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Topic: Nitrogen monoxide

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	CHEMICAL HAZARD ALERT NOTICE 28 - NITROGEN MONOXIDE
		Nitrogen monoxide (sometimes known as nitric oxide) is a colourless gas with a sharp, sweet odour.
		Nitrogen monoxide is used in the manufacture of nitric acid and ammonium nitrate fertilisers.
		Nitrogen monoxide is also produced in combustion processes and is present in the exhaust gases from motor vehicles.
	www.hse.gov.uk /pubns/chan28.htm (799 words)

	Nitrogen pentoxide (PIM 283)
		Nitrogen dioxide and nitric oxide are the principal hazards.
		Nitrogen oxides are largely absorbed by and react with pulmonary alveolar structures and terminal respiratory bronchioles.
		Milne JEH (1969) Nitrogen dioxide inhalation and bronchiolitis obliterans.
	www.inchem.org /documents/pims/chemical/pimg017.htm (2621 words)

	gg94: chapter 6: criteria pollutants [w51]
		Carbon monoxide, nitrogen oxides, and nonmethane volatile organic compounds (NMVOCs) do not contribute directly to global warming, but they may do so indirectly insofar as they react chemically in the atmosphere in ways that increase greenhouse gas concentrations, most notably, concentrations of ozone.
		Nitrogen oxides do, however, affect global climate in their role as catalysts in the formation of tropospheric ozone and through interaction in methane oxidation.
		The major sources of nitrogen oxide emissions are fossil fuel combustion in electric generating stations and in highway vehicles.
	www.eia.doe.gov /oiaf/1605/87-92rpt/chap6.html (1039 words)

	Highbeam Encyclopedia - Search Results for nitrogen
		nitrogen cycle the continuous flow of nitrogen through the biosphere by the processes of nitrogen fixation, ammonification (decay), nitrification, and denitrification.
		Nitrogen remobilization during grain filling in wheat: genotypic and environmental effects.
		Nitrogen distribution in soil density fractions and its relation to nitrogen mineralisation under different tillage systems.
	www.encyclopedia.com /searchpool.asp?target=nitrogen (591 words)

	Coalition for Clean Air - Air Pollution - Pollutants & Health Effects
		Nitrogen monoxide (NO) and nitrogen dioxide (NO2) are the two forms of nitrogen oxide found in the atmosphere.
		Nitrogen dioxide has been shown to irritate lung tissue, cause bronchitis and pneumonia, and reduce resistance to respiratory infections.
		Carbon monoxide is a colorless, odorless gas that is produced by burning organic matter such as oil, natural gas, fuel, wood, and charcoal.
	www.coalitionforcleanair.org /air-pollution-pollutants.html (1237 words)

	PA DEP BAQ - Air Monitoring - The Principal Pollutants
		Carbon monoxide is a byproduct of the incomplete burning of fuels.
		Peak carbon monoxide concentrations typically occur during the colder months of the year when automotive emissions are greater and nighttime inversion conditions are more frequent.
		Nitrogen dioxide (NO) is a highly toxic, reddish brown gas that is formed through the oxidation of nitric oxide (NO) emitted primarily from the combustion of fuels in stationary or transportation sources.
	www.dep.state.pa.us /dep/deputate/airwaste/aq/aqm/pollutants.htm (1199 words)

	ATSDR - MMG: Nitrogen Oxides
		Nitrogen dioxide is a colorless to brown liquid at room temperature and a reddish-brown gas above 70ºF poorly soluble in water.
		Nitrogen dioxide is a corrosive substance that forms nitric and nitrous acids upon contact with water; it is more acutely toxic than nitric oxide, except at lethal concentrations when nitric oxide may kill more rapidly.Nitric oxide is a potent and rapid inducer of methemoglobinemia.
		The diagnosis of acute nitrogen oxide toxicity is primarily based on respiratory symptoms and establishing a history of exposure to nitrogen oxides.
	www.atsdr.cdc.gov /MHMI/mmg175.html (5072 words)

