Toxicology

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A PresentationOnToxicants Toxicity
S.M. Asabur Rahman Student ID 091122
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Classification Of Toxicants

• Toxicants
• Agents that causes an adverse effect on the
  biological system, seriously damaging the
  structures

• Toxicants in air
• Toxicants in water
• Toxicants contaminating food
• Others viz. , noise and radiation pollution.

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Eating and drinking

• Exposure of Toxicant

Smoking
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• Filling up gas tank

Use of chemicals (e.g., pesticides, drugs)
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Environmental exposure

• Exposure at the Workplace

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Radiation
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Effect of Radiation Toxicity
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1. Environmental carcinogens2.
Cardio-toxicants3. Immunotoxicant4.
Teratogents5. Occupationally inhaled
toxicants6. Hepatotoxicants7. Mutagenic toxicant

• Classification of toxicants on the basis of
• organ/system affected

Immunotoxicity
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Cardio-toxicity

• Teratogenesity

Hepato-toxicity
Mutagenesity
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The capability to cause injury in a living
organism

• Toxicity

Categories of Toxic effects

• Local and systemic effect
• Reversible and irreversible effect
• Immediate and delayed effect
• Morphological effect
• Functional effect
• Biochemical effect

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ToxicometricsToxicodynamicsToxicokinetics

• Principal aspects of Toxicology

Scope and Importance of Toxicology

• In medicine for diagnostic, preventive and
  therapeutic purposes.
• In food industry as direct and indirect
  additives.
• In agriculture as pesticides, growth regulators,
  artificial pollinators, and animal food
  additives.
• In chemical industry as solvent, components and
  intermediates of plastics and many other types of
  chemicals.
• Toxicology is also concerned with the health ,
  effects of metals (as in mines and smelters),
  petroleum products, paper and pulp, toxic plants
  and animals toxins.

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• Application of Toxicology

• Forensic toxicology
• Economic or industrial toxicology
• Environmental toxicology

Conclusion
Toxicology has its impact on human life from the
day of conception in the womb till the last
moments of life. It is primarily concerned with
the identification of deleterious agents and
,secondly, with the treatment of these agents for
detoxification, i.e. removal of the toxin.
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• Thanks To All