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NHEXAS PHASE I REGION 5 STUDY
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The EPA does all it can to ensure that the identity of survey participants cannot be disclosed. All direct identifiers, as well as any characteristics that might lead to identifications, are omitted from the data. Any intentional identification or disclosure of a person or establishment violates the assurances of confidentiality given to the providers of the information. Therefore, users will (1) use the data in this study for statistical reporting and analysis only; (2) make no use of the identity of any person or establishment discovered inadvertently and will advise the HEDS Administrator of any such discovery; (3) will not link this data with individually identifiable data from other EPA or non-EPA data.
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Description:
The National Human Exposure Assessment Survey (NHEXAS) is a federal interagency research effort coordinated by the Environmental Protection Agency (EPA), Office of Research and Development (ORD). Phase I consists of demonstration/scoping studies using probability-based sampling designs. The Region 5 study was conducted in EPA's Region 5 (Ohio, Michigan, Illinois, Indiana, Wisconsin, and Minnesota), and included personal exposure, residential concentration, and biomarker measurements of metals and VOCs. The study was conducted by the Research Triangle Institute (RTI) and the Environmental and Occupational Health Sciences Institute (EOHSI). The scope and design of the study are detailed in the following article: E. Pellizzari et al., Population-Based Exposure Measurements in EPA Region 5: A Phase I Field Study in Support of the National Human Exposure Assessment Survey. Journal of Exposure Analysis and Environmental Epidemiology, Vol. 5, No. 3, 1995, pp. 327-358.
NOTE: The U.S. Environmental Protection Agency (EPA), through its Office of Research and Development (ORD), partially funded and collaborated in the research described here. Mention of trade names or commercial products does not constitute endorsement or recommendation by EPA for use.
Record Details:
Record Type:PROJECT( REPORT )Related Records:
NHEXAS PHASE I REGION 5 STUDY--DESCRIPTIVE QUESTIONNAIRE DATARelationship Reason:NHEXAS PHASE I REGION 5 STUDY--DESCRIPTIVE QUESTIONNAIRE DATA17419DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--LIST OF STUDY DOCUMENTS: PROTOCOLS AND SOPS
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--LIST OF STUDY DOCUMENTS: PROTOCOLS AND SOPS18199DOCUMENT1.0LIST OF STUDY DOCUMENTSREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--EXPOSURE AND DOSE ASSESSMENT MODELING AND EVALUATION (EOHSI-AP-209-600)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--EXPOSURE AND DOSE ASSESSMENT MODELING AND EVALUATION (EOHSI-AP-209-600)17939DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--COMPENDIUM OF METHODS FOR ANALYSIS OF TRACE METALS IN DIETARY SAMPLES USING TOTAL DIET STUDY PROCEDURES (FDA-COMPENDIUM)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--COMPENDIUM OF METHODS FOR ANALYSIS OF TRACE METALS IN DIETARY SAMPLES USING TOTAL DIET STUDY PROCEDURES (FDA-COMPENDIUM)17361DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--COMPENDIUM OF METHODS FOR ANALYSIS OF METALS AND VOCS IN WATER (EPA-COMPENDIUM)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--COMPENDIUM OF METHODS FOR ANALYSIS OF METALS AND VOCS IN WATER (EPA-COMPENDIUM)17360DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--COMPENDIUM OF METHOD SUMMARIES FOR COLLECTION AND ANALYSIS OF METALS AND VOCS IN BLOOD AND URINE (CDC-COMPENDIUM)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--COMPENDIUM OF METHOD SUMMARIES FOR COLLECTION AND ANALYSIS OF METALS AND VOCS IN BLOOD AND URINE (CDC-COMPENDIUM)17322DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CERTIFICATION OF STANDARD WEIGHTS (NHX/SOP-820-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CERTIFICATION OF STANDARD WEIGHTS (NHX/SOP-820-001)17321DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR TRAINING FILE INSPECTIONS (NHX/SOP-815-004)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR TRAINING FILE INSPECTIONS (NHX/SOP-815-004)17320DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CONDUCTING INSTRUMENT LOG NOTEBOOK INSPECTIONS (NHX/SOP-815-003)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CONDUCTING INSTRUMENT