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HERA Environmental Risk Assessment: Progress and Lessons Learned

This article discusses the progress and lessons learned in the field of environmental risk assessment, specifically tailored to household detergent and cleaning products. It provides insights from the HERA European Stakeholders Workshop in Brussels in October 2001.

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HERA Environmental Risk Assessment: Progress and Lessons Learned

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  1. Human & Environmental Risk Assessment • Environmental Risk Assessment • Progress and Lessons Learned • Kay Fox • Chair of the HERA Environmental Task Force HERA European Stakeholders Workshop: Brussels, Oct 2001

  2. HERA Environment Task Force K. Fox Unilever (Chair) A. Aarts Solutia I. Lopez Petresa C. Arregui HERA P. Masscheleyn P&G J. Backmann HERA C. Poelloth HERA A. Berends Solvay P. Richner CIBA G. Boeije P&G W. Schul BASF D. Calcinai Sasol J. Steber Henkel E. Cerbelaud Rhodia C. Stevens Dow Corning H. Certa Sasol R. Toy Shell Chemicals R. Elsmore McBride R. van Wijk Akzo Nobel V. Koch Clariant T. Wind Henkel HERA European Stakeholders Workshop: Brussels, Oct 2001

  3. Speed Quality HERA Environment Goals • 1a. To develop a methodology, based on the TGD, which is specifically tailored to household detergent and cleaning products • Transparent • Good science • Rapid and easy to use • 1b.To carry out risk assessments, and to use them to improve the methodology HERA European Stakeholders Workshop: Brussels, Oct 2001

  4. HERA EnvironmentConclusions specific for • European Usage • AISE product categories HERA Environmental Risk Assessment starts with EU Technical Guidance Document for New and Existing substances EUSES HERA European Stakeholders Workshop: Brussels, Oct 2001

  5. HERA Main focus on chemical substances used primarily in Household detergent and cleaning products Sewer Transport Focus on the use and disposal of these substances Sewage Treatment HERA European Stakeholders Workshop: Brussels, Oct 2001

  6. Detergent exposure scenario for EUSES TGD • Begin with EUSES • Environment • Local • Regional • Predators exposed via the environment • Man exposed via the environment HERA European Stakeholders Workshop: Brussels, Oct 2001

  7. Detergent exposure scenario for EUSES HERA • Tiered Methodology • Begin with EUSES • Include the HERA Detergent Scenario • Replace selected EUSES values if appropriate • Removal values in Sewage Treatment Plant • Often need Chronic ecotoxicity data • Use all other EUSES initial values HERA European Stakeholders Workshop: Brussels, Oct 2001

  8. Detergent exposure scenario for EUSES • EUSES assumes that • the local wastewater treatment plant receives 4 times the average ingredient input • the Standard EU region receives 10% of the total European product consumption • HERA replaces these assumptions with measuredvalues based on laundry detergentproduct consumption and environmental monitoring data - the HERA Detergent Scenario. • product consumption and environmental monitoring data - the HERA Detergent Scenario. HERA European Stakeholders Workshop: Brussels, Oct 2001

  9. 20 million people 10% of EU Production Production 200 km Formulation 200 km Use Regional Environmental Concentration Standard EU Region Release is based on Production HERA European Stakeholders Workshop: Brussels, Oct 2001

  10. HERA Detergent Release scenario HERA Region Release is based on population density Production 200 km Formulation Use 200 km ~100% of release Kg/person/year HERA European Stakeholders Workshop: Brussels, Oct 2001

  11. HERA The HERA Detergent Scenario takes the highest population density in Europe HERA European Stakeholders Workshop: Brussels, Oct 2001

  12. And the highest laundry detergent usage HERA European Stakeholders Workshop: Brussels, Oct 2001

  13. To generate the maximum regional release for household laundry products 200 km 200 km This is 7% of the European consumption volume HERA European Stakeholders Workshop: Brussels, Oct 2001

  14. HERA • Product use and substance use data are expected to be similar, for most widely used household detergent and cleaning ingredients. • Each HERA Substance Team will consider any areas of high regional usage for their substance, and will modify the HERA regional default if appropriate. Fragrance F HERA European Stakeholders Workshop: Brussels, Oct 2001

  15. STD. EU Region Local treatment plants Release from LOCAL sewage treatment facility EUSES A reasonable worst case treatment plant receives 4 times the average load TGD - Local plant 4 HERA European Stakeholders Workshop: Brussels, Oct 2001

  16. HERA Experimental data • Boron in effluents: 50 treatment plants • NL 7 • Germany 6 • Italy 3 • UK 34 plants Comparison with sales shows 90% of sewage plants receive less than 1.5 times the boron sold in laundry detergent HERA European Stakeholders Workshop: Brussels, Oct 2001

  17. HERA uses 1.5 times, not 4 times the average per capita consumption to determine a realistic worst case for the sewage treatment plant input. • Each HERA Substance team will consider any areas of high local use and will modify this HERA value if appropriate. HERA European Stakeholders Workshop: Brussels, Oct 2001

  18. STD. EU Region Summary - HERA Detergent Scenario 100%, not 99%, of ingredient used goes to the local treatment facility Region - 7%, not 10% of ingredient Local sewage treatment - 1.5 is worst case, not 4. 1.5 HERA European Stakeholders Workshop: Brussels, Oct 2001

  19. So - How well does it work? • As well as for boron and some surfactants, monitoring data are available for FWA-5 • might be subject to local usage patterns • FWA-5 data shows Hera Detergent Scenario is still conservative - i.e. predicts a higher environmental concentration than found experimentally.  HERA European Stakeholders Workshop: Brussels, Oct 2001

  20. HERA Lessons learned - Environment • The HERA detergent scenario, based on measured data for boron in laundry detergent, works - as shown by FWA -5 • Production and Use data • HERA is identifying the datalocations within companies/organisations • HERA is building the network to deliver the data we need HERA European Stakeholders Workshop: Brussels, Oct 2001

  21. HERA Lessons learned - Environment HERA sponsor companies are aware • Hazard data needs are often “higher tier” • Chronic or higher “non-SIDS” data • Environmental exposure - more realistic data often needed • Sewage treatment plant removal data • Environmental monitoring data very helpful HERA European Stakeholders Workshop: Brussels, Oct 2001

  22. HERA Conclusions - Environment • HERA is building a focussed Risk Assessment method • based on the EU TGD • applicable to “HERA” products • HERA is assembling the Network to deliver focussed risk assessments • good science • transparency • comparatively rapid, and easy to use HERA European Stakeholders Workshop: Brussels, Oct 2001

  23. Thanks! • To HERA for providing the Challenges! • To the HERA Environment task force for help with the Solutions • To ERASM and the Environment Agency for England and Wales for funding the boron monitoring work • To the monitoring staff who collected the samples in all weathers! • To you for listening! HERA European Stakeholders Workshop: Brussels, Oct 2001

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