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Microplastics
Microplastics
are small plastic particles in the environment. While there is some contention over their size, the U.S. National Oceanic & Atmospheric Administration classifies microplastics as less than 5 mm in diameter.[1] They come from a variety of sources, including cosmetics, clothing, and industrial processes. Two classifications of microplastics currently exist: primary microplastics are manufactured and are a direct result of human material and product use, and secondary microplastics are microscopic plastic fragments derived from the breakdown of larger plastic debris like the macroscopic parts that make up the bulk of the Great Pacific Garbage Patch.[2] Both types are recognized to persist in the environment at high levels, particularly in aquatic and marine ecosystems. The plastic resin beads created for use by manufactures are often called nurdles.[3] Because plastics do not break down for many years, they can be ingested and incorporated into and accumulated in the bodies and tissues of many organisms.[4] The entire cycle and movement of microplastics in the environment is not yet known, but research is currently underway to investigate this issue.

Contents

1 Classification

1.1 Primary microplastics 1.2 Secondary microplastics 1.3 Other sources: as a by-product/dust emission during wear and tear

2 Sources

2.1 Wastewater treatment
Wastewater treatment
plants (primary treatment) 2.2 Sewage treatment
Sewage treatment
plants (secondary treatment) 2.3 Car and truck tires 2.4 Cosmetics
Cosmetics
industry 2.5 Clothing 2.6 Manufactured goods 2.7 Coastal tourism 2.8 Shipping 2.9 Natural calamities

3 Potential impacts on the environment

3.1 Biological integration into organisms

3.1.1 Humans

3.2 As a dispersal of biota 3.3 Effects on buoyancy 3.4 Persistent organic pollutants

4 Policy and legislation 5 Action for creating awareness 6 See also 7 References 8 Further reading 9 External links

Classification[edit] Primary microplastics[edit] These are particles of plastics that are purposefully manufactured to be microscopic. They are usually used in facial cleansers and cosmetics, or in air blasting technology. In some cases, their use in medicine as vectors for drugs was reported.[5] Microplastic "scrubbers", used in exfoliating hand cleansers and facial scrubs, have replaced traditionally used natural ingredients, including ground almonds, oatmeal and pumice. Primary microplastics have also been produced for use in air blasting technology. This process involves blasting acrylic, melamine or polyester microplastic scrubbers at machinery, engines and boat hulls to remove rust and paint. As these scrubbers are used repeatedly until they diminish in size and their cutting power is lost, they often become contaminated with heavy metals such as cadmium, chromium, and lead.[6] Secondary microplastics[edit] These are described as microscopic plastic fragments derived from the breakdown of larger plastic debris, both at sea and on land. Over time, a culmination of physical, biological and chemical processes can reduce the structural integrity of plastic debris, resulting in fragmentation. It is considered that microplastics might further degrade to be smaller in size, although the smallest microparticle reportedly detected in the oceans at present is 1.6 micrometres (6.3×10−5 in) in diameter.[6] The prevalence of microplastics with uneven shapes suggests that fragmentation is a key source.[7] Other sources: as a by-product/dust emission during wear and tear[edit] Examples of these include dust from car and truck tires,[8]synthetic textiles, ropes, paint and waste treatment. These sources of microplastics are quite recently recognized and are somewhere between primary and secondary microplastics. A Norwegian Environment Agency review report about microplastics published in early 2015[8] states it would be beneficial to classify these sources as primary, as long as microplastics from these sources are added from human society at the "start of the pipe", and their emissions are inherently a result of human material and product use and not secondary defragmentation in nature. Sources[edit]

