Characteristics and spatial distribution of microplastics in the lower Ganga River water and sediment

被引：122

作者：

Singh, Nisha ^{[1
]}

Mondal, Arijit ^{[1
]}

Bagri, Amarjeet ^{[1
]}

Tiwari, Ekta ^{[1
]}

Khandelwal, Nitin ^{[1
]}

Monikh, Fazel Abdolahpur ^{[3
]}

Darbha, Gopala Krishna ^{[1
,2
]}

机构：

[1] Indian Inst Sci Educ & Res Kolkata, Dept Earth Sci, Environm Nanosci Lab, Mohanpur 741246, W Bengal, India

[2] Indian Inst Sci Educ & Res Kolkata, Ctr Climate & Environm Studies, Mohanpur 741246, W Bengal, India

[3] Univ Eastern Finland, Dept Environm & Biol Sci, POB 111, FI-80101 Joensuu, Finland

来源：

MARINE POLLUTION BULLETIN | 2021年 / 163卷

关键词：

Freshwater; Abundance; Occurrence; India; Plastic pollution; SOUTHEAST COAST; URBAN RIVER; ACCUMULATION; ENVIRONMENTS; BEACHES; DEBRIS; ISLAND; IDENTIFICATION; TRANSPORT; POLLUTION;

D O I：

10.1016/j.marpolbul.2020.111960

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Although India is one of the major plastic-waste-generating countries, few studies have been conducted on microplastics (MPs) in freshwater systems that are key contributors to oceans. The current study explores MPs in sediments and water that were collected at five major cities across the Ganga River. MPs number and mass density range in sediment were found to be 17 to 36 items/kg dry weight (d.w.) and 10 to 45 mg/kg d.w. of sediments, respectively, while in the water sample, they were 380 to 684 items/1000 m(3) and 143 to 340 mg/1000 m(3), respectively. Overall, white color and film-shaped MPs were the major contributors in all samples. MPs of 2.5-5 mm size contributed to a greater number and mass as compared to other fractions. Polyethylene was found to be a widely distributed plastic-type reflecting its high usability.

引用

页数：8

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