Despite advancements in testing methods, several challenges persist:
Complexity of Contaminants: The diverse nature of contaminants requires a range of testing techniques, making the process complex and resource-intensive. Emerging Contaminants: New pollutants such as pharmaceuticals and personal care products (PPCPs) are increasingly found in water sources, demanding updated testing protocols. Cost and Accessibility: Advanced testing methods can be expensive and may not be accessible in all regions, particularly in developing countries.