	Nitrogen oxides
		Nitrogen dioxide is highly toxic and irritates both the skin and the mucous membranes.
		Nitrogen dioxide is decomposed by sunlight into nitrogen monoxide and atomic oxygen which reacts immediately with atmospheric oxygen molecules, forming ozone.
		As nitrogen oxides and their related products are highly toxic to humans and hazardous to the environment, their emission should be reduced as far as possible e.g.
	www2.gtz.de /uvp/publika/English/vol353.htm (567 words)

	Are catalytic converters good for the environment? Sorcha Mc Closkey - K Skills - Loreto College, Coleraine - Y13 Feb ...
		Carbon monoxide is a toxic gas, which reduces the ability of haemoglobin, the oxygen carrying molecule in the blood, to transport oxygen.
		Nitrogen dioxide also contributes to the formation of acid rain, when it reacts with water to form nitrous and nitric acids.
		Nitrogen dioxide is also responsible for catalysing the oxidation of sulphur dioxide in the atmosphere, which is another reason why emissions of nitrogen dioxide should be curbed.
	www.lcc.ukf.net /kskills/catconv.htm (1002 words)

	Synthesis gas - Patent 4671893
		nitrogen, to give a gas suitable for use as a synthesis gas by a wet carbon dioxide removal process, and the resultant carbon dioxide depleted gas is subjected to pressure swing adsorption (PSA) to remove some, or all, of the intermediate boiling gas and the bulk of any residual carbon dioxide.
		hydrogen in admixture with nitrogen, involves initial reaction of a carbonaceous feedstock with steam and/or oxygen, catalytic shift reaction to convert carbon monoxide to carbon dioxide, removal of carbon dioxide in an absorbent liquid, and removal of traces of carbon oxides by methanation or by a wash with liquid nitrogen.
		The amount of nitrogen removed in the pressure swing adsorption stage should therefore be adjusted to compensate for the nitrogen lost in such a purge and the extent, if any, of hydrogen recovery and recycle from the purge.
	www.freepatentsonline.com /4671893.html (5560 words)

	nitrogen oxide
		Nitrogen monoxide and nitrogen dioxide contribute to air pollution.
		Nitrogen monoxide was discovered during the 1980s to act as a chemical messenger in small quantities within the human body, despite being toxic at higher concentrations and its rapid reaction with oxygen.
		The medical condition of septic shock is linked to overproduction by the body of nitrogen monoxide.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0026553.html (367 words)

	The Air Quality in Danish Urban Areas (Site not responding. Last check: 2007-10-09)
		The pollutants are carbon monoxide, nitrogen oxides, particulates, and toxic compounds in the particulates (heavy metals and organics) and in the gaseous phase (organics).
		The nitrogen monoxide concentration is much lower behind the buildings along the street than at the curb side, where as nitrogen dioxide concentration is much more evenly distributed in the center of the urban areas.
		The nitrogen dioxide concentration in urban air is not reduced correspondingly because it is formed by oxidation of nitrogen monoxide.
	www.ehponline.org /members/1994/Suppl-4/jensen-full.html (3995 words)

	The Health Effects of Air Pollutions on Children
		Carbon monoxide (CO), a colorless, odorless gas, is a byproduct of combustion.
		Nitrogen dioxide is the most important nitrogen oxide compound with respect to acute adverse health effects.
		Studies with laboratory animals have indeed shown that if mice are exposed first to nitrogen dioxide and later to bacteria at a level that would not infect a healthy control animal, their normal lung defense mechanisms are suppressed and the bacteria are able to infect the host.
	www.aqmd.gov /forstudents/health_effects_on_children.html (5952 words)

	Pluto
		Nitrogen tends to form crystals in laboratories on Earth.
		Because nitrogen has a transition temperature (meaning it changes phases at this temperature) of 35.6 K, the nitrogen ice may sometimes change into liquid state when Pluto reaches its perihelion epoch.
		The composition of these dark areas are not known, but are believed to be made up of refractory organic solids produced by photochemistry of the ice molecules and atmosphere and material from outside sources and bombardment of cosmic rays.
	library.thinkquest.org /C002416/pluto/index.htm (709 words)

