Results 251 to 260 of about 504,881 (310)
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Personal sampler for nitrogen dioxide
American Industrial Hygiene Association Journal, 1976A new type of personal sampler for gases in air, originally reported from this laboratory, has been adapted to measurement of NO2. The sampler depends on the transfer of NO2 by diffusion to a triethanolamine coated collector at the sealed end of a tube; the open end of the tube is exposed to the test environment. The devices are accurate, light, simple
E D, Palmes +3 more
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The Pathobiochemistry of Nitrogen Dioxide
Biological Chemistry, 2002Nitrogen dioxide (*NO2) is an oxidizing free radical which can initiate a variety of destructive pathways in living systems, and several diseases are suspected to be connected with both exogenously and endogenously formed *NO2. Peroxynitrite (ONOO-/ONOOH) is believed to be an important endogenous source of *NO2 radicals, but other sources, among them ...
Michael, Kirsch +3 more
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The Journal of Chemical Thermodynamics, 2001
Abstract A calorimetric technique is described for measuring the enthalpy of dissociation liberated from solid hydrates. In this study, the enthalpies of dissociation were determined at T = 273.65 K andp = 0.1 MPa for simple and mixed hydrates of carbon dioxide, nitrogen, (carbon dioxide + nitrogen), and (carbon dioxide + nitrogen ...
Kang, SP, Lee, H Lee, Huen, Ryu, BJ
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Abstract A calorimetric technique is described for measuring the enthalpy of dissociation liberated from solid hydrates. In this study, the enthalpies of dissociation were determined at T = 273.65 K andp = 0.1 MPa for simple and mixed hydrates of carbon dioxide, nitrogen, (carbon dioxide + nitrogen), and (carbon dioxide + nitrogen ...
Kang, SP, Lee, H Lee, Huen, Ryu, BJ
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Photolysis of nitrogen dioxide
The Journal of Chemical Physics, 1973Relative quantum yields for the photolysis of NO2 to give NO have been measured at 5 or 10 nm intervals in the range of 295 to 445 nm, and also at several longer wavelengths. The behavior of the quantum yield as a function of photon energy can be separated into three distinct wavelength regions.
I. T. N. Jones, Kyle D. Bayes
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Southern Hemisphere Nitrogen Dioxide
1985Results from ground based observations of stratospheric nitrogen dioxide from two Southern Hemisphere sites are compared. The measurement method used is long path absorption spectroscopy of scattered sunlight in the wavelength range 435–450nm. At a midlatitude site in New Zealand (45°S) column amounts of NO2 are dominated by photochemistry whereas in a
R. L McKenzie, P. V. Johnston
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Nitrogen Dioxide Sensing Technologies
2021The harmful impacts of nitrogen dioxide (NO2) include acid rain, respiratory diseases, allergy and photochemical smog. These also causes throat, eye and nose problems, cough, nausea and tiredness in extremely low concentrations (<10 ppm). So, detection and the sensing of NO2 gas is considered as one of the most important detecting techniques ...
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American Industrial Hygiene Association Journal, 1958
J R, KINOSIAN, B R, HUBBARD
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J R, KINOSIAN, B R, HUBBARD
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Particles Matter, Nitrogen Dioxide and Sulfur Dioxide
2019Indoor air quality is a growing concern in the recent years as we spend the majority of time indoors. According to the Exposure Factors Handbook, adults in the USA spend approximately 80% of their time indoors. Among all the indoor air pollutants, particulate matter (PM), sulfur dioxide (SO2), and nitrogen dioxide (NO2) have been considered as the ...
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The marine nitrogen cycle: new developments and global change
Nature Reviews Microbiology, 2022David A Hutchins, Douglas G Capone
exaly