SHP Environmental Health & Industrial Hygiene 3

Question 1

What is OSHA's permissible exposure limit (PEL) for lead in general industry under 29 CFR 1910.1025?

Accepted Answer

50 µg/m³ as an 8-hour TWA

Answer

OSHA's lead PEL in general industry is 50 µg/m³ as an 8-hour TWA, with an action level of 30 µg/m³ that triggers medical surveillance and air monitoring requirements.

Question 2

What is the primary function of a noise dosimeter in an occupational health and safety program?

Accepted Answer

To measure a worker's cumulative personal noise exposure dose over a work shift

Answer

A noise dosimeter is worn by the worker throughout the shift to continuously monitor and record sound levels, calculating the cumulative noise dose for comparison to the 100% dose limit.

Question 3

ACGIH uses the 'Skin' notation next to a TLV to communicate what important information to industrial hygienists?

Accepted Answer

The substance can be significantly absorbed through the skin, contributing to total body burden

Answer

The ACGIH 'Skin' notation alerts industrial hygienists that skin absorption can contribute significantly to total systemic exposure, meaning air sampling alone may underestimate the true dose.

Question 4

Under OSHA's HazCom 2012 standard (aligned with GHS), how many standardized sections must a Safety Data Sheet (SDS) contain?

Accepted Answer

16 sections

Answer

OSHA's HazCom 2012 requires SDS to follow a standardized 16-section format covering identification, hazard information, composition, first aid, PPE, physical/chemical properties, and more.

Question 5

The ALARA principle in radiation protection requires that occupational radiation exposures be kept:

Accepted Answer

As low as reasonably achievable, considering economic and social factors

Answer

ALARA (As Low As Reasonably Achievable) requires minimizing radiation exposure through time, distance, and shielding while recognizing the practical and economic constraints of each workplace.

SHP - Safety and Health Professional Certified Practice Test

SHP - Safety and Health Professional Certified Practice Test

SHP Environmental Health & Industrial Hygiene 3