4.Holi free from Colour Contaminants
Most Holi colours available in the market contain oxidized metals or industrial dyes mixed with engine oil which are dangerous for the skin. The black colour, for instance, comes from lead oxide, green from copper sulphate, silver from aluminium bromide and red from mercury sulphite. These chemicals can cause allergy, temporary blindness, renal failure, skin cancer, and even paralysis. It can even prove fatal.
Industrial dyes are largely used as Holi colours since they are cheaper and often gaudier. The price they extract however on human health and environmental well-being is tremendous. These chemicals were never developed for human use, including Holi colours. Synthetic Holi colours contain cheap, toxic substances which affect human health including mica, acids, alkalis, pieces of glass, etc. The mildest forms of adverse health effects include hair and skin problems like abrasions, irritation, itching, rashes, allergies, eye infections, hair roughness, etc. whilst the more serious forms include poisoning, impaired vision, respiratory problems and cancer. The risks increase when these colours are mixed with oils and fluids and applied to the skin.