The Science of The Total Environment, Год журнала: 2024, Номер 957, С. 177432 - 177432
Опубликована: Ноя. 15, 2024
Язык: Английский
The Science of The Total Environment, Год журнала: 2025, Номер 967, С. 178797 - 178797
Опубликована: Фев. 12, 2025
The integration of effect-based and chemical profiling has been advocated to assess the potential ecotoxicological risks posed by mixtures present in aquatic ecosystems. However, concentrations contaminants surface waters can vary greatly over time space, making it challenging ensure risk assessment. Although first results are promising, not yet proven that these combined approaches also capable capturing temporal variation risks. study aimed test this combining passive time-integrative sampling with chemical-analytical techniques agricultural waterways. Silicone rubber sheets polar organic integrative samplers (POCIS) were deployed four water bodies consecutive six-week periods. Passive sampler extracts analysed using a battery 22 vitro vivo bioassays tandem extensive target analysis 225 compounds. induced fluctuating bioassay responses for all locations during periods, highlighting presence spatial toxic pressure. A range compounds, primarily fungicides herbicides, detected periods at variable concentrations, persistent but pressure regions. toxicity observed could solely be attributed chemicals 6 % cases those explaining only 1-16.9 effects, indicating predominantly caused undetected chemicals. Risk assessments based on revealed frequent exceedances trigger values It is concluded better capture variations than traditional analyses, advanced needed explain bioanalytical response profiles.
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Analytical Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Апрель 21, 2025
Язык: Английский
Процитировано
0
Environmental Pollution, Год журнала: 2024, Номер 357, С. 124488 - 124488
Опубликована: Июль 1, 2024
The combination of integrative passive sampling and bioassays is a promising approach for monitoring the toxicity polar organic contaminants in aquatic environments. However, design samplers can affect accumulation compounds therewith bioassay responses. present study aimed to determine effects sampler housing sorbent type on number chemical features accumulated subsequent responses extracts these samplers. To this end, four configurations, resulting from (POCIS) Speedisk housings with hydrophilic-lipophilic balance hydrophilic divinylbenzene sorbents, were simultaneously exposed at reference contaminated surface water locations. subjected non-target screening battery five bioassays. Extracts POCIS contained higher caused 91% cases, while two sorbents similar numbers equally frequent but different Hence, critically affected as well their toxicity, highlighting importance effect-based quality assessment.
Язык: Английский
Процитировано
3
Environmental Pollution, Год журнала: 2024, Номер 356, С. 124330 - 124330
Опубликована: Июнь 5, 2024
Chemical pollution is one of the most important threats to freshwater ecosystems. The plethora potentially occurring chemicals and their effects in complex mixtures challenge standard monitoring methods. Effect-based methods (EBMs) are proposed as complementary tools for assessment chemical toxic effects. To investigate pollution, ecological relevance EBMs potential macroinvertebrates toxicity-specific bioindicators, ecotoxicological data were linked. Baseline toxicity, mutagenicity, dioxin-like estrogenic activity water sediment samples from 30 river sites central Germany quantified with four vitro bioassays. responses macroinvertebrate communities at these assessed by calculating 16 taxonomic functional metrics investigating changes trait composition. Principal component analysis revealed an increase toxicity along a joint gradient different modes action. This was associated decrease biodiversity quality, well significant strength suggested strong impact underlined suitability detecting relevant However, metrics, taxa, traits vulnerability or tolerance found also respond other stressors previous studies thus may have only low bioindicators. Because integratively all present stressors, linking both environmental necessary overall but isolate individual stressors. high separate multiple stressor scenario, identifying presence groups specific
Язык: Английский
Процитировано
2
Опубликована: Янв. 1, 2024
The combination of integrative passive sampling and bioassays is a promising approach for monitoring the toxicity polar organic contaminants in aquatic environments. However, design samplers can affect accumulation compounds therewith bioassay responses. present study aimed to determine effects sampler housing sorbent type on number chemical features accumulated subsequent responses extracts these samplers. To this end, four configurations, resulting from (POCIS) Speedisk housings with hydrophilic-lipophilic balance hydrophilic divinylbenzene sorbents, were simultaneously exposed at reference contaminated surface water locations. subjected non-target screening battery five bioassays. Extracts POCIS contained higher caused 91% cases, while two sorbents similar numbers equally frequent but different Hence, critically affected as well their toxicity, highlighting importance effect-based quality assessment.
Язык: Английский
Процитировано
0
Toxics, Год журнала: 2024, Номер 12(8), С. 558 - 558
Опубликована: Июль 31, 2024
Hawke's Bay in New Zealand was impacted by Cyclone Gabrielle 2023, experiencing intense weather conditions and rainfall. Rivers streams surged beyond their banks, displacing large amounts of sediment. The sewage treatment plant industries the Waitangi catchment, south city Napier, were heavily impacted, making them potential sources contaminants. aim this study to investigate risk displaced sediments deposited Napier City, using bioassays chemical analysis methods. Sediment samples collected across a gradient between coastline Stream. toxicity chemically extracted or elutriate assessed Microtox
Язык: Английский
Процитировано
0
The Science of The Total Environment, Год журнала: 2024, Номер 957, С. 177432 - 177432
Опубликована: Ноя. 15, 2024
Язык: Английский
Процитировано
0