Industrial Hygiene Quiz Questions And Answers

Explanation
The risk when dealing with a chemical hazard in the workplace is determined by the toxicity of the chemical and the duration of exposure. The toxicity of a chemical refers to its ability to cause harm or damage to the body, while the duration of exposure refers to the length of time that a person is exposed to the chemical. These two factors are important in assessing the potential risk and determining appropriate safety measures to minimize harm to workers. The volatility of chemicals, age of worker, reactivity of chemical, and equipment speed are not directly related to the risk associated with chemical hazards.

Explanation
Toluene vapors, fungi, extreme heat, and repetitive motion can all be considered workplace hazards. Toluene vapors can be harmful if inhaled, fungi can cause respiratory issues, extreme heat can lead to heat exhaustion or heat stroke, and repetitive motion can cause musculoskeletal disorders. The floor mat and exit sign are not considered workplace hazards.

Explanation
The statement is false because ACGIH (American Conference of Governmental Industrial Hygienists) is not part of the Centers for Disease Control (CDC). ACGIH is an independent organization that focuses on occupational and environmental health and safety, while the CDC is a federal agency in the United States that works to protect public health and safety.

Explanation
An industrial hygienist can rely on a Material Safety Datasheet (MSDS) for chemical constituent and concentration values. MSDS provides detailed information about the hazardous properties of a chemical, including its composition and concentration. This information is crucial for assessing the potential health risks associated with the chemical and implementing appropriate safety measures. Regulatory compliance data and chemical reactivity values may also be included in an MSDS, but the primary purpose is to provide information about the chemical's constituents and concentrations.

Explanation
The responsibility of calibrating sampling equipment used by industrial hygienists does not lie solely with the manufacturer. While the manufacturer may provide guidelines and instructions for calibration, it is ultimately the responsibility of the industrial hygienist to ensure that the equipment is properly calibrated and functioning correctly. Calibration involves verifying and adjusting the accuracy of the equipment, which requires specialized knowledge and expertise that the manufacturer may not have. Therefore, the statement is false.

Explanation
OSHA, which stands for Occupational Safety and Health Administration, is a regulatory agency that sets and enforces safety standards in the workplace. One of the requirements set by OSHA is for employers to conduct exposure assessments. This means that employers must evaluate the potential hazards and risks that employees may be exposed to in their work environment. By conducting exposure assessments, employers can identify and implement appropriate measures to protect their employees from harmful exposures and ensure a safe working environment. Therefore, the statement that OSHA requires employees to conduct exposure assessments is true.

Explanation
ACGIH provides information on Threshold Limit Values (TLVs), which are recommended exposure limits for airborne contaminants in the workplace. These values represent the levels of exposure that most workers can be exposed to without experiencing adverse health effects. ACGIH also provides information on Biological Exposure Indices (BEIs), which are guidelines for assessing and interpreting biological monitoring results. These indices help in evaluating the potential health risks associated with exposure to hazardous substances. Additionally, ACGIH provides carcinogenic data, which includes information on substances that are known or suspected to cause cancer.

Explanation
Chemical hazards in the workplace are indeed complex to control because there are numerous variables that can impact the situation. These variables include the nature of the chemicals, their concentration, the method of handling or storage, and the potential for exposure. Properly implementing controls for chemical hazards requires a thorough understanding of these variables and the ability to assess and mitigate the risks associated with them. Therefore, it is true that chemical hazards in the workplace are often the most complex hazards to implement proper controls.

Explanation
NIOSH, the National Institute for Occupational Safety and Health, does indeed act as a research organization to provide OSHA, the Occupational Safety and Health Administration, with data. This data is used by OSHA to develop and implement regulations and guidelines aimed at preventing workplace accidents, injuries, and illnesses. NIOSH conducts research, collects data, and provides recommendations to OSHA and other stakeholders to improve workplace safety and protect workers' health. Therefore, the statement is true.

Explanation
A workplace that has dosimeter readings above 85 dB is an example of a physical hazard. This is because the dosimeter readings indicate high levels of noise, which can cause harm or injury to individuals working in that environment. Physical hazards refer to any conditions or situations in the workplace that can cause harm or injury to employees, such as noise, temperature extremes, radiation, or mechanical hazards.