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Phase 1: Substance selection
All substances put on the market in quantities exceeding one ton per year are recorded in an inventory. Smaller tonnages of particularly hazardous substances are also recorded.
Phase 2: Gathering of information
All available information about the substances selected is collected. This includes basic data (name of substance, CAS no., structural formula, classification, labeling, and so on), information on the intrinsic properties of the substance (physico-chemical, toxicological, and ecotoxicological), as well as exposure information and information on the use of the substances.
Phase 3: Prioritization of substances
In phase 3, the substances recorded are prioritized based on the information obtained in phase 2. In accordance with the guidance from the ICCA (International Council of Chemical Associations), the substances are categorized in four priority levels.
Phase 4: Completion of information
A different depth of data and information is required for an appropriate risk assessment depending on the priority level. More information is required for a substance in stage 1 than for a substance in stage 4. In this step, the potential data gaps are resolved and closed. Here, Evonik tries to avoid animal testing where possible.
Phase 5: Hazard assessment for people and the environment
The hazard assessment examines a substance's potential to injure people and damage the environment. The physico-chemical, toxicological, and ecotoxicological properties of a product are evaluated and limits are set where possible.
Phase 6: Exposure assessment
The exposure assessment examines the type and extent of the risks humans face when exposed to a substance or, if applicable, its secondary products. The entire lifecycle of the substance, up to disposal, is considered. Estimating human exposure to the substance during production, use, and final consumption is particularly important.
To assess environmental exposure, the principal points of entry into the environment must be adequately evaluated, among other things. The depth of detail in an exposure assessment depends on the product's intrinsic risk potential.
Phase 7: Risk assessment
The risk assessment is based on the results of the hazard assessment and the exposure assessment and evaluates the likelihood of injury to humans and damage to the environment. It analyzes the daily routine in connection with the production, marketing, use at the customer, recycling, and disposal.
Phase 8: Derivation of risk management measures
Suitable risk management measures are derived from the results of the risk assessment and implemented. The effectiveness of the risk management measures defined is periodically reviewed, with existing measures being adapted where necessary. If the assessment shows ways of optimizing the product, these are pursued where economically viable. The measures defined are documented.
The results of the risk assessment and the measures taken will be appropriately communicated.
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