Next Article in Journal
Community Management and the Demand for ‘Water for All’ in Angola’s Musseques
Next Article in Special Issue
Environmental Fate and Effects of Foaming Agents Containing Sodium Lauryl Ether Sulphate in Soil Debris from Mechanized Tunneling
Previous Article in Journal
Monthly Precipitation Forecasting in the Han River Basin, South Korea, Using Large-Scale Teleconnections and Multiple Regression Models
Previous Article in Special Issue
Multivariate Statistical Analysis of Hydrochemical Data and Stable Isotopes of Groundwater Contaminated with Nitrate at Huay Sai Royal Development Study Center and Adjacent Areas in Phetchaburi Province, Thailand
Article

Trophic Magnification of Legacy (PCB, DDT and Hg) and Emerging Pollutants (PFAS) in the Fish Community of a Small Protected Southern Alpine Lake (Lake Mergozzo, Northern Italy)

1
Department of Human Sciences and Innovation for the Territory (DISUIT), University of Insubria, Via S. Abbondio 12, 22100 Como (CO), Italy
2
Water Research Institute (IRSA)—CNR, Via del Mulino 19, 20861, Brugherio (MB), Italy
3
Water Research Institute (IRSA)—CNR, Largo Tonolli 50, 28922, Verbania Pallanza (VB), Italy
4
Department of Biosciences, University of Oslo, PO Box 1066, 0316 Oslo, Norway
*
Authors to whom correspondence should be addressed.
Water 2020, 12(6), 1591; https://doi.org/10.3390/w12061591
Received: 22 April 2020 / Revised: 17 May 2020 / Accepted: 2 June 2020 / Published: 3 June 2020
(This article belongs to the Special Issue Environmental Fate of Contaminants in the Aquatic Environment)
The biomagnification of mercury, polychlorobiphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs) and perfluoroalkyl acids substances (PFASs) was evaluated in the trophic web of Lake Mergozzo, a small and deep Italian subalpine lake, which has been chosen because it is a protected environment, and discharges into the lake are mostly avoided. Carbon source and relative trophic levels were calculated by using 13C and 15N stable isotopes, respectively, and trophic magnification factors (TMFs) were derived. Zooplankton and thirteen species of fish were collected and analyzed, and the results showed the elevated level of biota contamination from both legacy and emerging pollutants, even if direct discharges were avoided. Concentrations in biota, expressed as sums of compounds, ranged from 0.4 to 60 µg kg−1 wet weight (ww) for PFASs, from 16 to 1.3 104 µg kg−1 lipid content (lw) for DDTs, from 17 to 1.5 104 µg kg−1 lw for PCBs and from 20.0 to 501 µg kg−1 ww for mercury (Hg). TMFs of this deep, cold lake, with a prevalent pelagic trophic chain, were high and clearly indicated fish biomagnification, except for PFAS. The biomagnification capability of PFAS in a fish-only food web was discussed by using the biomagnification of Hg as a benchmark for assessing their bioaccumulation potential. View Full-Text
Keywords: trophic magnification factor; bioaccumulation; Hg; PFAS; organochlorine compounds; lake fish trophic magnification factor; bioaccumulation; Hg; PFAS; organochlorine compounds; lake fish
Show Figures

Graphical abstract

MDPI and ACS Style

Mazzoni, M.; Ferrario, C.; Bettinetti, R.; Piscia, R.; Cicala, D.; Volta, P.; Borgå, K.; Valsecchi, S.; Polesello, S. Trophic Magnification of Legacy (PCB, DDT and Hg) and Emerging Pollutants (PFAS) in the Fish Community of a Small Protected Southern Alpine Lake (Lake Mergozzo, Northern Italy). Water 2020, 12, 1591. https://doi.org/10.3390/w12061591

AMA Style

Mazzoni M, Ferrario C, Bettinetti R, Piscia R, Cicala D, Volta P, Borgå K, Valsecchi S, Polesello S. Trophic Magnification of Legacy (PCB, DDT and Hg) and Emerging Pollutants (PFAS) in the Fish Community of a Small Protected Southern Alpine Lake (Lake Mergozzo, Northern Italy). Water. 2020; 12(6):1591. https://doi.org/10.3390/w12061591

Chicago/Turabian Style

Mazzoni, Michela, Claudia Ferrario, Roberta Bettinetti, Roberta Piscia, Davide Cicala, Pietro Volta, Katrine Borgå, Sara Valsecchi, and Stefano Polesello. 2020. "Trophic Magnification of Legacy (PCB, DDT and Hg) and Emerging Pollutants (PFAS) in the Fish Community of a Small Protected Southern Alpine Lake (Lake Mergozzo, Northern Italy)" Water 12, no. 6: 1591. https://doi.org/10.3390/w12061591

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop