Role of humic acid in modulating the combined toxicity of polylactic acid microplastics and diflubenzuron: Impacts on mitochondrial genotoxicity in Daphnia magna
Investigates the impacts of humic acid on toxicity from microplastics and pesticide in Daphnia magna, suggesting natural factors alter risk assessments.
Key Points
The aim is to explore how humic acid influences the toxicity of polylactic acid microplastics and diflubenzuron in aquatic environments.
Conducted acute 48-hour exposure tests on Daphnia magna.
Measured mortality and sublethal effects like oxidative stress biomarkers and mitochondrial DNA.
Examined how humic acid interacts with PLA microplastics and diflubenzuron.
Humic acid reduced the acute toxicity from the combination of PLA microplastics and diflubenzuron.
The high concentration of diflubenzuron decreased mitochondrial DNA copy number.
Compensatory mechanisms increased ATP content in Daphnia magna under combined exposure.