36
Dominick Fazarro, Ph.D. , CSTM University of Texas at Tyler Webinar August 20, 2014

Nano Safety: What Workers Need to Know

Embed Size (px)

DESCRIPTION

As with all materials, if you work with nanoparticles a few minutes of thought about safety will help you avoid problems later. Dr. Dominick Fazarro of the University of Texas at Tyler discusses nanoparticle safety. This talk provides a reasonable discussion of the potential hazards of nanoparticles and steps that can be taken to reduce these hazards. This talk is useful for those who work with nanoparticles or manage a facility that handles nanoparticles.

Citation preview

Page 1: Nano Safety: What Workers Need to Know

Dominick Fazarro, Ph.D. , CSTMUniversity of Texas at TylerWebinar ▪ August 20, 2014

Page 2: Nano Safety: What Workers Need to Know

The future of nanotechnologyThe potential hazards of nanoparticlesBehaving SafelyLaboratory practices for workersResources for better understanding the safety of nanoparticles

Page 3: Nano Safety: What Workers Need to Know
Page 4: Nano Safety: What Workers Need to Know
Page 5: Nano Safety: What Workers Need to Know
Page 6: Nano Safety: What Workers Need to Know

By 2020, there will be 6 million workers in nanoscience and manufacturing worldwide and 2 million of those jobs expected to be in the U.S.1

Nanotechnology will bring new innovations which will change society.We as people still have problems handling technology in moral and ethical manner to benefit human kind.

1 Roco, M. C. (2011). Journal of nanoparticle research, 13, 427‐445.

Page 7: Nano Safety: What Workers Need to Know
Page 8: Nano Safety: What Workers Need to Know

Spheres

Rods Tubes

Other Geometric Shapes

Page 9: Nano Safety: What Workers Need to Know

There are some unknowns about nanoparticles in terms of their characterizationThere is no or little research to determine if different size nanoparticles have the same propertiesThis may proposed a problem if scientists do not know if different size nanoparticles have different reactions to the human body

Page 10: Nano Safety: What Workers Need to Know

Researchers found that carbon nanotubes (multi‐walled) In addition to the early‐stage non‐cancer lung effects in animals, some studies in cells or animals have shown genotoxic or carcinogenic effects2  Single‐walled carbon nanotubes, for example, can be manufactured via several different processes which can generate products with different physical and chemical properties It is unclear whether existing test methods for physical and chemical properties are sufficient for nanomaterials characterization in order to assess their risk and to determine their exposure and hazard. It is clear, however, that properties such as boiling point are insufficient  Studies have found that carbon nanotubes is just as dangerous as Asbestos

2 NIOSH (2013).Occupational exposure to carbon nanotubes and nanofibers. http://www.particleandfibretoxicology.com/content/7/1/28

Page 11: Nano Safety: What Workers Need to Know

Inhaled nanoparticles can deposit in the lungs and then potentially move to other organs such as the brain, the liver, and the spleen, and possibly the fetus in pregnant women. Some materials could become toxic if they are inhaled in the form of nanoparticles. Inhaled nanoparticles may cause lung inflammation and heartproblems4

4 EUROPA (2013). Public health: Nanotechnologies. http://ec.europa.eu/health/scientific_committees/ opinions_layman/en/nanotechnologies/l‐2/6‐health‐effects‐nanoparticles.htm

Page 12: Nano Safety: What Workers Need to Know
Page 13: Nano Safety: What Workers Need to Know

Performing a hazardous task safely is not enough, a person must behave safelyManagers must a safety‐minded attitude to provide a safe‐environment Safety is even more focused and important when dealing with particles on the nano‐relm Safety engineering is to assist workers to perform their jobs safely in manufacturing nanoparticles

5 Agnew, J. & Synder, G. (2008). Removing obstacles to safety: A behavior‐based approach. Performance Production Publications: Atlanta, GA

Page 14: Nano Safety: What Workers Need to Know

THE ABC MODEL

ANTECEDENTS(before behavior)

BEHAVIOR(observable actions)

CONSEQUENCES(during or after behavior)

