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Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

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Table <strong>of</strong> Contents<br />

PREFACE......................................................................................................................................iii<br />

DISCLAIMER ................................................................................................................................ v<br />

List <strong>of</strong> Tables ................................................................................................................................. xi<br />

List <strong>of</strong> Figures..............................................................................................................................xiii<br />

Authors, Contributors, and Reviewers.......................................................................................... xv<br />

U.S. Environmental Protection Agency Project Team <strong>for</strong> Development<br />

<strong>of</strong> <strong>Air</strong> <strong>Quality</strong> <strong>Criteria</strong> <strong>for</strong> <strong>Lead</strong>.............................................................................................. xxi<br />

U.S. Environmental Protection Agency Science Advisory Board (SAB)<br />

Staff Office Clean <strong>Air</strong> Scientific Advisory Committee (CASAC).......................................xxiii<br />

Abbreviations and Acronyms ..................................................................................................... xxv<br />

AX7. CHAPTER 7 ANNEX (ENVIRONMENTAL EFFECTS OF LEAD).................... AX7-1<br />

AX7.1 TERRESTRIAL ECOSYSTEMS............................................................ AX7-1<br />

AX7.1.1 Methodologies Used in Terrestrial Ecosystems<br />

Research............................................................................... AX7-1<br />

AX7.1.1.1 <strong>Lead</strong> Isotopes and Apportionment................. AX7-1<br />

AX7.1.1.2 Speciation in Assessing <strong>Lead</strong><br />

Bioavailability in the Terrestrial<br />

Environment................................................... AX7-3<br />

AX7.1.1.3 Tools <strong>for</strong> Bulk <strong>Lead</strong> Quantification<br />

and Speciation................................................ AX7-9<br />

AX7.1.1.4 Biotic Ligand Model.................................... AX7-18<br />

AX7.1.1.5 Soil Amendments......................................... AX7-19<br />

AX7.1.2 Distribution <strong>of</strong> Atmospherically Delivered <strong>Lead</strong> in<br />

Terrestrial Ecosystems....................................................... AX7-22<br />

AX7.1.2.1 Speciation <strong>of</strong> Atmospherically-Delivered<br />

<strong>Lead</strong> in Terrestrial Ecosystems.................... AX7-24<br />

AX7.1.2.2 Tracing the Fate <strong>of</strong> Atmospherically-<br />

Delivered <strong>Lead</strong> in Terrestrial<br />

Ecosystems................................................... AX7-31<br />

AX7.1.2.3 Inputs/Outputs <strong>of</strong> Atmospherically-<br />

Delivered <strong>Lead</strong> in Terrestrial<br />

Ecosystems................................................... AX7-34<br />

AX7.1.2.4 Resistance Mechanisms ............................... AX7-44<br />

AX7.1.2.5 Physiological Effects <strong>of</strong> <strong>Lead</strong> ...................... AX7-46<br />

AX7.1.2.6 Factors that Modify Organism Response..... AX7-48<br />

AX7.1.2.7 Summary...................................................... AX7-55<br />

AX7.1.3 Exposure-Response <strong>of</strong> Terrestrial Species......................... AX7-57<br />

AX7.1.3.1 Summary <strong>of</strong> Conclusions from the<br />

1986 <strong>Lead</strong> <strong>Criteria</strong> Document...................... AX7-59<br />

AX7.1.3.2 Recent Studies on the Effects <strong>of</strong> <strong>Lead</strong><br />

on Primary Producers................................... AX7-61<br />

<strong>II</strong>-vii<br />

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