Polystyrene
Polystyrene
foam beads on an Irish beach

The existence of microplastics in the environment is often proved via aquatic-related studies. These include taking plankton samples, analyzing sandy and muddy sediments, observing vertebrate and invertebrate consumption, and evaluating chemical pollutant interactions.[9] Through such methods, it has been recognized that there are a variety of microplastics in the environment from multiple sources. Microplastics
Microplastics
could contribute up to 30% of the 'plastic soup' polluting the world’s oceans and – in many developed countries – are a bigger source of marine plastic pollution than the more visible larger pieces of marine litter, according to a 2017 IUCN report.[10] Wastewater treatment
Wastewater treatment
plants (primary treatment)[edit] Wastewater treatment
Wastewater treatment
plants are responsible for the filtration of wastewater into an effluent. The presence of microplastics, both primary and secondary, in treatment plants have been confirmed in various studies.[11][12][13] A study done in mid 2016 showed that most microplastics are actually removed during the primary treatment zone where solid skimming and sludge settling are used.[11] The contribution of microplastics into oceans and surface water environments from wastewater treatment plants are minimal.[11][14] Sewage treatment
Sewage treatment
plants (secondary treatment)[edit] See also: Sewage
Sewage
treatment Solid waste (including microplastics) that are removed using solid skimming and sludge settling at primary treatment plants are sent here for further filtration.[11] A study estimated that about one particle per liter of microplastics are being released back into the environment, with a removal efficiency of about 99.9%.[11] Car and truck tires[edit] Estimates of emissions of microplastics to the environment in Denmark are between 5,500 and 14,000 tonnes (6,100 and 15,400 tons) per year. Secondary microplastics (e.g. from car and truck tyres or footwear) are more important than primary microplastics by two orders of magnitude. The formation of microplastics from the degradation of larger plastics in the environment is not accounted for in the study.[15] Cosmetics
Cosmetics
industry[edit] Some companies have replaced natural exfoliating ingredients with microplastics, usually in the form of "microbeads" or "micro-exfoliates". These products are typically composed of polyethylene, a common component of plastics, but they can also be manufactured from polypropylene, polyethylene terephthalate, and nylon.[16] They are often found in face washes, hand soaps, and other such personal care products, so the beads are usually washed into the sewage system immediately after use. Their small size prevents them from fully being retained by preliminary treatment screens at wastewater plants, thereby allowing some to enter rivers and oceans.[17] Dr Trisia Farrelly, an environmental anthropologist at Massey University, has called for a ban on glitter made of PET and aluminium, as it is a microplastic that can break down to hormonal disruptors in the environment.[18] Clothing[edit] Studies[19] have shown that many synthetic fibers, like polyester, nylon and acrylics, can be shed from clothing and persist in the environment.[20] One load of laundry can contain more than 1,900 fibers of microplastics, with fleeces releasing the highest percentage of fibers.[21] Washing machine
Washing machine
manufacturers have also reviewed research into whether washing machine filters can reduce the amount of microfiber fibers that need to be treated by water treatment facilities.[22] Manufactured goods[edit] The manufacture of plastic products uses granules and small resin pellets as their raw material. In the United States, production increased from 2.9 million pellets in 1960 to 21.7 million pellets in 1987. Through accidental spillage during land or sea transport, inappropriate use as packing materials, and direct outflow from processing plants, these raw materials can enter aquatic ecosystems. In an assessment of Swedish waters using an 80 µm mesh, KIMO Sweden
Sweden
found typical microplastic concentrations of 150–2,400 microplastics per m3; in a harbor adjacent to a plastic production facility, the concentration was 102,000 per m3.[6] Coastal tourism[edit] Recreational and commercial fishing, marine vessels, and marine industries are all sources of plastic that can directly enter the marine environment, posing a risk to biota both as macroplastics, and as secondary microplastics following long-term degradation. Tourism and recreational activities account for an array of plastics being discarded along beaches and coastal resorts. Marine debris
Marine debris
observed on beaches also arises from beaching of materials carried on in-shore and ocean currents. Fishing gear
Fishing gear
is one of the most commonly noted plastic debris items with a marine source. Discarded or lost fishing gear, including plastic monofilament line and nylon netting, is typically neutrally buoyant and can therefore drift at variable depths within the oceans. Shipping[edit] Shipping
Shipping
has significantly contributed to marine pollution. Some statistics indicate that in 1970, commercial shipping fleets around the world threw over 23,000 tons of plastic waste into the marine environment. In 1988, an international agreement ( MARPOL
MARPOL
73/78, Annex V) was implemented and prohibited the dumping of waste from ships into the marine environment. However, due to non-implementation of the agreement, shipping remains a dominant source of plastic pollution, having contributed around 6.5 million tons of plastic in the early 1990s.[23] Natural calamities[edit] Floods or hurricanes can accelerate transportation of waste from land to the marine environment. A Californian study revealed that after a storm, the transport of plastics increased from 10 to 60 microplastics per m3. The study showed how the waste was transported and deposited at much greater distances from the river mouth than usual. A similar study conducted near the southern coast of California showed an increase of microplastics from 1 to 18 pieces per m3 after a storm. The abundance and global distribution of microplastics in the oceans [24] has steadily increased over the last few decades with rising plastic consumption worldwide. Potential impacts on the environment[edit]

