What method is commonly used to assess the presence of organic substances in water?

What method is commonly used to assess the presence of organic substances in water?

• A. Physical Inspection
• B. Chemical Analysis
• C. Bacterial Testing
• D. Radiation Survey

Answer: (B)

Chemical analysis is the method commonly used to assess the presence of organic substances in water because it involves testing for specific compounds and measuring their concentrations. This method can identify a wide range of organic contaminants, such as pesticides, solvents, and pharmaceuticals, by using techniques like gas chromatography, mass spectrometry, or high-performance liquid chromatography. The accuracy and specificity of chemical analysis make it essential for detecting and quantifying organic substances even at very low concentrations. Understanding the chemical composition of water is crucial for ensuring its safety and compliance with health standards. Other methods, such as physical inspection, bacterial testing, and radiation surveys, focus on different aspects. Physical inspection may reveal visible pollutants but cannot determine chemical composition. Bacterial testing assesses the presence of microorganisms, while radiation surveys evaluate radioactive substances, neither of which directly correlates to organic contaminants. Thus, chemical analysis stands out as the primary approach for organic substance assessment in water.

Chemical analysis is the method commonly used to assess the presence of organic substances in water because it involves testing for specific compounds and measuring their concentrations. This method can identify a wide range of organic contaminants, such as pesticides, solvents, and pharmaceuticals, by using techniques like gas chromatography, mass spectrometry, or high-performance liquid chromatography.

The accuracy and specificity of chemical analysis make it essential for detecting and quantifying organic substances even at very low concentrations. Understanding the chemical composition of water is crucial for ensuring its safety and compliance with health standards.

Other methods, such as physical inspection, bacterial testing, and radiation surveys, focus on different aspects. Physical inspection may reveal visible pollutants but cannot determine chemical composition. Bacterial testing assesses the presence of microorganisms, while radiation surveys evaluate radioactive substances, neither of which directly correlates to organic contaminants. Thus, chemical analysis stands out as the primary approach for organic substance assessment in water.