Community Research and Development Information Service - CORDIS


Since petroleum substances are mostly complex mixtures, special classification and risk assessment guidelines for health and environment need to be developed for them. The relevant information for these risk assessment guidelines will be based on the combination of exposure (from process and use) and effect information. The effect information for all possible individual (hydrocarbon) components (such as PAHs) within petroleum substances will be stored in an effect matrix. Calculation rules for mixture toxicity (if possible based on narcotic actions), will be developed to combine the toxicity values of the individual (hydrocarbon) components to the cocktails of petroleum substances. Since some of the groups of petroleum substances may contain significant concentrations of PAHs, this may in turn largely determine their potential ecological and health hazard. The calculation rules in combination with the data from the effect matrix and the exposure data will be the bases for the risk assessment guidelines. Applying these guidelines to the petroleum substances may result in a kind of effect-index (similar to the TEQ approach for dioxins). A major contributor to this TEQ for petroleum substances may be PAHs.

Additional information

Authors: KARCHER W, JRC Ispra (IT);VERBURGH J, JRC Ispra (IT);HANSEN B G, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Risk Assessment of PAHs in the Environment, San Franscisco (US), June 25-28, 1995
Availability: Available from (1) as Paper EN 38988 ORA
Record Number: 199510721 / Last updated on: 1995-07-07
Original language: en
Available languages: en