LOG NOTEBOOK INSPECTIONS (NHX/SOP-815-003)17319DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CONDUCTING SYSTEMS AUDITS (NHX/SOP-815-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CONDUCTING SYSTEMS AUDITS (NHX/SOP-815-001)17301DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CONDUCTING LABORATORY NOTEBOOK INSPECTIONS (NHX/SOP-815-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CONDUCTING LABORATORY NOTEBOOK INSPECTIONS (NHX/SOP-815-002)17300DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PREPARATION AND HANDLING OF PERFORMANCE EVALUATION SAMPLES (NHX/SOP-810-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PREPARATION AND HANDLING OF PERFORMANCE EVALUATION SAMPLES (NHX/SOP-810-002)17299DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE HYDRO 'PICOSYSTEM PLUS' ULTRAPURE WATER SYSTEM (NHX/SOP-300-009)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE HYDRO 'PICOSYSTEM PLUS' ULTRAPURE WATER SYSTEM (NHX/SOP-300-009)17287DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE METTLER AT 261 ANALYTICAL BALANCE (NHX/SOP-300-008)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE METTLER AT 261 ANALYTICAL BALANCE (NHX/SOP-300-008)17286DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CLEANING LABWARE IN THE ACS INORGANIC CLASS 100/10,000 CLEAN LAB FACILITY (NHX/SOP-300-007)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CLEANING LABWARE IN THE ACS INORGANIC CLASS 100/10,000 CLEAN LAB FACILITY (NHX/SOP-300-007)17285DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE ACS INORGANIC CLASS 100/10,000 CLEAN LAB FACILITY (NHX/SOP-300-006)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE ACS INORGANIC CLASS 100/10,000 CLEAN LAB FACILITY (NHX/SOP-300-006)17284DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE MAINTENANCE OF PS ANALYTICAL HYDRIDE GENERATION ATOMIC FLUORESCENCE SPECTROMETER (HGAF) (NHX/SOP-300-005)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE MAINTENANCE OF PS ANALYTICAL HYDRIDE GENERATION ATOMIC FLUORESCENCE SPECTROMETER (HGAF) (NHX/SOP-300-005)17283DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURES FOR MONITORING AND MAINTAINING CLEANLINESS OF THE ACS INORGANIC CLEAN LAB FACILITY (NHX/SOP-300-004)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURES FOR MONITORING AND MAINTAINING CLEANLINESS OF THE ACS INORGANIC CLEAN LAB FACILITY (NHX/SOP-300-004)17282DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PURIFICATION OF REAGENTS IN THE ACS INORGANIC CLEAN LAB FACILITY FOR TRACE/ULTRATRACE METAL ANALYSIS (NHX/SOP-300-003)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PURIFICATION OF REAGENTS IN THE ACS INORGANIC CLEAN LAB FACILITY FOR TRACE/ULTRATRACE METAL ANALYSIS (NHX/SOP-300-003)17281DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURES FOR PERSONNEL SAFETY IN THE ACS INORGANIC CLEAN LAB FACILITY (NHX/SOP-300-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURES FOR PERSONNEL SAFETY IN THE ACS INORGANIC CLEAN LAB FACILITY (NHX/SOP-300-002)17280DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE OPERATION OF PS ANALYTICAL HYDRIDE GENERATION ATOMIC FLUORESCENCE SPECTROMETER (HGAFS) (NHX/SOP-300-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE OPERATION OF PS ANALYTICAL HYDRIDE GENERATION ATOMIC FLUORESCENCE SPECTROMETER (HGAFS) (NHX/SOP-300-001)17279DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--PROCEDURE FOR RECEIPT, PROCESSING, AND ASSEMBLY OF ANALYTICAL RESULTS AND QUESTIONNAIRE DATA INTO A DATABASE (RTI/ACS-AP-209-400)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--PROCEDURE FOR RECEIPT, PROCESSING, AND ASSEMBLY OF ANALYTICAL RESULTS AND QUESTIONNAIRE DATA INTO A DATABASE (RTI/ACS-AP-209-400)17262DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS TIME/ACTIVITY DIARY PROCESSING AND ANALYSIS PROTOCOL (EOHSI-AP-209-301)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS TIME/ACTIVITY DIARY PROCESSING AND ANALYSIS PROTOCOL (EOHSI-AP-209-301)17198DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS TIME/ACTIVITY DIARY COLLECTION PROTOCOL (EOHSI-AP-209-300)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS TIME/ACTIVITY DIARY COLLECTION PROTOCOL (EOHSI-AP-209-300)17197DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF SOIL FOR ARSENIC (RTI/ACS-AP-209-123)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF SOIL FOR ARSENIC (RTI/ACS-AP-209-123)17187DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF CARPET DUST FOR