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Aerosol

Index Aerosol

An aerosol is a suspension of fine solid particles or liquid droplets, in air or another gas. [1]

107 relations: Acid rain, Aerodynamic aerosol classifier, Aerogel, Aerosol mass spectrometry, Aerosol spray, Air pollution, Airborne disease, Arithmetic mean, Atmosphere of Earth, Atomizer nozzle, Bacteria, Bioaerosol, Breathing, Bronchiole, Brownian motion, Buoyancy, Calibration, Cloud, Combustion, Condensation, Condensation particle counter, Cunningham correction factor, Cyclonic separation, Deodorant, Deposition (aerosol physics), Differential equation, Diffusion, Dispersity, Ecosystem, Einstein relation (kinetic theory), Electric charge, Electrical aerosol spectrometer, Electronic cigarette, Electrospray, Equation solving, Evaporation, Exponential decay, Exponential distribution, Exudate, Fly ash, Fog, Frederick G. Donnan, Fuel injection, Function (mathematics), Gas, Geyser, Haze, Histogram, Human impact on the environment, Human mouth, ..., Human nose, Hydrochloric acid, Hydrogen sulfide, Imaging spectroscopy, Inorganic chemistry, International Organization for Standardization, Ion-mobility spectrometry, Kelvin equation, Knudsen number, Larynx, Lidar, Limit (mathematics), Liquid, Log-normal distribution, Mass concentration (chemistry), Mass diffusivity, Mean free path, Membrane technology, Moment (mathematics), Nebulizer, Normal distribution, Number density, Organic chemistry, Paint, Partial pressure, Particle mass analyser, Particle-size distribution, Particulates, Pharynx, Pollen, Pulmonary alveolus, Raoult's law, Relative humidity, Remote sensing, Respiratory disease, Reynolds number, Skewness, Smoke, Sol (colloid), Solid, Solution, Soot, Spore, Standard deviation, Steam, Stokes's law, Sulfuric acid, Sun photometer, Suspension (chemistry), Terminal velocity, Trachea, United States Environmental Protection Agency, Vapor, Vapor pressure, Viscosity, Weibull distribution, World War I. Expand index (57 more) »

Acid rain

Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).

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Aerodynamic aerosol classifier

Aerodynamic aerosol classifier is a measurement technique for classifying aerosol particles according to their aerodynamic diameters.

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Aerogel

Aerogel is a synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas.

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Aerosol mass spectrometry

Aerosol mass spectrometry is the application of mass spectrometry to aerosol particles.

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Aerosol spray

Aerosol spray is a type of dispensing system which creates an aerosol mist of liquid particles.

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Air pollution

Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's atmosphere.

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Airborne disease

An airborne disease is any disease that is caused by pathogens that can be transmitted through the air.

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Arithmetic mean

In mathematics and statistics, the arithmetic mean (stress on third syllable of "arithmetic"), or simply the mean or average when the context is clear, is the sum of a collection of numbers divided by the number of numbers in the collection.

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Atmosphere of Earth

The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.

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Atomizer nozzle

An atomizer nozzle can take many forms.

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Bacteria

Bacteria (common noun bacteria, singular bacterium) is a type of biological cell.

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Bioaerosol

Bioaerosols (short for biological aerosols) are a subcategory of particles released from terrestrial and marine ecosystems into the atmosphere.

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Breathing

Breathing (or respiration, or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly by bringing in oxygen and flushing out carbon dioxide.

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Bronchiole

The bronchioles or bronchioli are the passageways by which air passes through the nose or mouth to the alveoli (air sacs) of the lungs, in which branches no longer contain cartilage or glands in their submucosa.

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Brownian motion

Brownian motion or pedesis (from πήδησις "leaping") is the random motion of particles suspended in a fluid (a liquid or a gas) resulting from their collision with the fast-moving molecules in the fluid.

