A concentration-dependent decrease in growth rate and pigment concentration of the blue-green alga Spirulina platensis was recorded after the exposure to graded (5–40 ppm) concentration of six textile dyes. The profile of vital elements (C, H, N, S) also showed a significant variation due to dye toxicity. The algal population showed up to 50% decrease in protein content after exposure to the dyes. Among the pigments, the dye exposure resulted in > 90% decreases in phycocyanin however, total chlorophyll and carotenoids exhibited up to a 50% decrease compared to control. The findings indicate that the unregulated discharge of textile dyes will directly impact the photoautotrophic organisms leading to ecological imbalance in aquatic ecosystems. Overall observations of the report provide baseline information about the toxicity of textile dyes and giving a better insight into the little-understood mechanisms of dye toxicity.

蓝藻螺旋藻生长速率和色素浓度的浓度依赖性降低在六种纺织染料暴露于分级（5–40 ppm）浓度后记录。由于染料毒性，重要元素（C，H，N，S）的分布也显示出显着变化。暴露于染料后，藻类种群的蛋白质含量最多降低了50％。在颜料中，染料暴露导致藻蓝蛋白减少> 90％，但是与对照相比，总叶绿素和类胡萝卜素最多减少了50％。研究结果表明，纺织染料的无管制排放将直接影响光合自养生物，从而导致水生生态系统的生态失衡。该报告的整体观察结果提供了有关纺织品染料毒性的基线信息，并使人们对染料毒性的鲜为人知的机理有了更深入的了解。