Information resources: How they are utilized by Louisiana

Conference · Mon Dec 31 00:00:00 EST 1990

OSTI ID:139576

Gardner, S ^[1]

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1. Louisiana Department of Environmental Quality, Baton Rouge (United States)

Louisiana, now in a developmental stage of policy and planning, has completed a project aimed at reducing hazardous releases of air toxics in thee state. The state is also conducting a Comparative Risk Project and is using risk assessment practices to develop its waste quality standards. In developing an air toxic list, Louisiana incorporated four major criteria into the ranking: emission levels, human health effects, potential population exposure, and persistence or accumulation in the environment. For the human health effects criterion, data for each substance was gathered from numerous sources, although the Integrated Risk Information System (IRIS) database was used as a primary source for toxicological information. Following guidelines established by the Environmental Protection Agency (EPA), the Office of Water Resources, Water Pollution Control Division, has developed numerical criteria for human health protection based on risk assessment procedures in the 1989 Water Quality Standards Revision. Currently over 30 toxic substances have risk-based criteria for th protection of human health in the standards. Numerical criteria were calculated for carcinogenic substances having an EPA Classification of A, B1, B2, or C. Cancer class designations along with cancer potency slopes and reference doses were extracted from the IRIS database, with the exception of those chemicals that had not been assessed in IRIS as of December 1, 1988. The parameters necessary for calculating human health criteria for the missing chemicals were taken from 1980, 1984, and 1985 ambient water quality criteria documents: data on bioconcentration factors were included. Currently, Louisiana is working on a Comparative Risk Project, a ranking of the environmental issues in the state relative to potential risk to the public, which is the basis for a widespread 1991 public outreach effort.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• OSTI ID: 139576
• Report Number(s): CONF-9006234-; ON: DE93013818; TRN: 94:007226
• Resource Relation: Conference: Symposium on access and use of information resources in assessing health risks from chemical exposure, Oak Ridge, TN (United States), 27-29 Jun 1990; Other Information: PBD: [1990]; Related Information: Is Part Of Access and use of information resources in assessing health risks from chemical exposure: Proceedings; PB: 293 p.
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING AND POLICY
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
LOUISIANA
HEALTH HAZARDS
ENVIRONMENTAL QUALITY
AIR POLLUTION
STANDARDS
AEROSOL WASTES
RISK ASSESSMENT
BIOLOGICAL EFFECTS
INFORMATION
WATER POLLUTION CONTROL
WATER QUALITY
DATA BASE MANAGEMENT
ENVIRONMENTAL EXPOSURE
CARCINOGENS
INFORMATION SYSTEMS