Is the microplastic selective according to the habitat? Records in amphioxus sands, Mäerl bed habitats and Cymodocea nodosa habitats

Renzi, Monia; Blašković, Andrea; Fastelli, Paolo; Marcelli, Manlio; Guerranti, Cristiana; Cannas, Susanna; Barone, Lorenzo; Massara, Francesca

doi:10.1016/j.marpolbul.2018.03.019

Cited by 53 publications

(26 citation statements)

References 28 publications

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“…If the mentioned systemic differences were resolved an accurate comparison of the (normalised) MP contamination level between sites could be made. An additional common constraint of studies that reported the absence of a relationship between MP and sediments, is a missing coverage of large variability ranges of sediment grain sizes 17,18 or complete exclusion of the fine fraction 17 , partly owed to a low sample sizes. A sample coverage spanning a sufficient range of grain sizes, representative for the region of interest, is thus essential to determine the MP contamination level in sediments.…”

Section: Resultsmentioning

confidence: 99%

Tracing microplastics in aquatic environments based on sediment analogies

Enders

Käppler

Biniasch

et al. 2019

Sci Rep

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Microplastics (MP) data collection from the aquatic environment is a challenging endeavour that sets apparent limitations to regional and global MP quantification. Expensive data collection causes small sample sizes and oftentimes existing data sets are compared without accounting for natural variability due to hydrodynamic processes governing the distribution of particles. In Warnow estuarine sediments (Germany) we found significant correlations between high-density polymer size fractions (≥500 µm) and sediment grain size. Among potential predictor variables (source and environmental terms) sediment grain size was the critical proxy for MP abundance. The MP sediment relationship can be explained by the force necessary to start particle transport: at the same level of fluid motion, transported sediment grains and MP particles are offset in size by one to two orders of magnitude. Determining grain-size corrected MP abundances by fractionated granulometric normalisation is recommended as a basis for future MP projections and identification of sinks and sources.

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Section: Resultsmentioning

confidence: 99%

Tracing microplastics in aquatic environments based on sediment analogies

Enders

Käppler

Biniasch

et al. 2019

Sci Rep

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“…The same considerations, still relative to the Adriatic area, are valid for the Livenza and Lemene rivers, Adige, Reno, Lamone, Fiumi Uniti, Bevano, and Pescara, although not directly monitored, of which the order of magnitude of the contribution of MPs can be deduced from the values found in the sediments of marine areas subject to their influence [42][43][44][45]. In particular, very high levels of MPs were found in the sampling stations located between the mouth of the Livenza and Lemene rivers (700 items/kg dry sediment, [44]) and between the mouth of the United Rivers and the Bevano river, (1512 ± 187 items/kg dry sediment [43]. Other Mediterranean areas affected by rivers have been monitored for the presence of MPs, such as stretches of coastline in Turkey [46] and Lebanon [47].…”

Section: Discussionmentioning

confidence: 79%

“…Indirectly, however, the data on the presence of MPs reported for sediments collected in the Gulf of Trieste (133.3 items/kg dry sediment shoreline and 155.6 items/kg dry sediment infralittoral) provide an indication of the importance of the contribution of these rivers [41]. The same considerations, still relative to the Adriatic area, are valid for the Livenza and Lemene rivers, Adige, Reno, Lamone, Fiumi Uniti, Bevano, and Pescara, although not directly monitored, of which the order of magnitude of the contribution of MPs can be deduced from the values found in the sediments of marine areas subject to their influence [42][43][44][45]. In particular, very high levels of MPs were found in the sampling stations located between the mouth of the Livenza and Lemene rivers (700 items/kg dry sediment, [44]) and between the mouth of the United Rivers and the Bevano river, (1512 ± 187 items/kg dry sediment [43].…”

Section: Discussionmentioning

confidence: 80%

Knowledge about Microplastic in Mediterranean Tributary River Ecosystems: Lack of Data and Research Needs on Such a Crucial Marine Pollution Source

Guerranti

Perra

Martellini

et al. 2020

JMSE

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Plastic debris occurring in freshwater environments, which can either come from the surrounding terrestrial areas or transported from upstream, has been identified as one of the main sources and routes of plastic pollution in marine systems. The ocean is the final destination of land- based microplastic sources, but compared to marine environments, the occurrence and effects of microplastics in freshwater ecosystems remain largely unknown. A thorough examination of scientific literature on abundance, distribution patterns, and characteristics of microplastics in freshwater environments in Mediterranean tributary rivers has shown a substantial lack of information and the need to apply adequate and uniform measurement methods.

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“…Recently Frias and Nash [6] defined microplastics as "any synthetic solid particle or polymeric matrix, with regular or irregular shape and with size ranging from 1 µm to 5 mm, of either primary or secondary manufacturing origin, which are insoluble in water". To date microplastics have been detected in water [7,8], and sediments [9] coming from different environments worldwide: sea surface and water column [10], lakes and rivers [4,11], coastal areas [12], harbours [13], marine protected areas [14], deep oceans [15], polar ecosystems [16], and coral reefs [17].…”

Section: Introductionmentioning

confidence: 99%

Microparticles in Table Salt: Levels and Chemical Composition of the Smallest Dimensional Fraction

Renzi¹,

Grazioli²,

Bertacchini³

et al. 2019

JMSE

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This study evaluates the chemical composition of microplastic materials (MPs) and non-synthetic particles in different table salts of marine origin by the µFT-IR technique. This research focuses on the microparticles fraction within 10–150 µm of size. Eleven commercial trademarks coming from Italy (IT = 6) and Croatia (CRO = 5) were grouped in two different cost ranges, cheap (n = 5) and expensive (n = 6) and were analysed in replicates (n = 3). Levels and chemical composition of microparticles measured in commercial products were correlated on a statistical basis to some factors of variability of potential scientific interest (geographical origin of marine salt, cost of commercial products, etc.). Results of analyses performed on the tested size fraction of microparticles (10–150 µm) evidence that: (i) levels of MPs are within 0.17–0.32 items/g (IT) and 0.07–0.20 items/g (CRO); (ii) non-synthetic particles detected are mostly made by fibres made of cellulose acetate; (iii) Nations show a different chemical composition of MPs recovered in analysed trademarks (PET and PVC from Italy; PA, PP, and nylon from Croatia); (iv) the annual amount ingested by humans from marine salt consumption ranges between 131.4–372.3 items/y (CRO) and 306.6–580.35 items/y (IT) considering a dose of 5 g of salt per day; (v) statistics performed on factors of interest evidenced that the geographical origin of marine salt do not affect neither levels nor chemical composition of MPs in tested trademarks; while slight correlations are recorded with non-synthetic particles. Further studies are needed to better explore on statistical basis if both levels and chemical composition of MPs in table salts of marine origin can be used or not as good indicators of marine pollution.

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Is the microplastic selective according to the habitat? Records in amphioxus sands, Mäerl bed habitats and Cymodocea nodosa habitats

Cited by 53 publications

References 28 publications

Tracing microplastics in aquatic environments based on sediment analogies

Tracing microplastics in aquatic environments based on sediment analogies

Knowledge about Microplastic in Mediterranean Tributary River Ecosystems: Lack of Data and Research Needs on Such a Crucial Marine Pollution Source

Microparticles in Table Salt: Levels and Chemical Composition of the Smallest Dimensional Fraction

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