1. A historical review and future prospective of chemical carcinogenesis 2. Role of xenobiotics metabolism in carcinogenesis 3. Recalcitrant of toxic xenobiotics and its routes of exposure to human 4. Major environmental xenobiotics risk for different cancers 5. Toxicokinetic and toxicodynamic of xenobiotics in cancer development 6. Mechanism of oxidative stress in carcinogenesis induced by xenobiotics 7. Genotoxic and non-genotoxic activities of cancer-inducing xenobiotics 8. Modulation of epigenome by xenobiotics in cancer 9. Carcinogenic effects of nanomaterials with emphasis on nanoplastics 10. Endocrine disruptor activity of xenobiotics in carcinogenesis 11. Environmental exposures (Bisphenol A and phatalates) as xenoestrogens enhance risk for breast cancer 12. Biotransformation of toxic xenobiotics by human gut microbiota 13. Mechanism of resistance to toxic xenobiotics in human 14. Profiling the reactive metabolites of xenobiotics in cancer 15. Toxicogenomic for prediction of carcinogenicity of xenobiotic substances