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Buoyancy

In physics, buoyancy or upthrust, is an upward force exerted by a fluid that opposes the weight of an immersed object.

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Calibration

Calibration in measurement technology and metrology is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy.

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Cloud

In meteorology, a cloud is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body.

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Combustion

Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.

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Condensation

Condensation is the change of the physical state of matter from gas phase into liquid phase, and is the reverse of vapourisation.

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Condensation particle counter

A condensation particle counter or CPC is a particle counter that detects and counts aerosol particles by first enlarging them by using the particles as nucleation centers to create droplets in a supersaturated gas.

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Cunningham correction factor

In fluid dynamics, the Cunningham correction factor or Cunningham slip correction factor is used to account for noncontinuum effects when calculating the drag on small particles.

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Cyclonic separation

A cyclonic separation is a method of removing particulates from an air, gas or liquid stream, without the use of filters, through vortex separation.

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Deodorant

A deodorant is a substance applied to the body to prevent body odor caused by the bacterial breakdown of perspiration in armpits, feet, and other areas of the body.

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Deposition (aerosol physics)

In aerosol physics, deposition is the process by which aerosol particles collect or deposit themselves on solid surfaces, decreasing the concentration of the particles in the air.

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Differential equation

A differential equation is a mathematical equation that relates some function with its derivatives.

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Diffusion

Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random motion of the molecules or atoms.

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Dispersity

A monodisperse, or uniform, polymer is composed of molecules of the same mass.

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Ecosystem

An ecosystem is a community made up of living organisms and nonliving components such as air, water, and mineral soil.

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Einstein relation (kinetic theory)

In physics (specifically, in kinetic theory) the Einstein relation (also known as Einstein–Smoluchowski relation) is a previously unexpected connection revealed independently by William Sutherland in 1904, Albert Einstein in 1905, and by Marian Smoluchowski in 1906 in their papers on Brownian motion.

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Electric charge

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.

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Electrical aerosol spectrometer

Electrical aerosol spectrometry (EAS) is a technique for measurement of the number-size distribution of aerosol using a combination of electrical charging and multiple solid state electrometer detectors.

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Electronic cigarette

An electronic cigarette or e-cigarette is a handheld electronic device that simulates the feeling of tobacco smoking.

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Electrospray

The name electrospray is used for an apparatus that employs electricity to disperse a liquid or for the fine aerosol resulting from this process.

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Equation solving

In mathematics, to solve an equation is to find its solutions, which are the values (numbers, functions, sets, etc.) that fulfill the condition stated by the equation, consisting generally of two expressions related by an equality sign.

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Evaporation

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gaseous phase before reaching its boiling point.

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Exponential decay

A quantity is subject to exponential decay if it decreases at a rate proportional to its current value.

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Exponential distribution

No description.

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Exudate

An exudate is a fluid emitted by an organism through pores or a wound, a process known as exuding.

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Fly ash

Fly ash, also known as "pulverised fuel ash" in the United Kingdom, is a coal combustion product that is composed of the particulates (fine particles of burned fuel) that are driven out of coal-fired boilers together with the flue gases.

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Fog

Fog is a visible aerosol consisting of minute water droplets or ice crystals suspended in the air at or near the Earth's surface.

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Frederick G. Donnan

Frederick George Donnan CBE FRS FRSE (6 September 1870 – 16 December 1956) was an Irish physical chemist who is known for his work on membrane equilibria, and commemorated in the Donnan equilibrium describing ionic transport in cells.

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Fuel injection

Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector.

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Function (mathematics)

In mathematics, a function was originally the idealization of how a varying quantity depends on another quantity.

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Gas

Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).

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Geyser

A geyser is a spring characterized by intermittent discharge of water ejected turbulently and accompanied by steam.

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Haze

Haze is traditionally an atmospheric phenomenon in which dust, smoke, and other dry particulates obscure the clarity of the sky.

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Histogram

A histogram is an accurate representation of the distribution of numerical data.

