خيارات البحث
النتائج 231 - 240 من 240
Policies to reduce nitrogen surplus in German agriculture
1994
Isermeyer, Folkhard | Schleef, Karl-Heinrich
Experience with different demonstration plants for an environmental compatible treatment
1994
Weiland, Peter
Review the impact of wetlands and nonpoint source pollution regulations on agricultural land
1994
Hazardous waste | Update on the cost and availability of pollution insurance
1994
Report of the fourth session of the Working Party on Pollution and Fisheries
1994
The Working Party finalized a review of chlorinated hydrocarbon substances in the African aquatic environment; the review is annexed to this report. The Working Group concluded that it had achieved its major goal to evaluate the state of the African aquatic environment and to review major groups of pollutants that could have negative impacts on aquatic life and fishery resources, i.e. organic matter, metals and organochlorine substances. Future studies could concentrate on phosphorus loads causing eutrophication and on the state of specific types of water bodies in Africa. The Working Party discussed its potential role in the preparations for the CIFA Seminar on African inland fisheries, aquaculture and the environment, scheduled for December 1994, and made suggestions for major inputs it could provide to the seminar.
اظهر المزيد [+] اقل [-]Report of the twenty-fourth session of GESAMP
1994
Guidelines for marine environmental assessments
1994
Anthropogenic influences on sediment discharge to the coastal zone and environmental consequences
1994
Combined anaerobic/aerobic treatment of peroxide bleached TMP mill effluent
1994
Driessen, W.J.B.M. | Wasenius, C.O.
BMP assessment model for agricultural NPS pollution | Best management practices assessment model for agricultural nonpoint source pollution
1994
Tanji, Kenneth K. | Helfand, Gloria E. | Larson, Douglas M.
