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EH&S Considerations for Drop-In Alternatives to TCE

EH&S Considerations for Drop-In Alternatives to TCE. Mary Butow Research Assistant, TURI. EH&S Considerations for Drop-In Alternatives to TCE. Overview of Standard Hazard Criteria Do TCE, Perc, & nPB have anything in common? EPA Information Studies on nPB Comprehensive Solutions

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EH&S Considerations for Drop-In Alternatives to TCE

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  1. EH&S Considerations forDrop-In Alternatives to TCE Mary Butow Research Assistant, TURI

  2. EH&S Considerations for Drop-In Alternatives to TCE • Overview of Standard Hazard Criteria • Do TCE, Perc, & nPB have anything in common? • EPA Information • Studies on nPB • Comprehensive Solutions from an EH&S perspective Toxics Use Reduction Institute University of Massachusetts Lowell

  3. Criteria Overview • Science Advisory Board • Environment – Physical Characteristics • PBT • Vapor Pressure • Flashpoint • NIOSH-REL; OSHA-PEL; TLV-TWA • Health – Inherent Hazards • IARC • Mutagenicity/Carcinogenicity/Neurotoxicity • Reproductive/Developmental Toxicity • LC50/LD50 Toxics Use Reduction Institute University of Massachusetts Lowell

  4. Identified 20 alternative drop-in solvent degreasers Six Classes of Chemicals Hydrochlorofluorocarbon Hydrofluorocarbon Hydrofluoroethers n-Bromopropane Volatile Methylsiloxanes Dichloroethylene Identified Drop-In Solvents *Replaced Solvents Toxics Use Reduction Institute University of Massachusetts Lowell

  5. TCE – PCE - nPB? Toxics Use Reduction Institute University of Massachusetts Lowell

  6. TCE – PCE - nPB? Toxics Use Reduction Institute University of Massachusetts Lowell

  7. TCE – PCE - nPB? Toxics Use Reduction Institute University of Massachusetts Lowell

  8. Information for Some Solventsfrom EPA study

  9. Data considered by EPA CITED FROM Federal Register Vol. 72, No.103, May 30, 2007 pg 30147 Toxics Use Reduction Institute University of Massachusetts Lowell

  10. Significant New Alternatives Policy (SNAP) Toxics Use Reduction Institute University of Massachusetts Lowell

  11. How is EPA proposing that nPB may be used? * Data from a number of facilities and from modeling indicate likely exposures in excess of potentially protective levels, and therefore, unacceptable health risks for users of nPB-based adhesives and aerosols. Toxics Use Reduction Institute University of Massachusetts Lowell

  12. EPA Text CITED FROM Federal Register Vol. 72, No.103, May 30, 2007 pg 30147 Toxics Use Reduction Institute University of Massachusetts Lowell

  13. Volatile Methyl SiloxanesDow – OS 10, OS 20, OS 30 Insufficient information does not imply safety! Further research is critical for proposed alternatives. Toxics Use Reduction Institute University of Massachusetts Lowell

  14. nPB as an option • NIOSH Epidemiological study • Who? • When? • Why? • What? • How? • Next steps • ANA Study • EPA study • LD50 data • Observed Effects on Animals & Humans Toxics Use Reduction Institute University of Massachusetts Lowell

  15. TUR Options • Input Substitution • Production Unit Modernization • Product Reformulation • Production Unit Re-design or Modification • Improved Operations & Maintenance • Integral Recycling Toxics Use Reduction Institute University of Massachusetts Lowell

  16. Informed Decisions • Resources available for EH&S data • Toxicology • PBT Profiler • TURA Program • Bibliographies of Current Studies • Disposal Issues • Continual Process Improvement • Regulation • Count the Cost Toxics Use Reduction Institute University of Massachusetts Lowell

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