Haze

Pollution

v • d • e

Air pollution

Acid rain • Air Quality Index • Atmospheric dispersion modeling • Chlorofluorocarbon • Global dimming • Global warming • Haze • Indoor air quality • Ozone depletion • Particulate • Smog

Water pollution

Eutrophication • Hypoxia • Marine pollution • Ocean acidification • Oil spill • Ship pollution • Surface runoff • Thermal pollution • Wastewater • Waterborne diseases • Water quality • Water stagnation

Soil contamination

Bioremediation • Herbicide • Pesticide • Soil Guideline Values (SGVs)

Radioactive contamination

Actinides in the environment • Environmental radioactivity • Fission product • Nuclear fallout • Plutonium in the environment • Radiation poisoning • Radium in the environment • Uranium in the environment

Other types of pollution

Invasive species • Light pollution • Noise pollution • Radio spectrum pollution • Visual pollution

Inter-government treaties

Montreal Protocol • Nitrogen Oxide Protocol • Kyoto Protocol • CLRTAP

Major organizations

DEFRA • EPA • Global Atmosphere Watch • Greenpeace • National Ambient Air Quality Standards

For other uses, see Haze (disambiguation). Pollution is the introduction of contaminants into an environment that causes instability disorder harm or discomfort to the physical systems or living organisms they are in Air pollution is the human introduction into the atmosphere of Chemicals Particulate matter, or Biological materials that cause harm or discomfort Acid rain is Rain or any other form of precipitation that is unusually Acidic It has harmful effects on plants aquatic animals and infastructure The Air Quality Index ( AQI) is a standardized indicator of the Air Quality in a given location Atmospheric dispersion modeling is the mathematical simulation of how air pollutants disperse in the ambient atmosphere. The haloalkanes (also known as halogenoalkanes or alkyl halides) are a group of Chemical compounds consisting of Alkanes such as Methane Global dimming is the gradual reduction in the amount of global direct Irradiance at the Earth 's surface that was observed for several decades after the start of systematic Global warming is the increase in the average measured temperature of the Indoor Air Quality (IAQ deals with the content of interior air that could affect health and comfort of building occupants Ozone depletion describes two distinct but related observations a slow steady decline of about 4 percent per decade in the total amount of Ozone in Earth's Particulates, alternatively referred to as particulate matter (PM or fine particles, are tiny particles of solid or liquid suspended in a gas Smog is a kind of Air pollution; the word "smog" is a Portmanteau of Smoke and Fog. Water pollution is the contamination of Water bodies such as Lakes Rivers Oceans and Groundwater caused by human activities Eutrophication is an increase in chemical Nutrients -- typically compounds containing Nitrogen or Phosphorus -- in an Ecosystem, and may occur For other uses of the term "hypoxia" see Hypoxia. Hypoxia or oxygen depletion is a phenomenon that occurs in aquatic environments Marine pollution is the harmful effect caused by the entry into the ocean of chemicals particles, or Plastic debris. For the fictional character see Oil Slick (Transformers. An oil spill is the release of a Liquid Petroleum Hydrocarbon into Ship pollution is the pollution of air and Water by Shipping. Surface runoff is a term used to describe when soil is infiltrated to full capacity and excess Water, from Rain, Snowmelt, or other sources flows Thermal pollution is a Temperature change in natural bodies of water caused by human influence Distinguish from Wastwater (a lake in the Lake District in northwest England Waterborne diseases are caused by Pathogenic Microorganisms which are directly transmitted when contaminated Drinking water is consumed Water quality is the physical chemical and biological characteristics of Water in relationship to a set of standards Water stagnation occurs when Water stops flowing Stagnant water can be a major Environmental hazard. Soil contamination is caused by the presence of man-made chemicals or other alteration in the natural soil environment Bioremediation can be defined as any process that uses Microorganisms Fungi, green plants or their Enzymes to return the natural environment altered A herbicide is used to kill unwanted Plants Selective herbicides kill specific targets while leaving the desired Crop relatively unharmed A pesticide is a substance or mixture of substances used to kill a pest. Radioactive contamination is the uncontrolled distribution of radioactive material in a given environment Actinides in the environment refer to the sources environmental behaviour and effects of Actinides in the environment. Environmental Radioactivity is the study of radioactive materials in the Human environment. Fission products are the atomic fragments left after a large nucleus fissions. Fallout is the residual radiation hazard from a Nuclear explosion, so named because it "falls out" of the atmosphere into which it is spread during the explosion Plutonium in the environment is an article which is part of the Actinides in the environment series Radiation poisoning, also called " radiation sickness " or a " creeping dose " is a form of damage to organ tissue due to excessive exposure to This is a subpage of Environmental radioactivity. Radium Radium in quack medicine See the story of Eben Byers for details of one very nasty case Uranium in the environment, this page is about the Science of Uranium in the environment and in animals (including humans Introduced species|Weed Invasive species is a phrase with several definitions Light pollution, also known as photopollution or luminous pollution, is excess or obtrusive Light created mainly by Humans Among other effects Noise pollution (or environmental noise) is displeasing human- or machine-created sound that disrupts the activity or balance of human or animal life Radio spectrum pollution is the straying of waves in the radio and Electromagnetic spectrums outside their allocations that cause problems for some activities Visual pollution is the term given to unattractive or unnatural (human-made visual elements of a vista a Landscape, or any other thing that a person might not want to For other similarly-named agreements see Montreal Convention (disambiguation. Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution Concerning the Control of Emissions of Nitrogen Oxides or Their Transboundary Fluxes, opened for signature on The Kyoto Protocol is a protocol to the international Framework Convention on Climate Change with the objective of reducing Greenhouse gases in an effort The Convention on Long-Range Transboundary Air Pollution, often abbreviated as Air Pollution or CLRTAP, is intended to protect the human environment against Air This is a list of environmental organizations. See also Environmental organization Intergovernmental organizations International organizations The Department for Environment Food and Rural Affairs ( Defra) is the United Kingdom government department responsible for environmental protection The Global Atmosphere Watch (GAW is a worldwide system established by the World Meteorological Organization a United Nations agency to monitor trends in the Greenpeace, originally known as the Greenpeace Foundation, was founded in Vancouver, British Columbia, Canada in 1972 The National Ambient Air Quality Standards (NAAQS are standards established by the United States Environmental Protection Agency that apply for outdoor Air Environmental science is the study of interactions among physical chemical and biological components of the environment. See also Nature The natural environment, commonly referred to simply as the environment, is a terminology that is comprised of all living and

