*3.7.1 Water sampling and analysis*

Water samples are collected from different points within a water body and analyzed for phosphorus content. Techniques like colorimetry, spectrophotometry, and inductively coupled plasma (ICP) analysis are used to quantify total phosphorus and different forms (e.g., dissolved, particulate). This helps in understanding the distribution and concentration of phosphorus in the water column. Here's how water sampling and analysis are applied to the study of phosphorus pollution in aquatic systems:
