Understanding the environmental and health impacts of Palm Oil Mill Effluent (POME) contamination is essential for driving sustainable practices and innovation within the industry. In this study, we elaborated the chronic toxicity of POME on growth disorder, respiratory distress, and skin discoloration of zebrafish (Danio rerio). Zebrafish were exposed to three concentrations of POME (0 mL/L, 0.5 mL/L and 1.0 mL/L) for 28 days. Results revealed that an increase in POME concentration significantly reduced the weight gain, length gain, specific growth rate, specific length rate and oxygen consumption rate of zebrafish. In contrast, the opercular rate increased significantly. Skin discoloration in zebrafish exposed to POME were characterized by reduced red percentage value on the body and tail, increased green and blue percentages on the tail, and decreased brightness values. This result suggests crucial insights for the management and regulation of POME.

中文翻译：

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斑马鱼 （Danio rerio） 长期暴露于棕榈油厂污水后出现生长障碍、呼吸窘迫和皮肤变色


了解棕榈油厂废水 （POME） 污染对环境和健康的影响对于推动行业内的可持续实践和创新至关重要。在这项研究中，我们详细阐述了 POME 对斑马鱼 （Danio rerio） 生长障碍、呼吸窘迫和皮肤变色的慢性毒性。斑马鱼暴露于三种浓度的 POME （0 mL/L 、 0.5 mL/L 和 1.0 mL/L） 中 28 d。结果表明，POME 浓度的增加显著降低了斑马鱼的增重、体长增加、比生长速率、比长速率和耗氧率。相比之下，鳃盖率显著增加。暴露于 POME 的斑马鱼皮肤变色的特征是身体和尾部的红色百分比值降低，尾部绿色和蓝色百分比增加，亮度值降低。这一结果为 POME 的管理和监管提供了重要的见解。