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1
The role of environmental contamination in transmission of COVID-19 virus is currently not clear. This protocol has been designed to determine (viable) virus presence and persistence on fomites in various locations where a patient infected with COVID-19 is currently receiving care or being isolated,
...
and to understand how this may relate to COVID-19 transmission events in these settings. It is therefore important that it is done as part of a comprehensive outbreak investigation and that information obtained by environmental studies is combined with the results of epidemiological, laboratory and sequence data from COVID-19 patient investigations.
more
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 have 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.
more
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.
more
the Lancet : Published Online July 31, 2015 http://dx.doi.org/10.1016/S0140-6736(15)61117-5
The authors conduct an integrated survey of Antimicrobial Resistant Organisms (AMR) in drinking water, wastewater and surface water in three settings in Bangladesh: rural households, rural poultry farms, and urban food markets. Results show that unt
...
reated water discharged from rural households, poultry farms and urban markets are major contributors to surface water pollution and antibiotic resistant bacteria genes, calling for increased surveillance and monitoring.
more
State of the Climate in Asia 2023
recommended
Asia remained the world’s most disaster-hit region from weather, climate and water-related hazards in 2023. Floods and storms caused the highest number of reported casualties and economic losses, whilst the impact of heatwaves became more severe, according to a new report from the World Meteorolog
...
ical Organization (WMO).
The State of the Climate in Asia 2023 report highlighted the accelerating rate of key climate change indicators such as surface temperature, glacier retreat and sea level rise, which will have major repercussions for societies, economies and ecosystems in the region.
In 2023, sea-surface temperatures in the north-west Pacific Ocean were the highest on record. Even the Arctic Ocean suffered a marine heatwave.
Asia is warming faster than the global average. The warming trend has nearly doubled since the 1961–1990 period.
more
A module from the suite of health service capacity assessments in the context of the COVID-19 pandemic, Interim guidance 20 October 2020. This assessment tool covers the following aspects:
area distribution;
surface availability versus f
...
oreseen occupancy rate;
patient and staff flows;
ventilation requirement per specific areas;
visitors’ area and visitor flow; and
surge capacity.
more
No publication year indicated.
Les maladies infectieuses sont en constante mutation. De nouvelles maladies apparaissent, d’autres qui sont bien connues se propagent ou refont surface, et quelques rares fois, une maladie est éradiquée. Les maladies infectieuses telles que le V
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IH, la tuberculose et le choléra sont des causes considérables de morbidité et de mortalité dans plusieurs régions du monde. Le personnel de la santé joue un rôle primordial, en ce qui concerne la protection de leurs clients contre les maladies infectieuses et leurs traitements en cas d’infection. Dans le cadre de leur travail, le personnel de santé accomplisse des tâches cliniques ou autres activités susceptibles de les exposer ainsi que leurs clients aux microorganismes – orga- nismes potentiellement infectieux. Bon nombre de ces clients sont malades et, par conséquent, sont plus vulnérables aux infections ou peuvent avoir des infec-tions susceptibles d’être transmises à d’autres personnes. Par chance, l’ensemble du personnel travaillant dans les services de santé est en mesure d’exécuter des procédés simples visant à minimiser le risque – vis-à-vis d’eux-mêmes et de leurs clients – et réduire la propagation des infections. Ces pratiques peuvent être intégrées à moindre frais dans les habitudes quotidiennes au sein des établissements de santé du monde entier. Ce guide de référence est spécialement conçu pour l’emploi à tous les niveaux du système sanitaire, depuis les plus grands hôpitaux jusqu’aux plus petits dispensaires ou centres de santé, dans des établissements où les ressources sont rares.Ce guide, publié pour la première fois en 1999, a été mis à jour. Bien que la plu-part des pratiques restent inchangées, il a fait l’objet de quelques modifications significatives – par exemple, concernant les recommandations liées au lavage des mains et aux précautions standard. Toutefois, ce guide continue de présenter des recommandations pratiques en matière de procédés simples et relativement peu coûteux pouvant être exécutés partout, à l’aide des matériels de base et des équi-pements de niveau technologique moyen.
