- 産業: Education
- Number of terms: 13055
- Number of blossaries: 0
- Company Profile:
Founded in 1879 and named after Texas' greatest hero General Sam Houston, Sam Houston State University is public shcool within the Texas state university system and located in Huntsville, Texas.
It's a multicultural institution that offers 79 bachelorette degree programs, 54 masters and five ...
Increase in concentration of DDT, PCB, and other slowly degradable, fat-soluble chemicals in organisms at successively higher levels.
Industry:Chemistry; Weather
Increase in concentration of DDT, PCB, and other slowly degradable, fat-soluble chemicals in organisms at successively higher levels.
Industry:Chemistry; Weather
Increasing the concentration of the trace gases in the air that absorb thermal infrared light, i.e. greenhouse gases, will result in more infrared light redirected to the earth causing an increase in temperatures. `
Industry:Chemistry; Weather
Influence exerted on a habitat or chemical environment by humans. This obliquely refers to the idea of managed environment as opposed to a wild or non-disturbed environment. The variability of assumptions about radiative forcing can cause significant changes in the results from computer models that require an estimate of those values.
Industry:Chemistry; Weather
Instrument designed in the 1930's to be carried into upper atmosphere via balloon to measure temperature, humidity, and barometric pressure; radio transmission is the means of returning data to surface. Resolution can be a little as a few meters of altitude.
Industry:Chemistry; Weather
A mixture of short hydrocarbons with most of the volume being propane and butane. LPG is considered an alternative fuel that burns cleaner than gasoline because of the very short hydrocarbon chains that tend to not produce a high volume of CO<sub>2</sub> (when compared to the energy harvested) or NO<sub>x</sub> radicals. LPG is now being found in the air in the unburned state most likely from leaking pipes and tanks; in this physical state LPG is now being seen a contributor to urban air pollution.
Industry:Chemistry; Weather
A unitless number describing the mean free path length of a particle relative to some characteristic length, often the diameter of the particle. The application of this measurement is applied to the determination of gas behavior to define the extent to which the gas behaves as independent particles.
Industry:Chemistry; Weather
It is an aromatic hydrocarbon occurs naturally at low levels in crude oil and is usually produced in the processes of making gasoline via catalytic reforming. It is a clear, water-insoluble liquid with the smell of paint thinner. The majority of ethyltoluene is used as a petrol constituent in the C9 fraction produced from petroleum refining, which also contains 1,2,4-trimethylbenzene and other trimethylbenzenes (see 1,2,4 trimethylbenzene). 2-Ethyltoluene is also a volatile organic compound VOC which can contribute to the formation of harmful ground level ozone formation. Releases of 2-ethyltoluene are directly to the air from fugitive emissions from petroleum refining, and car exhausts. As a VOC, 2-ethyltoluene can be involved in reactions with other air pollutants that can form ground-level ozone, which can damage crops and materials as well as having negative effects on human health.
Industry:Chemistry; Weather
It is part of humus, and is a mixture of amorphous, polydispersed colloidal, yellow to brown-black organic substances. They are hydrophilic, and high in molecular weights, which range from a few hundreds to thousands of daltons. They have originated from the decomposed, non-humic, organic fraction by "new formation," called humification.
Industry:Chemistry; Weather
It is the product of incomplete combustion and consisting mostly of carbon and small liquid and solid particles. Smoke is primarily caused by the burning of wood, coal, gasoline, or other biomass. Smoke particles are usually less than 1. 0 micrometers in size. Wind intensity, particle size, air temperature, and atmospheric pressure all effect how smoke behaves in the environment.
Industry:Chemistry; Weather
