Title: Toxicology
1A PresentationOnToxicants Toxicity
S.M. Asabur Rahman Student ID 091122
2Classification 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.
3Eating and drinking
Smoking
4Use of chemicals (e.g., pesticides, drugs)
5Environmental exposure
- Exposure at the Workplace
6Radiation
7Effect of Radiation Toxicity
81. Environmental carcinogens2.
Cardio-toxicants3. Immunotoxicant4.
Teratogents5. Occupationally inhaled
toxicants6. Hepatotoxicants7. Mutagenic toxicant
- Classification of toxicants on the basis of
- organ/system affected
Immunotoxicity
9Cardio-toxicity
Hepato-toxicity
Mutagenesity
10The capability to cause injury in a living
organism
Categories of Toxic effects
- Local and systemic effect
- Reversible and irreversible effect
- Immediate and delayed effect
- Morphological effect
- Functional effect
- Biochemical effect
11ToxicometricsToxicodynamicsToxicokinetics
- 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.
12- 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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