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REACH: Chemical Safety Report RIP 3'2

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Evaluation physicochemical hazard impact on human health ... Determine the levels not to be exceeded upon exposure by man. Derived no effect level DNEL ' ... – PowerPoint PPT presentation

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Title: REACH: Chemical Safety Report RIP 3'2


1
REACH Chemical Safety Report (RIP 3.2)
Dr. Erwin Annys Sr. Advisor Product Innovation
Policy WERCS 2007 EU User group Napoli 31/05/07
2
Annex I
  • A chemical safety assessment consists of
  • Evaluation human health hazard
  • Evaluation physicochemical hazard impact on
    human health
  • Evaluation environmental hazard
  • PBT en vPvB evaluation

3
Annex I
  • If this ends up in a classification according to
    directive 67/548/EEG or 1999/45/EG or as PBT or
    vPvB
  • Exposure assessment
  • Risk characterisation

4
Human health hazard assessment
  • Objectives
  • Classification and labelling according to
    67/548/EEC
  • Determine the levels not to be exceeded upon
    exposure by man
  • Derived no effect level DNEL
  •  Treshold concentration 

5
Human health hazard assessment
  • Following effects are evaluated
  • Toxicocinetics, metabolism and distribution
  • Acute effects (toxicity, irritation and
    corrosion)
  • Sensibilisation
  • Toxicity repetitive administration
  • CMR-effects

6
Human health hazard assessment
  • The evaluation consists of four steps
  • Step 1 Evaluation of other information than on
    man
  • Step 2 Evaluation of information on man
  • Step 3 Classification and labelling
  • Step 4 Derive DNEL and treshold concentration

7
Human health hazard assessment
  • Step 1 Evaluation of other information than on
    man
  • Identification of hazard based on all available
    non human information
  • Determine quantitative relationship between dose
    (concentration) and respons (effect)

8
Human health hazard assessment
  • If not possible then semi quantitative or
    qualitative
  • Describe all information (preferentially tabular)
    (LD50, NO(A)EL, LO(A)EL)
  • If different studies available, use the one
    raising the highest concern

9
Registration
10
Registration
11
Human health hazard assessment
  • Step 2 Evaluation of information on man
  • If nothing available, mention this explicitky

12
Human health hazard assessment
  • Step 3 Classification and labelling
  • Directive 67/548/EEC, a comparison with the
    criteria of CMR substances category 1 or 2 must
    be evaluated
  • If not sufficient information to determine the
    endpoint, the registrant has to motivate this

13
Human health hazard assessment
  • Step 4 Derive DNEL and treshold concentration
  • Based
  • On results in step 1 - 3
  • Expected exposure routes
  • Time, frequency
  • More than one value may be necessary
  • Take care of relevant human populations
  • Workers
  • Consumers
  • Indirect exposure via environment

14
Human health hazard assessment
  • Upon determination of DNEL treshold
    concentration consider following factors
  • The uncertainty, result of variability
    experiments and interspecies variations
  • The nature and severity of the effect
  • The sensitivity of the human population
    consideredde

15
Physicochemical hazard assessment
  • Objectives
  • Classification and labelling according to
    67/548/EEC
  • Potential effects to human
  • Explosivity
  • Flammability
  • Oxydising potential

16
Registration
17
Environmental hazard assessment
  • Objectives
  • Classification and labelling according to
    67/548/EEC
  • Determine predicted no-effect concentration -
    PNEC

18
Registration
19
Registration
20
Environmental hazard assessment
  • Consider potential effects on the environment
  • Aquatic compartment (including sediment)
  • Terrestrial compartiment
  • Atmospheric compartiments
  • Possible effects via food chain accumulation
  • Potential effects on microbiological activity of
    sewage treatment

21
Environmental hazard assessment
  • The hazard assessment comprises three steps
  • Step 1 Evaluation of information
  • Step 2 Classification and labelling
  • Step 3 Derivation Predicted No-Effect
    Concentration (PNEC)

22
Environmental hazard assessment
  • Step 1 Evaluation of information
  • The avaluation shall comprise
  • Hazard identification based on all available
    information
  • Determine quantitative relationship between dose
    (concentration) and respons (effect)
  • If not possible then semi quantitative or
    qualitative

