Post on 20-Jun-2015
description
FUNDAMENTALS OF INDUSTRIAL HYGIENE
SPEAK
VPPA Conference – Region II
July 2011
Ken Bickerton, CIH, CSP
PHASE Associates, LLC
Hot Topics Today Ionizing Radiation Heat Related Illnesses Global Harmonized System Chemical Exposures
Changing Exposure LimitsCarcinogen DesignationsNanotechnology Materials – Titanium dioxide
Occupational Noise Confined Spaces - Construction Bedbugs
Communicating With Your Audience Trust is Paramount Understand the Audiences’ Concerns Timely, Factual, but with Empathy Simplicity is Key It’s an Ongoing Dialog
As VPP Sites this should not be new!
Radiation from Japan
Client with Reporters Returning from JapanExtensive ScreeningContaminated Items
Japanese based Client Concerned About Raw Materials Imported from JapanTraining of EmployeesGeiger Counter Training of Select
Employees
Ionizing Radiation from Power Plants Matter transforms from unstable to stable
energy states. Radioactive materials are substances
which spontaneously emit various combinations of ionizing particles (alpha and beta) and gamma rays of ionizing radiation to become more stable.
Radioactive parent decays to a "daughter" which may also be radioactive, therefore, is also simultaneously decaying.
Ionizing Radiation from Power Plants
Ionizing Radiation from Power Plants Naturally occurring
background radiation is the main source of exposure for most people. The average dose received by all of us from background radiation is around 2.4 mSv/yr
Ionizing Radiation from Power Plants Natural occurrences in Japan leading to
radioactive contamination release from a nuclear power plantIodine with half-life of 8 daysCesium with half-life of 30 yearsStrontium with half-life of 29 years
These are beta and gamma emitters
Ionizing Radiation from Power Plants Limiting time
Dose is reduced by limiting exposure time Distance
The intensity of radiation decreases with distance from its source
Doubling the distance reduces the energy by a factor of 4
ShieldingBeta by PlexiglasGamma by Lead
BP Gulf Response - HRI News Accounts of Workers Falling Ill from
Vapor ExposureNeed to Sell News
Heat Related Illness (HRI) Was Biggest IssueMore than 1,000 Potential HRI recordedTyvek Suits, Respirators, Gloves, Heat & Humidity
Florida Hospital Discharge and Emergency Department
Data from 2005–2009Identified 2,198 cases of Occupational HRI
Changing Exposure Limits OSHA
Hexavalent Chromium ○ Used New Information Regarding Nasal
CancerSilica
○ Updating to Reflect ACGIH or NIOSH○ Weight Concentration vs. Fiber Concentration
Flavoring Chemicals○ Diacetyl and Similar Compounds
Changing Exposure Limits ACGIH – Adopted
2011Acetic anhydrideAllyl chlorideCarbon blackEthyl benzeneMaleic anhydrideMethylacrylonitrileMethyl isopropyl
ketone
ACGIH – Adopted 2011 2,4-PentanedioneSoapstone
(Documentation and adopted TLV® withdrawn; see Documentation for Talc)
4,4'-Thiobis(6-tert-butyl-m-cresol)
Changing Exposure Limits Notice of Intended Changes
20 ChemicalsLasers & Non-ionizing RadiationBiological Indices for Fluorine
Under Study110 Chemicals12 Biological IndicesElectromagnetic FieldsErgonomicsThermal Stress
Global Harmonized System Significant Changes to Safety and Health
PhrasesNew Information driven by Registration,
Evaluation, Authorization and Restriction of Chemicals (REACH)
TSCA with Teeth Changes to Labeling
Flammable Liquid – 140°F Changes to MSDSs
16 Section FormatPrescribed Sequence
Carcinogens National Toxicology Program – June 6, 2011
Known Human Carcinogen○ Formaldehyde* and Aristolochic acids
Reasonably Anticipated to be a Human Carcinogen○ Captafol○ Cobalt-tungsten carbide (in powder or hard metal
form)○ Certain inhalable glass wool fibers○ o-Nitrotoluene○ Riddelliine○ Styrene
Nanotechnology Materials Have Unique Properties not Exhibited by
Bulk Quantity of Same Chemicals Health Effects are not Well Understood
Naturally Occurring as Extremely Fine Particles in Smoke and Diesel Fumes
Titanium dioxide – April 2011○ NIOSH – nano-TiO should be considered a
potential occupational carcinogen○ 2.4 mg/m3 for airborne but 0.3 mg/m3 for
nanoparticle○ Expect New and Lower Limits on Nanoparticles
Occupational Noise
Persistent, loud noise in the workplace more than doubles the risk for heart disease, Canadian researchers say – Elevated BP
OSHA’s to require Engineering Controls if Technically Feasible (Not Considering Economical) – rescinded after outcry
OSHA vs ACGIH vs DOD vs Int’l Octotoxic Chemicals
Confined Spaces General Industry 1910.146
Potentially Hazardous Atmosphere Proposed Construction Industry
Final Rule Stage – set for November 2011Isolated-Hazard Confined Space, Controlled-
Atmosphere Confined Space, Permit-Required Confined Space, and Continuous System-Permit-Required Confined Space
Testing for Hazardous Atmosphere○ Training of Monitoring Employee○ Maintenance and Calibration of Meter
Bedbugs Not Known to Transmit Disease Draw Blood from Host Health Effects
Range of Allergic Reacts Anxiety, Insomnia and Systemic Reactions
Around or Near the Areas Where People Sleep or Spend a Significant Period of Time No Socio-economic Preferences
Transported from Place to Place as People Travel
Bed Bugs
Difficult to Identify Infestation Until Significant Populations
Resistance to Pesticides has Increased Significantly over Time
Mechanical Approaches Vacuuming up the insects Heat Treating Wrapping MattressesSealing Cracks and Crevasses
Wrap Up
Need to Keep Ahead of the Rest Need to Keep Your Ears Open Know What You Know and What You
Don’t Know Know the Resources That Go To