![]() (2015) Microplastic contamination in an urban area: a case study in Greater Paris. doi: 10.3934/environsci.2017.6.809Ĭarr SA (2017) Sources and dispersive modes of micro-fibers in the environment. (2017) Microplastics in urban New Jersey freshwaters: distribution, chemical identification, and biological effects. (2016) Microplastic pollution is widely detected in US municipal wastewater treatment plant effluent. doi: 10.1016/j.watres.2015.02.012Įstahbanati S, Fahrenfeld NL (2016) Influence of wastewater treatment plant discharges on microplastic concentrations in surface water. doi: 10.1016/j.scitotenv.2017.01.190Įerkes-Medrano D, Thomson RC, Aldridge DC (2015) Microplastics in freshwater systems: A review of the emerging threats, identification of knowledge gaps and prioritization of research needs. (2017) Review: Microplastics in freshwater and terrestrial systems: Evaluating the current understanding to identify knowledge gaps and future research priorities. doi: 10.3934/environsci.2019.6.445Īuta HS, Emenike CU, Fauziah SH (2017) Distribution and importance of microplastics in the marine environment: A review of the sources, fate, effects, and potential solutions. Organic compounds associated with microplastic pollutants in New Jersey, U.S.A. The findings of this study illustrate the diversity of organic compounds associated with the presence of microplastics in aquatic media.Ĭitation: B. Six compounds are used as cosmetic additives. Twelve identified compounds are used for industrial purposes, including a plasticizer and an insecticide. Forty one percent of the identified compounds were natural substances, thirty five percent were identified as laboratory/research chemicals and seven percent were pharmaceutical or biomedical compounds. Based on a search of chemical databases, the possible source/use of 180 of the 223 compounds identified, whose total mass was 1 ng or more, was determined. However, in the tidal portion of the Passaic River and in samples from Newark and Raritan Bays, the majority of organic compounds were associated with the microplastic fraction only. In the majority of upriver sampling locations, Tentatively Identified Compounds were associated with both the microplastic and the water column fractions in roughly equal proportions. To identify Persistent Organic Pollutants sorbed to microplastic particles, headspace solid phase micro extraction coupled with gas chromatography/ion trap mass spectrometry was employed. The dominant polymers differed in each river. Three polymers dominated the samples: polyethylene (43%), polypropylene (33%), and polystyrene (13%). Using a pyrolysis GC-MS method, plastic polymer composition was determined in samples obtained from freshwaters in urban New Jersey. These micro- to nano- size plastic particles that are deliberately manufactured or were fragmented from larger plastic products are now ending up in food webs and worldwide environmental systems. However, the pervasiveness of small, potentially invisible, microplastics, their associated chemical additives, and organic compounds that absorb to plastic substrates are the topics of recent investigations. A Twitter user said that they are "tired of caucasian people in every school book.Extensive manufacturing and ubiquitous use in every sector of today’s society has resulted in plastics being detected in all terrestrial and aquatic environments examined to date. Many on Twitter have called for school books on biology with black people illustration. In medical books, and also in school and college books, little attention is paid to racialising illustrations on the human body. I have birthed four children and in all my reading, or learning about the reproductive system in school, I never saw a racialized baby in utero. I need this to be the only version of the body I ever see again. There is at least one other person I know of who is expanding the diversity of skin colors in medical illustrations for teaching and learning," said another, highlighting the need for colour representation in medicine. Can’t wait to see more, well done Doc," said a Twitter user. ![]() Please support this cause□ /YGrzINJfoe- Chidiebere Ibe November 24, 2021 Illustration by #pregnant #MedEd #scicomm #inclusion #AcademicTwitter #MedTwitter #illustration #Metaverse Ibe's illustration of a black fetus in a black pregnant woman has gone viral on social media as many claimed that they had never seen one in their whole life. Medical student, medical illustrator, and aspiring neurosurgeon Chidiebere Ibe's latest illustration is a prime example of diversity and equality in the field of medicine, and society.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |