0
Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Sign in to save

Microfibers generated from the laundering of cotton, rayon and polyester based fabrics and their aquatic biodegradation.

Marine pollution bulletin 2019
Marielis C Zambrano, Joel J Pawlak, Jesse Daystar, Mary Ankeny, Jay J Cheng, Richard A Venditti

Summary

This study measured the number of microfibers released during laundering of cotton, polyester, and rayon fabrics under different temperatures and detergent conditions. All three fiber types shed significant quantities of microfibers, with higher water temperatures increasing shedding — raising concerns about synthetic and natural fiber contributions to aquatic microplastic pollution.

The effect of fiber type (cotton, polyester, and rayon), temperature, and use of detergent on the number of microfibers released during laundering of knitted fabrics were studied during accelerated laboratory washing (Launder-Ometer) and home laundering experiments. Polyester and cellulose-based fabrics all shed significant amounts of microfibers and shedding levels were increased with higher water temperature and detergent use. Cellulose-based fabrics released more microfibers (0.2-4 mg/g fabric) during accelerated laundering than polyester (0.1-1 mg/g fabric). Using well-controlled aquatic biodegradation experiments it was shown that cotton and rayon microfibers are expected to degrade in natural aquatic aerobic environments whereas polyester microfibers are expected to persist in the environment for long periods of time.

Share this paper