Chemicals
10 industrial hygiene experts
These ten professionals have worked as industrial hygienists and industrial hygiene leaders inside operating companies. A reader can learn how in-house industrial hygiene teams build and run programs that protect workers from exposure hazards.
Professionals to explore
01—10Andrew C. Johnson, M.S., CIH, CSP
LinkedInExperience: Industrial Hygienist · Chevron Phillips Chemical Company
Industrial Hygienist at Chevron Phillips Chemical Company since 2021. Other roles include Principal Industrial Hygienist at Ascend Performance Materials (2019–2021), HSE Supervisor - Industrial Hygiene at Westlake (2014–2019) and Industrial Hygienist at Phillips 66 (2011–2014).
Brian Cawley
LinkedInExperience: Industrial Hygiene Manager, Americas · Air Products
Industrial Hygiene Manager, Americas at Air Products since 1996. The profile describes implementing and improving IH and ergonomics programs in global manufacturing, services and healthcare, and serving as the global technical lead. Adjunct Associate Professor at Temple University (1997) is also listed.
Deana Schepp
LinkedInExperience: Chemicals Division Industrial Hygiene Leader · Celanese Chemicals, Dallas TX
Former Chemicals Division Industrial Hygiene Leader at Celanese Chemicals, Dallas TX (2001–2003). Other roles include Industrial Hygiene, Process Safety and Product Stewardship at INEOS (2010–2012), Staff Safety & Health Engineer at Celanese Chemicals, Pampa, TX (2005–2009) and Safety and Industrial Hygiene Leader at Celanese Corporation, Dallas TX (2003–2005).
Donna Hannah
LinkedInExperience: Industrial Hygienist · Qatar Chemical Company
Former Industrial Hygienist at Qatar Chemical Company (2007–2009), where the profile describes serving as Site Industrial Hygienist for RAS LAFFAN Olefins Company and completing an Operational Excellence Review of Health and Safety Programs. Former Sr. Industrial Hygienist at LyondellBasell (2001–2007).
Jacob Krzystowczyk
LinkedInExperience: Industrial Hygienist · Albemarle Corporation
HSE Manager at Albemarle Corporation since 2018, a role the profile describes as covering management of health, safety, security and environment, and former Industrial Hygienist at Albemarle Corporation (2013–2018). Industrial Hygienist at Aerotek (2012–2013) is also listed.
Jeremy DeWitt
LinkedInExperience: Global Industrial Hygiene and Occupational Medicine Senior Manager · IFF
Global Industrial Hygiene and Occupational Medicine Senior Manager at IFF since 2021, where the profile describes designing and owning a multi-year global EHS roadmap for Industrial Hygiene and Occupational Health that embeds risk management and exposure prevention into corporate EHS and business strategy. Former Industrial Hygiene Program Manager at DuPont (2014–2019) and Corporate Industrial Hygiene Senior Consultant at DuPont (2019–2021).
Jessica Miller
LinkedInExperience: Industrial Hygiene Regional Manager · Dow
Industrial Hygiene Regional Manager at Dow since 2024 and former Industrial Hygiene Technologist Lead at Dow (2016–2024). Health and Safety Technician at Dow (2011–2016), Process Technician at Dow (2010–2011) and Lab Process Technician at Dow (2010) are also listed.
Matt Jackson
LinkedInExperience: Regional Industrial Hygiene Program Owner, America s Compounding · Celanese
Regional Industrial Hygiene Program Owner, America s Compounding at Celanese since 2018. Other Celanese roles include Sr. Engineer, Safety & Industrial Hygiene (2017–2018) and Site Industrial Hygienist (2014–2017). Industrial Hygienist at RCS Staffing (2011–2014) is also listed.
Nameer Youssef MS, CSP, CIH
LinkedInExperience: Corporate Manager, Industrial Hygiene & Health · TPC Group
Corporate Manager, Industrial Hygiene & Health at TPC Group since 2021. Other roles include Corporate SHE-Industrial Hygiene & Safety Manager at INEOS Olefins & Polymers (2018–2021), Senior Industrial Hygienist at Kinder Morgan, Inc. (2016–2018) and Corporate Safety Engineer Industrial Hygienist at Nexeo Solutions (2014–2015).
Sara Joswiak, MPH, CIH
LinkedInExperience: Regional Industrial Hygiene Specialist · Dow
Former Regional Industrial Hygiene Specialist at Dow (2016–2018). EH&S Expertise Improvement Manager at Dow since 2018, Heath and Safety Specialist at Dow (2011–2016) and Environmental Health and Safety Specialist at Leica at Danaher (2011) are also listed.
Choose the right perspective
Match the person's scope to yours, since running industrial hygiene at a single site is different from setting a regional or corporate program across many plants. Also decide whether you need hands-on help with exposure assessments or with program design and governance, and pick someone whose roles centered there.
Questions to take into the conversation
- 01How do you decide which exposure assessments to run first at a site with many hazards?
- 02What does a strong industrial hygiene program look like when it is working well?
- 03How do you get plant managers to act on industrial hygiene findings?
Reaching industrial hygiene experts
How can I contact one of these industrial hygiene experts?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 9 companies, including Chevron Phillips Chemical Company; Air Products and Celanese Chemicals, Dallas TX, based on profile data retrieved on October 4, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach industrial hygiene experts?
You choose the offer, starting at $5 per person. It includes Instant Expert's 20% fee, so an offer that pays the person $100 costs you $125. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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