It has been suggested that this section be split out into another article titled Environmental impacts of microplastics. (Discuss) (September 2016)

Microplastic particles ingested by a larval perch

The first International Research Workshop on the Occurrence, Effects and Fate of Microplastic Marine Debris at the University of Washington Tacoma campus in Tacoma, Washington, USA, from September 9–11, 2008, agreed that microplastics may pose problems in the marine environment, based on the following:

the documented occurrence of microplastics in the marine environment, the long residence times of these particles (and, therefore, their likely buildup in the future), and their demonstrated ingestion by marine organisms.

So far, research has mainly focused on larger plastic items. Widely recognized problems are associated with entanglement, ingestion, suffocation and general debilitation often leading to death and/or strandings. This raises serious public concern. In contrast, microplastics are not as conspicuous, being less than 5 mm. Particles of this size are available to a much broader range of species and therefore can cause serious threats. Biological integration into organisms[edit] Microplastics
Microplastics
often become embedded in animals' tissue through ingestion or respiration. Various annelid species, such as deposit-feeding lugworms (Arenicola marina), have been shown to have microplastics embedded in their gastrointestinal tracts. Many crustaceans, like the shore crab Carcinus maenas
Carcinus maenas
have been seen to integrate microplastics into both their respiratory and digestive tracts.[20][25][26] Additionally, bottom feeders like benthic sea cucumbers, who are non-selective scavengers that feed on debris on the ocean floor, ingest large amounts of sediment. It has been shown that four species of sea cucumber (Thyonella gemmate, Holothuria floridana, H. grisea and Cucumaria frondosa) ingested between 2- and 20-fold more PVC fragments and between 2- and 138-fold more nylon line fragments (as much as 517 fibers per organism) based on plastic to sand grain ratios from each sediment treatment. These results suggest that individuals may be selectively ingesting plastic particles. Since this suggestion opposes the previously determined indiscriminate feeding strategy of sea cucumbers, this trend may be something which could potentially occur in all non-selective feeders when presented with microplastics.[27] Not only fish and free-living organisms can ingest microplastics. Scleractinian corals, which are primary reef-builders, have been shown to ingest microplastics under laboratory conditions.[28] While the effects of ingestion on these corals has not been studied, corals can easily become stressed and bleach. It was also noted that microplastics were present stuck to the exterior of the corals after exposure in the laboratory.[28] The adherence to the outside of corals can potentially be harmful, because corals cannot handle sediment or any particulate matter on their exterior and slough it off by secreting mucus, and they expend a large amount of energy in the process, increasing the chances of mortality.[29] It was found that zooplankton ingest microplastics beads (1.7–30.6 μm) and excrete fecal matter contaminated with microplastics. Along with ingestion, the microplastics stick to the appendages and exoskeleton of the zooplankton.[30] Zooplankton, among other marine organisms, consume microplastics because they emit similar infochemicals, notably dimethyl sulfide, as phytoplankton and other organic materials.[31][32] Plastics such as high-density polyethylene (HDPE), low-density polyethylene (LDPE), and polypropylene (PP) produce dimethyl sulfide odors.[31] These types of plastics are commonly found in plastic bags, bleach, food storage containers, and bottle caps.[33] It can take at least 14 days for microplastics to pass through an animal (as compared to a normal digestion periods of 2 days), but enmeshment of the particles in animals' gills can cause a prolonged presence.[25] When microplastic-laden animals are consumed by predators, the microplastics are then incorporated into the bodies of higher trophic-level feeders. For example, scientists have reported plastic accumulation in the stomachs of lantern fish which are small filter feeders and are the main prey for commercial fish like tuna and swordfish.[34] Microplastics
Microplastics