ARSENIC (RTI/ACS-AP-209-122)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF CARPET DUST FOR ARSENIC (RTI/ACS-AP-209-122)17186DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF HOUSE DUST FOR ARSENIC (RTI/ACS-AP-209-121)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF HOUSE DUST FOR ARSENIC (RTI/ACS-AP-209-121)17185DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF DUST AND SOIL FOR LEAD, CADMIUM, AND CHROMIUM (RTI/ACS-AP-209-120)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF DUST AND SOIL FOR LEAD, CADMIUM, AND CHROMIUM (RTI/ACS-AP-209-120)17184DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF VOLATILE ORGANIC COMPOUNDS FROM CHARCOAL BADGES BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY (RTI/ACS-AP-209-112)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF VOLATILE ORGANIC COMPOUNDS FROM CHARCOAL BADGES BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY (RTI/ACS-AP-209-112)17183DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF TEFLON FILTERS USED IN PERSONAL AIR MONITORING SAMPLERS FOR LEAD, ARSENIC, CADMIUM, AND CHROMIUM (RTI/ACS-AP-209-111)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--ANALYSIS OF TEFLON FILTERS USED IN PERSONAL AIR MONITORING SAMPLERS FOR LEAD, ARSENIC, CADMIUM, AND CHROMIUM (RTI/ACS-AP-209-111)17182DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD STAFF TRAINING (RTI/ACS-AP-209-095)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD STAFF TRAINING (RTI/ACS-AP-209-095)17181DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--HANDLING QUALITY CONTROL SAMPLES IN THE FIELD (RTI/ACS-AP-209-090)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--HANDLING QUALITY CONTROL SAMPLES IN THE FIELD (RTI/ACS-AP-209-090)17180DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--PARTICIPANT SCHEDULES AND TRAINING (RTI/ACS-AP-209-087)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--PARTICIPANT SCHEDULES AND TRAINING (RTI/ACS-AP-209-087)17179DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD USE OF THE SAMPLE COLLECTION AND CUSTODY SOFTWARE (RTI/ACS-AP-209-086)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD USE OF THE SAMPLE COLLECTION AND CUSTODY SOFTWARE (RTI/ACS-AP-209-086)17161DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD STAFF SAFETY AND DECORUM (RTI/ACS-AP-209-085)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD STAFF SAFETY AND DECORUM (RTI/ACS-AP-209-085)17160DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--VEHICLE OPERATIONS AND MAINTENANCE (RTI/ACS-AP-209-084)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--VEHICLE OPERATIONS AND MAINTENANCE (RTI/ACS-AP-209-084)17159DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--SAMPLE SHIPPING PROCEDURES (RTI/ACS-AP-209-083)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--SAMPLE SHIPPING PROCEDURES (RTI/ACS-AP-209-083)17139DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURES FOR FIELD CHECKS OF EQUIPMENT (RTI/ACS-AP-209-082)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURES FOR FIELD CHECKS OF EQUIPMENT (RTI/ACS-AP-209-082)17120DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD SAMPLE STORAGE PROCEDURES (RTI/ACS-AP-209-081)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--FIELD SAMPLE STORAGE PROCEDURES (RTI/ACS-AP-209-081)17119DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS PILOT FIELD STUDY SCRIPTING AND LOGISTICS (RTI/ACS-AP-209-080)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS PILOT FIELD STUDY SCRIPTING AND LOGISTICS (RTI/ACS-AP-209-080)17099DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--SAMPLE CUSTODY PROCEDURES (RTI/ACS-AP-209-071)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--SAMPLE CUSTODY PROCEDURES (RTI/ACS-AP-209-071)17080DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--SAMPLE CODING, LABELING, AND FIELD TRACKING PROCEDURES (RTI/ACS-AP-209-070)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--SAMPLE CODING, LABELING, AND FIELD TRACKING PROCEDURES (RTI/ACS-AP-209-070)17079DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF HAIR SAMPLES FOR TRACE METALS AND ARSENIC (RTI/ACS-209-046)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF HAIR SAMPLES FOR TRACE METALS AND ARSENIC (RTI/ACS-209-046)17019DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--HUMAN BIOLOGICAL MARKERS:BLOOD AND URINE SAMPLE COLLECTION AND ANALYSES (EOHSI-AP-209-040)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--HUMAN