	Chapter 6. Criteria Pollutants
		Although emissions of nitrogen oxides are now higher than in 1970, the level of emissions has been relatively stable in the 1990s (Table 34).
		Nitrogen oxide emissions are related to air-fuel mixes and combustion temperatures during the burning of fuels.
		Although total emissions of nitrogen oxide during 1995 (19.7 million metric tons) were about 5.8 percent lower than their 1990 levels, they were approximately 5.6 percent greater than the 1970 levels.
	www.eia.doe.gov /oiaf/1605/gg97rpt/chap6.html (1006 words)

	Air Pollution - Measures to improve air quality : Part 3
		The term "nitrogen oxides" (NOx) usually refers to nitrogen monoxide and nitrogen dioxide.
		The nitrogen in the combustion air reacts with oxygen at high temperature to form nitrogen monoxide.
		Nitrogen dioxide is one of the major pollutants in the air.
	library.thinkquest.org /C007231/measures_part_3.htm (354 words)

	Reaction of Nitrogen Monoxide with Oxygen, form Nitric Acid
		Oxygen reacts with the nitrogen monoxide to form nitrogen dioxide, which reacts with water to form nitric acid.
		When the stopper is loosened, air diffuses into the flask and oxygen reacts with the nitrogen monoxide to form nitrogen dioxide, a brown gas.
		When the stopper is loosened and the nitrogen monoxide is allowed to react with oxygen from the air, brown nitrogen dioxide gas is formed in a synthesis reaction.
	jchemed.chem.wisc.edu /JCESoft/CCA/CCA3/MAIN/RAINN1O2/PAGE1.HTM (469 words)

	Outdoor Air Quality - Nitrogen Oxides
		Nitrogen oxides, or NOx, is the generic term for a group of highly reactive gases, all of which contain nitrogen and oxygen in varying amounts.
		Nitrogen oxides form when fuel is burned at high temperatures, as in a combustion process.
		Increased nitrogen loading in water bodies, particularly coastal estuaries, upsets the chemical balance of nutrients used by aquatic plants and animals.
	www.purdue.edu /dp/envirosoft/child/airq/nox.htm (1038 words)

	Nitrogen Oxides Microscale Gas Chemistry Experiments (Site not responding. Last check: 2007-10-09)
		Nitrogen dioxide has an irritating odor and is a poisonous gas.
		Either liquid nitrogen or a dry ice/alcohol bath is needed as a source of extreme cold for this experiment.
		Nitrogen dioxide is a brown-red gas that exists in equilibrium with its dimer, N
	mattson.creighton.edu /NOx/index.html (2818 words)

	Pollution
		Even though vast quantities of carbon monoxide enter the atmosphere each year (147 million tons in the US alone) the majority of the emissions are due to natural causes instead of anthropogenic, human causes.
		Eighty percent of the carbon monoxide that is emitted by humans is by transportation (mostly by gasoline powered vehicles).
		Nitrogen dioxide is generally not considered a pollutant because it is not toxic and usually not produced by humans.
	www.umich.edu /~gs265/society/pollution.htm (4478 words)

	Composition containing an iron complexing protein and a precursor of nitrogen monoxide metabolism and/or a chemical ...
		The pharmaceutical composition or food supplement as claimed in claim 1, wherein said precursor of nitrogen monoxide metabolism anti the chemical donor of nitrogen monoxide are used at unit doses of between 0.001 mg and 1 mg.
		The pharmaceutical composition or food supplement as claimed in claim 11, wherein said precursor of nitrogen monoxide metabolism and the chemical donor of nitrogen monoxide are used at unit doses of between 0.01 mg and 0.1 mg.
		The pharmaceutical composition or food supplement as claimed in claim 1, wherein said iron-complexing protein/precursor of nitrogen monoxide metabolism and/or said iron-complexing protein/chemical donor of nitrogen monoxide weight ratio is between 1/1 and 10/1.
	www.freepatentsonline.com /6984624.html (3245 words)

