Microplastic sampling techniques in freshwaters and sediments: a review

Razeghi, Nastaran; Hamidian, Amir Hossein; Wu, Chenxi; Zhang, Yu; Yang, Min

doi:10.1007/s10311-021-01227-6

Cited by 79 publications

(24 citation statements)

References 196 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Currently, microplastics are one of the most important threats to the environment. These pollutants are present in all water ecosystems of rivers, seas, and oceans (Crew et al 2020;Fan et al 2021a;Liu et al 2021;Razeghi et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Microplastic pollution in sediments in the urban section of the Qara Su River, Iran

et al. 2022

View full text Add to dashboard Cite

Microplastic pollution is an emerging threat to marine environments with potential environmental, social, economic, and health consequences and has become a major global environmental issue. The objective of the present study was to evaluate microplastic contamination in the ecosystem of the Qara Su River in Ardabil, Iran. Fifteen sampling sites along the Qara Su River in the Ardabil urban area were selected to collect sediment samples. The abundance and morphological characteristics of microplastics were determined by counting using a digital stereomicroscope. Micro-Fourier transform-infrared spectroscopy (μ-FTIR) analysis was used to identify polymer type of the microplastics. In this study, the frequency and distribution of microplastics (< 5 mm) in the sediment of Qara Su River were investigated as one of the sources containing microplastics. Sediment samples were collected from five different sites (Karkarq, Sar band, Anzab Sulfa, Dolat abad, and Samian) from September to March 2020. For microplastic examination in sediment, the amount (approximately 1000 g of fresh sediment from each site) was sampled from 15 sites. Fiber microplastics (53%) and fragments (33%) microplastics were predominant. It has shown the abundance and heterogeneity of space. In this study, the highest amount of microplastics detected in sediment samples was related to the size of less than 5000 µm (92%). The frequency of microplastics below 5000 µm in sediment was attributed to the low capacity of existing processes in Ardabil wastewater treatment plant. The abundance of microplastics shows significant differences between sampling sites. The Qara Su River along the city of Ardabil, like many other rivers, is contaminated with microplastics. This study was the first study conducted for evaluation of the sediment environment in terms of the microplastic pollution of Qara Su River in Ardabil. Considering the amount of microplastics in sediments, further research is required to estimate the amount of microplastics released by Ardabil wastewater treatment plants and industrial town wastewater, and other possible sources of emission and to evaluate their contribution to microplastic pollution in water, sediment, and soil. This study provided a framework for future studies of microplastics pollution in the sediment of urban areas around the Qara Su River in Iran.

show abstract

Section: Introductionmentioning

confidence: 99%

Microplastic pollution in sediments in the urban section of the Qara Su River, Iran

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The sampling methods vary with the compartment under analysis, like surface water or water column and the litter's size distribution in the water (GESAMP 2019 ). For the separation of microplastic from surface water, the main sampling tool is manta trawls, whereas spatula, scoop, trowel and shovel are the most frequently used sampling tools for microplastic separation from sediments (Razeghi et al 2021 ). Moreover, the sample collection location is based on the problem under investigation and the platform for monitoring.…”

Section: Sample Collection Process and Characterization In The Environmentmentioning

confidence: 99%

Occurrence, toxicity and remediation of polyethylene terephthalate plastics. A review

et al. 2022

View full text Add to dashboard Cite

Polyethylene terephthalate is a common plastic in many products such as viscose rayon for clothing, and packaging material in the food and beverage industries. Polyethylene terephthalate has beneficial properties such as light weight, high tensile strength, transparency and gas barrier. Nonetheless, there is actually increasing concern about plastic pollution and toxicity. Here we review the properties, occurrence, toxicity, remediation and analysis of polyethylene terephthalate as macroplastic, mesoplastic, microplastic and nanoplastic. Polyethylene terephthalate occurs in groundwater, drinking water, soils and sediments. Plastic uptake by humans induces diseases such as reducing migration and proliferation of human mesenchymal stem cells of bone marrow and endothelial progenitor cells. Polyethylene terephthalate can be degraded by physical, chemical and biological methods.

show abstract

“…For instance, manta trawls are the main sampling tool for microplastic separation from surface water, whereas shovel, trowel, spade, scoop and spatula are commonly used to extract microplastics from sediments. And Van Veen grab is common for deep sediment sampling (Razeghi et al 2021b). In the density separation method, sodium chloride is the most prevalent salt used in extracting microplastics from freshwater.…”

Section: Sampling Of Microplasticsmentioning

confidence: 99%

Analytical methods for microplastics in the environment: a review

Huang

Wang

2022

Environ Chem Lett

View full text Add to dashboard Cite

Microplastic pollution is a recently discovered threat to ecosystems requiring the development of new analytical methods. Here, we review classical and advanced methods for microplastic analysis. Methods include visual analysis, laser diffraction particle, dynamic light scattering, scanning electron microscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy, thermal analysis, mass spectrometry, aptamer and in vitro selection, and flow cytometry.

show abstract

Microplastic sampling techniques in freshwaters and sediments: a review

Cited by 79 publications

References 196 publications

Microplastic pollution in sediments in the urban section of the Qara Su River, Iran

Microplastic pollution in sediments in the urban section of the Qara Su River, Iran

Occurrence, toxicity and remediation of polyethylene terephthalate plastics. A review

Analytical methods for microplastics in the environment: a review

Contact Info

Product

Resources

About