Sherri A. Mason's research while affiliated with Pennsylvania State University and other places

Publications (23)

Article
Microplastic contamination in reservoirs is receiving increasing attention worldwide. However, a holistic understanding of the occurrence, drivers, and potential risks of microplastics in reservoirs is lacking. Building on a systematic review and meta-analysis of 30 existing publications, we construct a global microplastic dataset consisting of 440...
Article
Full-text available
A total of 8218 pelagic microplastic samples from the world’s oceans were synthesized to create a dataset composed of raw, calibrated, processed, and gridded data which are made available to the public. The raw microplastic abundance data were obtained by different research projects using surface net tows or continuous seawater intake. Fibrous micr...
Article
In 2014, 94 paired neuston net samples (0.5 mm mesh) were collected from the surface waters of Lake Superior. These samples comprise the most comprehensive surface water survey for microplastics of any of the Great Lakes to date, and the first to employ double net trawls. Microplastic abundance estimates showed wide variability, ranging between 400...
Article
Full-text available
The spatial distribution, concentration, particle size, and polymer compositions of microplastics in Lake Michigan and Lake Erie sediment were investigated. Fibers/lines were the most abundant of the five particle types characterized. Microplastic particles were observed in all samples with mean concentrations for particles greater than 0.355 mm of...
Article
During 2012 to 2014 five expeditions collected surface water samples for plastic pollution analysis representing the first data within Lake Ontario and the first multi-year dataset for Lake Erie. Lake Ontario had the highest abundances of any Great Lake to date with an average of over 230,000 particles/km². Though having a considerable smaller aver...
Article
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Microplastic contamination was studied along a freshwater continuum from inland streams to the Milwaukee River estuary to Lake Michigan and vertically from the water surface, water subsurface, and sediment. Microplastics were detected in all 96 water samples and 9 sediment samples collected. Results indicated a gradient of polymer presence with dep...
Technical Report
Full-text available
This report was the product of a GESAMP Working Group, consisting of 15 independent experts based in North America, South America, Asia, Africa, Europe and Australasia. The report was edited by Kershaw, Turra and Galgani. It with provides recommendations to encourage a more harmonised approach to the monitoring and assessment of plastic litter, inc...
Article
Full-text available
Eleven globally sourced brands of bottled water, purchased in 19 locations in nine different countries, were tested for microplastic contamination using Nile Red tagging. Of the 259 total bottles processed, 93% showed some sign of microplastic contamination. After accounting for possible background (lab) contamination, an average of 10.4 microplast...
Article
Full-text available
Microplastic is a contaminant of concern worldwide. Rivers are implicated as major pathways of microplastic transport to marine and lake ecosystems, and microplastic ingestion by freshwater biota is a risk associated with microplastic contamination, but there is little research on microplastic ecology within freshwater ecosystems. Microplastic upta...
Article
Full-text available
Plastic pollution has been well documented in natural environments, including the open waters and sediments within lakes and rivers, the open ocean and even the air, but less attention has been paid to synthetic polymers in human consumables. Since multiple toxicity studies indicate risks to human health when plastic particles are ingested, more ne...
Article
Full-text available
Microplastics (MPs; <5 mm) in aquatic environments are an emerging contaminant of concern due to their possible ecological and biological consequences. This study addresses that MP quantification and morphology to assess the abundance, distribution, and polymer types in littoral surface sediments of the Persian Gulf were performed. A two-step metho...
Technical Report
Full-text available
Plastic pollution has been well documented in natural environments, including the open waters and sediments within lakes and rivers, the open ocean and even the air, but less attention has been paid to synthetic polymers in human consumables, such as fish, table salt, and beverages. Here we report a global survey of tap water from six regions on fi...
Article
Microplastics are ubiquitous pollutants in aquatic habitats and commonly found in the gut contents of fish yet relatively little is known about the retention of these particles by fish. In this study, goldfish were fed a commercial fish food pellet amended with 50 particles of one of two microplastics types, microbeads and microfibers. Microbeads w...
Article
Full-text available
Plastic debris is a growing contaminant of concern in freshwater environments, yet sources, transport, and fate remain unclear. This study characterized the quantity and morphology of floating micro- and macroplastics in 29 Great Lakes tributaries in six states under different land covers, wastewater effluent contributions, population densities, an...
Article
Full-text available
Municipal wastewater effluent has been proposed as one pathway for microplastics to enter the aquatic environment. Here we present a broad study of municipal wastewater treatment plant effluent as a pathway for microplastic pollution to enter receiving waters. A total of 90 samples were analyzed from 17 different facilities across the United States...
Article
During the summer of 2013, a total of 59 surface water samples were collected across Lake Michigan making it the best surveyed for pelagic plastics of all the Laurentian Great Lakes. Consistent with other studies within the Great Lakes, Mantra-trawl samples were dominated by particles less than 1 mm in size. Enumeration of collected plastics under...
Article
Recent research has documented microplastic particles (< 5 mm in diameter) in ocean habitats worldwide and in the Laurentian Great Lakes. Microplastic interacts with biota in these habitats, including microorganisms, raising concerns about its ecological effects. Rivers may transport microplastic to marine habitats and the Great Lakes, but data on...
Data
Full-text available
Despite the large and growing literature on microplastics in the ocean, little information exists on microplastics in freshwater systems. This study is the first to evaluate the abundance, distribution, and composition of pelagic microplastic pollution in a large, remote, mountain lake. We quantified pelagic microplastics and shoreline anthropogeni...
Article
Neuston samples were collected at 21 stations during an ∼700 nautical mile (∼1300 km) expedition in July 2012 in the Laurentian Great Lakes of the United States using a 333 μm mesh manta trawl and analyzed for plastic debris. Although the average abundance was approximately 43,000 microplastic particles/km2, station 20, downstream from two major ci...

