Search Results


  • Toxicology Principles for the Industrial Hygienist

    This book provides an in-depth review of toxicology. It is an excellent source of information on a difficult subject for the exam.

  • Recognition of Health Hazards in Industry: A Review of Materials and Processes

    A great book describing health hazards in a variety of industries. Describes many of the industries where IH really got a strong start. Many of us no longer work in these industries, but there are still questions on the exam based on prevalent...

  • Industrial Hygiene Reference & Study Guide

    I call this the "Little White Book." It is a short list of facts and information on each industrial hygiene subject. It is great for reviewing information, but it won't help much if you haven't studied the material in another text.

  • TLVs and BEIs: Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices

    A must have. Excellent source of information regarding the CIH exam. Recommend reading it cover to cover. Don't try to memorize TLVs, but you should understand the basis for TLVs. It also provides information on many IH subjects.

  • The Industrial Environment - Its Evaluation and Control

    This is considered to be the original "White Book." It was originally published by NIOSH and has been updated twice by the AIHA.

  • Fundamentals of Industrial Hygiene

    Provides very basic information on most industrial hygiene topics. Relatively easy read. Do not recommend purchasing if you have a good library or already own The Industrial Environment: Its Evaluation and Control.

  • Safety Management: A Human Approach

    This is the first real safety management book that I've read. It is well written, and it is definitely worth reading if you are a safety professional or industrial hygienist. Many of the management theories are discussed in the text. This is an...

  • Occupational Safety Calculations

    A spiral bound book describing every equation on the previous exam formula sheet handout. Edited by faculty at the Harvard School of Public Health. A quick reference to review specific formulas.

  • Accident Prevention Manual for Business and Industry: Administration and Programs

    The National Safety Council accident prevention manuals cover most safety topics in reasonable detail. Great source of material in preparing for the exam.

  • Accident Prevention Manual for Business and Industry: Engineering and Technology

    The National Safety Council accident prevention manuals cover most safety topics in reasonable detail. Great source of material in preparing for the exam.

  • Safety Professional's Reference and Study Guide

    This is another excellent resource for the ASP® and CSP® exams.

  • Safety and Health for Engineers

    A great basic text covering most safety topics.

  • Disclosures

    Bowen Learning Network Inc. dba Bowen EHS may have a proprietary interest in the products, instruments, devices, services or materials discussed in our courses, webinars, and PDCs. Russell Bowen, Founder of Bowen Learning Network Inc. dba Bowen EHS,...

  • Computer/Device Requirements - Virtual Classroom

    The Bowen Learning Network online virtual classrooms are powered by BigBlueButton. It fully supports the Windows, Mac OS X, and Chromebook platforms (see below for versions supported). Support is available for iOS (iPads) and Android Tablets. While...

  • Our Guarantee

    Our goal is for you to pass your exam(s), and we stand behind that. Support continues well beyond the course. We continue to answer questions and help with your studies beyond the completion of the course. Our goal is to help you succeed. If you meet...

  • Member Agreement

    Bowen EHS provides training, continuing education, and exam preparation and reviews to health and safety professionals through an online Member Center. Bowen EHS® Member Center registrants (Members) are those enrolled in the Bowen EHS® Member Center....

  • Margaret Murphy, Manager of Instruction, COO

    Margaret is responsible for instructor management and course development and administration. Her duties include hiring and training our instructors and ensuring they get the support they need so they can put their energy into our clients’ learning...

  • Chris Egle, Chief Executive Officer

    As CEO, Chris is our leader and visionary. He leads Bowen Learning Network's stategic planning to develop and increase the value of our products and services for our clients' professional development needs. He communicates with our team on a daily...

  • Kim King, Senior Project Manager

    Mrs. King is in charge of developing and implementing all marketing and communication strategies for the Bowen Learning Network companies. She is responsible for making sure that our public message is clear, concise, and attractive across a variety of...

  • Todd Punke, Vice President of Development

    Mr. Punke is responsible for initiating and managing business relationships for the benefit of the Bowen Learning Network companies. This includes the negotiation of terms and conditions of contracts, performing client research and analyzing data to be...

  • Russell Bowen, CIH, CSP, Founder

    Mr. Bowen originally founded Bowen EHS, Inc. in 2003 to meet the educational needs of those studying for certification in the EHS professions. In 2014, Mr. Bowen created Bowen Learning Network, Inc. due to significant expansion in business activities....