Los Angeles skyline, showing haze.

Haze is traditionally an atmospheric phenomenon where dust, smoke and other dry particles obscure the clarity of the sky. Temperature and layers The temperature of the Earth's atmosphere varies with altitude the mathematical relationship between temperature and altitude varies among five The WMO manual of codes includes a classification of horizontal obscuration into categories of fog, ice fog, steam fog, mist, haze, smoke, volcanic ash, dust, sand and snow. Fog is a cloud that is in contact with the ground Stratus clouds are usually the only clouds that touch the ground Fog is a cloud that is in contact with the ground Stratus clouds are usually the only clouds that touch the ground Fog is a cloud that is in contact with the ground Stratus clouds are usually the only clouds that touch the ground Mist is a phenomenon of small droplets suspended in Air. It can occur as part of natural Weather or Volcanic activity and is common in cold air above Smoke is the collection of airborne solid and liquid Particulates and Gases ref> ''Smoke Production and Properties'' - SFPE Handbook of Fire Protection Engineering Vog is a Portmanteau of the words "volcanic" and " Smog," and a volcanic smog is formed when Sulfur dioxide and other Dust is a general name for minute Solid particles with Diameters less than 500 micrometers. Sand is a naturally occurring Granular material composed of finely divided rock and Mineral particles "Snowfall" redirects here For other uses see Snow (disambiguation or Snowfall (disambiguation. ^[1] Sources for haze particles include farming (ploughing in dry weather), traffic, industry, forest fires and peat field fire. Seen from afar (e. g. approaching airplane), haze appears brownish, while mist is bluish-grey. Mist is a phenomenon of small droplets suspended in Air. It can occur as part of natural Weather or Volcanic activity and is common in cold air above Whereas haze formation is a phenomenon of dry air, mist formation is a phenomenon of humid air. However, haze particles may act as condensation nuclei for later mist droplet formation.

