Un Health Work

8/8/2019 Un Health Work

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Un-health Work

Only if you let it!

You hold the Keys to Safety

Just pick them up and apply yourknowledge

P bar Y Safety Consultants Alberta Canada


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O H & S Legislation

The purpose of the O H & S Act is to

assure so far as possible every working,

man and woman in the nation safe and

healthful working conditions and to

preserve our human resources.



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Routes of Entry

Inhalation

airborne contaminants

Absorption

penetration through the skin

Ingestion

eating

drinking



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O H & S Hierarchy of Control

Engineering controls

Work practice controls

Administrative controls

Personal protective equipment (PPE)



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Types of Exposure

Acute

Short term period between exposure and onset of

symptoms Chronic

Long time period between exposure to an agent

and the onset of symptoms



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Exposure LimitsAir Contaminants

O H & S

Occupational Safety and Health Administration

NIOSH

National Institute of Occupational Safety and Health

ACGIH

American Conference of Governmental Industrial

Hygienists



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O H & S

PEL, STEL, Ceiling

NIOSH

TWA, STEL, Ceiling

ACGIH

TWA, STEL, Ceiling



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TWA

takes into account variable exposure through a full

shift, 8 hour work day STEL

limit of exposure during a short period, 15 minutes

CEILING absolute maximum level of exposure not to be

exceeded



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Legally enforceable

O H & S PEL

O H & S AL (action level)

O H & S EL (excursion limit)



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Silica

Special Emphasis Program (SEP)

Special Emphasis Program--Silica

O H & Ss Industrial Hygiene initiative

Collaboration of O H & S Compliance andConsultation Programs

SiO2



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Why Target Crystalline Silica

Exposure? Widespread occurrence and use

Number of related deaths

Number of exposed workers

Health effects



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Occurrence and Use of Silica

SiO2 - basic component of sand, quartz &

granite

Quartz - 2nd most common mineral in the

earths crust

Airborne silica is produced by:



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Airborne silica is

produced by:

sandblasting

rock drilling

foundry work

stone cutting

drilling

quarrying

tunneling jack hammering

concrete manufacturing

demolition

asphalt pavement

manufacturing

Occurrence and Use of Silica



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Construction Targeting

jack hammering

rock drilling

abrasive blasting

concrete mixing

brick and concrete block or slab cutting



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Permissible Exposure Limit

(PEL) for Silica

10 mg/m3

% Quartz +2= ? mg/m3

PEL for respirable dust

containing a % silica.P bar Y Safety Consultants Alberta Canada


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Silicosis Prevention Program

Medical surveillance program

baseline examination

medical and occupational history prior to exposure

every 5 years if < 20 years of exposure

every 2 years if > 20 years of exposure

baseline chest x-ray pulmonary function tests (PFT)

x-ray upon termination of employment

Source: O H & SSEPP bar Y Safety Consultants Alberta Canada


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Personal air monitoring program

Training and information on crystalline silica

Availability of air and medical surveillance data toworkers

Respiratory protection program

Source: O H & SSEP




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Hygiene facilities and clothing change areas

Recordkeeping

Personal exposures below the PEL OR

facility hasan abatement program that provides interim

worker protection

Housekeeping program

Regulated areas

Source: O H & SSEP




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Health Effects

Acute - intense crystalline silica exposure

Accelerated - more intense exposure over 5 to

15 years Chronic - 20 to 45 years prolonged exposure

to crystalline silica



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Common Hazard

Abrasive blasting

Paint removal

Renovation & demolition

Road repair



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Exposure Controls

Substitution

Coal slag (black beauty)

Steel grit

Aluminum oxide

Wild stuff (frozen CO2, walnut

shells, baking soda



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Exposure Controls

Wet Methods

Water suppression of dust

Very effective method

May be less efficient

Requires supply of water and clean up

Power tools with HEPA exhaust



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Examples in a Large World



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Cadmium

Blue-white metal

Grayish-white powder

Found in lead, copper, and zinc sulfide ores

Compounds

highly colored from brown to yellow and red



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Uses

electrode component in alkaline batteries

stabilizer in plastics

paints

Cadmium



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Short term exposure

irritation of upper respiratory tract

constriction of the throat

metallic taste

cough

flu-like symptoms

Cadmium



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Long term exposure

kidney damage

lung cancer

prostate cancer

Cadmium



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01/12/100

ScopeScope

All occupational exposure to cadmium

compounds

in all construction work

construction

alteration

repair



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01/12/100

Covered ActivitiesCovered Activities

Wrecking

Demolition

Salvage

Use of cadmium

containing paints

cutting, brazing,burning, grinding or

welding

Electrical grounding

w/cadmium

Installation ofcadmium products

Emergencies

Transportation,

disposal, and storage



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01/12/100

DefinitionsDefinitions

Action level (AL)