also absorb chemical pollutants that can be transferred into the organism's tissues.[35] Furthermore, small animals are at risk of reduced food intake due to false satiation and resulting starvation or other physical harm from the microplastics. Humans[edit] As fish is the primary source of protein for nearly one-fifth of the human population.[36] The microplastics ingested by fish and crustaceans can be subsequently consumed by humans as the end of the food chain. In a study done by the State University of New York, 18 fish species were sampled and all species showed some level of plastics in their systems.[20][25] Many additional researchers have found evidence that these fibers had become chemically-associated with metals, polychlorinated biphenyls, and other toxic contaminants while in water. The microplastic-metal complex can then enter humans via consumption.[20] It remains unclear how much of an impact this has directly on the health of humans, but research on this issue continues. As a dispersal of biota[edit] Plastic
Plastic
debris has also been shown to serve as carrier for the dispersal of biota, thus greatly increasing dispersal opportunities in the oceans, endangering marine biodiversity worldwide.[37] The dispersal of aggressive alien and invasive species is as much a topic as the dispersal of cosmopolitan species.[38] By spreading species to regions that they normally do not inhabit, disruptions in local ecosystems can occur. The fact that microplastics can negatively perpetuate the dispersal of biota is notable, especially when policies and laws are being implemented about the usage of plastic. Effects on buoyancy[edit] Approximately half of the plastic material introduced to the marine environment is buoyant, but fouling by organisms can induce the sinking of additional plastic debris to the sea floor, where it may interfere with sediment-dwelling species and sedimental gas exchange processes. Buoyancy changes in relation to ingestion of microplastics have been clearly observed in autotrophs because the absorption can interfere with photosynthesis and subsequent gas levels.[39] However, this issue is of more importance for larger plastic debris. Persistent organic pollutants[edit] Furthermore, plastic particles may highly concentrate and transport synthetic organic compounds (e.g. persistent organic pollutants, POPs), commonly present in the environment and ambient sea water, on their surface through adsorption.[40] It still remains unknown if microplastics can act as agents for the transfer of POPs
POPs
from the environment to organisms in this way, but evidence[23] suggest this to be a potential portal for entering food webs. New data indicate that microplastics are not important for the bioaccumulation of organic pollutants in the oceans.[41][42] Of further concern, additives added to plastics during manufacture may leach out upon ingestion, potentially causing serious harm to the organism. Endocrine disruption by plastic additives may affect the reproductive health of humans and wildlife alike.[43] At current levels, microplastics are unlikely to be an important global geochemical reservoir for POPs
POPs
such as PCBs, dioxins, and DDT in open oceans. It is not clear, however, if microplastics play a larger role as chemical reservoirs on smaller scales. A reservoir function is conceivable in densely populated and polluted areas, such as bights of mega-cities, areas of intensive agriculture and effluents flumes.[citation needed] Plastics, polymers derived from mineral oils, are virtually non-biodegradable. However, renewable natural polymers are now in development which can be used for the production of biodegradable materials similar to that of oil-based polymers. Their properties in the environment, however, require detailed scrutiny before their wide use is propagated. Policy and legislation[edit] With increasing knowledge of the detrimental effects of microplastics on the environment, many groups are now advocating for the removal and ban of microplastics from various products. One of the most prominent campaigns is the "Beat the Microbead" movement, which focuses on removing plastics from personal care products.[16] The Adventurers and Scientists for Conservation are running a Microplastics
Microplastics
Project that is working to pass a national ban on microbeads in household items and cosmetics. Even UNESCO
UNESCO
has sponsored research and global assessment programs due to the trans-boundary issue that microplastic pollution constitutes.[44] These environmental groups will seemingly keep pressuring companies to remove plastics from their products in order to maintain healthy ecosystems.[45]

