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  • Household air pollution and health - WHO | World

    Il servizio gratuito di Google traduce all'istante parole, frasi e pagine web tra l'italiano e più di 100 altre lingue.

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  • Google Traduttore

    2021-7-21 · public water use--water supplied from a public-water supply and used for such purposes as firefighting, street washing, and municipal parks and swimming pools. R. rating curve--A drawn curve showing the relation between gage height and discharge of a stream at a given gaging station. reach--any length of a stream or river. The term is often used by hydrologists when they’re referring to a small …

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  • Dictionary of Water Terms - USGS

    Cooling water use—and associated evaporative losses—constitutes the highest consumptive use of water in most of these industries. Water more than any other medium is used for cooling because it is readily available, cheap, has an ability to absorb large amounts of heat per square area, and can be discharged to the public utility sewers, creek or sea.

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  • A Practical Approach to Water Conservation for

    » The benefits of implementing Open Access are reaped by many end users, such as, students, researchers, clinicians, patients, policy makers, and journalists. As long as there is Internet access, people from all over the world, be it an underdeveloped country in Africa, a developing country like India or developed countries such as USA or UK, will have immediate access to latest research findings.

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  • Open Access | Open Access Publications

    2021-2-3 · The general limit for an 8-hour exposure to ozone is a maximum concentration of 0.1 ppm (OSHA ( 4 )). The FDA sets the limit for extended exposure at 0.05 ppm (=50 ppb) (21CFR801.415). Most individuals can detect ozone by smelling at an airborne concentration of about 0.01-0.04 ppm.

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  • Oxygen - Simple English Wikipedia, the free

    In a gas processing plant, propane refrigerant is typically condensed by cooling water or ambient air. For a fixed condensation temperature, the compression horsepower increases with lower refrigerant evaporating temperatures. This is mainly because a lower evaporating temperature also requires a lower evaporating pressure, which requires a higher compression ratio.

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  • Ozone Generation by Ultraviolet Lamps† - Claus -

    2016-1-1 · Biomass/waste gasification is a thermochemical partial oxidation (POX) process in which organic or fossil-based carbonaceous materials are converted into gas consisting mostly of carbon monoxide, hydrogen, and the carbon dioxide in the presence of a gasification agent (air, steam, oxygen, CO 2, or a mixture of these). The gasification process is divided into two main categories, based on …

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  • Refrigerant - an overview | ScienceDirect Topics

    2021-7-29 · Oxygen Not Included is a space-colony simulation video game being developed by Klei Entertainment. Oxygen Not Included allows players to manage their Duplicants and help them dig, build and maintain a subterranean asteroid base. Your Duplicants will need water, warmth, food, and oxygen to keep them alive, and even more than that to keep them happy. Good luck and don't forget your multi …

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  • Dictionary of Water Terms - USGS

    2021-7-21 · Public suppliers provide water for domestic, commercial, thermoelectric power, industrial, and public water users. Most people's household water is delivered by a public water supplier. The systems have at least 15 service connections (such as households, businesses, or schools) or regularly serve at least 25 individuals daily for at least 60 ...

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  • The Emerging Global Water Crisis: Managing Scarcity

    2007-1-1 · Not all of the freshwater resources are fit for human consumption. The World Health Organization estimated in 2000 (WHO/UNICEF, 2000) that 1.1 billion people on the planet lacked access to safe drinking water (), and 2.6 billion did not have sanitation services.Indeed, water pollution is a leading cause of death worldwide, and transmits or supports numerous debilitating diseases to …

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  • A Practical Approach to Water Conservation for

    Cooling water use—and associated evaporative losses—constitutes the highest consumptive use of water in most of these industries. Water more than any other medium is used for cooling because it is readily available, cheap, has an ability to absorb large amounts of heat per square area, and can be discharged to the public utility sewers ...

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  • Composting toilets as a sustainable alternative to

    2014-2-1 · The current water infrastructure in developed countries requires a lot of energy and produces one quality of potable water for all uses, such as drinking, irrigation, and toilet flushing. In the U.S., the water and wastewater treatment systems use approximately 3% of total U.S. electricity . Using energy intensive processes to produce water and ...

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  • Open Access | Open Access Publications

    » The benefits of implementing Open Access are reaped by many end users, such as, students, researchers, clinicians, patients, policy makers, and journalists. As long as there is Internet access, people from all over the world, be it an underdeveloped country in Africa, a developing country like India or developed countries such as USA or UK ...

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  • Refrigerant - an overview | ScienceDirect Topics

    Kamil Kaygusuz, in Encyclopedia of Energy, 2004. 2.4.1 Direct Expansion SAHP. Refrigerant-filled, two-phase solar collectors have been used during recent years as alternatives to conventional air or water collectors.The working fluid in these collectors undergoes a liquid-to-vapor transformation, and the absorbed solar energy is manifested as the latent heat of vaporization.

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  • Energy and the Environment - ScienceDirect

    2016-1-1 · While most of such systems are based on the principle of water falling from dams, some of them generate electricity through water flowing down rivers (run-of-the-river electricity) . Hydroelectric power, using the potential energy of rivers, now supplies 17.5% of the world's electricity (99% in Norway, 57% in Canada, 55% in Switzerland, 40% in ...

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  • Underground coal gasification: From fundamentals to ...

