Pollution is something that can damage your hair. So if you don't take care of your hair at teenage, it will be damageable for your whole life. Follow these tips: 1. Cover your hair properly when you come out in polluted areas or traffic. 2. Wash your daily or alternate days if you come home from the polluted areas as pollution can lead to dandruff in your hair. 3. Use a mild shampoo. 4. Deep condition your hair after shampooing. 5. Use hair serum on wet hair as it protects the surface and cuticle of the hair. 6. You can also oil your hair once a week. 7. Do not use hot water; wash with normal or lukewarm water.