United States

In the US, some states have taken action to mitigate the negative environmental effects of microplastics. Illinois was the first U.S. state to ban cosmetics containing microplastics. On the national level, the Microbead-Free Waters Act 2015
Microbead-Free Waters Act 2015
was enacted after being signed by President Barack Obama on December 28, 2015.[46][47] It is effective from July 1, 2017 with respect to manufacturing, and July 1, 2018 with respect to introduction or delivery for introduction into interstate commerce. Action for creating awareness[edit] On April 11, 2013 in order to create awareness, artist Maria Cristina Finucci founded The Garbage patch state[48] under the patronage of UNESCO
UNESCO
and the Italian Ministry of the Environment.[49] See also[edit]

Microbead Plastic
Plastic
particle water pollution (Nurdles) Plastic
Plastic
pollution Endocrine disruption Biodegradable plastic

References[edit]

^ Arthur, Courtney; Baker, Joel; Bamford, Holly (January 2009). "Proceedings of the International Research Workshop on the Occurrence, Effects and Fate of Microplastic Marine Debris". NOAA Technical Memorandum.  ^ "Great Pacific Garbage Patch". National Geographic Education. National Geographic. 19 September 2014. Retrieved 12 April 2016.  ^ Hammer, J; Kraak, MH; Parsons, JR (2012). "Plastics in the marine environment: the dark side of a modern gift". Reviews of environmental contamination and toxicology. 220: 1–44. doi:10.1007/978-1-4614-3414-6_1.  ^ Grossman, Elizabeth: "How Plastics from Your Clothes Can End up in Your Fish", Time, 15 Jan. 2015, http://time.com/3669084/plastics-pollution-fish/ ^ Patel, M.M.; Goyal, B.R.; Bhadada, S.V.; Bhatt, J.S.; Amin, A.F. (2009). "Getting into the brain: approaches to enhance brain drug delivery". CNS Drugs. 23: 35–58. doi:10.2165/0023210-200923010-00003.  ^ a b c Cole Matthew (2011). " Microplastics
Microplastics
as contaminants in the marine environment: A review". Marine Pollution Bulletin. 62: 2588–2597. doi:10.1016/j.marpolbul.2011.09.025.  ^ Browne, Mark A. (2015-01-01). Bergmann, Melanie; Gutow, Lars; Klages, Michael, eds. Sources and Pathways of Microplastics
Microplastics
to Habitats. Springer International Publishing. pp. 229–244. doi:10.1007/978-3-319-16510-3_9. ISBN 9783319165097.  ^ a b Sundt, Peter and Schulze, Per-Erik: "Sources of microplastic-pollution to the marine environment", "Mepex for the Norwegian Environment Agency", 2015 ^ Ivar do Sul, Juliana A and Costa, Monica F: "The present and future of microplastic pollution in the marine environment", "Science Direct", 185: 352-264, February 2014 ^ IUCN: "Primary microplastics in the oceans : a global evaluation of sources" 43p. https://www.iucn.org/news/secretariat/201702/invisible-plastic-particles-textiles-and-tyres-major-source-ocean-pollution-%E2%80%93-iucn-study ^ a b c d e Carr, Steve A.; Liu, Jin; Tesoro, Arnold G. "Transport and fate of microplastic particles in wastewater treatment plants". Water Research. 91: 174–182. doi:10.1016/j.watres.2016.01.002.  ^ Estahbanati, Shirin; Fahrenfeld, N.L. "Influence of wastewater treatment plant discharges on microplastic concentrations in surface water". Chemosphere. 162: 277–284. doi:10.1016/j.chemosphere.2016.07.083.  ^ Mintenig, S.M.; Int-Veen, I.; Löder, M.G.J.; Primpke, S.; Gerdts, G. "Identification of microplastic in effluents of waste water treatment plants using focal plane array-based micro-Fourier-transform infrared imaging". Water Research. 108: 365–372. doi:10.1016/j.watres.2016.11.015.  ^ Murphy, Fionn; Ewins, Ciaran; Carbonnier, Frederic; Quinn, Brian (2016-06-07). "Wastewater Treatment Works (WwTW) as a Source of Microplastics
