Sources and distribution of microplastics in China's largest inland lake – Qinghai Lake

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Xiong Xiong
  • Xianchuan Chen
  • Huahong Shi
  • Ze Luo
  • Chenxi Wu

Detail(s)

Original languageEnglish
Pages (from-to)899-906
Journal / PublicationEnvironmental Pollution
Volume235
Online published21 Feb 2018
Publication statusPublished - Apr 2018

Abstract

Microplastic pollution was studied in China's largest inland lake – Qinghai Lake in this work. Microplastics were detected with abundance varies from 0.05 × 105 to 7.58 × 105 items km−2 in the lake surface water, 0.03 × 105 to 0.31 × 105 items km−2 in the inflowing rivers, 50 to 1292 items m−2 in the lakeshore sediment, and 2 to 15 items per individual in the fish samples, respectively. Small microplastics (0.1–0.5 mm) dominated in the lake surface water while large microplastics (1–5 mm) are more abundant in the river samples. Microplastics were predominantly in sheet and fiber shapes in the lake and river water samples but were more diverse in the lakeshore sediment samples. Polymer types of microplastics were mainly polyethylene (PE) and polypropylene (PP) as identified using Raman Spectroscopy. Spatially, microplastic abundance was the highest in the central part of the lake, likely due to the transport of lake current. Based on the higher abundance of microplastics near the tourist access points, plastic wastes from tourism are considered as an important source of microplastics in Qinghai Lake. As an important area for wildlife conservation, better waste management practice should be implemented, and waste disposal and recycling infrastructures should be improved for the protection of Qinghai Lake.

Research Area(s)

  • Lake current, Plastic debris, Remote lake, Tourism, Weathering

Citation Format(s)

Sources and distribution of microplastics in China's largest inland lake – Qinghai Lake. / Xiong, Xiong; Zhang, Kai; Chen, Xianchuan; Shi, Huahong; Luo, Ze; Wu, Chenxi.

In: Environmental Pollution, Vol. 235, 04.2018, p. 899-906.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal