Perfluorooctane sulfonic acid (PFOS) adsorbed to polyethylene microplastics: Accumulation and ecotoxicological effects in the clam Scrobicularia plana
نویسندگان
چکیده
Microplastics are widespread in the marine environment, whereby uptake of these tiny particles by organisms, can cause adverse biological responses. Plastic debris also act as a vector many contaminants, herein depending on type, size, shape and chemical properties, possibly intensifying their effects organisms. This study aimed to assess accumulation potential toxicity different sizes microplastics with without adsorbed perfluorooctane sulfonic acid (PFOS) clam Scrobicularia plana. Clams were exposed low-density polyethylene (1 mg L−1) two (4–6 20–25 μm) virgin contaminated PFOS (55.7 ± 5.3 46.1 2.9 μg g−1 respectively) over 14 days. Microplastic ingestion, filtration rate determined along multi biomarker approach ingestion. Biomarkers include oxidative stress (superoxide dismutase, catalase, glutathione peroxidases), biotransformation enzymes (glutathione-S-transferases activity), neurotoxicity (acetylcholinesterase damage apoptosis. ingestion was microplastic size dependent but not reduced at end exposure. Reactive oxygen species gills digestive gland generated result exposure both types microplastics, confirming disturbance antioxidant system. Larger microparticles lead stronger impacts, when compared smaller ones which supported Integrated Biomarker Responses index calculated for tissues. An anti-apoptotic response detected glands under any MPs treatments.
منابع مشابه
Perfluorooctane sulfonic acid (PFOS) accumulates in the liver and blood of exposed organisms
متن کامل
Transfer of perfluorooctane sulfonic acid (PFOS) from contaminated feed to dairy milk.
Dietary intake is the predominant route for human exposure to perfluorooctane sulfonic acid (PFOS). Single pollution events may thus affect human exposure if polluted ground and water is used to produce animal feed or food. In this study, a physiologically based pharmacokinetic (PBPK-) model is derived that describes the uptake of PFOS from contaminated feed by cows and its subsequent eliminati...
متن کاملAcid and alkaline phosphatase activities in the clam Scrobicularia plana: kinetic characteristics and effects of heavy metals.
The acid and alkaline phosphatase activities of the clam Scrobicularia plana have been partially characterised in different organs and tissues (digestive gland, gills, foot, siphon and mantle) and the 'in vitro' effect of heavy metals on both types of enzymatic activity have been analysed. The optimal pH ranged between 4.0 and 5.5 for acid phosphatase activity and 8.5 and 9.5 for alkaline phosp...
متن کاملElectrochemical treatment of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in groundwater impacted by aqueous film forming foams (AFFFs).
Laboratory experiments were performed to evaluate the use of electrochemical treatment for the decomposition of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), as well as other perfluoroalkyl acids (PFAAs), in aqueous film forming foam (AFFF)-impacted groundwater collected from a former firefighter training area and PFAA-spiked synthetic groundwater. Using a commercially...
متن کاملMixture-specific gene expression in zebrafish (Danio rerio) embryos exposed to perfluorooctane sulfonic acid (PFOS), perfluorohexanoic acid (PFHxA) and 3,3',4,4',5-pentachlorobiphenyl (PCB126).
Perfluorooctane sulfonic acid (PFOS) and 3,3',4,4',5-pentachlorobiphenyl (PCB126) are persistent organic pollutants of high concern because of their environmental persistence, bioaccumulation and toxic properties. Besides, the amphiphilic properties of fluorinated compounds such as PFOS and perfluorohexanoic acid (PFHxA) suggest a role in increasing cell membrane permeability and solubilizing c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Marine Environmental Research
سال: 2021
ISSN: ['1879-0291', '0141-1136']
DOI: https://doi.org/10.1016/j.marenvres.2020.105249