Microplastics
in the Aquatic Environment". Environmental Science & Technology. 50 (11): 5800–5808. doi:10.1021/acs.est.5b05416. ISSN 0013-936X.  ^ http://www2.mst.dk/Udgiv/publications/2015/10/978-87-93352-80-3.pdf, page 14 ^ a b ”International Campaign against Microbeads in Cosmetics Archived 2015-03-15 at the Wayback Machine.”, “Beat the Microbead”, 2015, ^ Fendall S. Lisa, Mary A. Sewell, 2009, Contributing to marine pollution by washing your face: Microplastics
Microplastics
in facial cleansers, Marine Pollution Bulletin, Nr. 58, pp.1225 - 1228 ^ Glitter
Glitter
should be banned over environmental impact, scientists warn, Josh Gabbatiss, The Independent, 16 November 2017. ^ "LIFE-MERMAIDS Project". LEITAT. 2014-08-08. Retrieved 2018-02-02.  ^ a b c d Grossman, Elizabeth: “How Microplastics
Microplastics
from Your Fleece Could End up on Your Plate”, “Civil Eats”, January 15, 2015 ^ Browne A., 2011, Accumulations of microplastic on shorelines worldwide: sources and sinks, Environmental Science and Technology. ^ "An Update on Microfiber Pollution". Patagonia. 2017-02-03. Retrieved 2017-05-14.  ^ a b Derraik, José G: "The pollution of the marine environment by plastic debris: a review", Marine Pollution Bulletin, 44(9), pp. 842–852, 2002; Teuten, E L: "Transport and release of chemicals from plastics to the environment and to wildlife", Philosophical Transactions of the Royal Society B – Biological Sciences, 364(1526), pp. 2027–2045, 2009 ^ "COMMON SENSE Project". LEITAT. 2013-10-31. Retrieved 2018-02-02.  ^ a b c Akpan, Nsikan: " Microplastics
Microplastics
Lodge in Crab Gills and Guts." Science News, 8 July 2014, https://www.sciencenews.org/article/microplastics-lodge-crab-gills-and-guts ^ Thompson, Richard C. (2004-05-07). "Lost at Sea: Where is All the Plastic". Science. 304 (5672): 838. doi:10.1126/science.1094559. PMID 15131299.  ^ Wright, Stephanie (February 13, 2013). "The physical impacts of microplastics on marine organisms: A review" (PDF). Environmental Pollution. 178: 483–492. doi:10.1016/j.envpol.2013.02.031.  ^ a b Hall, Berry, Rintoul, & Hoogenboom (4 February 2015). "Microplastic ingestion by scleractinian corals". Marine Biology. 162: 725–732. doi:10.1007/s00227-015-2619-7. CS1 maint: Multiple names: authors list (link) ^ Hopley, David (2010-11-26). Encyclopedia of Modern Coral Reefs: Structure, Form and Process. Springer Science & Business Media. p. 577. ISBN 9789048126385.  ^ Cole, Matthew; Lindeque, Pennie; Fileman, Elaine; Halsband, Claudia; Goodhead, Rhys; Moger, Julian; Galloway, Tamara S. (2013-06-18). "Microplastic Ingestion by Zooplankton". Environmental Science & Technology. 47 (12): 6646–6655. doi:10.1021/es400663f. ISSN 0013-936X.  ^ a b Savoca, Matthew S.; Wohlfeil, Martha E.; Ebeler, Susan E.; Nevitt, Gabrielle A. (2016-11-01). "Marine plastic debris emits a keystone infochemical for olfactory foraging seabirds". Science Advances. 2 (11): e1600395. doi:10.1126/sciadv.1600395. ISSN 2375-2548.  ^ Dacey, John W. H.; Wakeham, Stuart G. (1986-09-19). "Oceanic Dimethylsulfide: Production During Zooplankton