BIOLOGICAL MARKERS:BLOOD AND URINE SAMPLE COLLECTION AND ANALYSES (EOHSI-AP-209-040)16979DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF DUPLICATE DIET FOOD AND BEVERAGE SAMPLES (RTI/ACS-AP-209-030)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF DUPLICATE DIET FOOD AND BEVERAGE SAMPLES (RTI/ACS-AP-209-030)16959DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--DUST SAMPLING WORKPLAN (RTI/ACS-AP-209-020)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--DUST SAMPLING WORKPLAN (RTI/ACS-AP-209-020)16921DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION/STORAGE/SHIPMENT OF SAMPLES FOR VOLATILE ORGANIC COMPOUNDS IN PERSONAL/INDOOR/OUTDOOR/OCCUPATIONAL AIR (RTI/ACS-AP-209-012)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION/STORAGE/SHIPMENT OF SAMPLES FOR VOLATILE ORGANIC COMPOUNDS IN PERSONAL/INDOOR/OUTDOOR/OCCUPATIONAL AIR (RTI/ACS-AP-209-012)16919DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS FILTER HANDLING, WEIGHING AND ARCHIVING PROCEDURES FOR AEROSOL SAMPLES (RTI/ACS-AP-209-011)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS FILTER HANDLING, WEIGHING AND ARCHIVING PROCEDURES FOR AEROSOL SAMPLES (RTI/ACS-AP-209-011)16899DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--PERSONAL, INDOOR AND OUTDOOR AIR SAMPLING PROCEDURES FOR TOTAL INSPIRABLE AND PM10 AEROSOLS (RTI/ACS-AP-209-010)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--PERSONAL, INDOOR AND OUTDOOR AIR SAMPLING PROCEDURES FOR TOTAL INSPIRABLE AND PM10 AEROSOLS (RTI/ACS-AP-209-010)16882DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF DRINKING WATER SAMPLES FOR VOCS BY EPA METHOD 524.2 (RTI/ACS-AP-209-003)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF DRINKING WATER SAMPLES FOR VOCS BY EPA METHOD 524.2 (RTI/ACS-AP-209-003)16880DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF FLUSH AND DRINKING WATER OR DRINKING WATER SAMPLES FOR METALS AND ARSENIC BY EPA METHOD 200.8 (RTI/
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF FLUSH AND DRINKING WATER OR DRINKING WATER SAMPLES FOR METALS AND ARSENIC BY EPA METHOD 200.8 (RTI/16879DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF STANDING TAP WATER SAMPLES FOR METALS AND ARSENIC BY EPA METHOD 200.8 (RTI/ACS-AP-209-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR COLLECTION, STORAGE, AND SHIPMENT OF STANDING TAP WATER SAMPLES FOR METALS AND ARSENIC BY EPA METHOD 200.8 (RTI/ACS-AP-209-001)16860DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR HANDLING HUMAN BLOOD AND OTHER BODY FLUIDS (NHX/SOP-190-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR HANDLING HUMAN BLOOD AND OTHER BODY FLUIDS (NHX/SOP-190-002)16859DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR TUNING OF THE HP-5988A MASS SPECTROMETER
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR TUNING OF THE HP-5988A MASS SPECTROMETER16841DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR MAINTENANCE OF HEWLETT-PACKARD 5988A GC/MS SYSTEM (NHX/SOP-184-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR MAINTENANCE OF HEWLETT-PACKARD 5988A GC/MS SYSTEM (NHX/SOP-184-001)16840DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR MAINTENANCE OF PERKIN ELMER (PE) MODEL ZL5100 PC ATOMIC ABSORPTION SPECTROMETER: GRAPHITE FURNACE (NHX/SOP-171-006)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR MAINTENANCE OF PERKIN ELMER (PE) MODEL ZL5100 PC ATOMIC ABSORPTION SPECTROMETER: GRAPHITE FURNACE (NHX/SOP-171-006)16839DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE CALIBRATION OF PERKIN ELMER (PE) MODEL 5100 ZL ATOMIC ABSORPTION SPECTROMETER: GRAPHITE FURNACE (NHX/SOP-171-005)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR THE CALIBRATION OF PERKIN ELMER (PE) MODEL 5100 ZL ATOMIC ABSORPTION SPECTROMETER: GRAPHITE FURNACE (NHX/SOP-171-005)16820DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR DRYING OVENS (NHX/SOP-163-003)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR DRYING OVENS (NHX/SOP-163-003)16819DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--REFRIGERATORS AND FREEZERS (NHX/SOP-163-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--REFRIGERATORS AND FREEZERS (NHX/SOP-163-001)16799DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR METTLER AE160 ELECTRONIC BALANCE (NHX/SOP-160-009)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR METTLER AE160 ELECTRONIC BALANCE (NHX/SOP-160-009)16779DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR METTLER AE163 