25 Questions
The health effects may be ______, such as irritation of the skin, sickness, or they may be permanent:
temporary
The health effects may be temporary, such as ______ of the skin, sickness, or they may be permanent:
irritation
The health effects may be temporary, such as irritation of the ______, sickness, or they may be permanent:
skin
The health effects may be temporary, such as irritation of the skin, ______, or they may be permanent:
sickness
The health effects may be temporary, such as irritation of the skin, sickness, or they may be ______:
permanent
The concentration of the chemical in air that kills 50% of the test animals in a given time is the ______ value.
LC50
Lower the ______ value, the more toxic is the chemical.
LD50/LC50
Ali is the name of the _______
doctor
The ______ of the chemical in air that kills 50% of the test animals in a given time is the LC50 value.
concentration
The ______ value is the measure of the chemical's toxicity.
LC50
The text is about _______ safety.
chemical
The year mentioned in the text is _______.
2023
If the ______ value is lower, the chemical is more toxic.
LD50/LC50
Toxic materials can cause harm if they _______ the body.
enter
The effects of toxic materials are of two types: _______ and chronic.
acute
Occupational diseases may also result from ingestion of chemical substances such as ______, mercury, arsenic, zinc, cadmium, phosphorous, etc.
lead
Occupational diseases may also result from ingestion of chemical substances such as lead, ______, arsenic, zinc, cadmium, phosphorous, etc.
mercury
Occupational diseases may also result from ingestion of chemical ______ of chemical substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
substances
Occupational diseases may also result from ______ of chemical substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
ingestion
Occupational diseases may also result from ingestion of ______ substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
chemical
This can vary from several weeks to ______.
years
LD ______ stands for "Lethal Dose"
50
This results from multiple exposures to the ______ chemical in sufficient concentrations.
toxic
This can vary from ______ to years.
several weeks
[Blank] stands for "Lethal Dose".
LD50
Study Notes
Toxic Materials
- Toxic materials are substances that can cause harm to an individual if they enter the body.
- The effects of toxic materials can be:
- Acute: temporary health effects, such as irritation of the skin or sickness.
- Chronic: permanent health effects, such as blindness or scars from acid burns.
LD50 and LC50
- LD stands for "Lethal Dose".
- LD50: the dose of a chemical that kills 50% of test animals in a given time.
- LC50: the concentration of a chemical in air that kills 50% of test animals in a given time.
- Lower LD50/LC50 values indicate a more toxic chemical.
Ingestion of Toxic Substances
- Ingestion of toxic substances can lead to occupational diseases.
- Examples of toxic substances that can be ingested include:
- Lead
- Mercury
- Arsenic
- Zinc
- Cadmium
- Phosphorous
- Hazards symbols are used to indicate the presence of toxic substances.
This quiz assesses knowledge about the health effects of chemicals, including temporary and permanent effects such as skin irritation, sickness, blindness, and acid burns.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
