| D010126 |
Ozone |
The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE). |
Ground Level Ozone,Low Level Ozone,Tropospheric Ozone,Level Ozone, Ground,Level Ozone, Low,Ozone, Ground Level,Ozone, Low Level,Ozone, Tropospheric |
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| D010316 |
Particle Size |
Relating to the size of solids. |
Particle Sizes,Size, Particle,Sizes, Particle |
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| D005031 |
Ethylenethiourea |
A degradation product of ethylenebis(dithiocarbamate) fungicides. It has been found to be carcinogenic and to cause THYROID hyperplasia. |
Imidazolidinethione,2-Mercaptoimidazoline,Imidazolidine-2-thione,2 Mercaptoimidazoline |
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| D012996 |
Solutions |
The homogeneous mixtures formed by the mixing of a solid, liquid, or gaseous substance (solute) with a liquid (the solvent), from which the dissolved substances can be recovered by physical processes. (From Grant & Hackh's Chemical Dictionary, 5th ed) |
Solution |
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| D013058 |
Mass Spectrometry |
An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers. |
Mass Spectroscopy,Spectrometry, Mass,Spectroscopy, Mass,Spectrum Analysis, Mass,Analysis, Mass Spectrum,Mass Spectrum Analysis,Analyses, Mass Spectrum,Mass Spectrum Analyses,Spectrum Analyses, Mass |
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| D013997 |
Time Factors |
Elements of limited time intervals, contributing to particular results or situations. |
Time Series,Factor, Time,Time Factor |
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| D014835 |
Volatilization |
A phase transition from liquid state to gas state, which is affected by Raoult's law. It can be accomplished by fractional distillation. |
Vaporization,Volatility |
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| D052638 |
Particulate Matter |
Particles of any solid substance, generally under 30 microns in size, often noted as PM30. There is special concern with PM1 which can get down to PULMONARY ALVEOLI and induce MACROPHAGE ACTIVATION and PHAGOCYTOSIS leading to FOREIGN BODY REACTION and LUNG DISEASES. |
Ultrafine Fiber,Ultrafine Fibers,Ultrafine Particle,Ultrafine Particles,Ultrafine Particulate Matter,Air Pollutants, Particulate,Airborne Particulate Matter,Ambient Particulate Matter,Fiber, Ultrafine,Particle, Ultrafine,Particles, Ultrafine,Particulate Air Pollutants,Particulate Matter, Airborne,Particulate Matter, Ambient,Particulate Matter, Ultrafine |
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