Evaluating multimedia/multipathway model intake fraction estimates using POP emission and monitoring data.

This paper presents a structured evaluation of a novel multimedia chemical fate and multi-pathway human exposure model for Western Europe, IMPACT 2002, using data for PCDD/F congeners. PCDD/F congeners provide an illustration of the potential use of POPs (Persistent Organic Pollutant) data for the evaluation of such models. Based on available emission estimates, model predictions with and without spatial resolution are evaluated at three different stages against monitored data: at environmental contamination levels, food exposure concentration, and in terms of human intake fractions (iF): the fraction of an emission that is taken in by the population. The iF is approximately 3.5.10(-3) for emissions of dioxin in Western Europe. This iF compares well to the traditional non-spatial multi-media/-pathway model predictions of 3.9.10(-3) for the same region and to 2.10(-3) for the USA. Approximately 95% of the intake from Western European emissions occurs within the same region, 5% being transferred out of the region in terms of food contaminants and atmospheric advective transport.

[1]  J. Devillers,et al.  CHEMFRANCE: a regional level III fugacity model applied to France , 1995 .

[2]  Horst Karl,et al.  Levels of dioxins in fish and fishery products on the German market. , 2002, Chemosphere.

[3]  J. Huwe.  Dioxins in food: a modern agricultural perspective. , 2002, Journal of agricultural and food chemistry.

[4]  J. Paasiv́irta,et al.  Degradation half-life times of PCDDs, PCDFs and PCBs for environmental fate modeling. , 2000, Chemosphere.

[5]  P. Furst,et al.  Exposure of populations to dioxins and related compounds , 2000, Food additives and contaminants.

[6]  W. Shiu,et al.  Illustrated handbook of physical-chemical properties and environmental fate for organic chemicals. Volume 5: pesticide chemicals. , 1992 .

[7]  O. Hutzinger,et al.  PCDD/F in an agricultural food chain Part 1: PCDD/F mass balance of a lactating cow , 1990 .

[8]  J. Pudykiewicz,et al.  Global-scale environmental transport of persistent organic pollutants. , 2001, Chemosphere.

[9]  J. Devillers,et al.  Evaluating the environmental fate of atrazine in France , 1996 .

[10]  Helmut Greim,et al.  The international toxicity equivalency factor (I-TEF) method of risk assessment for complex mixtures of dioxins and related compounds , 1990 .

[11]  Vermeire Tg,et al.  Evaluation of EUSES: inventory of experiences and validation activities , 1998 .

[12]  J. Devillers,et al.  Evaluating the environmental fate of lindane in France , 1996 .

[13]  H. Greim,et al.  The international toxicity equivalency factor (I‐TEF) method for estimating risks associated with exposures to complex mixtures of dioxins and related compounds∗ , 1990 .

[14]  C. Travis,et al.  Bioconcentration of organics in beef, milk, and vegetation. , 1988, Environmental science & technology.

[15]  J. Startin,et al.  Dioxins in Food , 1994 .

[16]  Stefan Schwartz,et al.  Quality Assurance of Exposure Models for Environmental Risk Assessment of Substances , 2000 .

[17]  B. Jiménez,et al.  Congener Specific Analysis of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Crabs and Sediments from the Venice and Orbetello Lagoons, Italy , 1998 .

[18]  C. E. Cowan,et al.  The Multi-Media Fate Model: A Vital Tool for Predicting the Fate of Chemicals, , 1995 .

[19]  C. Schulze,et al.  Concentration of LAS and boron in the itter , 2002, Environmental science and pollution research international.

[20]  D Mackay,et al.  Evaluation and comparison of multimedia mass balance models of chemical fate: application of EUSES and ChemCAN to 68 chemicals in Japan. , 2001, Chemosphere.

[21]  J. Feichter,et al.  Long-range transport and multimedia partitioning of semivolatile organic compounds: A case study on two modern agrochemicals , 2001 .

[22]  Edgar G. Hertwich,et al.  Fate and Exposure Assessment in the Life-Cycle Impact Assessment of Toxic Chemicals , 2002 .

[23]  T E McKone,et al.  Chemical-specific representation of air--soil exchange and soil penetration in regional multimedia models. , 2003, Environmental science & technology.

[24]  O. Jolliet,et al.  Intake Fraction for Multimedia Pollutants: A Tool for Life Cycle Analysis and Comparative Risk Assessment , 2002, Risk analysis : an official publication of the Society for Risk Analysis.

[25]  D. Mackay,et al.  Interpreting, correlating and predicting the multi-media concentrations of PCDD/Fs in the United Kingdom. , 1999 .

[26]  J. Freijer.  Dioxins and dioxin-like PCBs in foodstuffs : occurrence and dietary intake in the Netherlands at the end of the 20th century , 2002 .

[27]  L J Thibodeaux,et al.  Testing a multimedia compartmental model with monitoring data , 2001, Environmental toxicology and chemistry.

[28]  D Mackay,et al.  An assessment of the environmental fate and exposure of benzene and the chlorobenzenes in Canada. , 1999, Chemosphere.

[29]  O. Jolliet,et al.  Defining intake fraction. , 2002, Environmental science & technology.

[30]  K. Jones,et al.  PCDD/F deposition time trend to Esthwaite Water, U.K., and its relevance to sources. , 2001, Environmental science & technology.