| Titre de série : |
United States Géological Survey water-Supply paper, 22-34 - J |
| Titre : |
Nitrogen dynamics in the tidal freshwater potomac river, Maryland and Virginia, water years 1979-1981. A water quality study of the tidal potamac river and estuary |
| Type de document : |
texte imprimé |
| Auteurs : |
Shultz, D. J. |
| Mention d'édition : |
United States Goverment printing office |
| Editeur : |
United States Goverment printing Office |
| Année de publication : |
1989 |
| ISBN/ISSN/EAN : |
CI-06667 |
| Note générale : |
On an annual basis, river-supplied nitrate is the predominant form of nitrigen supplied to the tidal potomac river from external sources. Much of the nitrate is associated with high flows that have rapid transit times though the tidal river. The blue plains sewage-treatment plant (STP) at Washington, D.C. is the greatest source of all nitrogen species during low-flow periods. Prior to the fall of 1980, ammonia concentrations in depth-integrated, composited water samples were greatest during sommer periods near Alexandria, Va., because of loading from the nearly blue plans TP and reducing river discharge. |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Qualité de l'eau Eau douce Analyse chimique Sédimentation Hydrologie |
| Index. décimale : |
551.48 Hydrologie : |
| Résumé : |
On an annual basis, river-supplied nitrate is the predominant form of nitrigen supplied to the tidal potomac river from external sources. Much of the nitrate is associated with high flows that have rapid transit times though the tidal river. The blue plains sewage-treatment plant (STP) at Washington, D.C. is the greatest source of all nitrogen species during low-flow periods. Prior to the fall of 1980, ammonia concentrations in depth-integrated, composited water samples were greatest during sommer periods near Alexandria, Va., because of loading from the nearly blue plans TP and reducing river discharge. |
| Note de contenu : |
On an annual basis, river-supplied nitrate is the predominant form of nitrigen supplied to the tidal potomac river from external sources. Much of the nitrate is associated with high flows that have rapid transit times though the tidal river. The blue plains sewage-treatment plant (STP) at Washington, D.C. is the greatest source of all nitrogen species during low-flow periods. Prior to the fall of 1980, ammonia concentrations in depth-integrated, composited water samples were greatest during sommer periods near Alexandria, Va., because of loading from the nearly blue plans TP and reducing river discharge. |
United States Géological Survey water-Supply paper, 22-34 - J. Nitrogen dynamics in the tidal freshwater potomac river, Maryland and Virginia, water years 1979-1981. A water quality study of the tidal potamac river and estuary [texte imprimé] / Shultz, D. J. . - United States Goverment printing office . - United States Goverment printing Office, 1989. ISSN : CI-06667 On an annual basis, river-supplied nitrate is the predominant form of nitrigen supplied to the tidal potomac river from external sources. Much of the nitrate is associated with high flows that have rapid transit times though the tidal river. The blue plains sewage-treatment plant (STP) at Washington, D.C. is the greatest source of all nitrogen species during low-flow periods. Prior to the fall of 1980, ammonia concentrations in depth-integrated, composited water samples were greatest during sommer periods near Alexandria, Va., because of loading from the nearly blue plans TP and reducing river discharge. Langues : Anglais ( eng)
| Mots-clés : |
Qualité de l'eau Eau douce Analyse chimique Sédimentation Hydrologie |
| Index. décimale : |
551.48 Hydrologie : |
| Résumé : |
On an annual basis, river-supplied nitrate is the predominant form of nitrigen supplied to the tidal potomac river from external sources. Much of the nitrate is associated with high flows that have rapid transit times though the tidal river. The blue plains sewage-treatment plant (STP) at Washington, D.C. is the greatest source of all nitrogen species during low-flow periods. Prior to the fall of 1980, ammonia concentrations in depth-integrated, composited water samples were greatest during sommer periods near Alexandria, Va., because of loading from the nearly blue plans TP and reducing river discharge. |
| Note de contenu : |
On an annual basis, river-supplied nitrate is the predominant form of nitrigen supplied to the tidal potomac river from external sources. Much of the nitrate is associated with high flows that have rapid transit times though the tidal river. The blue plains sewage-treatment plant (STP) at Washington, D.C. is the greatest source of all nitrogen species during low-flow periods. Prior to the fall of 1980, ammonia concentrations in depth-integrated, composited water samples were greatest during sommer periods near Alexandria, Va., because of loading from the nearly blue plans TP and reducing river discharge. |
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