Preliminary geologic characterization of Indiana for indoor-radon survey (1988)

Item Number: RP32
Map Scale: 1:2,000,000
Price $5.00
Format(s)
Quantity

Authors: Nancy Hasenmueller

INTRODUCTION: The Indiana State Board of Health, with assistance from the U.S. Environmental Protection Agency (EPA), expanded the program to assess indoor-radon levels in homes in the state during the 1987-1988 heating season. Radon is a naturally occurring gaseous radioisotope in the uranium-238 decay chain. Because radon is released from bedrock and unconsolidated materials containing the parent isotopes, the first step in conducting an indoor-radon survey was the geologic characterization of Indiana. In July 1987 the EPA requested assistance from the Indiana Geological Survey in preparing a geologic characterization of the state. This report fulfills that request; it includes brief descriptions of bedrock and unconsolidated materials exposed at or near the surface in Indiana, divides the state into eight geologic regions, and describes the relative radon-potential of areas within those regions. At the request of the EPA, areas within Indiana were given radon-potential ratings of low, low/moderate, moderate, moderate/high, or high. The radon-potential ratings shown in plate 1 are based on the composition of the bedrock and unconsolidated material, soil permeability, and uranium anomalies shown on the National Uranium Resource Evaluation (NURE) uranium-anomaly interpretation maps (EG&G geoMetrics, 1980a, 1980b, 1981a-f; Geodata International, Inc, 1980?; Texas Instruments Inc., 1979). The uranium-anomaly data were gathered during the National Airborne Radiometric Reconnaissance part of the NURE program. Within many counties areas of differing radon potential exist.



Hasenmueller, N. R. 1988,  Preliminary geologic characterization of Indiana for indoor-radon survey: Indiana Geological Survey Report of Progress 32, 7 p., 1 fig., 1 pl.


You may also like:

Keywords: geologic hazard, radon, geochemistry, environmental

Can't find what you're looking for? Feel free to contact us directly:

Publication Sales Office
Indiana Geological and Water Survey
611 North Walnut Grove
Bloomington, IN 47405-2208
812-855-7636 (phone)
812-855-2862 (fax)
IGSINFO@indiana.edu

IGS Return Policy

All sales are final. Materials may not be returned after they have been accepted by the customer. Any discrepencies in mail orders must be reported to IGWS within 10 days of receipt of order.

The Indiana Geological and Water Survey will refund the purchase price and sales tax of products if returned with the original sales receipt within 10 days of receipt of order. Refunds will be issued with the same method of payment as indicated on the original receipt except for cash purchases, which will be refunded by check. Items must be returned in the same condition as purchased. Refunds on digital products and services are not allowed, except for defective media such as CD-ROMs, flash drives, and so on. The customer is responsible for paying shipping costs to return items.

Generating Your PDF

Your session for the Indiana Geological and Water Survey will expire in 30 minutes. Please refresh your broswer or click here to restart your session timer.