Protocols for Substituting and Eliminating Methylene Chloride

Summary

Environmental Health & Safety (EH&S) has established protocols for substituting and eliminating methylene chloride, as well as a worker chemical protection plan.

Body

Question

How is USD complying with the new EPA ruling on Methylene Chloride?

Answer

  1. The EPA determined that methylene chloride poses an unreasonable risk to human health or the environment following review under Toxic Substance Control Act (TSCA) regulations. Environmental Health & Safety (EH&S) has established protocols for substituting and eliminating methylene chloride, as well as a worker chemical protection plan. Table 1 below outlines the new exposure limits for Methylene Chloride.
Table 1: Comparison of the OSHA methylene chloride exposure limits to the new EPA rule
Rule OSHA New EPA
8-Hour Time Weighted average (TWA) 25 ppm 2 ppm
15-Minute Short Term Exposure Limit (STEL) 125 ppm 16 ppm
Action Level 12.5 ppm 1 ppm

Additional resources, including what these new limits mean for your application, can be found in the attached Environmental Health & Safety Methylene Chloride Fact Sheet

Please reach out to Environmental Health & Safety at EHS@usd.edu for questions and additional resources

Details

Details

Article ID: 9461
Created
Thu 12/26/24 9:56 AM
Modified
Thu 12/26/24 10:02 AM
KCS Article Status
WIP: Only Problem & some Environment captured
Not Validated: Complete & Resolution captured, confidence lacks in structure, content, no feedback
Validated: Complete & reusable, used by licensed KCS user, confidence in resolution & std. compliance
Validated

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pdf

Methylene Chloride Fact Sheet.pdf Computer

Thu 12/26/24 8:59 AM
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