All posts by Ralph Stuart

DCHAS-L Reader Survey 2020 Results Overview

One of the most important benefits of joining the Division is a subscription to the Division’s technical e-mail list, DCHAS-L. The list is an active discussion (10-20 messages/week) of technical, regulatory, management and resource issues. To get a sense of the topics discussed, you can see the archives of the list at http://www.ilpi.com/dchas/ For more information, or to request a trial subscription, contact Ralph Stuart at membership@dchas.org

The DCHAS-L e-mail list is an important CHAS membership benefit. In order to help us make it as useful to you as possible, please take a few minutes to complete the survey below to help us continue to improve it over time. This is a brief snapshot of the results of a survey of its members that took place in spring, 2020.

  • About half of the list identifies academia as its primary affiliation.
  • A majority of the respondents have been on the list for more than 5 years.
  • We asked about how people felt about the emphasis of the discussions on the list; the responses indicated a general comfort with the current distribution of topics, with some sentiment for more general news and information over discussion of specific questions.
Total of 101 responseToo highAbout rightToo low
Daily limits of 15 messages/day13853
Discussion of specific questions12872
Discussion of general chemical safety questions2963
Discussion of broader health and safety questions6887
HAZMAT headlines7886
ACS and CHAS news1936
News from government agencies and professional societies28411

The final two questions were more general;

  • 85% of the respondents are satisfied with the current scope of the list. Issues that people are interested in more focused discussion of include lab safety issues, academic safety issues and sustainability.
  • Final, a variety of free form comments about the list were received. They include questions, suggestions and positive feedback about this list. These responses are summarized in the tables below.
  • Questions:
QuestionResponse
With a limit of 15, are there comments that don’t get posted? What happens if there are more than 15?Few comments don’t get posted. If there are more than 15 messages in one day, remaining messages are distributed the next morning.
What is the reason for having a max listing? You seem concerned about that. If there is a topic that generates a lot of input why not let the comments flow?Lists with uncapped message traffic are a challenge for people who might not be immediately interested a “hot topic” by filling their e-mail box. 15 messages/day allows conversations to flow while avoiding becoming unmanageable.
Is the list searchable for previous discussions?Yes, the archives can be searched at the ilpi.com web site at http://www.ilpi.com/dchas/
I also enjoy the archive. It would be nice if there was some way to tag the emails to help improve the search or topic.We have thought about how to organize the archives for easier searching a couple of times, but the unstructured format of the list discussions make this a bigger challenge than we have resources to implement.
I recall that at one time there was a Digest option so that all of the notes posted for a single day appeared in a single note.  Yes, there is a DIGEST option that collects all of a day’s traffic into a single e-mail. If you are interested in this option, contact me at membership@dchas.org and I can adjust your list settings accordingly.
  • Suggestions:
It would be nice if people being part of the list focused more in safety in general and leave politics, and personal opinions on the side since this interrupts the flow of fact information and safety knowledge growth.
Some of the emails that get through screening really baffle me. There have been some really disrespectful and dismissive things that members have said, generally things that do not pertain to chemical safety (or safety at all), that have made it through. And that’s not even touching on some of the political arguments that have gone on.
I answered the above survey in terms of my personal needs.  I don’t have enough familiarity with the whole to weigh that in my consideration.
I still find it serves the purpose. Some discussions get a bit too political and need to be better moderated. Otherwise I’m pleased to subscribe. 
Please moderate more heavily to keep people on topic. Many times the conversation devolves into infighting about politics or generational divides. It’s a massive waste of time. Please only allow chemistry and safety chatter.
Some of the back and forth on the list is a bit much. I just delete them.
The “congratulations” emails for officer appointments, awards, etc. are not suited for wide-spread distibution. They should be forwarded to the individuals being congratulated only.
continue to balance the volume of content 
One issue is we waste too many emails on pithy opinions and fast comebacks.
Would like to see more industry involvement. But I understand restrictions on employees, liability issues, other factors limiting industry participation.   Too much litigation harms more people than it protects. 
Too many reaction emails.  I can tell its a lot of college people with time on their hands.   This shouldn’t be a chat room but a lot treat it like that.  I love it otherwise.
  • Positive Feedback:
Some of the answers given to various questions are really great and make me think of other ways to do things at my own institution. This is a great resource!
Many times the emails do not apply to what I am doing, but it is nice to keep on top of the current Chemical Health and Safety. I posted a question in the past and was amazed at the help I received. Thank you.
good resource for sharing information among safety professionals
This list is vital for my continued learning in the field, as I don’t have much formal training in safety, and I don’t have expert colleagues to lean on. 
Fantastic job; I learn so much from this and am very grateful for this group and its expertise.
I’ve been very happy with the content and volume of traffic on the DCHAS list. Thank you for managing the list!
This is a great service to the safety community!
I love it. Thank you.
Excellent service!  Many interesting articles, features,
Thank you – I appreciate this resource
Thank you for the info!
Great service, interesting to get so many viewpoints
Overall great resource – Thanks!
greatly appreciate the  shared information
Love this list! Thanks for running it 🙂
I LOVE the listserv and appreciate all who maintain and contribute to it
Thank you for managing 
We’ve been cut to zero spending in NYS, I feel all our subscriptions will be cut, ACS, CSHEMA, etc. There’s only two of us and we need you!
Thank you for your work.
Love it
Like the diversity of issues and perspectives  
Yes, Thank You, the list seve and archives are a valuable resource
I think it serves an important role VERY WELL!
Good job, thanks
Well done and useful
I like the “chatty” aspects of the conversations, especially in these social isolation times. 
Mostly thoughtful and useful content from prominent professionals.
I think the summary service you provide is relevant and is great. Keep doing what you have been doing.
I think you are doing a wonderful job! I read almost every email on health and safety that I receive. 
My thanks go out to everyone involved with keeping it vibrant!
Very informative. It is great to see contributions from experts in so many areas of safety. Participants get lots of info in response to their inquiries.
I appreciate the efforts that go into the listserve and find it a very good resource.  thank you
I enjoy the post and it is a means of keeping current as well as broadening my scope of knowledge. Keep up the good work.
Excellent resource!
I love all the info I learn reading the various postings.  Have especially appreciated the recent covid-19 discussions.  Thanks.
I love the list.  As a former chemist and current IH to the arts, I find most of what you discuss applicable in some way.  And you let me chime in.
1. THANK YOU SO MUCH FOR DOING THIS!  2. Although  I do often struggle to keep up with it, it does serve as “continuing education” for me.  It is in a word, fantastic.  Although I did mark the “Hazmat posts” as “excessive,” I do often clip and share particular ones as alerts or reminders to colleagues, family members, or friends.    I don’t know how you do it,  but please keep it up.  It is very much appreciated.”

