Back to Search
Start Over
Toxicity and bioaccumulation of bromadiolone to earthworm Eisenia fetida
- Source :
- Chemosphere. 135
- Publication Year :
- 2014
-
Abstract
- Bromadiolone, a potent second-generation anticoagulant rodenticide, has been extensively used worldwide for the field control of rodents. Invertebrates may be at risk from primary poisoning as a result of bromadiolone bait applications. However, there are few data regarding the toxicity and bioaccumulation of bromadiolone to earthworms. In this study, we reported that bromadiolone was toxic to earthworms at 1mg/kg soil, which is a likely concentration in the field following application of bromadiolone baits. Exposure to bromadiolone resulted in a significant inhibition of earthworm growth. The antioxidant activities of superoxide dismutase and catalase were slightly increased in earthworms, while malondialdehyde content (as a molecular marker indicative of the damage to lipid peroxidation) was dominantly elevated over the duration of exposure. Bromadiolone in soil is bioaccumulative to earthworms. The biota to soil accumulation factors (BSAFs) of bromadiolone were concentration dependent and BSAFs decreased as the level of bromadiolone in soil increased. These results suggest earthworms are not only the potential subject to primary poisoning but also the source of secondary exposure for insectivores and scavengers following application of bromadiolone.
- Subjects :
- Eisenia fetida
Environmental Engineering
Health, Toxicology and Mutagenesis
Bromadiolone
Lipid peroxidation
Toxicology
chemistry.chemical_compound
Soil
Malondialdehyde
Environmental Chemistry
Animals
Soil Pollutants
Rodenticide
Oligochaeta
biology
Superoxide Dismutase
Earthworm
Public Health, Environmental and Occupational Health
General Medicine
General Chemistry
4-Hydroxycoumarins
biology.organism_classification
Catalase
Pollution
chemistry
Bioaccumulation
Toxicity
biology.protein
Lipid Peroxidation
Biomarkers
Subjects
Details
- ISSN :
- 18791298
- Volume :
- 135
- Database :
- OpenAIRE
- Journal :
- Chemosphere
- Accession number :
- edsair.doi.dedup.....aaa56f8dad23abd55c5afc4787f5eb51