ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - ACID RAIN ppt

... of the lake acidification and that the acid rain is pri- marily the result of long-range transport of pollutants from the heavily industrialized areas of northern Europe. The rain and snow in ... a summary of the causes and effects of acidic deposition and a comparison of the costs and effectiveness of alternative emission control scenarios. Since adverse...

Ngày tải lên: 10/08/2014, 20:20

... Chloroform 6 7-6 6-3 6.0 D007 Chromium 744 0-4 7-3 5.0 D023 o-Cresol 9 5-4 8-7 200.0* D024 m-Cresol 10 8-3 9-4 200.0* D025 p-Cresol 10 6-4 4-5 200.0* D026 Cresol — 200.0* D016 2,4-D 9 4-7 5-7 10.0 D027 1,4-Dichlorobenzene ... 10 6-4 6-7 7.5 D028 1,2-Dichloroethane 10 7-0 6-2 0.5 D029 1,1-Dichloroethylene 7 5-3 5-4 0.7 D030 2,4-Dinitrotoluene 12 1-1 4-2...

Ngày tải lên: 10/08/2014, 20:20

... near-infrared, and mid-infrared portions of the electromagnetic spectrum. The advantages of video systems include low cost, near-real-time image availability, and the ability to collect and ... electro- magnetic radiation in selected bands of the spectrum from approximately 0.3 to 14 m m, including the visible and near-, mid-, and thermal-infrared regions. These individua...

Ngày tải lên: 10/08/2014, 20:20

... (NTIS PB 8 0-1 13459). EPA-670/ 2-7 3-0 77, “Combined Sewer Overflow Seminar Papers,” Novem- ber 1973, USEPA and NYS-DEC (NTIS PB 231 836). EPA-670/ 2-7 4-0 49, “Microstraining and Disinfection of Combined ... retention and removal. Several DMHRF pilot-study installations have been demonstrated for control of CSO pollution. These facilities have used 15. 2-, 30....

Ngày tải lên: 10/08/2014, 20:20

... THE PROBLEM Acid rain is the general and now popular term that pertains to both acid rain and acid snow. This article discusses the physical and chemical aspects of the acid rain phenomenon, ... The first term on the right-hand side represents the rate of formation of particles of volume v due to coagulation, and the second term that rate of loss of par...

Ngày tải lên: 01/04/2014, 11:44

... The first term on the right-hand side represents the rate of formation of particles of volume v due to coagulation, and the second term that rate of loss of particles of volume v by coagulation ... light-scattering properties of an individual particle are a function of its size, shape and refractive index. The intensity of scattered light is a function of the scat...

Ngày tải lên: 10/08/2014, 20:20

... competition. (HbCO) (HbO) 210 PC O PO 22  (HbCO) and (HbO 2 ) are the concentrations of carboxyhemo- globin and oxyhemoglobin, and PCO and PO 2 are the partial pressures of carbon monoxide and oxygen. Inspiration of air containing ... presence of different con- centrations of ambient carbon monoxide and the effect of various levels of activity on the rate of u...

Ngày tải lên: 10/08/2014, 20:20

... of time of day, over city and country. 50 40 30 20 05101520 Time of day 100-T, (%) FIGURE 7 Concentrations of air pollution (100-T%), as function of time of day, on clear day (solid line) and ... (m) A - EXTREMELY UNSTABLE B - MODERATELY UNSTABLE C - SLIGHTLY UNSTABLE D - NEUTRAL E - SLIGHTLY STABLE F - MODERATELY STABLE A B C D E F A - EXTREMELY...

Ngày tải lên: 10/08/2014, 20:20

... methods for control of selenium and its compounds. However, based on the properties and on the methods of recovery and purification of selenium wet scrubbers and high- voltage electrostatic ... temperature and other factors. c) Danders—(small particulate organic materials), including feathers of fowl and hair of animals and house dust. 2) Man-made sources: a) Fl...

Ngày tải lên: 10/08/2014, 20:20

... to apply his law of the minimum as rigidly as some have interpreted it, and we can best envision nutrient limitation from the standpoint of the balance and interac- tions of the whole nutrient ... considered a matter of simple academic interest, but of unquestioned importance for survival. The productivity and harvest of most of the world’s terrestrial and aquatic env...

Ngày tải lên: 10/08/2014, 20:20