Environmental and Chemical Hazards

Toxicology deals primarily with what types of hazards?

• biological and social

• both chemical and physical

• human-made

• natural disasters

Which of the following types of people generally has a greater sensitivity to environmental hazards than the other types of people?

• teenagers

• adults

• infants

• none; all have equal sensitivity

The process of measuring the chance that an environmental hazard will cause harm is called

• toxicology.

• epidemiology.

• dose-response relationship.

• risk assessment.

Infectious diseases are diseases caused by an organism such as a virus or a bacterium, which is called a

• pathogen.

• toxicant.

• pandemic.

• carcinogen.

A disease that has appeared in the human population for the first time or that has existed for a while, but is increasing rapidly or spreading around the world is called

• environmental.

• pandemic.

• emerging.

• infectious.

Any substance that poses a chemical hazard is considered a(n)

• VOC.

• allergen.

• carcinogen.

• toxicant.

List the four main categories of environmental hazards and give examples of each.

• Biological, Chemical, Physical, Cultural

• Biological, Mechanical, Physical, Social

• Chemical, Physical, Social, Technological

• Cultural, Mechanical, Biological, Technological

How can water treatment facilities help stop the spread of infectious diseases?

• By filtering and purifying water to remove pathogens

• By adding more chlorine to the water supply

• By increasing the water pressure in pipes

• By reducing the water temperature

Epidemiology and toxicology are both fields of study. Which of the following best describes their primary focus?

• Epidemiology focuses on the spread of diseases, while toxicology studies the effects of chemicals on living organisms.

• Epidemiology studies the effects of chemicals on living organisms, while toxicology focuses on the spread of diseases.

• Both fields focus on the spread of diseases.

• Both fields study the effects of chemicals on living organisms.