Journal
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
Volume 65, Issue -, Pages 82-89Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.etap.2018.12.009
Keywords
Microplastic; Water sources; Sediment; Pollutant; Abundance
Funding
- Funding Project of Sino-Africa Joint Research Center, Chinese Academy of Sciences [Y623321K01]
- National Natural Science Foundation of China [31361140360]
- Hundred Talents Program of the Chinese Academy of Sciences [Y329671K01]
- Natural Science Foundation of Hubei Province of China [2016CFB284]
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As the source of water for the South-to-North Water Diversion Project of China, the water quality of the Danjiangkou Reservoir (DJKR) is related to the safety of drinking water for billions of residents. Consequently, microplastics in surface water and sediment samples of the DJKR were investigated in this study. Microplastics were observed in all water and sediment samples with abundances varying from 467 to 15,017 n/m(3) and 15 to 40 n/kg wet weight, respectively. Microplastics were rich in colour and dominated by fibrous items. Small-sized particles (< 2 mm) were more frequently observed than other sizes. Analysis by micro-Raman spectroscopy showed that polypropylene was the major polymer type. These systematic results demonstrated that the DJKR is suffering from the pollution of microplastics, which should be paid more attention based on its potential threat to the aquatic organisms and residents impacted by the drinking water source pollution.
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