Nilsson, Hans
- Institutionen för akvatiska resurser (SLU Aqua), Sveriges lantbruksuniversitet
Sammanfattning
Integrative passive sampling with devices such as semipermeable membrane devices generally relies on rigs for month-long static exposures in water. We evaluate here whether mobile exposures of passive samplers can provide reliable estimates of dissolved contaminant concentrations. Mobile exposures were obtained by towing samplers fastened to the end of a benthic trawl net. Significant and reproducible absorption of polycyclic aromatic hydrocarbons during 5 h-long deployments was made possible by high sampling rates resulting from high water turbulences during towing at 1.2-1.5 knots. Sampling rates (72-215 L d(-1)) estimated from the dissipation of performance reference compounds were supported by in situ calibration with samplers exposed for a 30 days in the vicinity of the test site. Higher fluoranthene and pyrene absorption in samplers exposed to the trawling-induced sediment plume could be attributed to desorption from re-suspended sediments. This mode of exposure has the potential to be used in monitoring programmes. (C) 2011 Elsevier Ltd. All rights reserved
Publicerad i
Environmental Pollution
2011, volym: 159, nummer: 10, sidor: 2393-2397
SLU författare
Globala målen (SDG)
SDG3 God hälsa och välbefinnande
SDG6 Rent vatten och sanitet för alla
SDG14 Hav och marina resurser
UKÄ forskningsämne
Miljö- och naturvårdsvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1016/j.envpol.2011.06.039
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/36869