If you have questions or thoughts to add to this list, let us know at mailto:membership@dchas.org

March, 2020 Call for comments on ISEA eyewash & safety shower standard

 

CHAS recommends that its members consider commenting on the current proposal to reaffirm the American National Standard for Emergency Eyewash and Shower Equipment (ANSI/ISEA Z-358.1) with no revisions. 

A Word template for a letter with suggested wording for  such a comment can be found below.

Questions and comments on this letter can be directed to Sammye Sigmann <sigmannsb@appstate.edu> or Mary Beth Koza <MBKoza@ehs.unc.edu>

Spring 2020 CHAS Workshops update

Dear Philadelphia CHAS Workshop registrants,

As you may have already heard, the ACS has made the tough decision to cancel the Philadelphia National Meeting, which means our workshops will not be held. We are obviously disappointed by this turn of events due to the coronavirus, but as ACS pointed out in their cancellation notice, safety is now a core value of the Society, and this is the safest decision for all involved.

If you have already paid the registration fee, you may either defer that registration to the San Francisco meeting in August or the San Antonio meeting in March 2021, or cancel and request a refund.

Please reply to bothRuss Phifer rphifer@wcenvironmental.com, Mary Beth Koza mbkoza2@gmail.com with how you’d like to proceed. Thank you for your patience while this decision was being made.

Please note that the Developing Graduate Student Leadership Skills in Laboratory Safety workshop will be held virtually. 

Time: Sunday, March 22. 3 to 6 PM
On line

The American Chemical Society is sponsoring a program to help educate graduate students about lab safety culture and opportunities for promoting safety in their schools. The workshop will be held at the Fall National ACS Meeting and participants will be awarded a certificate that can be noted on their resumes.

