Aquatic toxicity tests with substances that are poorly soluble in water and consequences for environmental risk assessment

2012 ◽  
Vol 31 (7) ◽  
pp. 1662-1669 ◽  
Author(s):  
Gabriel S. Weyman ◽  
Hans Rufli ◽  
Lennart Weltje ◽  
Edward R. Salinas ◽  
Marc Hamitou
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Aquatic Toxicity ◽  
Toxicity Tests ◽  
Poorly Soluble

scholarly journals Environmental Risk Assessment Resulting from Sediment Contamination with Perfluoroalkyl Substances

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 116
Author(s):  
Grażyna Gałęzowska ◽  
Justyna Rogowska ◽  
Ewa Olkowska ◽  
Wojciech Ratajczyk ◽  
Lidia Wolska
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Treatment Plant ◽  
River Mouth ◽  
Ultra Performance Liquid Chromatography ◽  
Perfluoroalkyl Substances ◽  
Toxicity Tests ◽  
Aquatic Life ◽  
Vistula River

Due to wide use of perfluoroalkyl substances (PFASs) (e.g., in metal-plating, in fire-fighting foam, lubricants) and their resistance to degradation, they occur widely in the environment. The aim of this study was to estimate the environmental risk resulting from the presence of PFASs in the Gulf of Gdansk. Therefore, 17 PFASs concentrations were determined using ultra performance liquid chromatography with tandem mass spectrometry detection (UPLC-MS/MS). Additionally, sediment ecotoxicity was investigated. The results of the chemical analysis were used to asses environmental risk of PFASs. In samples collected around discharge collectors from a wastewater treatment plant and the Vistula mouth, Σ17PFASs values were 0.00403 ÷ 40.6 and 0.509 ÷ 614 ng/g d.w., respectively. In samples collected around discharge collectors, PFHxA, PFPeA, PFHpA, and PFOA were dominating, while at the Vistula River mouth, PFHxS, PFDS, and PFBS were prevalent. For most sediments, no toxic effect was observed in the toxicity tests with Heterocypris inconguens and Aliivibrio ficsheri. There was no observed correlation between the PFASs level and their ecotoxicity. Generally, the results of environmental risk assessment indicate that the PFASs would not generate high impact on the aquatic life (five water samples have shown medium risk related to PFBS and PFDoA).

Reducing Uncertainty in Environmental Risk Assessment (Era): Clearly Defining Acute and Chronic Toxicity Tests

2009 ◽  
Vol 5 (1) ◽  
pp. 175 ◽  
Author(s):  
Torsten Hahn ◽  
Jenny Stauber ◽  
Stuart Dobson ◽  
Paul Howe ◽  
Janet Kielhorn ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Chronic Toxicity ◽  
Toxicity Tests ◽  
Acute And Chronic Toxicity

scholarly journals morse: an R-package in support of Environmental Risk Assessment

2021 ◽  
Author(s):  
Sandrine Charles ◽  
Virgile Baudrot
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Survival Data ◽  
R Package ◽  
Toxicity Tests ◽  
Model Parameters ◽  
Risk Indicator ◽  
Data Set ◽  
Toxicity Indices

Package morse is devoted to the analysis of experimental data collected from standard toxicity tests. It provides ready-to-use functions to visualize a data set and to estimate several toxicity indices to be further used in support of environmental risk assessment in full compliance with regulatory requirements. Such toxicity indices are indeed classical requested by standardized regulatory guidelines on which national agencies base their evaluation of applications for marketing authorisation of chemical active substances. Package morse can be used to get estimates of LCx (x% Lethal Concentration) or ECx (x% Effective Concentration) by fitting standard exposure-response models on toxicity test data. Risk indicator estimates as well as model parameters are provided along with the quantification of their uncertainty. Package morse can also be used to get estimates of the NEC (No Effect Concentration) by fitting a Toxicokinetic-Toxicodynamic (TKTD) model (namely GUTS models, that is General Unified Threshold models of Survival). Using GUTS models also allow to get estimates of LC(x,t) (whatever x and t) and LP(x,t), this later being defined by EFSA as the x% multiplication factor leading to an additional reduction of x% in survival at the end of the exposure profile. Above all, GUTS models can be used on data collected under time-variable exposure profiles. This paper illustrates a typical use of morse with survival data collected over time and at different increasing exposure concentrations, analysed with the reduced version of GUTS models based on the stochastic death hypothesis (namely, the GUTS-RED-SD model). This example can be followed step-by-step to analyse any new data set, as long as the data set format is respected.

An approach to environmental risk assessment using avian toxicity tests

1988 ◽  
Vol 17 (2) ◽  
pp. 263-271 ◽  
Author(s):  
Mostafa A. Shirazi ◽  
Richard S. Bennett ◽  
LeVaughn Lowrie
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Toxicity Tests

Comparative Environmental Risk Assessment of Auckland City's Drainage System

2002 ◽  
Author(s):  
Matthew D. Davis ◽  
Mels Barton ◽  
Eric Darbyshire ◽  
Onno Ursem
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Drainage System

Perceptions and Acceptance of CCUS Environmental Risk Assessment, by Experts and Government Officers, in China

2019 ◽  
Author(s):  
Guizhen Liu ◽  
Bofeng Cai ◽  
Qi Li ◽  
Gregory Leamon ◽  
Libin Cao ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment

Ecosystem Health, Landscape Vulnerability, and Environmental Risk Assessment

1998 ◽  
Vol 4 (1) ◽  
pp. 52-60 ◽  
Author(s):  
Gregory E. Vilchek
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Ecosystem Health

scholarly journals Environmental risk assessment of transgene products using honey bee (Apis mellifera) larvae

Apidologie ◽  
2003 ◽  
Vol 34 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Henrik F. Brodsgaard ◽  
Camilla J. Brodsgaard ◽  
Henrik Hansen ◽  
G�bor L. L�vei
Keyword(s):  
Risk Assessment ◽  
Apis Mellifera ◽  
Honey Bee ◽  
Environmental Risk ◽  
Environmental Risk Assessment

The zebrafish embryo model in environmental risk assessment—applications beyond acute toxicity testing

2008 ◽  
Vol 15 (5) ◽  
pp. 394-404 ◽  
Author(s):  
Stefan Scholz ◽  
Stephan Fischer ◽  
Ulrike Gündel ◽  
Eberhard Küster ◽  
Till Luckenbach ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Acute Toxicity ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Zebrafish Embryo ◽  
Toxicity Testing ◽  
Acute Toxicity Testing
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