Citations

... Small-sized microplastics (< 1 mm) usually account for a high proportion (Guo et al., 2021). In this study, the proportions of 0.1-0.5 mm microplastics in the stations (5, 8, 9, and 12) close to the nuclear plant were above 80 %, while the far stations 4 and 17 had comparatively low levels of 0.1-0.5 mm microplastics (<66 %). ...
... Jambeck et al. (2015) estimated that 275 million metric tons of plastic waste were generated in 2010 from 192 coastal countries, with 4.8 to 12.7 million metric tons entering the ocean. Isobe et al. (2021) analyzed both published and unpublished microplastics abundance data between 2000 and 2019, revealing a total of 24.4 trillion plastic particles (8.2 x 10 4 57.8 x 10 4 tons) in the world's upper oceans. Past investigations have reported impacts on marine birds Thiel et al., 2018), mammals (Campani et al., 2013;Panti et al., 2019), fishes (Romeo et al., 2015;Miranda and de Carvalho-Souza, 2016), bivalves (Rochman et al., 2015;Li et al., 2020) and planktonic organisms (Lin, 2016), with the potential transfer of microplastics through the planktonic food web (Setälä et al., 2014). ...
... These tiny plastics invisible to the naked eyes do not decompose but leach out to soil, water bodies and the ocean. They have been found in aquatic habitats of inland water, open-ocean and enclosed seas, beaches and surface water (Lenaker et al., 2019(Lenaker et al., , 2021Mason et al., 2020;Minor et al., 2020;Cox et al., 2021) as well as beet, tap water and sea salt (Kosuth et al., 2018). They migrate across larger distances, due to smaller size, and accumulate in natural habitats with adverse impact on biota. ...
... Indeed, microplastic has now been detected in sediment (e.g. He et al. 2020;Horton et al. 2017a;Lenaker et al. 2020;Rodrigues et al. 2018), in water (e.g. Deng et al. 2020;Earn et al. 2021;Nan et al. 2020;Simmerman and Coleman Wasik 2020), and in biota, including fish, birds, and invertebrates (e.g. ...
... These steady-state models consider removal via settling and/or degradation, and in the case of van Wijnen et al. (2019) also fragmentation. Several 2D-models have been made that describe microplastic concentrations and processes in lakes (Cable et al., 2017;Hoffman and Hittinger, 2017;Mason et al., 2020). Some of these models include beaching as a removal process (Hoffman and Hittinger, 2017;Mason et al., 2020). ...
... Reineccius et al. (2020) investigated microfibers in the North Atlantic Subtropical Gyre and calculated a total mass flux of 9800 t descending through the water column per year. Lenaker et al. (2019) demonstrated polymer partitioning between surface and subsurface water and surficial sediment due to density, based on sampling along a freshwater continuum (Milwaukee River to Lake Michigan). ...
... Jaring manta dapat mempertahankan kedalaman perendaman yang konstan di permukaan laut. Jika tinggi gelombang melebihi tingkat tertentu, jaring cenderung melompat di permukaan air (Michida, Chavanich, Cózar, & et al., 2019). Penggunaan jaring manta (gambar dibentangkan dari buritan secara berpasangan, selama 20 menit, dengan kecepatan rata-rata 2 knot untuk mengurangi pengaruh pergerakan kapal di area pengambilan sampel (Carretero et al., 2017). ...
... The litter was defined as numbers of items/m 2 and weights of items (gr/m 2 ). The AML survey and collection emphasized and included all non-organic discarded materials made of plastic, e.g., bags, bottles, cups, packaging, sheets, and straws [27,28,29,30,31]. The selection of plastic as AML samples was based on the consideration that plastic has a long degradation time. ...
... Untuk memperhitungkan kemungkinan kontaminasi laboratorium yang dapat berasal dari deposisi atmosfer, bahan kimia yang digunakan, barang pecah belah atau aspek lain dari lingkungan pengujian, blanko lab yang mengandung air deionisasi (digunakan untuk mencuci semua barang pecah belah) atau aseton (digunakan untuk menyiapkan larutan Nil Red) diproses dengan cara yang identik dengan sampel itu sendiri. Kepadatan partikel dalam sampel dikurangi berdasarkan kepadatan rata-rata di semua blanko lab (Mason, Welch, & Neratko, 2018). ...
... As a result, aquatic ecosystems have become littered with plastic garbage (Foekema et al., 2013). Many researchers pay special interests in microplastics (MPs), which are smaller than 5 mm in size (Syberg et al., 2015;Lehtiniemi et al., 2018), and they have revealed MPs in surface water, sediment, fish, and shellfish in freshwater around the world (McNeish et al., 2018;Eo et al., 2019;Irfan et al., 2020;Napper et al., 2021;Tsering et al., 2021;Parvin et al., 2021). MPs are categorized as either primary or secondary microplastics based on their source. ...