AIHA Releases IH Calculator App

AIHA recently released the free IH Calculator LITE app, a calculator that aids industrial hygienists in performing OH&S calculations quickly and efficiently on their mobile device. Topics include: Noise, Heat Stress, Ventilation, Exposure Assessment and is complimented with a range of conversions such as volume, distance, pressure, temperature, TLVs, and more. The app is […]

Free Online Safety and Training Courses

The state of Washington is offering some invaluable online safety and training courses on their website. Topics include:

Accident Investigation Safety Checklists HAZCOM Ergonomics Fall Protection Janitorial Services Job Safety / Hazard Analyses Lockout / Tagout Noise Process Safety Management (PSM) and much more

You can find the courses and modules on […]

Confessions of a Certified Industrial Hygienist (CIH) Examinee interviews recent successful examinees of the Certified Industrial Hygienist (CIH) exam administered by the American Board of Industrial Hygiene (ABIH). The resultant text is as follows: When did you decide to take the CIH exam?

Examinee: I decided in 2003 to make it a goal of mine to obtain the CIH […]

Free Online Training Modules in Occupational Hygiene

The Occupational Hygiene Training Association (OHTA), has created a new website,, where free course materials for international occupational hygiene training modules are posted. Find training materials, learn about occupational hygiene, or develop your existing skillset.

Modules currently available include:

Noise Asbestos Measurement of Hazardous Substances Health Effects of Hazardous Substances Control of Hazardous Environments […]

Results for’s Occupational Health & Safety Salary Survey

The results are in from‘s Occupational Health & Safety Salary Survey. 300 Occupational Health and Safety Professionals responded to the survey request for information pertaining to career length, certifications, salary, geographic location, etc. The results are as follows:

Of the 297 respondents, nearly three quarters were male.

Age followed a […]

CIH Exam Prep Questions: Volume II, Part V

The latest CIH exam prep questions have been posted to You can find these 30 questions covering a wide range of IH topics HERE.

Also, don’t forget to check out’s newest publications to assist you in your CIH exam prep and/or in your practice of industrial hygiene. You can find […]

Average Salaries: Industrial Hygienist, Certified Safety Professional, EHS Manager

(Be sure to check out’s Occupational Health & Safety Professional Salary Survey here for detailed salary information provided by professionals like you!)

Below are the average salaries for occupational health and safety professionals (industrial hygienists, certified safety professionals, and environmental, health, and safety managers) in the US. The salaries are based upon the average […]’s CIH Exam Prep Questions to Continue in June ’10 will be taking a short leave from posting examination preparation questions for the Certified Industrial Hygienist (CIH) exam. Questions will resume in June 2010 after the Spring American Board of Industrial Hygiene (ABIH) exam window has closed.

In the meantime, be sure to check out the over 250 questions that currently offers to […]

AIHA Podcasts: Combustible Dust, CIH Certification, Noise

Have you checked out AIHA’s Safe & Sound Podcast lately? Very good information being delivered by Craig & Melissa at AIHA. Take a listen at home, work, or in the car (all files are .mp3 format).

Some of the latest highlights include:

Combustible Dust

John Astad, Director and Research Analyst of the Combustible Dust Policy […]

NTP (Normal Temperature & Pressure) Definitions

A few questions have arisen regarding the term NTP (Normal Temperature and Pressure). The following table helps to sort any potential confusion.

Agency Pressure Temperature Traditional

(Chemistry/Physics) 29.92 “Hg

760 mm Hg 492 ˚R

273 ˚K ACGIH


29.92 “Hg

760 mm Hg 530 ˚R


(Traditional) 29.92 “Hg