Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays
The disposal of munitions in marine coastal areas after World Wars I and II has raised significant concerns about environmental contamination and human health risks. This study investigates the acute cytotoxicity of munition-related chemicals commonly detected near marine dumpsites, focusing on degr...
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| Format: | Article |
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Elsevier
2025-02-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651325002039 |
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| author | João Barbosa Colin R. Janssen Marijke Neyts Koen Parmentier Frédéric Laduron Kris Geukens Philippe François Jana Asselman |
| author_facet | João Barbosa Colin R. Janssen Marijke Neyts Koen Parmentier Frédéric Laduron Kris Geukens Philippe François Jana Asselman |
| author_sort | João Barbosa |
| collection | DOAJ |
| description | The disposal of munitions in marine coastal areas after World Wars I and II has raised significant concerns about environmental contamination and human health risks. This study investigates the acute cytotoxicity of munition-related chemicals commonly detected near marine dumpsites, focusing on degradation products of explosives and related compounds (E&RC) and degradation products of chemical warfare agents and related compounds (CWA&RC). The research examines three CWA&RC (1,4-oxathiane, 1,4-dithiane, thiodiglycol) and four E&RC (2,4,6-trinitrotoluene, tetryl, 1,3-dinitrobenzene, picric acid) using the RTgill-W1 cell line (rainbow trout gill cells) as a proxy for fish toxicity and human cell lines (Caco2 and HepG2) to model potential human exposure via contaminated seafood. The results indicate low acute cytotoxicity of CWA&RC, while E&RC exhibit significantly higher toxicity. Notably, the EC10 and EC50 values for tetryl and 1,3-DNB in RTgill-W1 align with concentrations detected near North American dumpsites, reflecting environmentally relevant conditions. The study also reveals inter-species and inter-organ variability in toxicity mechanisms, identifying potential adverse outcome pathways such as AOP 220. These findings highlight the need for further research into chronic exposure scenarios at environmentally realistic concentrations and contribute crucial data to understanding the risks posed by the degradation products of these chemicals to aquatic life and human health. |
| format | Article |
| id | doaj-art-93f99dc402f84523b6ac07907aef34e3 |
| institution | Kabale University |
| issn | 0147-6513 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj-art-93f99dc402f84523b6ac07907aef34e32025-02-09T04:59:37ZengElsevierEcotoxicology and Environmental Safety0147-65132025-02-01291117867Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assaysJoão Barbosa0Colin R. Janssen1Marijke Neyts2Koen Parmentier3Frédéric Laduron4Kris Geukens5Philippe François6Jana Asselman7Blue Growth Research Lab, Ghent University, Bluebridge, Wetenschapspark 1, Ostend 8400, BelgiumBlue Growth Research Lab, Ghent University, Bluebridge, Wetenschapspark 1, Ostend 8400, BelgiumRoyal Belgian Institute of Natural Science (RBINS), OD Nature, ECOCHEM, 3de en 23ste Linieregimentsplein, Ostend 8400, BelgiumRoyal Belgian Institute of Natural Science (RBINS), OD Nature, ECOCHEM, 3de en 23ste Linieregimentsplein, Ostend 8400, BelgiumDefense Laboratories (DLD), Martelarenstraat 181, Vilvoorde 1800, BelgiumDefense Laboratories (DLD), Martelarenstraat 181, Vilvoorde 1800, BelgiumDefense Laboratories (DLD), Martelarenstraat 181, Vilvoorde 1800, BelgiumBlue Growth Research Lab, Ghent University, Bluebridge, Wetenschapspark 1, Ostend 8400, Belgium; Corresponding author.The disposal of munitions in marine coastal areas after World Wars I and II has raised significant concerns about environmental contamination and human health risks. This study investigates the acute cytotoxicity of munition-related chemicals commonly detected near marine dumpsites, focusing on degradation products of explosives and related compounds (E&RC) and degradation products of chemical warfare agents and related compounds (CWA&RC). The research examines three CWA&RC (1,4-oxathiane, 1,4-dithiane, thiodiglycol) and four E&RC (2,4,6-trinitrotoluene, tetryl, 1,3-dinitrobenzene, picric acid) using the RTgill-W1 cell line (rainbow trout gill cells) as a proxy for fish toxicity and human cell lines (Caco2 and HepG2) to model potential human exposure via contaminated seafood. The results indicate low acute cytotoxicity of CWA&RC, while E&RC exhibit significantly higher toxicity. Notably, the EC10 and EC50 values for tetryl and 1,3-DNB in RTgill-W1 align with concentrations detected near North American dumpsites, reflecting environmentally relevant conditions. The study also reveals inter-species and inter-organ variability in toxicity mechanisms, identifying potential adverse outcome pathways such as AOP 220. These findings highlight the need for further research into chronic exposure scenarios at environmentally realistic concentrations and contribute crucial data to understanding the risks posed by the degradation products of these chemicals to aquatic life and human health.http://www.sciencedirect.com/science/article/pii/S0147651325002039Chemical warfare agentsIn vitro toxicityEnvironmental toxicityPublic health |
| spellingShingle | João Barbosa Colin R. Janssen Marijke Neyts Koen Parmentier Frédéric Laduron Kris Geukens Philippe François Jana Asselman Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays Ecotoxicology and Environmental Safety Chemical warfare agents In vitro toxicity Environmental toxicity Public health |
| title | Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays |
| title_full | Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays |
| title_fullStr | Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays |
| title_full_unstemmed | Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays |
| title_short | Evaluating the toxicity of sea-dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays |
| title_sort | evaluating the toxicity of sea dumped conventional and chemical munition degradation products to fish and human cells using a combination of cell viability assays |
| topic | Chemical warfare agents In vitro toxicity Environmental toxicity Public health |
| url | http://www.sciencedirect.com/science/article/pii/S0147651325002039 |
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