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timothy c willoughby

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NitrificationStability of nitrate-ion concentrations in simulated deposition samples used for quality-assurance activities by the U.S. Geological SurveyTimothy C. Willoughby

Stability of nitrate-ion concentrations in simulated deposition samples used for quality-assurance activities by the U.S. Geological Survey

Timothy C. Willoughby · Books and Open-File Reports Section [distributor]

15 sayfa · 1989

Acid deposition / Nitrification

Sedimentation and depositionQuality of wet deposition in the Grand Calumet River watershed, northwestern Indiana, April 29, 1997-April 28, 1998Timothy C. Willoughby

Quality of wet deposition in the Grand Calumet River watershed, northwestern Indiana, April 29, 1997-April 28, 1998

Timothy C. Willoughby · U.S. Geological Survey, Branch of Information Services [distributor]

55 sayfa · 2000

Air / Atmospheric deposition / Measurement / Pollution / Sedimentation and deposition

Sedimentation and depositionQuality of wet deposition in the Grand Calumet River watershed, northwestern Indiana, June 30, 1992-August 31, 1993Timothy C. Willoughby

Quality of wet deposition in the Grand Calumet River watershed, northwestern Indiana, June 30, 1992-August 31, 1993

Timothy C. Willoughby · Earth Science Information Center, Open-File Reports Section [distributor]

55 sayfa · 1995

Quality assurance / Quality control / Sedimentation and deposition

Water qualityAn estimate of chemical loads from ground water to the Grand Calumet River and Indiana Harbor Canal, northwestern IndianaTimothy C. Willoughby

An estimate of chemical loads from ground water to the Grand Calumet River and Indiana Harbor Canal, northwestern Indiana

Timothy C. Willoughby · Branch of Information Services [distributor]

52 sayfa · 2001

Groundwater flow / Pollution / Total maximum daily load / Water / Water quality

PollutionQuality of wet deposition in the Grand Calumet River Watershed, Northwestern Indiana, October 17, 1995-November 12, 1996Timothy C. Willoughby

Quality of wet deposition in the Grand Calumet River Watershed, Northwestern Indiana, October 17, 1995-November 12, 1996

Timothy C. Willoughby · U.S. Dept. of the Interior, U.S. Geological Survey

47 sayfa · 2000

Air / Atmospheric deposition / Measurement / Pollution

AnalysisChemical stability of wet-deposition samples subsampled daily for one weekTimothy C. Willoughby

Chemical stability of wet-deposition samples subsampled daily for one week

Timothy C. Willoughby · Books and Open-File Reports Section [distributor]

19 sayfa · 1990

Acid deposition / Acid precipitation (Meteorology) / Acid rain / Analysis