23
Environmental hazard assessment
  • All information shall be briefly commented, if
    possible in table form mentioning relevant test
    results (LC50 or NOEC) and test conditions (test
    duration, route of administration)
  • If different studies available, use the one
    raising the highest concern

24
Environmental hazard assessment
  • Step 2 Classification and labelling
  • Directive 67/548/EEC
  • If not sufficient information to determine the
    endpoint, the registrant has to motivate this

25
Environmental hazard assessment
  • Step 3 Derivation Predicted No-Effect
    Concentration (PNEC)
  • Based on the available informationthe PNEC for
    each environmental sphere shall be established.
    de PNEC voor elk milieucompartiment bepaald. The
    PNEC may be calculated by applying an appropriate
    assessment factor to the effect values (such as
    LC50 or NOEC).
  • If it is not possible to derive the PNEC, then
    this shall be clearly stated and fully justified

26
PBT and vPvB assessment
  • The PBT and vPvB assessment is based on all
    information entered in the technical dossier. If
    the dossier only contains information on the
    endpoints requested for annex V and VI, then the
    registrant has to consider whether additional
    information has to be generated to make the PBT
    vPvB assessment possible

27
PBT and vPvB assessment
  • The PBT and vPvB assessment comprises two steps
  • Step 1 Comparison with the criteria
  • Step 2 Emission characterisation

28
PBT and vPvB assessment
  • Step 1 Comparison with the criteria
  • Compare with the criteria described in annex XII

29
PBT and vPvB assessment

30
PBT and vPvB assessment
31
PBT and vPvB assessment
32
PBT and vPvB assessment
  • Step 2 Emission characterisation
  • If the substance fulfils the an emission
    characterisation shall be conducted comprising
    the relevant parts of the exposure assessment as
    described in Section 5. In particular it shall
    contain an estimation of the quantities of the
    substance released to the different environmental
    compartments during all activities carried out by
    the M/I and all identified uses, and an
    identification of the likely routes by which the
    humans and the environment are exposed to the
    substance

33
Exposure assessment
  • Objective
  • Quantitative or qualitative estimation of
    dose/concentration of substance to which humans
    and environment are or may be exposed. The
    assessment has two steps
  • Step 1 generation of exposure scenarios
  • Step 2 exposure estimation

34
Exposure assessment
  • Step 1 generation of exposure scenarios
  • Iterative
  • For each identified use
  • An exposure scenario gives the operating
    conditions and the risk management measures for
    production and use of the substance in all parts
    of the chain and covering the whole life cycle

35
Exposure assessment
  • Production processes
  • The processes for the identified uses of the
    substances
  • The applied risk management measures by the
    producer
  • The risk management measures to reduce or avoid
    exposure of humans and environment to the
    substance during use, waste, disposal and
    recycling

36
Exposure assessment
  • Step 2 exposure estimation
  • The exposure is estimated for each exposure
    scenario and contains three
  • Estimation of the emission
  • Assessment of chemical fate and pathways
  • Estimation of exposure levels

37
Exposure assessment
  • Emission in all relevant phases of the life cycle
    are estimated taking into consideration the risk
    management measures
  • The characterisation of of possible
    transformation, degradation or reaction products
    and an estimation of the distribution and fate
    shall be done
  • An estimation of the exposure levels for all
    populations
  • Workers, consumers, indirect exposure
  • By each relevant exposure route
  • Inhalation, oral, dermal and combinations
  • Considering
  • Frequencies, duration

38
Risk characterisation
  • The risk characterisation will be done for each
    exposure scenario
  • Looking at the risks for all human populations
    and the environmental compartments

39
Risk characterisation
  • The risk characterisation consists of
  • A comparison of the exposure of each human
    population known to be likely to be exposed with
    the appropriate DNEL and treshold conc
  • A comparison of the predicted environmental
    concentrations in each environmental sphere with
    the PNECs
  • An estimation of the likelihood and severity of
    an event occurring due to the physicochemical
    properties of the substance

40
Risk characterisation
  • For any exposure scenario the risk to humans and
    the environment can be considered to be
    adequately controlled, throughout the lifecycle
    of the substance that results from manufacture or
    identified uses if
  • The exposure levels do not exceed the appropriate
    DNEL, treshold concentration and PNEC
  • The likelihood and severity of an event occurring
    due to the physicochemical properties of the
    substance is negligible

41
Thanks for your attention
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