Geographical location

Atmospheric corrosion results from a metal s ambient-temperature reaction, with the earth s atmosphere as the corrosive environment. Atmospheric corrosion is electrochemical in nature, but differs from corrosion in aqueous solutions in that the electrochemical reactions occur under very thin layers of electrolyte on the metal surface. This influences the amount of oxygen present on the metal surface, since diffusion of oxygen from the atmosphere/electrolyte solution interface to the solution/metal interface is rapid. Atmospheric corrosion rates of metals are strongly influenced by moisture, temperature and presence of contaminants (e.g., NaCl, SO2,. ..). Hence, significantly different resistances to atmospheric corrosion are observed depending on the geographical location, whether mral, urban or marine. 

Other appHcations of firefly hioluminescence include measurement of the activity of bacteria in secondary sewage treatment activated sludge (296,297), detection of bacteria in clean rooms and operating rooms, measurement of bacteria in bottled foods, beverages (298), and pharmaceuticals (299), determination of the antimicrobial activity of potential dmgs (300), determination of the viabiHty of seeds (301), and measuring marine biomass concentrations as a function of ocean depth or geographical location (302). 

Joint ventures are recommended if the respective companies have complementary strengths. Eor example, one may have the process, the other the raw materials, a strong position in the market, or an appropriate geographic location. 

R is hydrogen, alkenyl, or alkyne. In remote tropospheric air where NO concentrations ate sometimes quite low, HO2 radicals can react with ozone (HO2 + O3 — HO + 2 O2) and result in net ozone destmction rather than formation. The ambient ozone concentration depends on cloud cover, time of day and year, and geographical location. 

Magnitude of the residue in meat/milk/poultry/eggs (feeding/dermal treatment) Crop field trials (for each crop use, in each geographic location)... 

Geographic location Nameplate capacity, % Capacity used, %... 

Geographical location Chlorohydrin Coproduct—TBA Coproduct—Styrene Total produc-ti capaciP... 

In the United States, kaolin is the principal clay product and about 9 million metric tons were reported mined and processed during 1991 (25). Bentonite production was reported as being 2 million tons for the same year. World production data for clays, often as a function of geographical location, use, or specific producer, are available (26). 

Density. Typical densities for various wastes as found in containers are reported oy source in Table 25-50. Because the densities of solid wastes vaiy markedly with geographical location, season of the year, and length of time in storage, great care should be used in select-ing typical values. 

IR y = total individual risk of fatality at geographical location x,y... 

IR.i.y.i = individual risk of fatality at geographical location x,y from incident outcome case i n = total number of incident outcome cases... 

Fuel costs vaiy widely from one area to another because of the cost of the fuel itself and the cost of transportation. Any meaningful cost comparison between fuels requires current costs based on such factors as the amounts used at a particular geographical location, utilization efficiencies or energy-ratio data for the equipment involved, and the effects of Torm v ue. Although the costs given in Table 27-9 do not apply to specific locations, they give fuel-cost trends. 

Logistics—If a company is geographically located such that it can not meet the desired service level and deliveiy requirements of its customers, tolling may provide a local production and distribution site. Shorter transportation routes for hazardous chemicals or wastes may also be a consideration. 

A method for graphically displaying individual risk results is use of the risk contour, or risk isopleth. If individual risk is defined as the likelihood of someone suffering a specified injury or loss, then individual risk can be calculated at particular geographic locations around the vicinity of a facility or operation. If the individual risk is calculated at many points surrounding the facility, then points of equal risk can be connected to... 

Sulfuric acid (H1SO4) and ammonium bisulfate (NH4HSO4) contribute importantly to ambient acid aerosols, particularly in geographic locations where sulfur-rich coal is used for power plant fuel, such as the eastern United States.Studies on animals and human subjects have shown that H2SO4 and NH4HSO4 alter mucociliary transport in a dose-dependent fashion and... 

It is the determination of volatile organic compounds produced from natural products that requires separation techniques that allow isolation of stereoisomers. The most commonly determined groups are the terpene and sesquiterpene species present in essential oils, which are used as key indicators of biological factors such as the growth season, geographic location, climate, etc. These species are also released directly into the atmosphere by very many plants and trees, and make a substantial contribution to global biogeochemical cycles. 

Ozone is a highly reactive molecule composed of three atoms of oxygen. Ozone concentrations vary by geographical location and by altitude. In addition, ozone exerts a different climate-forcing effect, depending upon altitude. 

Geographical location plant site location, general proximity to other structures and other factors relating to recirculation of exit air back to the inlet of the tower. 

The geographical location as well as atmospheric conditions (moisture, vapors, dust, etc.) in which the motor must operate should be stated, because the manufacturer has experience in a wide variety of conditions and can recommend the type of motor and materials of construction, such as for fan and insulation. The process engineer must specify the nature of the hazard—that is, whether an explosion-proof motor is required. If it is required, the group hazard must also be identified. 

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