PROMPTPEOPLE TO

ACT OR BEHAVE

WHAT WE DOOBSERVABLE

ACTIONS

FOLLOW BEHAVIORAMD MAKE IT MORE OR LESS LIKELY TO

HAPPEN AGAIN

NEGATIVE&

POSITIVECONSEQUENCES

Page 15: Nano Safety: What Workers Need to Know
Page 16: Nano Safety: What Workers Need to Know

What are the exposure routes?MSDS (Material Safety Data Sheet)PPE (Personal Protective Equipment)Safety Engineering EquipmentDisposal of nanoparticles/materials

Page 17: Nano Safety: What Workers Need to Know

ROUTESRelated human 

activities that lead to exposure

IngestionContact with skin

InhalationHand to Mouth

Skin Puncture

Page 18: Nano Safety: What Workers Need to Know

A person who work with engineered nanoparticles should be reading the MSDSA person should be familiar with known chemical hazardsIF THERE IS NO MSDS ON THE PACKAGE DO NOT OPEN, RETURN TO MANUFACTUER!!!!

Page 19: Nano Safety: What Workers Need to Know
Page 20: Nano Safety: What Workers Need to Know
Page 21: Nano Safety: What Workers Need to Know
Page 22: Nano Safety: What Workers Need to Know
Page 23: Nano Safety: What Workers Need to Know
Page 24: Nano Safety: What Workers Need to Know
Page 25: Nano Safety: What Workers Need to Know
Page 26: Nano Safety: What Workers Need to Know
Page 27: Nano Safety: What Workers Need to Know
Page 28: Nano Safety: What Workers Need to Know

PPE (Personal Protective Equipment)

Dermal exposure

Inhalation exposure

The last line of defense for acting safely. PPE is a barrier to protect the bodyAnd prevent leakage of particles

Page 29: Nano Safety: What Workers Need to Know

Glove Box

Fume Hood

Clean Room

Glove BagHVAC

Page 30: Nano Safety: What Workers Need to Know

Develop a Preventative Maintenance plan (PM)This plan will help:Maintain maximum protectionMeet or exceed the life of the warrantyReduce human error

Page 31: Nano Safety: What Workers Need to Know

Spills must be cleaned up immediately with the use of HEPA‐FILTER VACUUM equipment or wet wipe (towels) or the combination of twoGloves must be usedIf spills that may cause airbornenanoparticles, must use proper respiratory protection

6 http://nano.berkley.edu/research/73nanotech.pdf

Page 32: Nano Safety: What Workers Need to Know

If Storage in waste containers must be built to handle nanomaterials. The containers must be in good condition and prevent leaks Storage of nanomaterial in plastic bags labeled and color coded to ensure proper disposalMust have a Waste Disposal Operations Procedures (WDOP) for workers 

6 http://nano.berkley.edu/research/73nanotech.pdf

Page 33: Nano Safety: What Workers Need to Know

Technical Data

“N type” respirators, has a median size of the test particle, by count, is 75 nm

According to a 2007 article in the Nanotechnology   Law Report7, standard air filter Techniques were used on silver nano particles  (3nm‐20nm). Study revealed that particle penetration decreases continuously down to 3nm.

Although other engineered nanoparticles may behave differently in filter media. Some standard air filter techniques may not apply as more engineered nanoparticles are developed

7 http://www.nanolawreport.com/2007/06/articles/will‐standard‐air‐filtration‐techniques‐work‐with‐nanoparticles/#axzz3AlTs6pjw

Page 34: Nano Safety: What Workers Need to Know
Page 35: Nano Safety: What Workers Need to Know

NIOSH‐CDC                                        http://www.cdc.gov/niosh/docs/2014‐102/pdfs/2014‐102.pdfOSHA https://www.osha.gov/dsg/nanotechnology/nanotechnology.htmlEH&S‐Berkley Campushttp://nano.berkeley.edu/research/73nanotech.pdfU.S. Department of Health and Human Serviceshttp://ntp.niehs.nih.gov/results/nano/index.htmlUnited Kingdom http://www3.imperial.ac.uk/safety/subjects/nanotechnologyPenn State http://www.ehs.psu.edu/occhealth/nanomaterials.cfm

Page 36: Nano Safety: What Workers Need to Know

For any questions, please contact me @

University of Texas at TylerOffice (903) 565-5911Cell: (936) 689-7695Email: [email protected]