خيارات البحث
النتائج 141 - 150 من 286
Ion exchange for pollution control.
1979
Calmon Calvin | Gold Harris
A field estimate of SO2 deposition velocities to rapidly growing soybeans
1979
Sprugel, D.G. | Miller, J.E. (Argonne National Lab., Ill. (USA). Ecological Sciences Div., Radiological and Environmental Research Div.)
Management of the soil-plant-atmosphere complex
1979
Hatfield, J.L. (California Univ., Davis (USA). Dept. of Land, Air and Water Resources)
Heavy metals in bulk precipitation and transplanted Hypogymnia physodes and Dicranoweisia cirrata in the vicinity of a Danish steelworks
1979
Pilegaard, K. (Copenhagen Univ. (Denmark). Inst. of Plant Ecology)
Water usage and microclimate
1979
Felton, C.M.M. (San Jose State Univ., Cal. (USA). Dept. of Meteorology)
[Measurements of the pollutant emission from moving sources]
1979
Sibenaler, E. | Bulthe, M. | Eesbeek, M. van (Koninklijke Militaire School, Brussel (Belgium). Lab. Transport-Mechanika)
[Teledetection [for pollution measurements]]
1979
Gysegem, A. van (Koninklijk Meteorologisch Int. van Belgie, Brussel)
Oil slicks and hydrocarbons in sea water
1979
Nemirovskaya, Inna A
Surface and upper-layer pollution of seas and oceans by crude oil and refinery products is under study by investigators in many countries. The Intergovernmental Oceanographic Commission (IOC) and World Meteorological Organization (WMO) have prepared an international experimental project that is to be carried out within the framework of the Integrated Global Oceanic Station System (IGOSS). The purpose of the project is to prepare a picture of distribution and dynamics of oil pollution. Parameters to be observed include: oil patches (slicks), floating lumps of tar on the surface, and hydrocarbons emulsified and dissolved in water. Cruise 22 of R/V Akademik Kurchatov took the ship through regions being the most suitable for pollution studies. They were conducted from March through June 1976. On the cruise, oil slicks were observed visually by a procedure recommended by the international program. Areas of the slicks were determined from speed of the ship and time required to cross them. Surface samples were taken along the path of the ship for determination of concentrations of dissolved and emulsified hydrocarbons in water. In addition, samples were taken from deep water by a 7-liter vinyl water bottle at 17 stations. Hydrocarbons present in the samples were extracted immediately with carbon tetrachloride. Final determination of hydrocarbons was made by infrared spectrophotometry. This method is currently accepted in the Soviet Union in an arbitration capacity for determination of petroleum products dissolved and emulsified in sea water. Infrared spectrophotometry is used to determine hydrocarbons containing methyl and methylene groups, but they are not identified as to origin.
اظهر المزيد [+] اقل [-]Industrial pollution control
1979-9999
Middlebrooks, E. Joe
The Multistate Atmospheric Power Production Pollution Study -MAP3S
1979
