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[Reference values for indoor air: dearomatized hydrocarbon solvents (C(9)-C(14))]
1Behörde für Wissenschaft und Gesundheit, Hamburg. helmut.sagunski@bwg.hamburg.de
Summary
New German indoor air guidelines for dearomatized hydrocarbon solvents/white spirits (DAWS) are established. Based on animal studies, critical health hazard and prevention values were determined to protect public health from DAWS exposure.
Area of Science:
- Environmental Health
- Toxicology
- Occupational Health
Context:
- German Joint Working Group on Indoor Guidelines established guideline values.
- No human data available for dearomatized hydrocarbon solvents/white spirits (DAWS).
- Animal studies identified neurotoxicity, developmental toxicity, and reproductive toxicity as critical endpoints.
Purpose:
- To establish indoor air guideline values for DAWS to protect public health.
- To evaluate risks associated with DAWS exposure based on animal studies.
Summary:
- The pivotal Hass et al. (2001) study informed the risk evaluation.
- Lowest adverse effect level for chronic exposure assessed at 400 mg DAWS/m³ based on developmental toxicity.
- Health hazard value set at 2 mg DAWS/m³ and health prevention value at 0.2 mg DAWS/m³ indoor air, incorporating safety factors for interspecies, intraspecies, and children's physiology.
Impact:
- Provides crucial health hazard and prevention values for indoor air quality.
- Informs regulatory standards and public health protection measures in Germany.
- Highlights the importance of animal studies in setting guidelines when human data is limited.