Zooplankton
Grazing on Phytoplankton". Science. 233 (4770): 1314–1316. doi:10.1126/science.233.4770.1314. ISSN 0036-8075. PMID 17843360.  ^ "Plasticology 101". Container & Packaging Supply.  ^ Lemonick, Sam: " Plastic
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goes missing at sea," Science News, 1 July 2014, http://www.sciencenews.org/article/plastic-goes-missing-sea ^ Wardrop, Peter; Shimeta, Jeff; Nugegoda, Dayanthi; Morrison, Paul D.; Miranda, Ana; Tang, Min; Clarke, Bradley O. (2016-04-05). "Chemical Pollutants Sorbed to Ingested Microbeads from Personal Care Products Accumulate in Fish". Environmental Science & Technology. 50 (7): 4037–4044. doi:10.1021/acs.est.5b06280. ISSN 0013-936X.  ^ World Wildlife Fund: "Unsustainable fishing", 2010 ^ Barnes, David K: "Accumulation and fragmentation of plastic debris in global environments", Phil. Trans. R. Soc. B, 364, pp. 1985–1998, 2002, doi:10.1098/rstb.2008.0205 PMID 19528051 ^ Gregory, M R: "Environmental implications of plastic debris in marine settings – entanglement, ingestion, smothering, hangers-on, hitch-hiking and alien invasions", Philos Trans R Soc Lond B Biol Sci, 364(1526), pp. 2013–2025, 2009 ^ Martin, Ogonowski: "Ecological and ecotoxicological effects of microplastics and associated contaminants on aquatic biota", AquaBiota Water Research, 2015 ^ Mato Y: " Plastic
Plastic
resin pellets as a transport medium for toxic chemicals in the marine environment", Environmental Science & Technology 35(2), pp. 318–324, 2001 ^ Rainer Lohmann (2017). " Microplastics
Microplastics
are not important for the cycling and bioaccumulation of organic pollutants in the oceans-but should microplastics be considered POPs
POPs
themselves?". Integrated Environmental Assessment and Management. 13 (3): 460–465. doi:10.1002/ieam.1914.  ^ Albert A. Koelmans, Adil Bakir, G. Allen Burton, Colin R. Janssen (2016). "Microplastic as a Vector for Chemicals in the Aquatic Environment: Critical Review and Model-Supported Reinterpretation of Empirical Studies". Environmental Science & Technology. 50 (7): 3315–3326. doi:10.1021/acs.est.5b06069. CS1 maint: Multiple names: authors list (link) ^ Teuten, E L: "Transport and release of chemicals from plastics to the environment and to wildlife", Philosophical Transactions of the Royal Society B – Biological Sciences, 364(1526), pp. 2027–2045, 2009 ^ Morris and Chapman: "Marine Litter", "Green Facts: Facts on Health and the Environment", 2001-2015 ^ Ross, Philip: "'Microplastics' In Great Lakes Pose 'Very Real Threat' To Humans and Animals", International Business Times, 29 October 2013 ^ "Microbead-Free Waters Act of 2015 (H.R. 1321)".  ^ "Text of H.R. 1321: Microbead-Free Waters Act of 2015 (Passed Congress/Enrolled Bill version) - GovTrack.us".  ^ "The garbage patch territory turns into a new state". United Nations Educational, Scientific and Cultural Organization.  ^ "Rifiuti diventano stato, Unesco riconosce 'Garbage Patch'" (in Italian). Archived from the original on 2014-07-14. 

