Journal
ENVIRONMENT INTERNATIONAL
Volume 136, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.envint.2020.105480
Keywords
Microplastics; Methamphetamine; Trophic transfer; Enantioselective; Biological effect
Categories
Funding
- National Natural Science Foundation of China [21577075, 21707078]
- Major Science and Technology Program for Water Pollution Control and Treatment in China [2017ZX07202006]
- National Natural Science Foundation of Guangdong Province [2018A030313945]
- Science and Technology Program of Guangzhou, China [201804010234]
Ask authors/readers for more resources
The biological impacts of microplastics on many organisms have been well documented. However, the combined effects of microplastics and chiral chemicals on the aquatic food chain are less clear. In the present study, the enantioselective environmental behaviors of methamphetamine co-exposed with microplastics through an aquatic food chain (from Chlorella pyrenoidosa to Cipangopaludian cathayensis) have been investigated in a laboratory environment. It was found that the acute toxicity of methamphetamine against these two species was significantly increased in the presence of microplastics: Chlorella pyrenoidosa showed an EC50 shift from 0.77 to 0.32 mg L-1, while cipangopaludian cathayensis showed an LC50 shift from 4.15 to 1.48 mg L-1, upon the addition of microplastics as a co-contaminant with methamphetamine. Upon exposure to methamphetamine and microplastics, the oxidative damage of algae (19.9 to 36.8 nmol mgprot(-1)), apoptosis (increase about 2.17 times) and filtration rate (41.2 to 65.4 mL h(-1)) of snails were observably higher when compared to exposure to methamphetamine alone. After ingestion and accumulation of microplastics, the enantioselectivity, BCFs, BMFs, and distribution of methamphetamine were significantly altered. These results provide evidence that the cooccurrence of microplastics and the chiral drug methamphetamine may increase the burden on aquatic species, with potential further impacts throughout aquatic food chain.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available