The use of company or product name(s) is for identification only and does not imply endorsement by the Agency for Toxic Substances and Disease Registry.
The Superfund Amendments and Reauthorization Act (SARA) of 1986 (Public Law 99-499) extended and amended the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA or Superfund). This public law directed the Agency for Toxic Substances and Disease Registry (ATSDR) to prepare toxicological profiles for hazardous substances which are most commonly found at facilities on the CERCLA National Priorities List and which pose the most significant potential threat to human health, as determined by ATSDR and the Environmental Protection Agency (EPA). The lists of the 250 most significant hazardous substances were published in the Federal Register on April 17, 1987; on October 20, 1988; on October 26, 1989; and on October 17, 1990. A revised list of 275 substances was published on October 17, 1991.
Section 104(i)(3) of CERCLA, as amended, directs the Administrator of ATSDR to prepare a toxicological profile for each substance on the lists. Each profile must include the following content:
(A) An examination, summary, and interpretation of available toxicological information and epidemiological evaluations on the hazardous substance in order to ascertain the levels of significant human exposure for the substance and the associated acute, subacute, and chronic health effects.
(B) A determination of whether adequate information on the health effects of each substance is available or in the process of development to determine levels of exposure which present a significant risk to human health of acute, subacute, and chronic health effects.
(C) Where appropriate, an identification of toxicological testing needed to identify the types or levels of exposure that may present significant risk of adverse health effects in humans.
This toxicological profile is prepared in accordance with guidelines developed by ATSDR and EPA. The original guidelines were published in the Federal Register on April 17, 1987. Each profile will be revised and republished as necessary.
The ATSDR toxicological profile is intended to characterize succinctly the toxicological and adverse health effects information for the hazardous substance being described. Each profile identifies and reviews the key literature (that has been peer-reviewed) that describes a hazardous substance's toxicological properties. Other pertinent literature is also presented but described in less detail than the key studies. The profile is not intended to be an exhaustive document; however, more comprehensive sources of specialty information are referenced.
Each toxicological profile begins with a public health statement, which describes in nontechnical language a substance's relevant toxicological properties. Following the public health statement is information concerning levels of significant human exposure and, where known, significant health effects. The adequacy of information to determine a substance's health effects is described in a health effects summary. Data needs that are of significance to protection of public health will be identified by ATSDR, the National Toxicology Program (NTP) of the Public Health Service, and EPA. The focus of the profiles is on health and toxicological information; therefore, we have included this information in the beginning of the document.
The principal audiences for the toxicological profiles are health professionals at the federal, state, and local levels, interested private sector organizations and groups, and members of the public.
This profile reflects our assessment of all relevant toxicological testing and information that has been peer reviewed. It has been reviewed by scientists from ATSDR, the Centers for Disease Control, the NTP, and other federal agencies. It has also been reviewed by a panel of nongovernment peer reviewers. Final responsibility for the contents and views expressed in this toxicological profile resides with ATSDR.
