For the more information about water resources in the National Park Service, please visit http://www.nature.nps.gov/water/.


Organization

The encyclopedia contains 118 entries; each entry is a separate file. The topics include different chemicals, chemical combinations, and a few related topics. Combination entries include various mixtures such as petroleum products. The entries include:

  • 30 entries covering the oil products most commonly spilled into fresh and marine waters of the U.S., according to EPA
  • 63 entries covering other oil-related topics, including compounds found in oil products as well as general oil topics such as oil spills, petroleum general, total petroleum hydrocarbons, and combination topics such as BTEX compounds (Benzene, Toluene, Ethyl Benzene, and Xylene compounds) and PAHs in general
  • Cyanide, high priority metals, and volatile organic compounds (VOCs/chlorinated organic solvents)

In addition to the 118 files on chemical substances, there is one file for references cited (251KB PDF) and one file for synonyms (46KB PDF).

Structure of Entries

Standard fields within each entry are organized using the structure shown below. The easiest way to locate these headings in each entry is to use the bookmarks or find features in Adobe Acrobat.

In addition to environmental, regulatory, and toxic concentrations, brief sections at the beginning of each entry provide a general overview of the compound; its hazards; its more dangerous toxic effects (carcinogenic, developmental, reproductive, endocrine, genotoxic); and its environmental fate.

Headings within Entries

Brief Introduction:
Br.Class:
General Introduction and Classification Information:
Br.Haz:
General Hazard/Toxicity Summary:
Note: Includes biologically beneficial, systemic and/or resistance information, if any.
Br.Car:
Brief Summary of Carcinogenicity/Cancer Information:
Br.Dev:
Brief Summary of Developmental, Reproductive, Endocrine, and Genotoxicity Information:
Br.Haz:
Br.Fate:
Brief Summary of Key Bioconcentration, Fate, Transport, Persistence, Pathway, and Chemical/Physical Information:
Synonyms/Substance Identification:
Associated Chemicals or Topics (Includes Transformation Products):
Water Data Interpretation, Concentrations and Toxicity (All Water Data Subsections Start with "W."):
W.Low
(Water Concentrations Considered Low):
W.High
(Water Concentrations Considered High):
W.Typical
(Water Concentrations Considered Typical):
W.Concern Levels
Water Quality Criteria, LC50 Values, Water Quality Standards, Screening Levels, Dose/Response Data, and Other Water Benchmarks:
W.General
(General Water Quality Standards, Criteria, and Benchmarks Related to Protection of Aquatic Biota in General; Includes Water Concentrations Versus Mixed or General Aquatic Biota):
W.Plants
(Water Concentrations vs. Plants):
W.Invertebrates
(Water Concentrations vs. Invertebrates):
W.Fish
(Water Concentrations vs. Fish):
W.Wildlife
(Water Concentrations vs. Wildlife or Domestic Animals):
W.Human
(Drinking Water and Other Human Concern Levels):
W.Misc.
(Other Non-concentration Water Information):
Sediment Data Interpretation, Concentrations and Toxicity (All Sediment Data Subsections Start with "Sed."):
Sed.Low
(Sediment Concentrations Considered Low):
Sed.High
(Sediment Concentrations Considered High):
Sed.Typical
(Sediment Concentrations Considered Typical):
Sed.Concern Levels,
Sediment Quality Criteria, LC50 Values, Sediment Quality Standards, Screening Levels, Dose/Response Data and Other Sediment Benchmarks:
Sed.General
(General Sediment Quality Standards, Criteria, and Benchmarks Related to Protection of Aquatic Biota in General; Includes Sediment Concentrations Versus Mixed or General Aquatic Biota):
Sed.Plants
(Sediment Concentrations vs. Plants):
Sed.Invertebrates
(Sediment Concentrations vs. Invertebrates):
Sed.Fish
(Sediment Concentrations vs. Fish):
Sed.Wildlife
(Sediment Concentrations vs. Wildlife or Domestic Animals):
Sed.Human
(Sediment Concentrations vs. Human):
Sed.Misc.
(Other Non-concentration Sediment Information):
Soil Data Interpretation, Concentrations and Toxicity (All Soil Data Subsections Start with "Soil."):
Soil.Low
(Soil Concentrations Considered Low):
Soil.High
(Soil Concentrations Considered High):
Soil.Typical
(Soil Concentrations Considered Typical):
Soil.Concern Levels,
Soil Quality Criteria, LC50 Values, Soil Quality Standards, Screening Levels, Dose/Response Data and Other Soil Benchmarks:
Soil.General
(General Soil Quality Standards, Criteria, and Benchmarks Related to Protection of Soil-dwelling Biota in General; Includes Soil Concentrations Versus Mixed or General Soil-dwelling Biota):
Soil.Plants
(Soil Concentrations vs. Plants):
Soil.Invertebrates
(Soil Concentrations vs. Invertebrates):
Soil.Wildlife
(Soil Concentrations vs. Wildlife or Domestic Animals):
Soil.Human
(Soil Concentrations vs. Human):
Soil.Misc.
(Other Non-concentration Soil Information):
Tissue and Food Concentrations (All Tissue Data Interpretation Subsections Start with "Tis."):
Tis.Plants:
A) As Food: Concentrations or Doses of Concern to Living Things Which Eat Plants:
B) Body Burden Residues in Plants: Typical, Elevated, or of Concern Related to the Well-being of the Organism Itself:
Tis.Invertebrates:
A) As Food: Concentrations or Doses of Concern to Living Things Which Eat Invertebrates:
B) Concentrations or Doses of Concern in Food Items Eaten by Invertebrates:
C) Body Burden Residues in Invertebrates: Typical, Elevated, or of Concern Related to the Well-being of the Organism Itself:
Tis.Fish:
A) As Food: Concentrations or Doses of Concern to Living Things Which Eat Fish (Includes FDA Action Levels for Fish and Similar Benchmark Levels From Other Countries):
B) Concentrations or Doses of Concern in Food Items Eaten by Fish:
C) Body Burden Residues in Fish: Typical, Elevated, or of Concern Related to the Well-being of the Organism Itself:
Tis.Wildlife:
Terrestrial and Aquatic Wildlife, Domestic Animals and all Birds Whether Aquatic or not:
A) As Food: Concentrations or Doses of Concern to Living Things Which Eat Wildlife, Domestic Animals, or Birds:
B) Concentrations or Doses of Concern in Food Items Eaten by Wildlife, Birds, or Domestic Animals (Includes LD50 Values Which do not Fit Well into Other Categories, Includes Oral Doses Administered in Laboratory Experiments):
C) Body Burden Residues in Wildlife, Birds, or Domestic Animals: Typical, Elevated, or of Concern Related to the Well-being of the Organism Itself:
Tis.Human:
A) Typical Concentrations in Human Food Survey Items:
B) Concentrations or Doses of Concern in Food Items Eaten by Humans (Includes Allowable Tolerances in Human Food, FDA, State and Standards of Other Countries):
C) Body Burden Residues in Humans: Typical, Elevated, or of Concern Related to the Well-being of Humans:
Tis.Misc.
(Other Tissue Information):
Bio.Detail: Detailed Information on Bioconcentration, Biomagnification, or Bioavailability:
Interactions:
Uses/Sources:
Forms/Preparations/Formulations:
Chem.Detail: Detailed Information on Chemical/Physical Properties:
Fate.Detail: Detailed Information on Fate, Transport, Persistence, and/or Pathways:
Laboratory and/or Field Analyses:

Last Updated: November 13, 2012