The skin faces the maximum brunt of the damage wrecked by pollution. The problems include skin dryness rashes allergy wrinkles pigment spots eczema and accelerated ageing. Air pollution increases the number of free radicals in the air and this along the ultraviolet radiation decreases the amount of collagen in the skin. The skin thus loses its elasticity developing fine lines and wrinkles. With this toxic air the level of oxygen in the skin cells reduces making it look dull and tired. New research shows that polycyclic aromatic hydrocarbons nitrogen dioxide and other chemicals in the air accelerate skin ageing significantly.