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Oxfam Water Supply Scheme for Emergencies. This manual is part of a series of guides devised by the Oxfam Public Health Engineering Team to help provide a reliable water supply for populations affected by conflict or natural disaster. Wherever possible, water supplies in emergency conditions should
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be obtained from underground sources by exploitation of springs, tubewells, or dug wells. No filtration will then be needed. However, if sources are not available or cannot be developed, the use of surface water from streams, rivers, lakes or ponds becomes necessary. Usually these surface sources are polluted. The level of faecal contamination can be measured by use of the Oxfam/Delagua Water Test Kit (see Section C). Where a serious level of faecal pollution exists, it is essential firstly to try to reduce the cause of contamination, and secondly to treat the water to make it suitable for human consumption. The Filtration equipment provides a simple, long-term physical and biological treatment system that requires no chemicals (except small amounts of chlorine required during filter cleaning) and needs only simple regular maintenance
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Orientations provisoires
Detonation of a nuclear weapon or activation of a radiological dispersal device could cause radioactively contaminated decedents. These guidelines are designed to address both of these scenarios. They could also be applicable in other instances where decedents’ bodies are contaminated with radioa
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ctive material (e.g. reactor accidents, transportation accidents involving radioactive material, or
the discharge of a decedent from a hospital after injection or implantation of a radiopharmaceutical). These guidelines suggest ways for medical examiners, coroners, and morticians to deal with loose surface contamination, internal contamination, or shrapnel on or in decedents’ bodies.
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Standard Treatment Guideline
Reducing the humanitarian impact of the use of explosive weapons in populated areas is a key priority for the United
Nations, the International Committee of the Red Cross (ICRC), civil society and an increasing number of Member States.
The United Nations Secretary-General has expressly called on
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parties to conflict to avoid the use in populated areas of
explosive weapons with wide-area effects.
While the use of explosive weapons in populated areas may in some circumstances be lawful under international
humanitarian law (IHL), empirical evidence reveals a foreseeable and often widespread pattern of harm to civilians,
particularly from explosive weapons with wide-area effects.
Many types of explosive weapons exist and are currently in use. These include air-delivered bombs, artillery projectiles,
missiles and rockets, mortar bombs, and improvised explosive devices (IEDs). Some are launched from the air and
others are surface launched. Whilst different technical features dictate their accuracy of delivery and explosive effect,
these weapons generally create a zone of blast and fragmentation with the potential to kill, injure or damage anyone
or anything within that zone. This makes their use in populated areas – such as towns, cities, markets and camps for
refugees and displaced persons or other concentrations of civilians – particularly problematic. The problems increase
further if the effects of the weapon extend across a wide-area either because of the scale of blast that they produce; their
inaccuracy; the use of multiple munitions across an area; or a combination thereof.
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Using an ensemble of climate models and socioeconomic scenarios, WRI scored and ranked future water stress—a measure of competition and depletion of surface water—in 167 countries by 2020, 2030, and 2040. We found that 33 countries face extremel
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y high water stress in 2040 (see the full list). We also found that Chile, Estonia, Namibia, and Botswana could face an especially significant increase in water stress by 2040. This means that businesses, farms, and communities in these countries in particular may be more vulnerable to scarcity than they are today.
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Accessed 24 June 2014
Malawi is a landlocked country with a surface area of 118,484 km2. Administratively, the country is divided into three regions, namely the Northern, Central and Southern regions. The country has 28 districts, which are further divided into tradition
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al authorities (TA) ruled by chiefs. The TAs are sub-divided into villages, which form the smallest administrative units. The Village Development Committees (VDCs) under the TAs are responsible for development activities. Politically, each district is divided into constituencies that are represented by Members of Parliament (MPs) in the National Assembly for purposes of legislations. Constituencies are further divided into wards which are represented by a ward councillor at district assembly.
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A septic tank takes raw sewage in, allows the solids to settle (sludge) and allows the remaining liquid to flow into the surrounding soil by means of a soakaway. Scum on the surface is also prevented from leaving the tank. Microorganisms in the anae
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robic environment in the tank digest the sludge and scum. The system consists of several stages, supply to the tank, the tank itself and the soak field.
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