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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

Artikel i vetenskaplig tidskrift
Författare Mikael Gustavsson
J. Magner
Bethanie Carney Almroth
M. K. Eriksson
Joachim Sturve
Thomas Backhaus
Publicerad i Marine Pollution Bulletin
Volym 122
Nummer/häfte 1-2
Sidor 409-419
ISSN 0025-326X
Publiceringsår 2017
Publicerad vid Institutionen för biologi och miljövetenskap
Sidor 409-419
Språk English
Länkar doi.org/10.1016/j.marpolbul.2017.06...
Ämnesord Chemical mixture, Risk assessment, Non-target screening, Multi-residue screening, Tridosan, Quality standards, joint algal toxicity, risk-assessment, surface waters, pesticide, mixtures, marine periphyton, mass-spectrometry, triclosan, pharmaceuticals, contamination, pollutants, Environmental Sciences & Ecology, Marine & Freshwater Biology, HA, 2014, Transitional Guidance on Mixture Toxicity Assessment for Biocidal Products for the Environment, HA, 2014, Search for Chemicals, HA, 2015, Opinion on the Application for Approval of the Active Substance: Triclosan ECHA/BPC/066/2015, HA, 2016, Biocidal Active Substances, HA, 2015, Opinion on the Application for Approval of the Active Substance: Irgarol ECHA/BPC/065/2015
Ämneskategorier Biologiska vetenskaper, Geovetenskap och miljövetenskap

Sammanfattning

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.

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