Further reading[edit]

Wagner, Martin; Scherer, Christian; et al. " Microplastics
Microplastics
in freshwater ecosystems: what we know and what we need to know". Environmental Sciences Europe. 26: 2014. doi:10.1186/s12302-014-0012-7. CS1 maint: Explicit use of et al. (link) Eerkes-Medrano, Dafne; Thompson, Richard C.; Aldridge, David C. " Microplastics
Microplastics
in freshwater systems: A review of the emerging threats, identification of knowledge gaps and prioritisation of research needs". Water Research. 75: 2015. doi:10.1016/j.watres.2015.02.012.  Rocha-Santos, Teresa; Duarte, Armando C. "A critical overview of the analytical approaches to the occurrence, the fate and the behavior of microplastics in the environment". TrAC Trends in Analytical Chemistry. 65: 2015. doi:10.1016/j.trac.2014.10.011. 

External links[edit]

NOAA Marine Debris Program Algalita Marine Research Foundation The Great Pacific Garbage Patch
Great Pacific Garbage Patch
on YouTube Capt. Charles Moore on the seas of plastic – video at TED.com International Pellet Watch

News

"Q&A: our plastic addiction is out of control. How can we consume less?," The Guardian, September 2017 "We are living on a plastic planet. What does it mean for our health?," The Guardian, September 2017 " Plastic
Plastic
fibres found in tap water around the world, study reveals," The Guardian, September 2017 "'Microplastics' May Pose Previously Unrecognized Pollution Threat," Science Daily, November 2007

Films

Plastic
Plastic
Planet, Werner Boote and Gerhard Pretting Addicted To Plastic
Plastic
on YouTube Addicted to Plastic
Plastic
at Bullfrog Films and at Cryptic Moth Plasticized on YouTube

v t e

Plastics

Chemical types

Acrylonitrile butadiene styrene
Acrylonitrile butadiene styrene
(ABS) Cross-linked polyethylene
Cross-linked polyethylene
(PEX, XLPE) Ethylene vinyl acetate (EVA) Poly(methyl methacrylate)
Poly(methyl methacrylate)
(PMMA) Polyacrylic acid
Polyacrylic acid
(PAA) Polyamide
Polyamide
(PA) Polybutylene
Polybutylene
(PB) Polybutylene
Polybutylene
terephthalate (PBT) Polycarbonate
Polycarbonate
(PC) Polyetheretherketone (PEEK) Polyester
Polyester
(PEs) Polyethylene
Polyethylene
(PE) Polyethylene
Polyethylene
terephthalate (PET, PETE) Polyimide
Polyimide
(PI) Polylactic acid
Polylactic acid
(PLA) Polyoxymethylene
Polyoxymethylene
(POM) Polyphenyl ether
Polyphenyl ether
(PPE) Polypropylene
Polypropylene
(PP) Polystyrene
Polystyrene
(PS) Polysulfone
Polysulfone
(PES) Polytetrafluoroethylene
Polytetrafluoroethylene
(PTFE) Polyurethane
Polyurethane
(PU) Polyvinyl chloride
Polyvinyl chloride
(PVC) Polyvinylidene chloride
Polyvinylidene chloride
(PVDC) Styrene maleic anhydride
Styrene maleic anhydride
(SMA) Styrene-acrylonitrile (SAN)

Mechanical types

Thermoplastic Duroplast Corrugated plastic Polymeric foam High performance plastics

Additives

Polymer additive Colorants Plasticizer Stabilizer for polymers Biodegradable additives

Products

Plastic
Plastic
industry

Commodity plastics Engineering plastics Plastic
Plastic
film Plastic
Plastic
bottle Plastic
Plastic
bag Plastic
Plastic
shopping bag Plastic
Plastic
cutlery Blister pack Foam food container Construction Geosynthetics Category:Plastics applications

Environment and health

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Health issues of plastics and polyhalogenated compounds (PHCs)

Plasticizers: Phthalates

DIBP DBP BBP (BBzP) DIHP DEHP (DOP) DIDP DINP

Miscellaneous plasticizers

Organophosphates Adipates (DEHA DOA)

Monomers

Bisphenol A
Bisphenol A
(BPA, in Polycarbonates) Vinyl chloride
Vinyl chloride
(in PVC)

Miscellaneous additives incl. PHCs

PBDEs PCBs Organotins PFCs

Perfluorooctanoic acid

Health issues

Teratogen Carcinogen Endocrine disruptor Diabetes Obesity

Obesogen

Polymer fume fever

Pollution

Plastic
Plastic
pollution Great Pacific garbage patch Persistent organic pollutant Dioxins List of environmental health hazards

Regulations

California Proposition 65 European REACH regulation Japan Toxic Substances Law Toxic Substances Control Act

Waste

Plastic
Plastic
pollution

Great Pacific garbage patch Persistent organic pollutant Dioxins List of environmental health hazards

Plastic
Plastic
recycling Biodegradable plastic

Id

.