Industrial Hygiene Industrial Hygiene A specialization in the

Industrial Hygiene

Industrial Hygiene A specialization in the broad field of safety and health.

OSHAct and Industrial Hygiene t Use Warning Labels t Use proper PPE’s t Provision of medical tests t Maintain accurate records t Accessibility & Availability of tests & monitoring to employees t Notification of employees who have been exposed to environmental stressors

OSHA Process Safety t Coverage t Employee Participation t Process Safety Information t Process Hazard Analysis t Standard Operating Procedures t Requirements for Contractors

MSDS Sheets t General Information t Hazardous Ingredients t Physical & Chemical Characteristics t Fire & Explosive Hazard Data t Health Hazards t Safe Handling and Use t Control Measures

Points of Entry t Inhalation t Absorption t Ingestion t Injection

Effects t Acute y. Sudden dose, high concentrations t Chronic y. Gradual dose over a period of time

Airborne Contaminants t Dusts t Fumes t Smoke t Aerosols t Mists t Gases t Vapors

Effects of Airborne Contaminants t Irritants y. Irritation to the skin, eyes, nose, mouth, throat, and upper respiratory tract t Asphyxiants y. Disrupt breathing so severely that suffocation results t Narcotics

Common Industrial Hygiene Problems t Asbestos t Sick Building Syndrome t Explosive Hazards t Confined Space

Exposure Thresholds t Time Weighted Average (TWA) t Short-term Exposure Limit t Exposure Ceiling

Recognizing Hazards t What is produced? t What raw materials are used? t What additional materials are used in the process? t What equipment is used? t What operational procedures are involved?

Recognizing Hazards t What dust control procedures are involved? t How are accidental spills cleaned up? t How are waste by-products disposed? t Is there adequate ventilation? t Are the processes equipped with exhaust devices?

Recognizing Hazards t How does the facility layout contribute to employee exposure? t Are properly working PPE’s available? t Are safe operating procedures recorded, made available, monitored and enforced?

Control t Engineering Controls t Ventilation t PPE’s t Administrative Controls t Additional Strategies

Important Laws t OSHA Chemical Process Standard t EPA Clean Air Act t SARA t Hazardous Materials Transportation & Uniform Safety Act.

Confined Space Standard t Shutdown Equipment/Power t Test Atmosphere t Ventilate the Space t Have Rescue Personnel Stand By t Maintain Communication t Use a Lifeline

Industrial Safety IT 335 Chapter 16 Noise and Vibration Hazards

Characteristics t Noise y. Unwanted sound t Decibel y. Measurement of sound t Threshold of Hearing y. Sounds heard by the human ear t Threshold of pain y. Max level of sound without experiencing pain

Hearing Loss Factors t Intensity of the Noise t Type of Noise t Daily Duration of Exposure t Total Duration of Exposure t Individual’s age t Coexisting hearing problems t Nature of the Environment t Distance from the source t Position of the ears relative to the sound source

Critical Noise Risk Factors t Noise Level t Frequency t Duration t Distribution

OSHA Regulations t Monitoring Noise Levels t Medical Surveillance t Noise Controls t Personal Protection t Education & Training

Workers’ Comp. & Hearing Loss t Onset and Progress of the employee’s history of hearing loss t The employees complete work history t Results of a hearing exam t Results of hearing studies t Determination of whether the loss originated from outside the workplace

Identifying Noise Hazards t Noise Surveys t Audiometric Testing t Record Keeping t Follow-Up

Noise Controls t Engineering Controls (pg 378 -379) t Administrative Controls (pg 380) t Hearing protection (pg 380)

Preventing Vibration Hazards t Low Vibration tools t Limit Employee Exposure t Change Employee Work Habits