2.5 Qg/m3

Competent person (29 CFR 1926.32) determines presents of cadmium

regulated areas

access

PPE

training



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01/12/100

Permissible

Exposure Limit

Permissible

Exposure Limit

PEL = 5 Qg/m3



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01/12/100

Exposure MonitoringExposure Monitoring

Prior to performance

Exposure at or above the AL

relevant plans reports

MSDSs

other records

Frequency

Additional monitoring ?P bar Y Safety Consultants Alberta Canada


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01/12/100

Initial MonitoringInitial Monitoring

As soon as practicable

Higher concentrations

monitor while conducting task Objective data

Documentation

> 5 Qg/m

3

< 5 Qg/m3



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01/12/100

Prohibited ActivitiesProhibited Activities

Eating

Drinking

Smoking Chew tobacco

Apply cosmetics

ORcarry such products into regulated areas



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01/12/100

Methods of ComplianceMethods of Compliance

Intermittent exposure

Exposure < 30 days per year

Engineering and work practice controls arenot feasible

reduce exposure to lowest level

PPE



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Methods of ComplianceMethods of Compliance

Employee

Rotation



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01/12/100

Compliance ProgramCompliance Program

Exposure > PEL

Written program

Review and update as necessary



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01/12/100

Other RequirementsOther Requirements

Hygiene areas and practices

Housekeeping

Medical Surveillance 30 or more days > action level

Communicating hazards

Recordkeeping



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Lead in

Construction Standard

SCOPE AND APPLICATION

Applies to all construction work where an

employee may be occupationally exposed tolead.

Excludes construction work covered in the

general industry standard.



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Lead in

Construction Standard

Applies to:

Demolition

Removal and

Encapsulation New construction,

alteration, repair, or

renovation

Installation of productscontaining lead

Lead contamination/

emergency cleanup Transportation,

disposal, storage

Maintenance

operations associated

with construction



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Selected Definitions

LEAD

Metallic lead

All inorganic lead compounds

Organic lead soaps

~ Excludes organic lead compounds. ~



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COMPETENT PERSON

ACTION LEVEL (AL) 30 Qg/m3

PERMISSIBLE EXPOSURE LIMIT (PEL)

50 Qg/m3



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ALLOWABLE EXPOSURE (in

Qg/m3

)

400

# hours worked




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INITIAL DETERMINATION

To determine whether employees are exposed

at above the action level

May rely on historical data

May rely on objective data




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Exposure AssessmentLead in Construction


TASK 1 TRIGGERS:

Exposure up to 500 Qg/m3 (10 x

the PEL)

Activities include:

manual demolition of structures, hand scrapping or

sanding, heat guns, power tool cleaning with dust

collection systems, spray painting



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TASK 2 TRIGGERS: Exposure up to 2,500 Qg/m3 (>10 x

the PEL, but less than 2,500 Qg/m3 )

Activities include:

using lead containing mortar, cleanup where dryexpendable abrasives are used, rivet busting, power toolcleaning without dust collection systems,movement/removal of enclosures




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TASK 3 TRIGGERS: Exposure > 2,500 Qg/m3 (>50 x the

PEL)

Activities include:

abrasive blasting, welding, cutting, torch burning




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POSITIVE INITIAL DETERMINATION

Exposure at or above the action level and below

the PEL Conduct monitoring representative of each exposed

employee

May use historical data

Additional monitoring - every 6 months

Document




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POSITIVE INITIAL DETERMINATION

Exposure at or above the PEL

Conduct monitoring representative of each exposedemployee

May use historical data

Additional monitoring - quarterly Document




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NEGATIVE INITIAL DETERMINATION

No exposure at or above the action level

Additional monitoring is not required unless

there is a change in:

equipment, process, control, personnel or task resulting

in levels at or above the action level

Document




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Methods Of ComplianceLead in Construction

Engineering Controls

Respiratory protection

Compliance program

Mechanical ventilation

Administrative controls

Good work practices



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Respiratory ProtectionLead in Construction

REQUIRED:

y While engineering and work practice controls arebeing installed or implemented

y During activities when engineering and work

practice controls are not feasible

y Where engineering and work practice controls arenot feasible to reduce exposures below PEL/AL

y In emergencies



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Must be provided whenever an employee requests

a respirator.

Must provide a PAPR whenever an employee

requests one and it is protective against the level of

exposure.

Respiratory ProtectionLead in Construction



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Exposure > PELLead in Construction

Respiratory protection

Personal protective equipment

Change rooms

Showers (where feasible in construction)

Eating facilities

Hand washing facilities



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HousekeepingLead in Construction

Maintain surfaces as free as practicable of

lead accumulation.



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Medical SurveillanceLead in Construction

INITIAL MEDICAL SURVEILLANCE

Exposure > AL one day

MEDICAL SURVEILLANCE PROGRAM

Exposure > AL for more than 30 days per year



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Medical RemovalLead in Construction

Two blood lead levels > 50 Qg/dL

Return - < 40 Qg/dL

Benefits



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Employee TrainingLead in Construction

EXPOSUR

E > AL

ANNUALLY



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RecordkeepingLead in Construction

EXPOSURE DATA

At least 30 years

MEDICAL SURVEILLANCE

Duration of employment plus 30 years



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RecordkeepingLead in Construction

MEDICAL REMOVAL

At least duration of employment

OBJECTIVE DATA

30 years



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So are you

So are you picking up the keys or are still

hunting for the set

Can you fully apply the skills of your trade or

do you have to stumble around in the dark

ARE YOU AFRAID TO ASK THE QUESTIONS LIKE

I DONT KNOW CAN YOU SHOW ME

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