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The health effects may be ______, such as irritation of the skin, sickness, or they may be permanent:
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:
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:
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:
The health effects may be temporary, such as irritation of the skin, ______, or they may be permanent:
The health effects may be temporary, such as irritation of the skin, sickness, or they may be ______:
The health effects may be temporary, such as irritation of the skin, sickness, or they may be ______:
The concentration of the chemical in air that kills 50% of the test animals in a given time is the ______ value.
The concentration of the chemical in air that kills 50% of the test animals in a given time is the ______ value.
Lower the ______ value, the more toxic is the chemical.
Lower the ______ value, the more toxic is the chemical.
Ali‬‬ is the name of the _______
Ali‬‬ is the name of the _______
The ______ of the chemical in air that kills 50% of the test animals in a given time is the LC50 value.
The ______ of the chemical in air that kills 50% of the test animals in a given time is the LC50 value.
The ______ value is the measure of the chemical's toxicity.
The ______ value is the measure of the chemical's toxicity.
The text is about _______ safety.
The text is about _______ safety.
The year mentioned in the text is _______.
The year mentioned in the text is _______.
If the ______ value is lower, the chemical is more toxic.
If the ______ value is lower, the chemical is more toxic.
Toxic materials can cause harm if they _______ the body.
Toxic materials can cause harm if they _______ the body.
The effects of toxic materials are of two types: _______ and chronic.
The effects of toxic materials are of two types: _______ and chronic.
Occupational diseases may also result from ingestion of chemical substances such as ______, mercury, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ingestion of chemical substances such as ______, mercury, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ingestion of chemical substances such as lead, ______, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ingestion of chemical substances such as lead, ______, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ingestion of chemical ______ of chemical substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ingestion of chemical ______ of chemical substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ______ of chemical substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ______ of chemical substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ingestion of ______ substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
Occupational diseases may also result from ingestion of ______ substances such as lead, mercury, arsenic, zinc, cadmium, phosphorous, etc.
This can vary from several weeks to ______.
This can vary from several weeks to ______.
LD ______ stands for "Lethal Dose"
LD ______ stands for "Lethal Dose"
This results from multiple exposures to the ______ chemical in sufficient concentrations.
This results from multiple exposures to the ______ chemical in sufficient concentrations.
This can vary from ______ to years.
This can vary from ______ to years.
[Blank] stands for "Lethal Dose".
[Blank] stands for "Lethal Dose".
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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.
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