a strategy for assessing and managing occupational exposures exposure assessment basic...
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A Strategy for Assessing and Managing Occupational Exposures
Exposure Assessment
Basic CharacterizationStart
UnacceptableAcceptable Uncertain
Control Measures
Further Information Gathering
Periodic Re-Assessment
How do we develop the comprehensive metrology, instrumentation, and standards to
support a nanotechnology ESH program?
Exposure ManagementControl banding - concept
Low Dustiness Medium Dustiness High Dustiness
Hazard Group A
Small 1 1 1
Medium 1 1 2
Large 1 2 2
Hazard Group B
Small 1 1 1
Medium 1 2 2
Large 1 3 3
Hazard Group C
Small 1 1 2
Medium 2 3 3
Large 2 4 4
Hazard Group D
Small 2 2 3
Medium 3 4 4
Large 3 4 4
Hazard Group E
For all hazard group E substances, choose control approach 4
Parameters
Amount Used
Dustiness
Hazard Group (R-Phrase)
Control Approach1. General Ventilation
2. Engineering Control
3. Containment
4. Specialist Advice
www.ilo.orgNIOSH: TJ Lentz
A requirement from the U.K. Regulationson Control of Substances Hazardous to Health
(COSHH)
COSHH requires you to carry out health surveillance in the following circumstances:
• where employees are exposed to a substance linked to a particular disease or adverse health effect
• and there is a reasonable likelihood, under the conditions of the work, of that disease or effect occurring
• and it is possible to detect the disease or health effect.
Reference: COSHH: A brief guide to the Regulations What you need to know about the Control of Substances Hazardous to Health Regulations 2002 (COSHH), Health and safety Executive, INDG136rev3 04/05 C2000 (April 2005).
Comprehensive Industrial Hygiene Program Functional Elements
Exposure Monitoring
Engineering Controls
Hazardous Materials Management
Hazard Communication
Hearing Conservation
Personal Protective EquipmentMedical
Surveillance
Epidemiology Studies
Exposure Assessment
Particle CategoriesClasses of engineered nanoparticles
A. Spherical homogeneous
B. Fibrous homogeneous
C. Non-spherical homogeneous
D. Agglomerate homogeneous
E. Heterogeneous concentric
F. Heterogeneous distributed
G. Heterogeneous agglomerate
H. Active particle
I. Multifunctional particle
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
Particle CategoriesClasses of engineered nanoparticles
A. Spherical homogeneous
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
B. Fibrous homogeneous
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
C. Non-spherical homogeneous
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
D. Agglomerate homogeneous
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
E. Heterogeneous concentric
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
F. Heterogeneous distributed
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
G. Heterogeneous agglomerate
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
H. Active particle
Particle CategoriesClasses of engineered nanoparticles
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
I. Multifunctional particle
Particle CategoriesClasses of engineered nanoparticles
A. Spherical homogeneous
B. Fibrous homogeneous
C. Non-spherical homogeneous
D. Agglomerate homogeneous
E. Heterogeneous concentric
F. Heterogeneous distributed
G. Heterogeneous agglomerate
H. Active particle
I. Multifunctional particle
(not necessarily inclusive)Dr. Andrew D. Maynard: Woodrow Wilson International Center for Scholars
– Approaches to Safe Nanotechnology is a dynamic document about which NIOSH seeks public input, and that NIOSH will periodically update.
– Developing a comprehensive, centralized information management system across agencies and organizations would be a significant contribution
www.cdc.gov/niosh/topics/nanotech
The findings and conclusions of this presentation have not been formallydisseminated by the National Institute for Occupational Safety and Heathand should not be construed to represent any agency determination or policy.
Mention of company or product does not constitute endorsement by the Centers for Disease Control and Prevention or the National Institute for Occupational Safety and Health.
The assistance of many colleagues in the NIOSH Nanotechnology ResearchProgram and our partnering organizations is gratefully acknowledged.
[email protected] [email protected] 202-401-3737