ES. Lessons learned from the 2 case studies are discussed in relation to environmental risk assessment and management of chemical mixtures.
OriginalsprogEngelsk
TidsskriftIntegrated Environmental Assessment and Management
Vol/bind13
Udgave nummer2
Sider (fra-til)376–386
ISSN1551-3777
DOI
StatusUdgivet - mar. 2017
Udgivet eksterntJa
BegivenhedEnvironmental Risk – Assessing and Managing Multiple Risks in a Changing World: SUNRISE Environmental Risk Workshop - Roskilde University, Roskilde, Danmark
Varighed: 16. nov. 201517. nov. 2015

Workshop

WorkshopEnvironmental Risk – Assessing and Managing Multiple Risks in a Changing World
LokationRoskilde University
Land/OmrådeDanmark
ByRoskilde
Periode16/11/201517/11/2015

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