AND AE240 ELECTRONIC BALANCE (NHX/SOP-160-008)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR METTLER AE163 AND AE240 ELECTRONIC BALANCE (NHX/SOP-160-008)16759DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CAHN 29 ELECTROBALANCE (NHX/SOP-160-005)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CAHN 29 ELECTROBALANCE (NHX/SOP-160-005)16741DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CALIBRATION OF A METTLER M5 ANALYTICAL BALANCE (NHX/SOP-160-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CALIBRATION OF A METTLER M5 ANALYTICAL BALANCE (NHX/SOP-160-002)16740DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CALIBRATION OF A METTLER PL1200 BALANCE (NHX/SOP-160-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CALIBRATION OF A METTLER PL1200 BALANCE (NHX/SOP-160-001)16739DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CLEANING GLASSWARE/PLASTICWARE (NHX/SOP-150-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR CLEANING GLASSWARE/PLASTICWARE (NHX/SOP-150-001)16719DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PROPER USE AND MAINTENANCE OF CHEMICAL LOG NOTEBOOKS (NHX/SOP-120-003)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PROPER USE AND MAINTENANCE OF CHEMICAL LOG NOTEBOOKS (NHX/SOP-120-003)16699DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PROPER USE AND MAINTENANCE OF INSTRUMENT LOG NOTEBOOKS (NHX/SOP-120-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PROPER USE AND MAINTENANCE OF INSTRUMENT LOG NOTEBOOKS (NHX/SOP-120-002)16680DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PROPER USE AND MAINTENANCE OF LABORATORY NOTEBOOKS (NHX/SOP-120-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PROPER USE AND MAINTENANCE OF LABORATORY NOTEBOOKS (NHX/SOP-120-001)16679DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR RTI/EOHSI QUALITY ASSURANCE OFFICER (NHX/SOP-110-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR RTI/EOHSI QUALITY ASSURANCE OFFICER (NHX/SOP-110-002)16619DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PREPARATION OF A PROTOCOL (NHX/SOP-100-003)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PREPARATION OF A PROTOCOL (NHX/SOP-100-003)16601DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR REVISING STANDARD OPERATING PROCEDURES AND PROTOCOLS (NHX/SOP-100-002)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR REVISING STANDARD OPERATING PROCEDURES AND PROTOCOLS (NHX/SOP-100-002)16600DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PREPARATION OF A STANDARD OPERATING PROCEDURE (NHX/SOP-100-001)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE FOR PREPARATION OF A STANDARD OPERATING PROCEDURE (NHX/SOP-100-001)16599DOCUMENT1.0RELATED SOPREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--QUALITY SYSTEMS AND IMPLEMENTATION PLAN FOR HUMAN EXPOSURE ASSESSMENT STUDY (RTI/5740/02-02QSIP)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--QUALITY SYSTEMS AND IMPLEMENTATION PLAN FOR HUMAN EXPOSURE ASSESSMENT STUDY (RTI/5740/02-02QSIP)16579DOCUMENT1.0APPLICABLE QUALITY SYSTEMS AND IMPLEMENTATION PLANREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR METALS IN SPIKES
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR METALS IN SPIKES17952DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--PARTICLES IN AIR ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--TIME-ACTIVITY DIARY QUESTIONNAIRE DATA (ALL MONITORING PERIODS)
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NHEXAS PHASE I REGION 5 STUDY--FOLLOW-UP QUESTIONNAIRE DATA (ALL MONITORING PERIODS)
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NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR VOCS IN BLANKS
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR VOCS IN BLANKS17767DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR VOCS IN SPIKES
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NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR VOCS IN REPLICATES
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NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR METALS IN BLANKS
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR METALS IN BLANKS17660DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--QA ANALYTICAL RESULTS FOR METALS IN REPLICATES
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NHEXAS PHASE I REGION 5 STUDY--METALS IN HAIR ANALYTICAL RESULTS
