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Subject: Re: [DCHAS-L] DCHAS: Mothers-to-be in organic chem labs.

Date: Sep 10, 2025 13:59 UTC

Author: Tricia Hahn <00002052ceec6afa-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>

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Subject: Re: [DCHAS-L] DCHAS: Mothers-to-be in organic chem labs.

Date: Sep 10, 2025 15:23 UTC

Author: Harry J. Elston <helston**At_Symbol_Here**MIDWESTCHEMSAFETY.COM>

From: Jonathan Klane <jklane1**At_Symbol_Here**ASU.EDU>

Subject: Re: [DCHAS-L] DCHAS: Mothers-to-be in organic chem labs.

Date: Sep 10, 2025 14:47 UTC

Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>

Message-ID: <CANkUwArXTv7QGc2kM2c7X07O9mQtep68BY8rPLddLiz+xiiwRw**At_Symbol_Here**mail.gmail.com>

In-Reply-To: <CAFCR6uZfrrkua7xpo_SZXMH18FzR52cZJLf=4V_yjtLysKBD=g**At_Symbol_Here**mail.gmail.com>

Demystify: 
Hi David, 

First, I'm so sorry for your student's pregnancy losses - how heartbreaking.  And congratulations on the joyful news that she's expecting!  

Your institution needs a Fetal Protection Policy (FPP).  They've been around for quite a while - I can recall them back in the '90s.  

While at ASU, our office helped students who let us or their PI or instructor know that they were pregnant or trying to get pregnant. Our chemical safety specialist would review their inventory and usage plans for which ones were teratogens or reproductive toxins.  Note: SDSs don't always indicate this so other resources are needed. 

We encouraged the student/researcher to also discuss it with their doctor/ob-gyn, provide the list of teratogens, and discuss to what degree she works with those chemicals. We also have re-organized the lab's processes, layout, where she'd work, etc. to avoid errant exposures to vapors, gases, fumes, etc. We'd then work with her to implement her doctor's recommendations (and possibly more protective measures). 

Given that the naphthalene odor in your lab was noticeable, it sounds like the ventilation and/or fume hood (or its use) were inadequate to control and contain the exposures.  These factors should be evaluated and corrected.  And face velocity isn't an indicator of containment, so don't rely on it.  

This may seem like quite a bit, but trust me, when our student researcher carried her first baby to full-term and both were healthy, it was worth all our efforts. 

Good luck!
Jon

Jonathan Klane, M.S.Ed., CIH, CSP, CHMM, CIT
Storytelling Consultant 

PhD candidate, Human + Social Dimensions of Science + Technology
College of Global Futures
School for the Future of Innovation in Society


On Wed, Sep 10, 2025 at 6:21 AM David EldrEdge <Dave.EldrEdge**At_Symbol_Here**naltic.com> wrote:

Dear DCHAS Colleagues,

I'm a part time adjunct lab instructor at a community college. I would appreciate your advice on a situation in my organic chemistry teaching lab today.

One of my students confided last semester (in general chemistry II) that she has experienced multiple early pregnancy losses over the years and how heartbreaking that was for her. Now today, a brand new semester, in organic chemistry, she shared the joyful news that she is expecting and asked if there are concerns with her working with or handling today's lab materials.

I reached out to a nearby more experienced colleague just down the hall but received little direction beyond the idea that she should avoid handling chemicals directly and instead contribute through documentation and observations while her partner does the manipulations.

Today’s experiment was a simple extraction using naphthalene and benzoic acid, but the naphthalene odor became more noticeable as the first hour progressed even with good ventilation and fume hood use. Out of caution, I excused her from the lab after reviewing information that indicates naphthalene fumes can be problematic during pregnancy.

I would like to know from this group:

  • Do your institutions have written policies or guidelines for mothers-to-be in teaching labs?

  • Are there specific substances (like naphthalene or common solvents) you flag as higher-risk during pregnancy?

  • How do you balance protecting health while still supporting a student’s educational progress?

Given her personal history, I want to be proactive in safeguarding her well-being while keeping her on track academically. Any perspectives, examples, or resources would be very helpful.


David EldrEdge
Co-Owner
NALTIC Industrials, LLC
888.891.0077 Main
435.503.4972 Cell
435.767.7714 Google Voice & Text
435.654.2727 Fax


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