38. Impact of chemical dyes on water eco systems and alternatives like natural dyes.

The fashion and textile industry is one of the largest consumers of synthetic dyes, many of which contain toxic chemicals that pose serious threats to aquatic ecosystems. Discharge of untreated dye effluents into rivers and lakes reduces light penetration, disrupts photosynthesis, and leads to oxygen depletion, thereby harming aquatic flora and fauna. Persistent dye residues also bio accumulate, causing long-term ecological imbalances and even health hazards in humans through contaminated water. In contrast, natural dyes derived from plants, minerals, and insects present an eco-friendly alternative. They are biodegradable, non-toxic, and require less harmful processing, thereby minimizing water pollution. However, challenges such as limited color range, lower fastness, and scalability hinder their large-scale adoption. This study highlights the ecological impacts of chemical dyes on water bodies and emphasizes the potential of natural dyes as sustainablesubstitutes, encouraging a shift towards greener dyeing practices in the fashion industry.