Environmental Risk Assessment

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Human Environmental Risk Assessment
Environmental Risk Assessment Progress and
Lessons Learned Kay Fox Chair of the HERA
Environmental Task Force
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HERA Environment Task Force
K. Fox Unilever
(Chair) A. Aarts Solutia I.
Lopez Petresa C. Arregui
HERA P. Masscheleyn PG
J. Backmann HERA C.
Poelloth HERA A. Berends
Solvay P. Richner
CIBA G. Boeije PG 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
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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

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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
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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
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Detergent exposure scenario for EUSES
TGD

• Begin with EUSES
• Environment
• Local
• Regional
• Predators exposed via the environment
• Man exposed via the environment

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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

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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 measured
  values based on laundry detergent product
  consumption and environmental monitoring data -
  the HERA Detergent Scenario.

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Regional Environmental Concentration
Standard EU Region
Release is based on Production
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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
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HERA
The HERA Detergent Scenario takes the highest
population density in Europe
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And the highest laundry detergent usage
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To generate the maximum regional release for
household laundry products
200 km
200 km
This is 7 of the European consumption volume
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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
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Release from LOCAL sewage treatment facility
EUSES
A reasonable worst case treatment plant receives
4 times the average load
TGD - Local plant
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Experimental data
HERA
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
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• 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.

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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
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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.

?
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Lessons learned - Environment
HERA

• 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 data locations within
  companies/organisations
• HERA is building the network to deliver the data
  we need

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Lessons learned - Environment
HERA
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

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Conclusions - Environment
HERA

• 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

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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!