A Simple Teabag Equilibrium Passive Sampler using hydrophilic divinylbenzene sorbent for contaminants of emerging concern in the marine environment

Vanryckeghem, Francis; Huysman, Steve; Smedes, Foppe; Langenhove, Herman Van; Vanhaecke, Lynn; Demeestere, Kristof

doi:10.1016/j.scitotenv.2021.146055

Cited by 3 publications

(4 citation statements)

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“…Within the framework of a screening study in the Belgian part of the North Sea (Vanryckeghem et al 2019; Vanryckeghem 2020), we found neonicotinoid insecticides to be most acutely toxic to a marine copepod among 23 pesticides and pharmaceuticals. This inspired us to focus on neonicotinoid effects and risks in the Belgian part of the North Sea in the present study.…”

Section: Methodsmentioning

confidence: 80%

“…The risk assessment we present was only applied in 2 of those campaigns, sampling campaigns 2 and 3. For the sake of comparability between among published studies (Huysman et al 2019; Vanryckeghem et al 2019), related PhD theses (Huysman 2019; Moeris 2020; Vanryckeghem 2020), and the final project report (Parmentier et al 2020), we kept the project‐related numbering of the sampling campaigns in the present study as well. Water grab samples were taken on 25/11/2016 and 02/02/2017 for sampling campaign 2 and on 13/04/2017 and 20/06/2017 for sampling campaign 3, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Each time, triplicate samples were analyzed. More details are described in Vanryckeghem (2020). A summary of the measured environmental concentrations is given in the Supplemental Data, Table SI2.…”

Section: Methodsmentioning

confidence: 99%

“…This input results in the presence of a variety of man‐made chemicals including pesticides. Beside other commonly present pesticides like the herbicides atrazine and diuron, monitoring of the Belgian part of the North Sea resulted in the detection of various neonicotinoid insecticides (Vanryckeghem et al 2019; Vanryckeghem 2020).…”

Section: Introductionmentioning

confidence: 99%

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Neonicotinoid Insecticides from a Marine Perspective: Acute and Chronic Copepod Testing and Derivation of Environmental Quality Standards

Moeris

Vanryckeghem

Demeestere

et al. 2021

Enviro Toxic and Chemistry

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Neonicotinoid insecticides have become of global concern for the aquatic environment. Harpacticoid copepods are amongst the most sensitive organisms to neonicotinoids. Here, we exposed the brackish copepod Nitocra spinipes to four neonicotinoid insecticides, i.e. clothianidin (CLO), imidacloprid (IMI), thiacloprid (TCP) and thiamethoxam (TMX) to investigate acute toxicity on adults (96-h exposure) and effects on larval development (7-d exposure). We used these results in combination with publicly available ecotoxicity data to derive Environmental Quality Standards (EQS). These EQS were ultimately used in a single-substance and mixture risk assessment for the Belgian part of the North Sea. Acute toxicity testing revealed that immobilization is a more sensitive endpoint than mortality, with 96h-EC 50 values of 6.9, 7.2, 25 and 120 µg L-1 for CLO, TCP, IMI and TMX, respectively. In addition, the larval development tests resulted in 7d-NOECs of 2.5, 2.7, 4.2 and >99 µg L-1 for CLO, TCP, IMI and TMX, This article is protected by copyright. All rights reserved. Accepted Article respectively. The derived saltwater Annual Average (AA-)EQS were 0.05, 0.0048, 0.002 and 0.016 µg L-1 for CLO, TCP, IMI and TMX, respectively. Finally, the risk characterization revealed some exceedances of the AA-EQS in Belgian harbors for IMI (number of exceedances, n = 2/4), TCP (n = 1/4), TMX (n = 1/4) and the mixture of the four neonicotinoids (n = 4/4), but not at the open sea. At the open sea site, the toxic unit sum relative to the AA-EQS was 0.72 and 0.22, suggesting no mixture risk, albeit with a relatively small margin of safety. Including short-term EC 10 (96h) values of N. spinipes for the AA-EQS derivation led to a refinement of the AA-EQS for CLO and TMX, suggesting their use for the AA-EQS derivation since one of the overarching goals of the definition of EQS is to protect species at the population level.

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Section: Methodsmentioning

confidence: 80%