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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It provides guidance on care for use in resource-limited settings or in settings where families with sick young infants do not accept or cannot access referral care, but can be managed in outpatient settings by an appropriately trained health worker. The guideline seeks to provide programmatic guida...nce on the role of CHWs and home visits in identifying signs of serious infections in neonates and young infants.
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Long-lasting insecticidal nets (LLINs) treated with a pyrethroid insecticide and the synergist piperonyl butoxide (PBO) have become available. Two of these nets (Olyset®Plus and PermaNet®3.0) have a WHO Pesticide Evaluation Scheme (WHOPES) interim recommendation as LLINs
Voices from Eastern Aleppo. A Compilation of Testimonies Illustrating the Hardships of Daily Life in Eastern Aleppo under Barrel Bombings, through the Eyes of Local Residents
The present report is submitted pursuant to Security Council resolution 2164 (2014), by which the Council extended the mandate of the United Nations Multidimensional Integrated Stabilization Mission in Mali (MINUSMA) and requested me to report to it every three months on the implementation of the re...solution and the progress on the implementation of the Mission’s mandate. The present report covers the period from 17 December 2014 to 19 March 2015.
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Mood disorders
Chapter E.1
2015 edition
WHO would like to express its gratitude and appreciation to all Member States that provided information to the WHO survey on policies and activities at the national level in the area of antimicrobial resistance. The contribution of staff in WHO Regional and Country Offices has been invaluable: in ga...ther-ing original data and information from Member States, in supporting the process of aggregation of these data; and in reviewing the regional analysis of the findings that reflect the country situation at the point when the survey was conducted. The support and commitment of the members of the WHO Task Force on Antimicrobial Resistance, comprising WHO staff from Headquarters and Regional Offices has, is also acknowledged.
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Summary of lessons learned
Self-imposed quarantine has proved less problematic.
The timely and reliable delivery of resources (e.g. food/water) and expertise (e.g. contact tracing/safe and dignified burials) is essential to ensure cooperation and deter quarantine violation.
The commun...ities’ understanding of the benefits of quarantine and its role in stopping the outbreak is essential.
Coercion is counterproductive.
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