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Human impact on the environment

Human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environments and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans, including global warming, environmental degradation (such as ocean acidification), mass extinction and biodiversity loss, ecological crises, and ecological collapse.

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Human mouth

In human anatomy, the mouth is the first portion of the alimentary canal that receives food and produces saliva.

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Human nose

The human nose is the protruding part of the face that bears the nostrils.

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Hydrochloric acid

Hydrochloric acid is a colorless inorganic chemical system with the formula.

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Hydrogen sulfide

Hydrogen sulfide is the chemical compound with the chemical formula H2S.

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Imaging spectroscopy

In imaging spectroscopy (also hyperspectral or spectral imaging) each pixel of an image acquires many bands of light intensity data from the spectrum, instead of just the three bands of the RGB color model.

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Inorganic chemistry

Inorganic chemistry deals with the synthesis and behavior of inorganic and organometallic compounds.

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International Organization for Standardization

The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.

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Ion-mobility spectrometry

Ion-mobility spectrometry (IMS) is an analytical technique used to separate and identify ionized molecules in the gas phase based on their mobility in a carrier buffer gas.

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Kelvin equation

The Kelvin equation describes the change in vapour pressure due to a curved liquid–vapor interface, such as the surface of a droplet.

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Knudsen number

The Knudsen number (Kn) is a dimensionless number defined as the ratio of the molecular mean free path length to a representative physical length scale.

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Larynx

The larynx, commonly called the voice box, is an organ in the top of the neck of tetrapods involved in breathing, producing sound, and protecting the trachea against food aspiration.

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Lidar

Lidar (also called LIDAR, LiDAR, and LADAR) is a surveying method that measures distance to a target by illuminating the target with pulsed laser light and measuring the reflected pulses with a sensor.

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Limit (mathematics)

In mathematics, a limit is the value that a function (or sequence) "approaches" as the input (or index) "approaches" some value.

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Liquid

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure.

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Log-normal distribution

In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally distributed.

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Mass concentration (chemistry)

In chemistry, the mass concentration is defined as the mass of a constituent divided by the volume of the mixture: For a pure chemical the mass concentration equals its density (mass divided by volume); thus the mass concentration of a component in a mixture can be called the density of a component in a mixture.

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Mass diffusivity

Diffusivity or diffusion coefficient is a proportionality constant between the molar flux due to molecular diffusion and the gradient in the concentration of the species (or the driving force for diffusion).

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Mean free path

In physics, the mean free path is the average distance traveled by a moving particle (such as an atom, a molecule, a photon) between successive impacts (collisions), which modify its direction or energy or other particle properties.

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Membrane technology

Membrane technology covers all engineering approaches for the transport of substances between two fractions with the help of permeable membranes.

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Moment (mathematics)

In mathematics, a moment is a specific quantitative measure, used in both mechanics and statistics, of the shape of a set of points.

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Nebulizer

In medicine, a nebulizer or nebuliser (see spelling differences) is a drug delivery device used to administer medication in the form of a mist inhaled into the lungs.

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Normal distribution

In probability theory, the normal (or Gaussian or Gauss or Laplace–Gauss) distribution is a very common continuous probability distribution.

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Number density

In physics, astronomy, chemistry, biology and geography, number density (symbol: n or ρN) is an intensive quantity used to describe the degree of concentration of countable objects (particles, molecules, phonons, cells, galaxies, etc.) in physical space: three-dimensional volumetric number density, two-dimensional areal number density, or one-dimensional line number density.

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Organic chemistry

Organic chemistry is a chemistry subdiscipline involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.

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Paint

Paint is any liquid, liquefiable, or mastic composition that, after application to a substrate in a thin layer, converts to a solid film.

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Partial pressure

In a mixture of gases, each gas has a partial pressure which is the hypothetical pressure of that gas if it alone occupied the entire volume of the original mixture at the same temperature.

