Pollution-induced community tolerance (PICT): towards an ecologically relevant risk assessment of chemicals in aquatic systems
Artikel i vetenskaplig tidskrift, 2016

A major challenge in environmental risk assessment of pollutants is establishing a causal relationship between field exposure and community effects that integrates both structural and functional complexity within ecosystems. Pollution-induced community tolerance (PICT) is a concept that evaluates whether pollutants have exerted a selection pressure on natural communities. PICT detects whether a pollutant has eliminated sensitive species from a community and thereby increased its tolerance. PICT has the potential to link assessments of the ecological and chemical status of ecosystems by providing causal analysis for effect-based monitoring of impacted field sites. Using PICT measurements and microbial community endpoints in environmental assessment schemes could give more ecological relevance to the tools that are now used in environmental risk assessment. Here, we propose practical guidance and a list of research issues that should be further considered to apply the PICT concept in the field.


chemical status

aquatic ecology

ecological status



A. Tlili

Eawag - Swiss Federal Institute of Aquatic Science and Technology

A. Berard

INRA Avignon

H. Blanck

Göteborgs universitet

A. Bouchez

Universite Savoie Mont Blanc

Institut national de la recherche agronomique (INRA)

F. Cassio

Universidade do Minho

Martin Eriksson

Chalmers, Sjöfart och marin teknik, Maritim miljövetenskap

S. Morin

Ecosystemes Aquatiques et Changements Globaux

B. Montuelle

Institut national de la recherche agronomique (INRA)

Universite Savoie Mont Blanc

E. Navarro

Instituto Pirenaico de Ecología

C. Pascoal

Universidade do Minho

S. Pesce

Milieux Aquatiques, Ecologie et Pollutions

M. Schmitt-Jansen


R. Behra

Eawag - Swiss Federal Institute of Aquatic Science and Technology

Freshwater Biology

0046-5070 (ISSN) 1365-2427 (eISSN)

Vol. 61 12 2141-2151


Oceanografi, hydrologi, vattenresurser




Mer information

Senast uppdaterat