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--METALS IN HAIR ANALYTICAL RESULTS17582DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--METALS IN URINE ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--VOCS IN BLOOD ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--METALS IN BLOOD ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--METALS IN FOOD ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--VOCS IN WATER ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--METALS IN WATER ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--METALS IN SOIL ANALYTICAL RESULTS
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NHEXAS PHASE I REGION 5 STUDY--METALS IN DUST ANALYTICAL RESULTS
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--METALS IN DUST ANALYTICAL RESULTS17519DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--METALS IN AIR ANALYTICAL RESULTS
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--METALS IN AIR ANALYTICAL RESULTS17499DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--VOCS IN AIR ANALYTICAL RESULTS
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--VOCS IN AIR ANALYTICAL RESULTS17479DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--FOOD FOLLOW-UP QUESTIONNAIRE DATA
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--FOOD FOLLOW-UP QUESTIONNAIRE DATA17459DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--TIME-ACTIVITY DIARY QUESTIONNAIRE DATA (MONITORING PERIOD 1)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--TIME-ACTIVITY DIARY QUESTIONNAIRE DATA (MONITORING PERIOD 1)17441DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--FOLLOW-UP QUESTIONNAIRE DATA (MONITORING PERIOD 1)
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--FOLLOW-UP QUESTIONNAIRE DATA (MONITORING PERIOD 1)17440DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--TECHNICIAN WALK-THROUGH QUESTIONNAIRE DATA
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--TECHNICIAN WALK-THROUGH QUESTIONNAIRE DATA17439DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
NHEXAS PHASE I REGION 5 STUDY--BASELINE QUESTIONNAIRE DATA
Relationship Reason:NHEXAS PHASE I REGION 5 STUDY--BASELINE QUESTIONNAIRE DATA17420DATA SET1.0DATA SET WITHIN STUDYREVIEWEDPUBLICORDNERL
Related Organizations:
Role :CONTACTOrganization Name :U.S. EPA Human Exposure and Atmospheric Sciences Division
Primary Email :admin.heds@epa.gov
Mailing Address :P.O. Box 93478
Citation :Las Vegas
State :NV
Zip Code :891933478
Quality Assurance:
Title :NHEXAS PHASE I REGION 5 STUDYData Use & Constraints :NHEXAS is a rich source of data. EPA encourages you to use the data for research and analysis. User familiarity with data file manipulation and analysis is required. EPA does not have the resources to perform analyses, check results, debug programs, or do literature review for your work. Thorough review of the documentation on the survey's planning, analytic guidelines, and individual datasets available through HEDS and EIMS should resolve most questions. If you still have questions after careful review of the documentation, please contact the Human Exposure and Atmospheric Sciences Division at (919) 541-3184 or send an e-mail to "admin.heds@epa.gov". Please review the data use restrictions in the Notice field (EIMS Summary page) and your agreement to comply with these restrictions in using the data.
These data are the result of a probability-based sampling design specific to the population under study. Thus the data may or may not be representative of subsets of this study's population or of other populations. The study was designed to test certain hypotheses, and this may limit its applicability for other purposes. When using these data it is important to consider the percentage of non-responses or non-detects in the data as an indicator of its usefulness for other purposes. No liability is accepted by the U.S. EPA for any errors or omissions in the results included in the data sets, associated information, and/or documentation.
Based on the output format selected by the user and the software into which the data set is imported, users may notice that measurements and sampling weights are zero-padded to the right of non-zero decimal digits. These zeroes are purely a function of the formatting process and the software's acceptance of that format and should not be construed to represent significant digits in the value. Measurement values are provided with four significant digits; sampling weights are provided with three decimal digits.