Record Display for the EPA National Library Catalog
RECORD NUMBER: 114 OF 988| Main Title | Blackduck Lake, Beltrami County, Minnesota. | |||||||||||
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| CORP Author | Pacific Northwest Environmental Research Lab., Corvallis, Oreg.;National Environmental Research Center, Corvallis, Oreg.;National Environmental Research Center, Las Vegas, Nev.;Minnesota Pollution Control Agency, Minneapolis.;Minnesota National Guard, Minneapolis. | |||||||||||
| Year Published | 1974 | |||||||||||
| Report Number | Working Paper-86; | |||||||||||
| Stock Number | PB-240 224 | |||||||||||
| Additional Subjects | Water pollution ; Blackduck Lake ; Surveys ; Inorganic phosphates ; Inorganic nitrates ; Bioassay ; Primary biological productivity ; Chemical properties ; Water quality ; Drainage ; Nutrients ; Sources ; Tables(Data) ; Minnesota ; Eutrophication ; Water quality data ; Beltrami County(Minnesota) | |||||||||||
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| Collation | 33p | |||||||||||
| Abstract | Annual total phosphorus and total nitrogen loadings to the lake were estimated and subdivided according to either point or non-point source origin. An assessment of the lake's trophic condition and limiting nutrient is also provided. All data collected by the U.S.E.P.A. National Eutrophication Survey during the one year study of the lake and its tributaries are included in the report. |