Assessment of seasonal variability of input of microplastics from the Northern Dvina River to the Arctic Ocean

Zhdanov, Igor; Lokhov, A. S.; Belesov, A. V.; Kozhevnikov, A. Yu.; Pakhomova, Svetlana; Berezina, Anfisa; Frolova, Natalia; Котова, Е. И.; Leshchev, A. V.; Wang, Xinhong; Zavialov, Peter

doi:10.1016/j.marpolbul.2022.113370

Cited by 37 publications

(18 citation statements)

References 22 publications

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“…When compared with worldwide river systems (Table 4), microplastic levels in the surface water of the Tien River was approXimately that same as that of the Qing River, China (170-260 items m -3 ; Wang et al, 2020), and the Seine River, France (3-106 items m -3 ; Dris et al, 2015). Further, it was higher than that of the Chao Phraya River Estuary, Thailand (48 ± 8 items m -3 ; Ta and Babel, 2020), 29 assorted rivers in Japan (1.6 ± 2.3 items m -3 , Kataoka et al, 2019), and Northern Dvina River in Russia (0.004-0.01 items m -3 , Zhdanov et al, 2022), and lower than that of the Orange-Vaal River system in South Africa (0.23 ± 0.27 items L -1 , Weideman et al, 2019), and the Thames river in the United Kingdom (87,750 items m -3 , DevereuX et al, 2022). Sediment in the Tien River also presented higher microplastic levels than that in the Ciwalengke River, Indonesia (1.4-3.5 × 10 -3 items g -1 d.w.; Alam et al, 2019), the Chao Praya River, Thailand (0.04 items g -1 d.w.; Ta and Babel, 2020), the Barrow River in Iceland (172.5 ± 116 items kg -1 w.w., Murphy et al, 2022), and the Qin River in Beibu Gulf, China (0-0.1 items g -1 d.w.; Zhang et al, 2020).…”

Section: Microplastic Colour Partitionmentioning

confidence: 85%

Baseline concentration of microplastics in surface water and sediment of the northern branches of the Mekong River Delta, Vietnam

Kieu-Le

Thuong

Truong

et al. 2023

Marine Pollution Bulletin

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Section: Microplastic Colour Partitionmentioning

confidence: 85%

Baseline concentration of microplastics in surface water and sediment of the northern branches of the Mekong River Delta, Vietnam

Kieu-Le

Thuong

Truong

et al. 2023

Marine Pollution Bulletin

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“…Additionally, the average abundance of microplastics in all water samples collected during the wet season (10.67 ± 6.45 particles/L) was significantly higher than in samples collected during the dry season (15.33 ± 6.79 particles/L) (p < 0.05). Such seasonal variations in microplastic pollution have also been observed in several studies [54,58,59], and this can be attributed to the combined effect of regional precipitation [59]. During the wet season, more plastic debris and microplastics are discharged into water bodies with heavy rainfall and excessive freshwater inflows, leading to more severe microplastic contamination [60].…”

Section: Microplastic Abundance In Watersmentioning

confidence: 56%

Microplastic Transportation in a Typical Drinking Water Supply: From Raw Water to Household Water

Sun,

Zhu,

et al. 2024

Water

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Microplastics in drinking water have attracted increasing global concerns due to their potential adverse impacts on human health. However, there needs to be more knowledge of the occurrence and distribution of microplastics in drinking water systems from water sources to household tap water. Herein, laser direct infrared spectroscopy is used to investigate the occurrence of microplastics in a typical drinking water plant with different water sources. Microplastic information is further used to understand microplastic fates during drinking water supply, including microplastic abundance, size, shape, and polymer type. Overall, the microplastic abundance in treated water ranges from 12.00 to 25.33 particles/L, higher than those in raw water (RW; 2.33–17.33 particles/L) and household water (HW; 8.00–19.67 particles/L), which shows that microplastics are not removed from RW. The main polymers in these microplastics are polyethylene terephthalate, polyvinyl chloride, polyethylene, and polypropylene. At the same time, the main microplastic shapes are fragments and fibers. Small-sized microplastics of 20–100 μm account for up to 76.74% and 79.30% of microplastics during the dry and wet seasons, respectively. Additionally, more microplastics are detected in RW from rivers than those from reservoirs and lakes, and the microplastic abundance in the wet season is higher than that in the dry season. As expected, the potential ecological risk of microplastics in all waters is the I level, which is the lowest level. Most importantly, the annual microplastic intake of an adult via drinking water is 5063–18,301 microplastics, less than that reported in previous studies. These results provide valuable data on the fates of microplastics in drinking water supply systems from water sources to HW and promote authorities to update the treatment technologies for drinking water in the future to remove microplastics efficiently.

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“…In the Chukchi and Beaufort Sea, microplastic concentrations in seawater may correspond to the degree of offshore sea ice melt and river runoff [ 18 , 31 ], but further studies are required to determine the microplastic source contributions to microplastic concentration [ 10 ]. As of now, contrasting results have emerged on MP in the Chukchi Sea.…”

Section: Discussionmentioning

confidence: 99%

“…This current facilitates the seasonal movement of water from Barrow Canyon ( Figure 1 ) both westward as the Chukchi Slope Current, and eastward into the Beaufort Sea as the Beaufort Shelf break jet [ 26 , 28 , 29 , 30 ]. Water at the surface that is not of Pacific origin can typically be attributed to the melting of sea ice and the inflow of river water [ 18 , 26 , 31 ]. The Canadian Arctic Archipelago (CAA) plays a significant role in the transport of freshwater between the Arctic Ocean and the Atlantic Ocean [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

Microplastics Distribution within Western Arctic Seawater and Sea Ice

D’Angelo,

Trenholm,

Loose

et al. 2023

Toxics

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Microplastic pollution has emerged as a global environmental concern, exhibiting wide distribution within marine ecosystems, including the Arctic Ocean. Limited Arctic microplastic data exist from beached plastics, seabed sediments, floating plastics, and sea ice. However, no studies have examined microplastics in the sea ice of the Canadian Arctic Archipelago and Tallurutiup Imanga National Marine Conservation Area, and few have explored Arctic marginal seas’ water column. The majority of the microplastic data originates from the Eurasian Arctic, with limited data available from other regions of the Arctic Ocean. This study presents data from two distinct campaigns in the Canadian Arctic Archipelago and Western Arctic marginal seas in 2019 and 2020. These campaigns involved sampling from different regions and matrices, making direct comparisons inappropriate. The study’s primary objective is to provide insights into the spatial and vertical distribution of microplastics. The results reveal elevated microplastic concentrations within the upper 50 m of the water column and significant accumulation in the sea ice, providing evidence to support the designation of sea ice as a microplastic sink. Surface seawater exhibits a gradient of microplastic counts, decreasing from the Chukchi Sea towards the Beaufort Sea. Polyvinyl chloride polymer (~60%) dominated microplastic composition in both sea ice and seawater. This study highlights the need for further investigations in this region to enhance our understanding of microplastic sources, distribution, and transport.

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Assessment of seasonal variability of input of microplastics from the Northern Dvina River to the Arctic Ocean

Cited by 37 publications

References 22 publications

Baseline concentration of microplastics in surface water and sediment of the northern branches of the Mekong River Delta, Vietnam

Baseline concentration of microplastics in surface water and sediment of the northern branches of the Mekong River Delta, Vietnam

Microplastic Transportation in a Typical Drinking Water Supply: From Raw Water to Household Water

Microplastics Distribution within Western Arctic Seawater and Sea Ice

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