Health experts and administrative officials have expressed growing concern after uranium was detected in the breast milk of lactating women across six districts in Bihar. The findings come from a study conducted by the Mahavir Cancer Sansthan and Research Centre in Patna, in collaboration with an international scientific team. Uranium presence was recorded in all 40 samples tested.

According to the researchers, samples were collected between October 2021 and July 2024 from women residing in Bhojpur, Samastipur, Begusarai, Khagaria, Katihar, and Nalanda districts. Uranium concentrations ranged from 0.13 micrograms per litre to 5.29 micrograms per litre, with the highest levels observed in Katihar.

The study suggests that nearly 70 percent of infants living in groundwater-dependent regions may face long-term non-carcinogenic health risks. The report further notes that infants are less efficient than adults in eliminating uranium from their bodies, raising concerns about potential impacts on kidney development and the nervous system.

Despite the findings, experts have urged the public not to panic. National Physical Laboratory Director Dr. Dinesh K. Aswal stated in a media interaction that the recorded uranium levels fall well below the World Health Organization’s safety threshold for drinking water.
“There is no need for mothers to stop breastfeeding. Breast milk remains safe and highly beneficial for infants,” he said.

Meanwhile, researchers have called for large-scale groundwater testing, health monitoring in affected regions, and priority measures to ensure access to safe drinking water.

The study indicates that groundwater contamination may be emerging as a significant public health challenge in parts of Bihar, requiring urgent government and scientific intervention.