This three-hour workshop will be led by Jessica Martin and Veronica Hayes, graduate students at the University of Connecticut and Victor Beaumont, currently at Pfizer and formerly at Yale University. The purpose of this workshop is to help develop individualized plans for the creation or improvement of student safety programs. You can read more about the results of previous workshops in this Journal of Chemical Health and Safety article. Other key topics include hazard assessment, risk management, safety management practices, and complementary top-down approaches. This workshop is primarily directed at graduate student issues, but faculty and staff are encouraged to participate. 

You can download this poster to share here

This workshop is sponsored by the ACS Safety Programs and the ACS Office of Graduate Education, with technical support provided by the leadership of the ACS Division of Chemical Health and Safety.

Information on CHAS Professional Development Workshops can be found here.

Graduate Student Safety Leadership workshop$25 registration

Registration Notes:

One person may register for multiple workshops on a single Registration form. If you have more than one person to register using the same credit card or billing method or if you need help with the registration process, please contact Russ Phifer at 610-322-0657 or rphifer@wcenvironmental.com You will receive a confirmation that your registration has been submitted immediately upon registering. You will be sent a confirmation of registration email as soon as your registration is reviewed. Please contact 610-322-0657 if you do not receive the confirmation within four working days.

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Conditions and Cancellation/Refund Policy

Upon verified registration, information will be sent to each participant containing specific location information of the workshop. Registrants may send substitutes are necessary. Full refund available for cancellations up to three (3) weeks prior to workshop date. 50% refund up to one (1) week prior to workshop. Cancellations made less than seven (7) days prior to workshop start date will be charged, but an 80% credit may be applied toward a future program. No-shows receive no credit and will be billed.

ACS Webinar: Meaningful and Concise Safety Summaries for ACS Publications

The chapter discussed in this webinar is
now available at this link

Safe research is good research. Scientists have an ethical obligation to disseminate safety concerns to downstream users of their research. As the premier journals for disseminating chemical research, ACS Publications has enacted a new requirement specifying that authors address safety concerns in work submitted for publication in all American Chemical Society Journals.

Our speakers:

Sammye Sigmann, Appalachian State University
Leah McEwen, Cornell University
Sara Tenney, ACS Publications

Join Samuella Sigmann of Appalachian State University and the ACS Division of Chemical Heatlh & Safety, Leah McEwen of Cornell University and the ACS Division of Chemical Information, and Sara Tenney of ACS Publications as they discuss the new chapter “Communicating Safety Information” from the 2020 ACS Guide to Scholarly Communication. During this webinar, you will discover how to develop meaningful and concise safety summaries for manuscripts based on risk assessment.

Fall 2020 Abstracts now Open!

San Francisco Call for Abstracts
is Now Open

Moving Chemistry from Bench to Market
August 16 – 20   |   San Francisco, CA

Go to https://www.acs.org/content/acs/en/meetings/national-meeting/abstract-submission.html to submit an abstract. The CHAS symposia proposed for the San Francisco meeting are found at https://callforpapers.acs.org/sanfrancisco2020/CHAS

A sampling includes:

  • Safety Considerations in Scaling up of Chemical Reactions
  • Safety in Makerspaces: Developing a Sustainable Safety Culture
  • Incident Case Studies: A Principle Investigator’s Perspective
  • How do I Develop, Grow  & Sustain a  Safety Culture?
  • Developing a Safety Culture from StartUp to ScaleUp
  • Cannabis & the FDA: Preserving Public Trust & Demanding Accountability

We look forward to seeing you in August!

JCHAS Editor's Spotlight: A 4 Way Tie!

The JCHAS Editor’s Spotlight for the November / December 2019 issue of the Journal of Chemical Health and Safety is shining on 4 articles, all written by former chairs of the Division!

The first presents an innovative approach to assessing heat stress concerns while wearing personal protective equipment.

Then there is a suite of three articles that describe safety culture development programs in variety of settings (undergraduate instruction, academic research support, and industrial laboratory settings).

In addition, there are articles assessing the impact of safety cultures in several settings and 4 articles on interesting approaches to improving ventilation in chemical settings.

Note: This is the final issue of JCHAS that is published under the Division’s contract with Elsevier. Starting in 2020, the Journal will be published by the American Chemical Society’s publications division. This will change how members access the journal. Let me know if you have any questions about this change.

