es0c00522_si_002.xlsx (28.05 kB)
Passive Samplers vs Sentinel Organisms: One-Year Monitoring of Priority and Emerging Contaminants in Coastal Waters
dataset
posted on 2020-05-22, 10:13 authored by Marina G. Pintado-Herrera, Ian J. Allan, Eduardo González-Mazo, Pablo A. Lara-MartínTemporal monitoring of pollutants
in aquatic systems impacted by
human activities is mandatory for a correct assessment on their environmental
impact and later management. The aim of this work was to study the
suitability of using silicone rubber passive samplers and caged organisms
(Ruditapes philippinarum), simultaneously, to examine
the spatial and temporal variability of priority and emerging contaminants
in a coastal environment (Cadiz Bay, SW Spain) over the course of
an entire year. Seasonal trends were observed for some classes of
compounds, such as UV filters and fragrances, and attributed to fluctuations
in their sources and changes in the hydrodynamic conditions, respectively.
Up to 42 out of 48 (in seawater) and 27 out of 37 (in biota) target
analytes were detected, the highest concentrations being observed
for synthetic fragrances and UV filters in both biota (136.9–159
ng g–1) and the dissolved phase (3322.2–265.7
ng L–1). Conversely, spatiotemporal differences
in the concentrations of target contaminants in clam tissues were
minimal. Higher field bioaccumulation factors (log BAF > 5) were
found
for priority substances. Overall, silicone rubber passive samplers
proved to be more sensitive than sentinel organisms for monitoring
spatiotemporal changes in the dissolved aqueous concentrations of
contaminants, whereas the latter allowed for a more realistic evaluation
of the potential uptake and bioaccumulation of each compound.