| Titre de série : |
U.S. Geological survey water-supply paper, 2271 |
| Titre : |
Pesticides in the nation's rivers 1975 -1980, and implications for furture momitoring |
| Type de document : |
texte imprimé |
| Auteurs : |
Gilliom, R. J. ; Alexander, B. R. ; Smith, R. A. |
| Mention d'édition : |
U.S Geological Survey, Federal Center |
| Editeur : |
U.S Geological survey, Federal Center |
| Année de publication : |
1985 |
| ISBN/ISSN/EAN : |
CI-04983 |
| Note générale : |
The paper is about water samples were taken four times per year and bed sediment samples two times per year dicring 1975-80 at 160 to 180 stations on major rivers of the United states. Samples were analyzed for 18 insecticides and 4 herbicides, which together accounted for about one third of the total amount of all pecticides applied to major crops during 1975-80. Fewer than 10 per cent of almost 3 000 water samples and fewer than 20 per cent of almost of any of the campounds. the patterns of detection result from a combination of widely variable detection capibilities, chemical properties, and use... |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Pesticide Analyse chimique Insecticide Agriculture Chimie Hydrologie fluviale Rvière |
| Index. décimale : |
551.48 Hydrologie : |
| Résumé : |
The paper is about water samples were taken four times per year and bed sediment samples two times per year dicring 1975-80 at 160 to 180 stations on major rivers of the United states. Samples were analyzed for 18 insecticides and 4 herbicides, which together accounted for about one third of the total amount of all pecticides applied to major crops during 1975-80. Fewer than 10 per cent of almost 3 000 water samples and fewer than 20 per cent of almost of any of the campounds. the patterns of detection result from a combination of widely variable detection capibilities, chemical properties, and use... |
| Note de contenu : |
The paper is about water samples were taken four times per year and bed sediment samples two times per year dicring 1975-80 at 160 to 180 stations on major rivers of the United states. Samples were analyzed for 18 insecticides and 4 herbicides, which together accounted for about one third of the total amount of all pecticides applied to major crops during 1975-80. Fewer than 10 per cent of almost 3 000 water samples and fewer than 20 per cent of almost of any of the campounds. the patterns of detection result from a combination of widely variable detection capibilities, chemical properties, and use... |
U.S. Geological survey water-supply paper, 2271. Pesticides in the nation's rivers 1975 -1980, and implications for furture momitoring [texte imprimé] / Gilliom, R. J. ; Alexander, B. R. ; Smith, R. A. . - U.S Geological Survey, Federal Center . - U.S Geological survey, Federal Center, 1985. ISSN : CI-04983 The paper is about water samples were taken four times per year and bed sediment samples two times per year dicring 1975-80 at 160 to 180 stations on major rivers of the United states. Samples were analyzed for 18 insecticides and 4 herbicides, which together accounted for about one third of the total amount of all pecticides applied to major crops during 1975-80. Fewer than 10 per cent of almost 3 000 water samples and fewer than 20 per cent of almost of any of the campounds. the patterns of detection result from a combination of widely variable detection capibilities, chemical properties, and use... Langues : Anglais ( eng)
| Mots-clés : |
Pesticide Analyse chimique Insecticide Agriculture Chimie Hydrologie fluviale Rvière |
| Index. décimale : |
551.48 Hydrologie : |
| Résumé : |
The paper is about water samples were taken four times per year and bed sediment samples two times per year dicring 1975-80 at 160 to 180 stations on major rivers of the United states. Samples were analyzed for 18 insecticides and 4 herbicides, which together accounted for about one third of the total amount of all pecticides applied to major crops during 1975-80. Fewer than 10 per cent of almost 3 000 water samples and fewer than 20 per cent of almost of any of the campounds. the patterns of detection result from a combination of widely variable detection capibilities, chemical properties, and use... |
| Note de contenu : |
The paper is about water samples were taken four times per year and bed sediment samples two times per year dicring 1975-80 at 160 to 180 stations on major rivers of the United states. Samples were analyzed for 18 insecticides and 4 herbicides, which together accounted for about one third of the total amount of all pecticides applied to major crops during 1975-80. Fewer than 10 per cent of almost 3 000 water samples and fewer than 20 per cent of almost of any of the campounds. the patterns of detection result from a combination of widely variable detection capibilities, chemical properties, and use... |
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