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Chemical monitoring of Swedish coastal waters indicates common exceedances of environmental thresholds, both for individual substances as well as their mixtures

B. M. Gustaysson ; J. Magner ; B. C. Almroth ; Karl Martin Eriksson (Institutionen för mekanik och maritima vetenskaper) ; J. Sturve ; T. Backhaus
Marine Pollution Bulletin (0025-326X). Vol. 122 (2017), 1-2, p. 409-419.
[Artikel, refereegranskad vetenskaplig]

Chemical pollution was monitored and assessed along the Swedish west coast. 62 of 172 analyzed organic chemicals were detected in the water phase of at least one of five monitored sites. A Concentration Addition based screening-level risk assessment indicates that all sites are put at risk from chemical contamination, with total risk quotients between 2 and 9. Only at one site did none of the individual chemicals exceeded its corresponding environmental threshold (PNEC, EQS). The monitoring data thus demonstrate a widespread blanket of diffuse pollution, with no clear trends among sites. Further issues critical for the environmental chemical risk assessment include the challenges to achieve sufficiently low levels of detection, especially for hormones and cypermethrin (a pyrethroid insecticide), the appropriate consideration of non-detects and the limited availability of reliable PNECs and EQS values.

Nyckelord: Joint Algal Toxicity, Risk-Assessment, Surface Waters, Pesticide, Mixtures, Marine Periphyton, Mass-Spectrometry, Triclosan, Pharmaceuticals, Contamination, Pollutants,Chemical mixture, Risk assessment, Non-target screening, Multi-residue screening, Tridosan



Denna post skapades 2017-09-12.
CPL Pubid: 251842

 

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Institutioner (Chalmers)

Institutionen för mekanik och maritima vetenskaper

Ämnesområden

Miljökemi
Marin teknik

Chalmers infrastruktur