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Corn response to six annual Cu-enriched pig manure applications to three soils.
1988
Gettier S.W. | Martens D.C. | Kornegay E.T.
The use of duckweed for wastewater treatment.
1988
Zirschky J. | Reed S.C.
Overhauling health effects perspectives.
1988
Schwebach G.H. | Cafaro D. | Egan J. | Grimes M. | Michael G.
Utilisation d'un bio-indicateur vegetal pour la mesure de l'ozone en montagne Texto completo
1988
Garrec, J.P. | Rosé, Christophe
Pelagic tar in the Mediterranean Sea Texto completo
1988
Golik, A. | Weber, Kurt | Salilhoglu, I. | Yilmaz, A. | Loizides, L.
Water pollution | Stronger enforcement needed to improve compliance at federal facilities | Federal compliance with Clean Water Act
1988
In response to a congressional request, GAO assessed: (1) federal facilities' compliance with the Water Pollution Control Act; and (2) the Environmental Protection Agency's (EPA) and states' oversight and enforcement of the facilities' compliance with the act. | GAO found that: (1) most federal facilities did not comply with National Pollutant Discharge Elimination System (NPDES) program priority requirements; (2) in fiscal years 1986 and 1987, federal facilities' noncompliance rate was twice that of private industrial facilities; (3) more than 40 percent of federal facilities had a significant noncompliance problem for more than 1 year; (4) Navy and Department of Energy facilities had the highest noncompliance rates; (5) agency and facility officials cited lengthy budget and procurement processes as factors affecting facilities' noncompliance; (6) EPA and states failed to take timely enforcement actions on 31 of 46 facilities without permits; and (7) EPA did not exercise its authority in 18 instances of untimely state enforcement.
Mostrar más [+] Menos [-]The effects of simulated acid precipitation on leaf litter quality and the growth of a detritivore in a buffered lotic system
1988
Garden, A. | Davies, R.W. (Department of Biological Sciences, University of Calgary, Alta. T2N 1N4 (Canada))
The effects of 2,4-D herbicide and organophosphorus insecticides on growth, photosynthesis, and chlorophyll a synthesis of Chlamydomonas reinhardtii (mt +)
1988
Wong, P.K. | Chang, L. (Department of Biology, The Chinese University of Hong Kong, Shatin, NT (Hong Kong))
Evidence from nitrogen fertilisation in the forests of Germany
1988
Kenk, G. | Fischer, H. (Forest Research Institute Baden-Wuerttemberg, 7800 Freiburg (Germany, F.R.))