  • The Bowen EHS® Member Center

    The Bowen EHS® Member Center is full of great study aids and materials for our members and clients alike.

  • Setting My Local Time in the Member Center

    If you would like to see class times in your local timezone, you can. After you change the setting your profile, all times in the Member Center will be in your local time.

  • How do I tell which browser I am using?

    Find out what a browser is and what yours is called.

  • Why can't I open a PDF or file from the Member Center?

    Sometimes the connection between the Member Center and your computer or device makes it difficult for your computer to open it.

  • Where are the study question solutions?

    The study questions and their solutions are found in the Bowen EHS® Member Center. You need to sign up for a Free Membership for access to the Member Center. The solutions for the last four study questions can be found in the Free Membership course. A...

  • How do I get to the Member Center?

    Go to the Member Center

  • How do I take quizzes?

    This also applies to entering your homework answers, practice exams, and final exams.

  • Subscribe and unsubscribe from Bowen EHS Member Center forums

    Here are the steps to subscribe, unsubscribe or check your subscription status in the Bowen EHS Member Center.

  • Member Center Computer Requirements

    The Member Center requires a up-to-date modern web browser that can handle web standards and Javascript well. The Virtual Classroom requirements are a little more strict.

  • 95%-100% Pass Rate - January 2021 ASP®-CSP® Review

    We completed our survey process for the January 2021 ASP®/CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 79% Pass Rate - September 2020 ASP® Online Review

    We completed our survey process for the September 2020 ASP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 79% Pass Rate - May 2020 ASP® - CSP® Online Review

    We completed our survey process for the May 2020 ASP®-CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 83% Pass Rate - July 2020 CHMM Online Review

    We completed our survey process for the July 2020 CHMM Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • BGC Updates CIH Exam Results Procedure

    The Board for Global EHS Credentialing, formally ABIH, announced that beginning with the Spring 2022 exam, examinees will no longer be informed of their preliminary pass/fail status immediately after completing the examination. Instead, exam results...

  • 77%-100% Pass Rate - October 2021 ASP®-CSP® Review

    We completed our survey process for the October 2021 ASP®-CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 67% Pass Rate - July 2021 CHMM Review

    We completed our survey process for the July 2021 CHMM Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 70% Pass Rate - July 2021 CIH Online Review

    We completed our survey process for the July 2021 CIH Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 100% Pass Rate - August 2021 ASP®Review

    We completed our survey process for the August 2021 ASP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 94%-100% Pass Rate - July 2021 ASP®-CSP® Review

    We completed our survey process for the July 2021 ASP®-CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 94%-100% Pass Rate - May 2021 ASP®-CSP® Review

    We completed our survey process for the May 2021 ASP®-CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 100% Pass Rate - February 2021 CHMM Online Review

    We completed our survey process for the February 2021 CHMM Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 80% Pass Rate - March 2021 ASP® Online Review

    We completed our survey process for the March 2021 ASP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • 100% Pass Rate - October 2020 ASP®- CSP® Online Review

    We completed our survey process for the October 2020 ASP®- CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate...

  • 92% Pass Rate - August 2020 ASP®- CSP® Online Review

    We completed our survey process for the August 2020 ASP®- CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • Pass Rate for the January 2020 ASP® and CSP® Online Review

    We completed our survey process for the January 2020 ASP®-CSP® Online Review course. 100 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. COVID-19 played a role in...

  • 71% Pass Rate - CIH Online Review Spring 2020 including delays and cancellations due to Covid-19

    We completed our survey process for the Spring 2020 CIH Online Review course. 100 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. We extended our normal survey...

  • 100% Pass Rate - 2020-04 CSP Online Review

    We completed our survey process for our Spring 2020 CSP® Online Review course. 90 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey. To receive a Certificate of...

  • Spring Cleaning Your Inbox

    While we can't help you scrub floors or organize your closets, we can help you get started in spring cleaning your inbox. Here are 7 Tips to keep your inbox neat and tidy: Unsubscribe from emails you no longer want to receive (even ours!). Create...

  • Bowen Learning Network Becomes Accredited Provider of IACET CEUs

    We are proud to announce Bowen Learning Network is accredited by the International Association for Continuing Education and Training (IACET). Bowen Learning Network complies with the ANSI/IACET Standard, which is recognized internationally as a...


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