Haze is also use to describe turbidity in clear glass or plastic as a percent value, or turbidity in beer or wine. Turbidity is the cloudiness or haziness of a fluid caused by individual particles ( suspended solids) that are generally invisible to the Naked eye Beer is the world's oldest and most widely consumed Alcoholic beverage and the third most popular drink overall after water and tea Wine is an Alcoholic beverage made from the fermentation of Grape juice

1 Air pollution
2 Obscuration
3 Turbidity
4 References
5 See also
6 External links

Air pollution

Main article: smog

Haze over Kuala Lumpur

Haze often occurs when dust and smoke particles accumulate in relatively dry air. Smog is a kind of Air pollution; the word "smog" is a Portmanteau of Smoke and Fog. When weather conditions block the dispersal of smoke and other pollutants they concentrate and form a usually low-hanging shroud that impairs visibility and may become a respiratory health threat. In Meteorology, visibility is a measure of the Distance at which an object or light can be clearly discerned In Animal physiology, respiration is the transport of Oxygen from the outside air to the cells within tissues and the transport of Carbon dioxide Health is a state of complete physical mental and social well-being and not merely the absence of disease or infirmity Industrial pollution can result in dense haze, which is known as smog. Smog is a kind of Air pollution; the word "smog" is a Portmanteau of Smoke and Fog.

Since 1991 haze has been a particularly acute problem in Southeast Asia. In response the ASEAN countries agreed on a Regional Haze Action Plan (1997) and later signed the Agreement on Transboundary Haze Pollution (2002). The Association of Southeast Asian Nations, commonly referred to as ASEAN, ˈɑːsiːɑːn AH-see-ahn in English (the Official language The ASEAN Agreement on Transboundary Haze Pollution is an Environmental agreement signed in 2002 between all ASEAN nations to bring Haze Under the agreement the ASEAN secretariat hosts a co-ordination and support unit. ^[2]

Obscuration

Haze causes issues in the area of terrestrial photography, where the penetration of large amounts of dense atmosphere may be necessary to image distant subjects. This results in the visual effect of a loss of contrast in the subject, due to the effect of light scattering through the haze particles. About CONTRAST CONTRAST is a Multidisciplinary alliance bringing together key skills and expertise to generate new knowledge on biological environmental Scattering is a general physical process whereby some forms of Radiation, such as Light, Sound or moving particles for example are forced to deviate from Particulates, alternatively referred to as particulate matter (PM or fine particles, are tiny particles of solid or liquid suspended in a gas Unlike other atmospheric effects such as cloud and fog, haze is spectrally selective: shorter (blue) wavelengths are scattered more, and longer (red/infrared) wavelengths are scattered less. Infrared ( IR) radiation is Electromagnetic radiation whose Wavelength is longer than that of Visible light, but shorter than that of For this reason many super-telephoto lenses often incorporate yellow filters or coatings to enhance image contrast. An optical filter is a device which selectively transmits light having certain properties (often a particular range of Wavelengths that is range of Colours

Infrared (IR) imaging may also be used to penetrate haze over long distances, with a combination of IR-pass optical filters (such as the Wratten 89B) and IR-sensitive detector. Wratten numbers are a labeling system for Optical filters usually for photographic use.

Turbidity

With production of plastic films haze has technical significance as the percentage of light that is deflected more than 2. 5° from the incoming light direction. ^[3]

References

External links

National Pollutant Inventory - Particulate matter fact sheet

Aerial perspective or atmospheric perspective is the effect on the appearance of an object by the Atmosphere between it and a viewer (or the technique of depicting Arctic haze is the Phenomenon of a visible reddish-brown Haze in the Atmosphere at high Latitudes in the Arctic due to Air The Saharan Air Layer (SAL is an intensely dry warm and sometimes Dust -laden layer of the Atmosphere which often overlies the cooler more-humid surface air of the Smog is a kind of Air pollution; the word "smog" is a Portmanteau of Smoke and Fog.

Dictionary

-noun

Very fine solid particles (smoke, dust) or liquid droplets (moisture) suspended in the air, slightly limiting visibility.
The degree of cloudiness or turbidity in a clear glass or plastic, measured in percent.
(brewing, countable) Any substance causing turbidity in beer or wine.
Mental confusion; the state of being in a haze.

-verb

To perform an unpleasant initiation ritual upon a usually non-consenting individual, especially freshmen to a closed community such as a college or military unit.
To oppress or harass by forcing to do hard and unnecessary work.

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