    2013-2-1 · Underground coal gasification (UCG) is a promising option for the future use of un-worked coal. UCG permits coal to be gasified in situ within the coal seam, via a matrix of wells. The coal is ignited and air is injected underground to sustain a fire, which is essentially used to “mine” the coal and produce a combustible synthetic gas which ...

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  • Energies | Free Full-Text | Application and Design

    With the constant increase in energy demand, using renewable energy has become a priority. Geothermal energy is a widely available, constant source of renewable energy that has shown great potential as an alternative source of energy in achieving global energy sustainability and environment protection. When exploiting geothermal energy, whether is for heating or cooling buildings or …

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  • Water Hyacinth - an overview | ScienceDirect Topics

    2014-10-2 · Water hyacinth (E. crassipes) is one of the most prominent aquatic weed plant found throughout the tropical and subtropical areas of the world.Hyacinths are one of the most productive photosynthetic plants in the world. It has been estimated that 10 plants could produce 600 000 more during an 8-month growing season and completely cover 0.4 ha of a natural freshwater surface.

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  • Household air pollution and health - WHO | World

    2018-5-8 · Most of these people are poor, and live in low- and middle-income countries. These cooking practices are inefficient, and use fuels and technologies that produce high levels of household air pollution with a range of health-damaging pollutants, including …

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  • Water management: Current and future challenges

    2019-5-25 · Bromophenols produced by marine algae undergo O-methylation to form bromoanisoles (BAs), which are exchanged between water and air. BAs were determined in surface water of the northern Baltic Sea (Gulf of Bothnia, consisting of Bothnian Bay and Bothnian Sea) during 2011–2013 and on a transect of the entire Baltic in September 2013. The abundance decreased in the following …

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  • Air–Water Exchange of Brominated Anisoles in the

    2021-5-11 · Oak Ridge National Laboratory is the largest multi-program science and energy research lab in the U.S. ORNL is managed by UT-Battelle for the U.S. Department of Energy.

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  • Oak Ridge National Laboratory: Solving the Big

    Vector disease control. Vector-borne diseases are most effectively tackled by killing the vectors. Insecticides are often the only practical way to control the insects that spread deadly diseases such as malaria, resulting in an estimated 5000 deaths each day (Ross, 2005).In 2004, Bhatia wrote that malaria is one of the leading causes of morbidity and mortality in the developing world and a ...

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  • Impact of pesticides use in agriculture: their benefits ...

    The Clean Air Group is recognized as a leader in the development of air pollution control technologies. Our line of products includes wet scrubbers, gas absorbers, particulate control devices, and more. All of our equipment is designed to achieve 99.99% efficiency, zero plume, and clean water discharge for almost any hazardous air pollutant.

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  • The Importance of Food pH in Commercial Canning

    SnowPure Water Technologies. based in San Clemente, CALIFORNIA (USA) SnowPure manufactures and supplies ultrapure water and process membrane components, to be integrated by qualified OEMs in over 75 countries around the world. With detailed knowledge of the water and process industries, SnowPure works with our OEMs ...

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  • Air Pollution Control Manufacturers | IQS Directory

    IntechOpen is a leading global publisher of Journals and Books within the fields of Science, Technology and Medicine. We are the preferred choice of over 60,000 authors worldwide.

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  • Overview of Greenhouse Gases | US EPA

    2021-4-14 · Larger emissions of greenhouse gases lead to higher concentrations in the atmosphere. Greenhouse gas concentrations are measured in parts per million, parts per billion, and even parts per trillion. One part per million is equivalent to one drop of water diluted into about 13 gallons of liquid (roughly the fuel tank of a compact car).

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  • Chapter 12: Heating, Air Conditioning, and Ventilating ...

    Chapter 12: Heating, Air Conditioning, and Ventilating. “Our climate is warming at a faster rate than ever before recorded.”. The quotes below provide a profound lesson in the need for housing to provide protection from both the heat and cold.

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  • Hydrogels and Their Role in Biosensing Applications ...

    2021-5-3 · Maintaining their shape while absorbing a large amount of water or aqueous media makes hydrogels the ideal candidate for the encapsulation of drugs, proteins, and other biomolecules. [8-10] Furthermore, the 3D matrix displays a high permeability for small molecules, metabolites, oxygen, and other water-soluble components. These traits and their ...

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  • An overview of the uses of per- and polyfluoroalkyl ...

    Per- and polyfluoroalkyl substances (PFAS) are of concern because of their high persistence (or that of their degradation products) and their impacts on human and environmental health that are known or can be deduced from some well-studied PFAS. Currently, many different PFAS (on the order of several thousan Recent Open Access Articles Environmental exposure and impacts

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  • Air Quality in a Cleaner Energy World | SpringerLink

    2015-3-4 · Water is mainly released to surface water (99.9 %) at the use stage, i.e., cooling water for power production, and at the end-of-life stage as direct water discharge via the sewerage system. Fig. 2 Water flow inventory results: input, output, and consumed volumes of water for a load of laundry washed in France using a detergent produced in Spain

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  • Urban Water Systems | SpringerLink

    Most recently, Hutnak et al. explored the effects of a multiphase (liquid-gas), multicomponent (H 2 O-CO 2) hydrothermal fluid and found that the addition of noncondensible gas enhanced deformation relative to pure water systems . Such studies typically invoke a “one-way” coupling between fluid flow and heat transport and poroelastic ...

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  • Analysis of water use impact assessment methods

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