Whalesbook
Wastewater Agriculture Poses Serious Health Risks
Farmers in Delhi's surrounding areas, especially near Najafgarh, are using untreated wastewater from drains for irrigation due to a lack of fresh water. This practice involves sewage and waste from blocked drains and affects crops like cauliflower and sorghum. Despite known health dangers, this polluted water remains a common irrigation source for many farms near the capital.
Drain Effluent and Farmer Beliefs
The Najafgarh drain releases about 60% of Delhi's wastewater, heavily contaminating groundwater with industrial and domestic waste. However, some farmers continue to use this water, believing its chemical content aids crop growth. They often downplay health risks, noting that local residents appear healthy after eating these vegetables.
Unseen Risks for Consumers
Shoppers at Delhi's wholesale markets, like Azadpur Mandi, and roadside stalls cannot know how their vegetables were watered. The lack of a system to trace produce sources means consumers may be exposed to pesticides and heavy metals. Institutions like NEERI have long warned that these pollutants can build up in soil and crops, harming both the environment and human health.
Enforcement Lags Despite Warnings
The National Green Tribunal (NGT) banned farming on parts of the Yamuna floodplains in 2015 due to severe health risks from polluted irrigation water. Yet, this farming method continues in Delhi's agricultural outskirts. Even with substantial sewage treatment, large volumes of untreated wastewater reach farmlands, particularly where fresh water is scarce. Weak enforcement allows this dangerous cycle to persist.