Monitoring & Assessment of Water Quality of Najafgarh Drain & Its Sub-Drains

Any metropolitan city has a major issue with wastewater production, management and treatment. Drinking water supplies in the Delhi NCR are very restricted and largely depend on agreements with the surrounding states, resulting in ongoing political conflicts. Untreated wastewater regularly comes in from the surrounding populous areas and industrial sectors consequently; the quality of water flowing in the drains has become significantly decreased over time. It not only has an adverse effect on the Yamuna River's aquatic habitat, but it also has a detrimental impact on the health of the human population residing near the drain area. Sewerage pollution is a key contributor to the rise of water-borne diseases such as typhoid, dysentery, diarrhea, and other illnesses in the city. Even after the treatment of wastewater, several contaminants persist in the wastewater. Irrigation with wastewater may pollute the soil, making it available for plants to uptake and giving a pathway through the food chain, as well as having biological effects on soil fauna and flora after long-term use. The poorly treated wastewater may have acute or cumulative effects. Acute effects from wastewater are frequently caused by high concentrations of ammonia, chlorine, heavy metals, and organic pollutants, to mitigate these harmful impacts on society, treatment of wastewater should be done before discharging it into any water body.