Lake Pontchartrain Basin:  Bottom Sediments and Related Environmental Resources

Figure 11. Linear plot of Fe and Zn data (in weight percent).

Lab 1 used a leachate technique, and Lab 2 used a total dissolution technique. Lab 3 data included only Zn. The arrows point to high Zn values at approximate Fe ranges. These high Zn values, along with other anomalous Zn/Fe values shown in the graph, are mainly attributed to influence of pollutants in samples affected by discharge from New Orleans canals.

Linear plot of Fe and Zn data (16651 bytes)


arrow2l.jpg (1149 bytes) Back to Analytical Methods and Quality Control (Normalized Batch Plotting)

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