I think this is a really exciting activity.  Here’s my contribution:

Chemical safety has changed markedly since I was an undergraduate chemistry major. As a senior, I took an advanced organic chemistry course in which each student worked with a different substrate in reactions involving 2,4-dinitrophenylhydrazine - yes, that reagent. At the time, there were no SDS documents to consult or right-to-know laws.

The risks became very real when I was working alone (yes, alone!) fortunately in a fume hood and my reaction mixture exploded. Some of the mixture landed on the lab carpet (yes, carpet!) and ignited. With no formal training in emergency response, it took me several minutes to figure out how to operate a fire extinguisher before I was finally able to put out the fire.

The incident was never discussed afterward (debriefings can be a powerful experience!). Instead, the assistant professor teaching the course wrote up the project and published it with all our names, without asking our permission to be included as co-authors (a separate but notable lapse in professional ethics). My graduate experience, at a leading research institution, was not much better in terms of safety culture.

Today, we have, in many ways, moved to the opposite extreme. I increasingly see teaching laboratories emphasize water-based procedures, provide pre-prepared reagents in labeled containers, and elimination of common tools such as Bunsen burners, scalpels, and syringe needles. While these changes are well intentioned, I am concerned that they may inadvertently limit students’ opportunities to develop the practical judgment and technical competence required to work safely in real-world chemical environments.

We need to pause and ask: what skills do our students actually need to be both safe and productive in industrial and research settings and are we adequately preparing them to meet those expectations?

As we celebrate 150 years of the American Chemical Society, June has been dedicated as the ACS Safety Pillar. I would like to invite members of this vibrant and highly knowledgeable community to join ACS staff in recognizing the remarkable evolution of laboratory safety, becoming a central and integral part of both chemistry education and research.

As scientists, we value data, but stories are also powerful indicators of meaningful and ongoing change.

We would love to hear your perspective.

• How has laboratory safety changed over the course of your career, whether over the past 30, 20, or even 5 years?
• What stands out most to you about this transformation?

Let’s explore this evolution through a personal lens, perhaps by sharing an “I remember when…” moment that captures how practices, expectations, or culture have shifted over time. These reflections can bring our collective progress to life and resonate deeply across our community.

I’m confident there are many powerful stories among us so let’s uncover them together!

One of my stories:

I got my undergraduate degree in Poland, and one of my professors had quite the dramatic introduction to lab safety: he was missing a finger due to a refrigerator explosion in his lab. Our class had about 100 students, and lectures were held in a huge auditorium. During the very first lecture, he proudly displayed his incomplete hand and declared that we were all very brave for choosing chemistry as our future profession. According to him, true scientists should be prepared to make sacrifices at the altar of scientific discovery.

I remember sitting there thinking that perhaps I was not ideal chemist material, since I had no intention of sacrificing any body parts in the name of science.

Of course, after that first lecture, we all laughed about this safety demo, but the professor himself was completely serious. He wore his injury almost like a badge of honor , proof of his “scientific stamina.”

Years later, I heard that his lab was eventually shut down because the refrigerator explosions kept happening, and one of them even destroyed a very expensive piece of instrumentation. I believe he retired shortly after that ban. In hindsight, perhaps the university finally decided that repeated explosions were not an essential component of scientific freedom.

Looking back, what once may have been seen as a “badge of honor” now feels more like a reflection of poor safety practices and a lack of professional responsibility. Today, a faculty member proudly displaying injuries from preventable laboratory accidents would likely be viewed not as a scientific hero, but as a liability to the institution. I hope that, thanks to all our collective efforts, our discipline is evolving. Modern chemistry starts recognizing that good scientists are not the ones who cause and survive accidents; they are the ones who create strong safety cultures so accidents do not happen in the first place.

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