Journal of Chemical Health and Safety,
November–December 2019

Editor’s Spotlight: Predicting and preventing heat stress related excessive exposures and injuries: A field-friendly tool for the safety professional
Harry J. Elston, Michael J. Schmoldt

Editor’s Spotlight: Industrial lab safety committees and teams — Case study
Kenneth P. Fivizzani Pages 71-74

Editor’s Spotlight: DiSCO — Department Safety Coordinators and Officers: Building Safety Culture
Victor Duraj, Debbie M. Decker Pages 84-88

Editor’s Spotlight: Incorporating chemical safety awareness as a general education requirement — Case study
Frankie Wood-Black

Chemistry laboratory safety climate survey (CLASS): A tool for measuring students’ perceptions of safety
Luz S. Marin, Francisca O. Muñoz-Osuna, Karla Lizbeth Arvayo-Mata, Clara Rosalía Álvarez- Chávez

Assessing graduate student perceptions of safety in the Department of Chemistry at UC Davis
Brittany M. Armstrong

Use of Lean Six Sigma methods to eliminate fume hood disorder
Hugo Schmidt

Computational fluid dynamics (CFD) modelling on effect of fume extraction
Kar Yen Sam, Siong Hoong Lee, Zhen Hong Ban Pages 20-31

Anatomy of an incident: A hydrogen gas leak showcases the need for antifragile safety systems
Hugo Schmidt

Cleaning diamond surfaces using boiling acid treatment in a standard laboratory chemical hood
Kimberly Jean Brown, Elizabeth Chartier, Ellen M. Sweet, David A. Hopper, Lee C. Bassett

In Your Face: Consideration of higher risks for chemical exposure to persons with disabilities in laboratories
Janet S. Baum, Amie E. Norton

Lessons learned — Vacuum pump fire
Elizabeth Czornyj, Imke Schroeder, Nancy L. Wayne, Craig A. Merlic

Pilot study predicting core body temperatures in hot work environments using thermal imagery
Jacob B. Thomas, Leon Pahler, Rodney Handy, Matthew S. Thiese, Camie Schaefer


ACS Chemical Health & Safety Now accepting Submissions!

ACS Publications is pleased to announce the upcoming launch of ACS Chemical Health & Safety, a global journal devoted to recognizing the importance of safety within the chemistry ecosystem.

ACS Publications is pleased to introduce ACS Chemical Health & Safety. The journal focuses on publishing high-quality articles of interest to scientists, EH&S professionals, and non-research personnel who manage or work in areas where chemicals are used or hazordous waste is generated. Examples submissions to the new journal may include:

  • Scientific reports that describe and analyze a scenario in the form of a case study
  • Methods, protocols, or best practices for safety procedures
  • Evaluation of potential safety hazards associated with common reactions or procedures
  • Reviews of the literature, resources, regulations, or methodologies
  •  Other research or scholarly discussions on topics of interest to the chemical health and safety community

Mary Beth Mulcahy, PhD, Editor-in-Chief

“The chemical safety community is so diverse, extending beyond scientists and other practitioners to include students, environmental health and safety professionals, managers, regulators and others,” says Mulcahy. “I am excited to lead the journal as it embraces the sharing of best practice and new ideas under the auspices of the ACS.”

The Development Editor of the Journal is Dr. Kali Miller.

Key Chemical Safety Education Resources

About this list

In March, 2019 the ACS held its second “Safety Summit” on the topic chemical safety education. These links provide more information about the summit’s structure, participants, exploratory questions and outcomes. Questions about the summit can be directed to Ralph Stuart, the chair of the ACS Committee on Chemical Safety at ralph@rstuartcih.org

As part of the preparations for this meeting, a list of chemical safety education resources was compiled. These resources cover different chemical use scenarios, primarily in teaching and research laboratories. This list is provided here as a service to the chemistry safety education community (you can download it below). If you know of a resource that you think should be on this list, please let us know inthe comments section below or via e-mail at membership@dchas.org

Guidance Documents from ACS Committees

Guidelines for Chemical Laboratory Safety in Secondary Schools

audience: high school educators
authors: ACS Committee on Chemical Safety
last update: 2016

This publication includes 53 learning outcomes for students and clear, concise explanations for teachers on select safety topics including basic safety information, RAMP, GHS, Fire Safety, NFPA, hazardous waste, and SDSs.

