Major Ions Nutrients and Trace Elements in the Mississippi River Near Thebes, Illionois July through September 1993

U.S. Geological Survey, Circular 1120-D

by Howard E. Taylor, Ronald C. Antweiler, Terry I . Brinton, David A. Roth, and John A.Moody

Table of Contents

Foreword

Abstract

Introduction

Study methods

Sample collection and processing procedures

Laboratory analysis techniques

Occurrence and transport of constituents

Occurrence of major ions, nutrients, and trace elements

Transport of constituents

Summary

References cited

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