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Report Year: 2009
Pleasant Creek Lake, Linn County
Carbon Balance Table
Parameter6/23/20097/28/20092009200820072006200520042003200220012000
Alkalinity as CaCO3 (mg/L)150147148.5-131.0145.1130.0128.389.2128.8127.8137.0
Dissolved Organic Carbon (mM)0.380.420.40-0.460.450.550.380.660.72--
Temperature (oC)27.424.626.0-24.724.426.324.323.825.624.325.2
Specific Conductivity (μS/cm)320.0300.0310.00-287.85327.16299.17377.21302.65345.71253.41317.88
pH8.68.38.4-8.58.69.08.88.68.58.78.7
I (Ionic Strength ?)0.05600.05250.0543-0.05040.05730.05240.06600.05300.06050.04430.0556
Dissolved Inorganic Carbon (mM)2.902.902.90-2.542.772.332.411.722.502.432.62
pCO2 (μatm)363639501.2-368.3477.3118.1224.3229.0380.0256.5306.9
Equilibrium CO211.8012.8012.30-12.7612.8712.2212.9313.1712.4313.1612.57
CO2 (μM)11.5822.1216.85-12.9316.414.078.048.4212.649.7810.62
Δ CO2 from Equilibrium-0.2269.3194.55-0.163.54-8.15-4.88-4.750.21-3.37-1.95
       

Contact Limnology Laboratory, Iowa State University