This article throws light upon the top fourteen techniques used for monitoring pollutants. Some of the techniques are:- 1. Digital Titration System 2. Digital Radiometer 3. Pulsed Fluorescence Technique 4. Paper Tape Analyser 5. Chemical Sensing Electrodes 6. A Mercury Substitution Ultraviolet Absorption Analyzer 7. Correlation Spectroscopy 8. Laser Techniques and Others. Technique # 1. […]