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Particle mass analyser

Particle mass analyser is a measurement technique for classifying aerosol particles according to their mass-to-charge ratio.

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Particle-size distribution

The particle-size distribution (PSD) of a powder, or granular material, or particles dispersed in fluid, is a list of values or a mathematical function that defines the relative amount, typically by mass, of particles present according to size.

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Particulates

Atmospheric aerosol particles, also known as atmospheric particulate matter, particulate matter (PM), particulates, or suspended particulate matter (SPM) are microscopic solid or liquid matter suspended in Earth's atmosphere.

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Pharynx

The pharynx (plural: pharynges) is the part of the throat that is behind the mouth and nasal cavity and above the esophagus and the larynx, or the tubes going down to the stomach and the lungs.

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Pollen

Pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells).

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Pulmonary alveolus

A pulmonary alveolus (plural: alveoli, from Latin alveolus, "little cavity") is a hollow cavity found in the lung parenchyma, and is the basic unit of ventilation.

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Raoult's law

Raoult's law (law) is a law of thermodynamics established by French chemist François-Marie Raoult in 1887.

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Relative humidity

Relative humidity (RH) is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature.

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Remote sensing

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to on-site observation.

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Respiratory disease

Respiratory disease is a medical term that encompasses pathological conditions affecting the organs and tissues that make gas exchange possible in higher organisms, and includes conditions of the upper respiratory tract, trachea, bronchi, bronchioles, alveoli, pleura and pleural cavity, and the nerves and muscles of breathing.

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Reynolds number

The Reynolds number is an important dimensionless quantity in fluid mechanics used to help predict flow patterns in different fluid flow situations.

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Skewness

In probability theory and statistics, skewness is a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean.

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Smoke

Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained or otherwise mixed into the mass.

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Sol (colloid)

A sol is a colloidal solution suspension of very small solid particles in a continuous liquid medium.

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Solid

Solid is one of the four fundamental states of matter (the others being liquid, gas, and plasma).

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Solution

In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances.

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Soot

Soot is a mass of impure carbon particles resulting from the incomplete combustion of hydrocarbons.

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Spore

In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions.

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Standard deviation

In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

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Steam

Steam is water in the gas phase, which is formed when water boils.

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Stokes's law

In 1851, George Gabriel Stokes derived an expression, now known as Stokes's law, for the frictional force – also called drag force – exerted on spherical objects with very small Reynolds numbers in a viscous fluid.

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Sulfuric acid

Sulfuric acid (alternative spelling sulphuric acid) is a mineral acid with molecular formula H2SO4.

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Sun photometer

A sun photometer is a type of photometer conceived in such a way that it points at the sun.

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Suspension (chemistry)

In chemistry, a suspension is a heterogeneous mixture that contains solid particles sufficiently large for sedimentation.

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Terminal velocity

Terminal velocity is the highest velocity attainable by an object as it falls through a fluid (air is the most common example).

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Trachea

The trachea, colloquially called the windpipe, is a cartilaginous tube that connects the pharynx and larynx to the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.

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United States Environmental Protection Agency

The Environmental Protection Agency is an independent agency of the United States federal government for environmental protection.

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Vapor

In physics a vapor (American) or vapour (British and Canadian) is a substance in the gas phase at a temperature lower than its critical temperature,R.

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Vapor pressure

Vapor pressure or equilibrium vapor pressure is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system.

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Viscosity

The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress.

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Weibull distribution

No description.

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World War I

World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.

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Accumulation mode, Aerodynamic Diameter, Aerodynamic diameter, Aerosol science, Aerosols, Aerosoul, Air droplet, Air droplets, Aitken mode, Coarse mode, Condensation (aerosol dynamics), Condensation in aerosol dynamics, Liquid aerosol, Liquid in gas, Solid aerosol.

References

[1] https://en.wikipedia.org/wiki/Aerosol

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