What are the 3 ways that the toxicity of a substance can be decided?

The toxicity of a substance is described by the types of effects it causes and its potency.

• Types of Effects: Different chemicals cause different effects.
• Potency: Potency (strength) is a measure of a chemical’s toxicity.
• Exposure: A chemical can cause health effects only when it contacts or enters the body.

What are the modes of administration of the poison into the body?

There are four routes by which a substance can enter the body: inhalation, skin (or eye) absorption, ingestion, and injection. Inhalation: For most chemicals in the form of vapors, gases, mists, or particulates, inhalation is the major route of entry.

What are the four routes of poisoning?

There are four major routes by which a chemical may enter the body:

• Inhalation (breathing)
• Skin (or eye) contact.
• Swallowing (ingestion or eating)
• Injection.

What are the four main factors that affect the toxicity of a substance?

The toxicity of a substance usually depends on the following factors:

• Form and innate chemical activity.
• Dosage , especially dose -time relationship.
• Exposure route.
• Species.
• Life stage, such as infant, young adult, or elderly adult.
• Gender.
• Ability to be absorbed.
• Metabolism.

How are chemicals tested for toxicity?

The basic tool for determining toxicity of substances to marine and aquatic organisms is the toxicity test. In its simplest form, toxicity testing is taking healthy organisms from a container of clean water and placing into one containing the same water with a known concentration of a pollutant.

What are the entrance of poison on the human body and how poison can be excreted?

When ingested the poison is absorbed through the GI tract and small intestine. When absorbed through the skin the toxin passes first through the pores, then into the subcutaneous tissues and then finally into the blood stream.

What is the causes of poisoning?

What causes poisoning?

• Household products and personal care products, like nail polish remover and mouthwash, which is harmful to children.
• Cleaning products and detergents.
• Paint thinner.
• Pesticides and bug spray.
• Lawn chemicals, such as herbicides, fertilizers, and fungicides.
• Metals, such as lead.

Which of the following are symptoms of poisoning?

General symptoms of poisoning can include:

• feeling and being sick.
• diarrhoea.
• stomach pain.
• drowsiness, dizziness or weakness.
• high temperature.
• chills (shivering)
• loss of appetite.
• headache.