Environmental Research Letters
Microplastic debris floating at the ocean surface can harm marine life. Understanding the severity of this harm requires knowledge of plastic abundance and distributions. Dozens of expeditions measuring microplastics have been carried out since the 1970s, but they ha...ve primarily focused on the North Atlantic and North Pacific accumulation zones, with much sparser coverage elsewhere. Here, we use the largest dataset of microplastic measurements assembled to date to assess the confidence we can have in global estimates of microplastic abundance and mass. We use a rigorous statistical framework to standardize a global dataset of plastic marine debris measured using surface-trawling plankton nets and coupled this with three different ocean circulation models to spatially interpolate the observations. Our estimates show that the accumulated number of microplastic particles in 2014 ranges from 15 to 51 trillion particles, weighing between 93 and 236 thousand metric tons, which is only approximately 1% of global plastic waste estimated to enter the ocean in the year 2010. These estimates are larger than previous global estimates, but vary widely because the scarcity of data in most of the world ocean, differences in model formulations, and fundamental knowledge gaps in the sources, transformations and fates of microplastics in the ocean.
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Briefing Note no. 80 November 2015
DEMOGRAPHIC AND HEALTH SURVEYS DHS WORKING PAPERS 2015 No. 117
Eur Respir J 2014; 43: 24–35 | DOI: 10.1183/09031936.00113413
Leitfaden für Fachpersonen des Gesundheitswesens. Grundlage des vorliegenden Handbuchs sind die aktuellen internationalen Leitlinien zur Diagnose und Behandlung der Tuberkulose.
Die vorliegende gekürzte Fassung ergänzt und aktualisiert das «Handbuch Tuberkulose 2012
PeerJ PrePrints , http://dx.doi.org/10.7287/peerj.preprints.579v1 2 Nov 2014
PlosOne December 10, 2014 https://doi.org/10.1371/journal.pone.0111913
Plastic pollution is ubiquitous throughout the marine environment, yet estimates of the global abundance and weight of floating plastics have lacked data, particularly from the Southern Hemisphere and remote regions. Here we re...port an estimate of the total number of plastic particles and their weight floating in the world's oceans from 24 expeditions (2007–2013) across all five sub-tropical gyres, costal Australia, Bay of Bengal and the Mediterranean Sea conducting surface net tows (N = 680) and visual survey transects of large plastic debris (N = 891). Using an oceanographic model of floating debris dispersal calibrated by our data, and correcting for wind-driven vertical mixing, we estimate a minimum of 5.25 trillion particles weighing 268,940 tons. When comparing between four size classes, two microplastic <4.75 mm and meso- and macroplastic >4.75 mm, a tremendous loss of microplastics is observed from the sea surface compared to expected rates of fragmentation, suggesting there are mechanisms at play that remove <4.75 mm plastic particles from the ocean surface.
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ERRATA
2214-9996/a 2014 Icahn School of Medicine at Mount Sinai
Department of Medical Education Icahn School of Medicine at Mount Sinai, New York
http://dx.doi.org/10.1016/j.aogh.2014.10.003
PLOS Neglected Tropical Diseases September 2014 | Volume 8 | Issue 9 | e3016 DOI: 10.1371/journal.pntd.0003016
Schizophr Bull. 2014 Jan;40(1):192-213. doi: 10.1093/schbul/sbs150. Epub 2012 Dec 17.
Public Health is the science field dedicated to promoting health and well-being, and preventing disease within the human population to ultimately increase the quality of our livelihood and life span. Public Health does not focus on individual patients or diseases, but rather a given population and ...health system. The discipline is community-centered in its interventions and seeks to improve the health status of whole populations...
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Actualités et réflexions sur la prise en charge médicale du premier patient suspect d’infection par le premier médecin
Guideline
SAJHIVMED DECEMBER 2013, Vol. 14, No. 4
Informationsbroschüre für Patienten und Ärzte in Bildern | Hastalar ve doktorlar için resimli bilgilendirme broşürü | Информационная брошюра для пациентов и врачей в картинках.
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The prevalence, availability, and use of antimalarial medicines (AMLs) were studied in six Cambodian provinces along the Thai-Cambodian border. The study was divided into two parts: the first looked at the quality of AMLs available in Pursat, Pailin, Battambang, Bantey Meanchey, Oddar Meanchey, and ...Preah Vihear and the second obtained information about the availability and use of AMLs.
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Europe PMC Funders Group
Author Manuscript
Arch Dis Child. Author manuscript; available in PMC 2013 November 01.
Published in final edited form as:
Arch Dis Child. 2013 May ; 98(5): 323–327. doi:10.1136/archdischild-2012-302079.