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Benzene PowerPoint PPT Presentation


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Benzene. Regulated areas. Concentrations exceed permissible exposure limits (PEL) Concentrations exceed short-term exposure limits (STEL). 1a. Regulated areas. Which job titles/functions are allowed to access regulated areas?. 1b. Definitions. Benzene PEL Action level. 2a.

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Benzene

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Benzene l.jpg

Benzene


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Regulated areas

  • Concentrations exceed permissible exposure limits (PEL)

  • Concentrations exceed short-term exposure limits (STEL)

1a


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Regulated areas

  • Which job titles/functions are allowed to access regulated areas?

1b


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Definitions

  • Benzene

  • PEL

  • Action level

2a


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Definitions

  • STEL

  • Engineering controls

  • Work practices

2b


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Monitoring

  • Employees are able to observe the monitoring.

3a


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Monitoring

  • Ongoing monitoring depends upon the following factors:

    • Concentrations at or above the action level, but at or below the 8-hour TWA (annually)

    • Concentrations above the TWA (at least every 6 months)

    • The STEL (as necessary)

3b


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Monitoring

  • Monitoring is required after clean-up of spills, leaks, unintentional releases

  • Monitoring may be stopped under some conditions

3c


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Monitoring

  • Employees must be told of monitoring results within 15 working days:

    • Individually

    • Group posting

  • Written notification must include corrective actions

3d


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Monitoring

  • Additional monitoring may be performed if there is a change in:

    • A process

    • Equipment

    • Personnel

    • Work practices

3e


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Monitoring

  • Written exposureplan is required if employees are exposed at or above PEL

3f


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Physical hazards

  • Flammability

  • Explosions

4a


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Health hazards

  • Inhalation

  • Eye exposure

  • Skin exposure

  • Ingestion

4b


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Health hazards

  • Acts as a narcotic

  • Blood disorders

  • Vague symptoms

  • Carcinogen

4c


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Health hazards

  • Reproductive health changes

  • Mutagenic

  • Tumorigenic

4d


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Work practices

  • When working with benzene, workers should never:

    • store or use cosmetics, lip balm

    • drink or smoke

5a


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Work practices

  • Storage and handling procedures

  • Prohibit sources of ignition

  • Use non-sparking tools

5b


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Work practices

  • Never incinerate benzene cartridges, tanks, containers

  • Review flammable and combustible liquids regulations - 29 CFR 1910.106

5c


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Emergency procedures

  • Have fire extinguishers available

  • Use foam, CO2, or dry chemical, not water to fight a benzene fire

6a


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Emergency procedures

  • Flush eyes with water, lifting eyelids

  • Flush skin with water and wash with soap

6b


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Emergency procedures

  • Move victim to fresh air

  • Do not induce vomiting

  • Get immediate medical attention

6c


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Emergency procedures

  • Review emergency procedures, including:

    • Written plan

    • Emergency contact phone numbers

    • Emergency contact persons

  • Remove all ignition sources

6d


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Emergency procedures

  • Evacuate the area

  • Wear appropriate PPE in clean-up area

  • Properly dispose of all waste

6e


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PPE

  • Depending on the process, the following PPE might be needed:

    • Impermeable clothing

    • Gloves

    • Goggles

    • Face shields

    • Other protective gear

7a


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PPE

  • Understand the processes for proper:

    • Selection

    • Use

    • Inspection

    • Cleaning

    • Disposal

    • Decontamination

7b


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Use and limitations of respirators

  • Respirators are required:

    • during periods necessary to install or put into effect engineering controls

    • during periods necessary to install or put into effect work practice controls

8a


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Use and limitations of respirators

  • Respirators are required:

    • where exposure levels are above the TWA or STEL

    • where engineering controls and work practice controls are not sufficient to keep exposures below the TWA

8b


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Medical surveillance

  • Medical surveillance is required for all employees exposed:

    • at or above the action level for at least 30 days

    • at or above the PEL 10 or more days per year

    • to solvents containing more than 0.1% benzene

9a


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Medical surveillance

  • Exposure thresholds are determined without PPE use

9b


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Medical surveillance

  • Examinations are:

    • prior to assignment to an area where exposure may be at or above the conditions previously listed

    • annually

    • after exposure in an emergency

    • as a follow-up to previous exams

9c


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Medical surveillance

  • Examinations are:

    • at intervals recommended by the company physician

    • whenever an employee shows signs and symptoms of toxic levels of exposure

9d


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Medical surveillance

  • Employees who are required to use respirators at least 30 days per year will have a pulmonary function test every 3 years

  • Medical exams are thorough and emphasize blood chemistry

9e


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Medical surveillance

  • Related conditions not directly related to benzene may be included in examinations

  • Employees receive a copy of the physician’s written opinion within 15 days after it is received by the company

9f


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Medical surveillance

  • Records are retained by the employer for the duration of employment plus 30 years

9g


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Signs and labels

  • Post and maintain signs around regulated areas, as well as entrances and access points

10a


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Signs and labels

  • Report any faded or missing signs

10b


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Signs and labels

  • Labels are required on all containers

10c


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A copy of the benzene standard is available to all employees

  • 29 CFR 1910.1028

11a


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