What is the allowable concentration of six organic pollutants in drinking water?
To find the allowable concentration of organic pollutants in drinking water, you can refer to the guidelines provided by regulatory agencies such as the World Health Organization (WHO) or the Environmental Protection Agency (EPA). These agencies set standards and limits for various contaminants including organic pollutants in drinking water.
Here are some commonly regulated organic pollutants in drinking water and their allowable concentrations according to the guidelines:
1. Benzene: The WHO sets the guideline value for benzene in drinking water at 10 micrograms per liter (µg/L) or parts per billion (ppb).
2. Tetrachloroethylene (PCE): The EPA sets the maximum contaminant level (MCL) for PCE in drinking water at 5 µg/L or ppb.
3. Trichloroethylene (TCE): The MCL for TCE by the EPA is also set at 5 µg/L or ppb.
4. Polycyclic aromatic hydrocarbons (PAHs): PAHs are a group of organic pollutants. The EPA sets the MCL for benzo[a]pyrene, a commonly measured PAH, at 0.2 µg/L or ppb.
5. Dichloromethane (DCM): The WHO sets the guideline value for DCM in drinking water at 20 µg/L or ppb.
6. Vinyl chloride: The EPA sets the MCL for vinyl chloride at 2 µg/L or ppb.
It is important to note that the allowable concentration of organic pollutants may vary depending on the country and specific regulations in place. Always consult the relevant authority or guidelines for the most accurate and up-to-date information.