Nano urea and public health: why India must proceed with caution

📌 Summary:

• The Hindu article raises public health concerns about large-scale deployment of nano urea in India before adequate safety assessments

• Nano urea: Liquid fertiliser developed by IFFCO — nano-sized urea particles sprayed on leaves (foliar application) instead of soil application

• IFFCO claims: 50% less urea needed; reduces soil, air, and water pollution from conventional urea; boosts crop yield

• Public health concerns: (1) Nanoparticles can penetrate biological membranes — potential systemic toxicity if inhaled or absorbed; (2) Long-term safety data lacking; (3) No independent peer-reviewed safety trials published; (4) Regulatory gaps — CIBRC (Central Insecticides Board & Registration Committee) approved without robust toxicological data

• Article argues: "Proceed with caution" — need independent biosafety assessment, long-term field trials, worker safety protocols before mass adoption

• Conventional urea problem: India over-uses urea (subsidised); causes groundwater pollution, N2O emissions; nano urea genuinely addresses this if safe

• IFFCO's position: Has conducted trials showing crop yield improvements and reduced application rates

📌 UPSC Relevance:

• GS3: Agricultural technology, nano-technology in agriculture, fertiliser policy

📌 Prelims Facts:

• IFFCO: Indian Farmers Fertiliser Cooperative — world's largest fertiliser cooperative

• Nano urea: Liquid, applied as foliar spray; 500 ml replaces 1 bag (45 kg) conventional urea

• CIBRC: Under Ministry of Agriculture — approves agri-chemicals and fertilisers