Administrator Agency for Toxic Substances and Disease Registry
DISCLAIMER FOREWORD LIST OF FIGURES LIST OF TABLES
1. PUBLIC HEALTH STATEMENT
1.1 WHAT IS BORON?
1.2 HOW MIGHT I BE EXPOSED TO BORON?
1.3 HOW CAN BORON ENTER AND LEAVE MY BODY?
1.4 HOW CAN BORON AFFECT MY HEALTH?
1.5 IS THERE A MEDICAL TEST TO DETERMINE WHETHER I HAVE BEEN EXPOSED TO BORON?
1.6 WHAT RECOMMENDATIONS HAS THE FEDERAL GOVERNMENT MADE TO PROTECT HUMAN HEALTH?
1.7 WHERE CAN I GET MORE INFORMATION?
2. HEALTH EFFECTS
2.2 DISCUSSION OF HEALTH EFFECTS BY ROUTE OF EXPOSURE
2.2.1 Inhalation Exposure
184.108.40.206 Systemic Effects
220.127.116.11 Immunological Effects
18.104.22.168 Neurological Effects
22.214.171.124 Developmental Effects
126.96.36.199 Reproductive Effects
188.8.131.52 Genotoxic Effects
2.2.2 Oral Exposure
184.108.40.206 Systemic Effects
220.127.116.11 Immunological Effects
18.104.22.168 Neurological Effects
22.214.171.124 Developmental Effects
126.96.36.199 Reproductive Effects
188.8.131.52 Genotoxic Effects
2.2.3 Dermal Exposure
184.108.40.206 Systemic Effects
220.127.116.11 Immunological Effects
18.104.22.168 Neurological Effects
22.214.171.124 Developmental Effects
126.96.36.199 Reproductive Effects
188.8.131.52 Genotoxic Effects
184.108.40.206 Inhalation Exposure
220.127.116.11 Oral Exposure
18.104.22.168 Dermal Exposure
22.214.171.124 Inhalation Exposure
126.96.36.199 Oral Exposure
188.8.131.52 Dermal Exposure
184.108.40.206 Inhalation Exposure
220.127.116.11 Oral Exposure
18.104.22.168 Dermal Exposure
22.214.171.124 Inhalation Exposure
126.96.36.199 Oral Exposure
188.8.131.52 Dermal Exposure
184.108.40.206 Other Exposure
2.4 RELEVANCE TO PUBLIC HEALTH
2.5 BIOMARKERS OF EXPOSURE AND EFFECT
2.5.1 Biomarkers Used to Identify and/or Quantify Exposure to Boron
2.5.2 Biomarkers Used to Characterize Effects Caused by Boron
2.6 INTERACTIONS WITH OTHER CHEMICALS
2.7 POPULATIONS THAT ARE UNUSUALLY SUSCEPTIBLE
2.8 MITIGATION OF EFFECTS
2.9 ADEQUACY OF THE DATABASE
2.9.1 Existing Information on Health Effects of Boron
2.9.2 Data Needs
2.9.3 On-going Studies
3. CHEMICAL AND PHYSICAL INFORMATION
3.1 CHEMICAL IDENTITY
3.2 PHYSICAL AND CHEMICAL PROPERTIES
4. PRODUCTION, IMPORT, USE, AND DISPOSAL
5. POTENTIAL FOR HUMAN EXPOSURE
5.2 RELEASES TO THE ENVIRONMENT
5.3 ENVIRONMENTAL FATE
5.3.1 Transport and Partitioning
5.3.2 Transformation and Degradation
5.4 LEVELS MONITORED OR ESTIMATED IN THE ENVIRONMENT
5.4.4 Other Environmental Media
5.5 GENERAL POPULATION AND OCCUPATIONAL EXPOSURE
5.6 POPULATIONS WITH POTENTIALLY HIGH EXPOSURES
5.7 ADEQUACY OF THE DATABASE
5.7.1 Data Needs
5.7.2 On-going Studies
6. ANALYTICAL METHODS
6.1 BIOLOGICAL MATERIALS
6.2 ENVIRONMENTAL SAMPLES
6.3 ADEQUACY OF THE DATABASE
6.3.1 Data Needs
6.3.2 On-going Studies
7. REGULATIONS AND ADVISORIES
9. GLOSSARY APPENDICES
A. USER'S GUIDE
B. ACRONYMS, ABBREVIATIONS, AND SYMBOLS
C. PEER REVIEW
LIST OF FIGURES
2-1 Levels of Significant Exposure to Boron and Compounds-Inhalation 2-2 Levels of Significant Exposure to Boron and Compounds-Oral
2-3 Existing Information on Health Effects of Boron
5-1 Frequency of NPL Sites with Boron Contamination*
LIST OF TABLES
2-1 Levels of Significant Exposure to Boron and Compounds - Inhalation
2-2 Levels of Significant Exposure to Boron and Compounds - Oral
2-3 Levels of Significant Exposure to Boron and Compounds - Dermal
2-4 Genotoxicity of Boron In Vitro
3-1 Chemical Identity of Boron and Compounds"
3-2 Physical and Chemical Properties of Boron and Compounds'1
6-1 Analytical Methods Boron in Biological Materials
6-2 Analytical Methods for Determining Boron in Environmental Samples
7-1 Regulations and Guidelines Applicable to Boron and Compounds
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