ACS Guidelines and Recommendations for Teaching Middle and High School Chemistry

middle and high school educators SOCED 2018
Laboratory safety is included in these Guidelines with information on safety equipment and references as well as a discussion of “RAMP” principles. Revised in 2018.

ChemMatters Online

high school educators ACS staff online

In addition to articles related to high school chemistry education, this page includes links to key safety education resources for this audience.

Better Rainbow Demonstration
high school students and educators ACS Education and Scientific Advancement Divisions 2016; forthcoming
The videos introduce chemical safety to the high school students and provide additional overview of some issues related to the safe use of chemicals in the high school environment.

ACS Guidelines for Chemistry in Two-Year College Programs

two-year colleges educators SOCED 2015
In addition to sections on Safety Culture and Laboratory Safety, the development of a safety culture in the institution is woven throughout the Guidelines.

Guidelines for Chemical Laboratory Safety in Academic Institutions

undergraduate-graduate educators CCS 2016
This publication presents 104 chemical safety learning objectives for undergraduate curriculum designers and instructors and outlines how learning should progress into graduate education based on RAMP. Published in 2016.

ACS Approval Program for Bachelor’s Degree Programs includes the Guidelines and supplements to the Guidelines.

undergraduate educators CPT 2015 and 2017
The Guidelines represent the requirements for a department to offer an approved bachelor’s degree program, and the characteristics of that program, including a mandatory safety skills requirement for the department to follow, and the students to learn about. The Safety Supplement to ACS Guidelines: describes in further detail the aspects of safety development that a program must implement, and for the students to understand as part of their education in chemistry.

Safety in Academic Chemistry Laboratories

first- and second-year undergraduate students CCS 2018
This 8th Edition of the CCS flagship publication Introduces RAMP and communicates practical laboratory safety information to first- and second-year undergraduate students. Includes Arabic translation.

ACS Exams Institute Draft Safety Exam

undergraduate educators ACS Exams Institute Forthcoming
Currently (spring 2019) in trial testing, this 60 item multiple choice exam is designed to address safety topics typically addressed during the first two years of undergraduate chemistry coursework.

Teaching Chemical Safety and Information Skills Using Risk Assessment

undergraduate educators ACS Symposium Series 2016
Part of in Integrating Information Literacy into the Chemistry Curriculum, this chapter demonstrates how risk assessment (JHAs) can be used to teach information skills and safety competencies by providing rationale and examples (including assessment data) which can be incorporated into undergraduate learning..

Identifying and Evaluating Hazards in Research Laboratories publication and website

undergraduate and graduate researchers CCS 2014
This online reference presents a detailed introduction to the academic research community on risk assessment and provides practical examples using five techniques: Control Banding, Job Hazard Analysis, What-if, Checklists, and SOPs.

Laboratory Risk Assessment video

research laboratories CHAS 2018
Emphasizes importance of conducting a risk assessment of laboratory work and maintaining situational awareness as laboratory work proceeds.

Graduate Student Workshops

graduate students and faculty CHAS ongoing
A three-hour workshop for graduate students and faculty about developing and maintaining laboratory safety programs in the research setting. Offered at the ACS National Meeting. Started in 2018 and ongoing.

Accessibility in the Laboratory

all levels of education ACS Symposium Series 2018
A valuable update to the 2001 edition of “Teaching Chemistry to Students with Disabilities: A Manual for High Schools, Colleges, and Graduate Programs”, this symposium book integrates safety into broader best practice discussions for students with a range of accessibility issues, including topics such as visual and hearing impairments, invisible and physical disabilities, service dogs, and more.

ACS Style Guide Safety Chapter

Forthcoming. authors and reviewers ACS Pubs
The 2019 Edition of the ACS Style Guide will include, for the first time, a chapter designed to provide guidance for authors and reviewers on how to prepare and include publication appropriate safety summaries in manuscripts.

CHED Demonstration Guidelines

educators and students. All levels. CHED 2016
A concise set of guidelines to aid experienced chemical practitioners in considering all components of demonstrations, including special notes for transportation and communication as well as best practices before and during a chemical demonstration.

Journal of Chemical Health and Safety

safety professionals CHAS ongoing
JCHAS is a peer-reviewed journal that addresses chemical safety education topics among other topics chemical safety professionals are involved

The DCHAS-L e-mail list

CHAS members CHAS ongoing
The list is available to members of the Division and provides an active discussion of technical and cultural issues faced in improving safety practices in all workplaces, with an emphasis on labs

CHAS Professional Development Workshops

safety professionals CHAS ongoing
Daylong workshops for chemical safety professionals at national and regional meetings covering regulatory and technical topics.

