Since the mass production of plastic in 1940, contamination of marine environment by plastics particularly micro plastics has been a growing problem. Micro plastics are little plastic particles, fibers and granules which have been defined in different sizes such as diameter less than 10, 5, 2 and 1 mm. The micro plastics that are made in microscopic size and are used in cleaner and cosmetic materials, are called primary micro plastics and secondary micro plastics are derived from larger particles. Micro plastics are directly transmitted to rivers and then sea via wastewater influent or leachates from refuse sites. Micro plastics are found throughout the water column and due to their small size, micro plastics are considered bioavailable for organisms. Their composition and relatively large surface area make them prone for adhering waterborne organic pollutants such as PAHs, PCBs and DDT. Micro plastics consumption by marine organisms have been shown by environmental and laboratory studies. Although adverse health effects via micro plastics are not obvious alone, but the transition of chemical materials from microplastics to organisms throughout the food-chain is a significant concern. In this article, micro plastics properties, micro plastics production resources, their entering effects on environment have been considered.

In this research the impact of micro cellulose particles length, and coupling agent (MAPP) on the mechanical and thermal properties of Nano/ wood plastics composites were investigated. The results showed that mechanical properties of the composites made with 50 micron micro cellulose particles and 5% of MAPP were significantly different to those of the lower length (20 micron) and 2.5% of MAPP. Addition of MAPP enhanced the mechanical and thermal properties of the blends, due to the improvement of interface bond between the filler and matrix of Nano/ wood plastics composites. The significant improvements in mechanical properties of the blended composites made with MAPP and NC were further supported by SEM and TEM micrographs. Nano/ clay particles distribution and thermo gravimetric analysis (TGA) indicated that the addition of 5% MAPP and the longer micro cellulose particles remarkably increased the thermal stability of the blends compared to other treatments of Nano/ wood plastics composites.

Background and Aim: Nowadays the production of plastic materials has dramatically increased with the growth of population and the development of industry in the world. Micro-plastics are released into the environment by the decomposition of plastic materials. The World Health Organization (WHO) has called these particles emerging pollutants due to their highly durable and bioaccumulative nature. The present study reviews the characteristics, health hazards, values, as well as the efficiency of different methods of eliminating micro-plastics in aquatic environments. Materials and Methods: In this literature review, the keywords Micro-plastic, Water-drinking, Pollution, and Removal were searched and studied in articles from 2000 to 2020 published by Pubmed, Google scholar, Science direct, and Scopus. Results: Studies showed that in addition to the food chain, this pollutant is also present in bottled drinking water, which can affect human health, the environment and living organisms in aquatic environments. Conclusion: Results of this study showed that existent microplastic in the food chain and drinking water is due to their presence in the environment. Therefore, they can affect human health, the environment and other organisms that live in aquatic environments. Article type: A Literature review.

In this research, Micro Plastics were separated using a combination of an PSF/MIL-100(Fe(, created by layering the polymers such as Poly sulfone onto the organometallic compound. The effect of MIL-100 (Fe) incorporation on PSF matrix was studied, including the porosity, pore size, morphology, permeability, separation performance.In this regard, thirty-two experiments were designed and implemented using the surface response method and central design software. More recently, polymers such as poly sulfone (PSF), polyamide, poly (vinylidene fluoride), and polyether sulfone have become the leading raw materials for the fabrication of membranes. Factors influencing absorption include the amount of absorbent material, the concentration of MPs, and the duration of exposure, each assessed at three different levels. In each experiment, a quantity of absorbent material was placed in ten milliliters of water mixed with Micro Plastics, and the amount of MPs removal was measured. MOFs on other substrates such as aerogels or foams. Meanwhile, there is a need for more research to investigate the long-term stability of MOFs in aqueous environments and developing efficient regeneration methods for their repeated use. The prepared absorbent had a specific surface area of 1000 grams per square meter. Instrumental methods were used to investigate the physical properties of the prepared nanoparticles. The test conditions included contact times of 1-5 minutes, absorbent amounts ranging from 1-25 mg, MPs concentrations of 1-25 mg/L. The 100% removal of MPs was achieved using 10 mg of nano absorbent for a contact time of 5 minutes. In this research, The fabricated PSF/MIL-100(Fe) composite membrane displayed excellent rejection of MPs(PVC & PE) .

Background and Objectives The widespread prevalence of microplastic contamination in the environment has raised concerns regarding its potential effects on human and animal health. The primary objective of this study was to investigate the effects of varying doses (0.01, 0.1, and 1 mg/kg) of polystyrene microplastics on myocardial tissue damage, oxidative stress, and inflammation in miceSubjects and Methods This randomized experimental trial included 36 male mice divided into four groups: a control group and three experimental groups receiving microplastic doses of 0.01, 0.1, and 1 mg/kg. After 42 days, heart tissue and blood serum samples were collected and subjected to histopathological, biochemical, and molecular analyses. Statistical analysis of the data was performed using one-way ANOVA and Tukey’s post-hoc test in SPSS 21, and the results were reported as mean ± standard deviation (P<0.05). Graphs were generated using Excel 2017.Results Microplastics induced structural alterations in the heart tissue, with the severity correlating to the dose. High doses (1 mg/kg) led to severe degradation of muscle fibers and extensive fibrosis. In contrast, low doses (0.01 mg/kg) caused only mild damage. Evidence of increased oxidative stress was also clear: total serum antioxidant capacity was reduced at moderate and high doses, and malondialdehyde (MDA) levels were significantly elevated (P<0.05). Furthermore, high doses significantly increased TNF-alpha gene expression (P<0.05), indicating activated inflammatory responses triggered by microplastics.Conclusion Polystyrene microplastics can have negative effects on cardiovascular health, including increased oxidative stress and inflammation. These findings underscore the need for further research to better understand the health risks of micro plastics.