	Nitrogen - Wikipedia, the free encyclopedia
		Nitrogen (IPA: /ˈnaɪtrədʒən/) is a chemical element which has the symbol N and atomic number 7.
		Nitrogen is a nonmetal, with an electronegativity of 3.0.
		Nitrogen is created as part of the fusion processes in stars, and is estimated to be the 7th most abundant chemical element (by mass) in our universe.
	en.wikipedia.org /wiki/Nitrogen (3016 words)

	Test Method: 1998-08-21 Gaseous Criteria Pollutant Monitoring
		Carbon Monoxide - A colorless,odorless gas, carbon monoxide is a byproduct of incomplete combustion and is emitted directly into the atmosphere, primarily from motor vehicle exhaust.
		Carbon monoxide concentrations typically peak nearest a source, such as roadways, and decrease rapidly as distance from the source increases.
		At ambient concentration levels nitrogen dioxide is an irritating gas that may constrict the airways of asthmatics and increase the susceptibility to infection in the general population.
	www.arb.ca.gov /aaqm/criteria.htm (884 words)

	Nitrogen in Pluto's Atmosphere by Ken Croswell
		In the weak sunlight illuminating Pluto, some of the nitrogen ice must vaporize to produce a nitrogen atmosphere around the planet.
		Nitrogen has a much greater vapor pressure than methane, and the vapor pressure indicates the ease with which a solid can become gaseous at a given temperature.
		Carbon monoxide has a vapor pressure intermediate between that of nitrogen and methane, so Owen and his colleagues believe that carbon monoxide is the second most abundant gas in Pluto's atmosphere.
	kencroswell.com /NitrogenInPlutosAtmosphere.html (587 words)

	Indoor Skating Rinks
		Air Sample shall mean the result of any single measurement of the level of carbon monoxide or nitrogen dioxide in an indoor skating rink taken in accordance with the requirements of 105 CMR 675.000.
		Exhaust shall mean the emissions of gases and vapors containing carbon monoxide or nitrogen dioxide produced as a result of the use of combustible fuels in connection with the operation of combustion resurfacing equipment.
		The requirements of 105 CMR 675.016©(3), (4) and (5) may be satisfied, in the case of a new indoor skating rink or an indoor skating rink not in operation at the time of application, within 30 days of issuance by the board of a certificate of approval.
	www.mahb.org /stateregs/skatingrinks.htm (4654 words)

	Nitric oxide - Wikipedia, the free encyclopedia
		Quenching of surface radicals with nitric oxide results in incorporation of nitrogen, which can be quantified by means of X-ray photoelectron spectroscopy.
		A biologically important reaction of nitric oxide is S-nitrosation (or S-nitrosylation), the covalent attachment of a nitrogen monoxide group to the thiol side chain of cysteine within proteins.
		The nitric oxide reacts with the ozone to produce oxygen and nitrogen dioxide.
	en.wikipedia.org /wiki/Nitrogen_monoxide (1304 words)

	Hess' Law Worksheet
		The nitrogen gas burns in air to form nitrogen monoxide gas.
		The nitrogen monoxide gas combines with more oxygen to form nitrogen dioxide gas.
		The nitrogen dioxide gas combines with water in the air to form nitric acid and nitrogen moxoxide gas.
	homepage.mac.com /sklemmer/Honors/hesswk.htm (567 words)

	"What You Should Know About Combustion Appliances and Indoor Air Pollution"Template \| Publications \| Indoor Air \| Air \| ...
		Some of the common pollutants produced from burning these fuels are carbon monoxide, nitrogen dioxide, particles, and sulfur dioxide.
		Breathing high levels of nitrogen dioxide causes irritation of the respiratory tract and causes shortness of breath.
		Your doctor may take a blood sample to measure the level of carbon monoxide in your blood if he or she suspects carbon monoxide poisoning.
	www.epa.gov /iaq/pubs/combust.html (4089 words)

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