C&EN SafetyZone blog and safety articles

Chemistry community ACS Publications ongoing
Ongoing coverage of chemical safety related news items

ACS Education Resources with Safety Guidance

Guidelines

(overarching frameworks for organizations to use to build a safety foundation and culture)

Training

(activities to prepare educators and learners to use tools and practice safety, building a safety foundation)

Tools

(resources for demos, classroom activities, and events that develop safety awareness and knowledge)

Information

(introduction to safety concepts, tools, skills, and careers that develop safety awareness and knowledge)

Chemical Safety Education Resources from outside the ACS

Laboratory Safety for Chemistry Students; Hill and Finster, 2016 edition

Laboratory and chemical hazards, routes of exposure, ways to manage these hazards, and handling common laboratory emergencies are covered. Emphasis on the ability to safely use hazardous chemicals in the laboratory by applying safety principles that prevent and minimize exposures.

Prudent Practices in the Laboratory, National Academies Press, 2011

An authoritative reference on the handling and disposal of chemicals at the laboratory level. The revised edition has an expanded chapter on chemical management includes nanotechnology, laboratory security, and emergency planning.

Safe Science
Promoting a Culture of Safety in Academic Chemical Research
, National Academies Press, 2014

Examines the culture of safety in research institutions and makes recommendations for university leadership, laboratory researchers, and environmental health and safety professionals to support safety as a core value of their institutions.

A Guide to Implementing Safety Culture, APLU, 2016

Roadmap for a university-wide effort to strengthen a culture of research safety. The guide has action steps, resources, and recommendations to help navigate the challenge of changing the culture of the institution. Includes reading lists, tools, strategies, illustrative examples, and/or best practices.

Inquiring Safely series, NSTA, 2003

Introduction of General Safety in the classroom for varying levels of education. Encourages safety within a climate of inquiry incorporates inclusion adjustments. Responsibility guidelines included.

Flinn High School Safety products, Flinn Scientific

A variety of products and resources related to chemical safety for teachers. Product site that may be filtered by education level.

Safety Videos library, Dow Chemicals, 2014

Videos that cover industrial safety culture and practices for laboratory safety. Each module covers information that has worked successfully at Dow. It includes basic explanations of the topics and relates them to safety. Dow’s granted ACS an opportunity to use the videos in its upcoming e-learning safety course.

Green Chemistry education web page,
ACS Green Chemistry Institute

Resources and programs give students and educators the opportunity to learn the chemistry concepts and skills that embrace life cycle thinking and provide a foundation for contributing to a sustainable future through chemistry.

US Chemical Safety Board case studies and videos

Videos describing lessons from significant safety incidents, including academic and high school laboratories.

Practical Guide To Chemical Safety in the UK

The web page outlines the practical aspects of chemical safety programs in the UK, where the regulatory context is different than from the US setting.

SERMACS 2019 CHAS Presentations

The 2019 Southeast Regional Meeting hosted a Division of Chemical Health and Safety symposium related to safety culture in the laboratory. The symposium was entitled Teaching, Creating and Sustaining a Safety Culture. This symposium was supported  in part by a Corporation Associates Local Section grant in the amount of $1,000.00 which was used to support the speaker’s travel costs. PDF versions of these presentations of this symposium are available below.

Nurturing a safety culture through student engagement, Ralph House, UNC-CH

Supporting a Culture of Safety with Teachable Moments Melinda Box NC State University

Successful Execution of Top-Down Safety Culture at UNC-Chapel Hill Jim Potts UNC-CH

Collaborative safety training and integrative program development Mark Lassiter Montreat College

Cultivating a culture of safety in undergraduate chemistry labs at UNC Chapel Hill Kathleen Nevins UNC-CH

From rules to RAMP: Embracing safety culture, expanding frontier as a recent graduate Rachel Bocwinski ACS

SOPs, SOCs, and Docs: Developing peer-to-peer safety to fight complacency in synthetic inorganic chemistry Quinton Bruch UNC-CH

Laboratory Safety Culture at UNC-CH Mary Beth Koza UNC-CH