💣 AMMONIUM NITRATE – The Fertiliser That Can Turn into a Bomb

🏙️ In News: Red Fort Blast (Nov 2025)

• Investigators found traces of ammonium nitrate–based explosives in the Delhi Red Fort car blast.
• Linked to a 350 kg ammonium nitrate haul seized in Faridabad.
• Shows how easily a fertiliser supply chain can be misused for terror manufacturing.

⚗️ What It Is

• Ammonium Nitrate (NH₄NO₃) – a common fertiliser providing nitrogen to crops 🌾
• White crystalline solid — stable alone, but when mixed with fuel, it becomes explosively unstable.
🧪 Mix it with fuel oil (diesel, kerosene) → you get ANFO (Ammonium Nitrate Fuel Oil) — a cheap, powerful explosive used in mining… and sadly, in terror attacks too.
🔹 Remember: Stable Alone, Deadly Together →Ammonium Nitrate + Fuel Oil + Detonator = ANFO Explosion 💥

💥 Why It’s Dangerous

• Acts as an oxidiser — supplies oxygen for rapid combustion.
• When contaminated or confined → violent detonation with temperatures >2,500 °C.
• Shock-waves + gas expansion → massive blast radius (e.g., Beirut 2020 explosion 🔥).
⚠️ 1 tonne of ANFO = equivalent to hundreds of kilograms of TNT!

🏛️ Regulation in India

• Governed by Ammonium Nitrate Rules, 2012 under the Explosives Act, 1884.
• Supervised by PESO (Petroleum and Explosives Safety Organisation).
• Storage, sale, and transport require strict licensing.
• Still, illegal diversion & smuggling remain challenges.

🌍 Key Takeaways for UPSC Aspirants

• GS Paper-3 (Internal Security/Science & Tech): Recognise how chemical substances (fertiliser-chemicals) become dual-use threats.
• GS Paper-2 (Governance & Policy): Importance of regulatory regimes (PESO/DM/NIA), forensic linkage, intelligence and supply-chain control.
• GS Paper-4 (Ethics & Public Safety): Responsibility of states in ensuring that common chemicals do not become weapons, balancing agricultural needs & security.
• Essay: “When science meant for life becomes a tool of destruction”.

🍼☢️ URANIUM FOUND IN BREAST MILK?

A recent scientific study has triggered national debate after detecting traces of Uranium (U-238) in breast-milk samples from districts in Bihar. But what does this really mean?

🔎 What the Study Found
• Uranium detected in all samples tested (across 6 districts).
• Levels ranged up to ~5 µg/L — NOT immediately toxic, but worth investigating.
• ~70% infants had a “Hazard Quotient” > 1 → possible long-term risk if exposure continues.

💡 Should Mothers Stop Breastfeeding?

❌ NO.
Experts clarify:
• Uranium in these amounts is below many international water safety thresholds.
• Uranium does NOT accumulate significantly in breast milk.
• Breastfeeding remains far safer and healthier than alternatives.
✔️ Issue to fix = environmental contamination, NOT breastfeeding.

🧬 Why Uranium is a Concern

• Uranium = heavy metal, not just radioactive material.
• Chronic exposure may affect:
o ⚠️ Kidney function
o ⚠️ Bone & neurological development (infants are more vulnerable)
• Source suspicion: groundwater contamination from natural geology or human activities.

🌍 Why This Matters for India

This case highlights the Environment → Water → Human Health chain:
• Contaminated groundwater → enters household water → enters mother’s body → appears in breast milk.
• Echoes past issues with arsenic & fluoride in Indian groundwater.

🏛️ UPSC Takeaways

GS-3 (Environment & Health): Heavy-metal contamination, Public health surveillance, and Drinking water safety under Jal Jeevan Mission
GS-2 (Governance): Need for stronger water-quality monitoring
Ethics / Essay: “Environmental neglect burdens the most vulnerable – even infants.”

The exact schedule of Science and Technology will be this:

1) Hardcopy by the 25th of March
2) Chapter-wise PDFs starting from March 1st on live.pmfias.com (1 Chapter every day; total 32 chapters)
2) Full PDF by the 31st of March (live.pmfias.com)

The delay in Science and Technology is mostly due to quality enhancement. It's a tough dynamic subject with unending syllabus.

PMF IAS Science and Technology 1st Edition Full PDF is now available for Purchase/Download.

Purchase/Download link: https://live.pmfias.com/new-courses/65

Contents and Sample: https://drive.google.com/sample

🚀 S&T REVISION SERIES FOR PRELIMS 2026 BEGINS TODAY

From today onwards, we begin a structured revision of Science & Technology for UPSC CSE Prelims 2026.

🎯 This series will help you:
✔ Revise important current affairs-linked topics
✔ Identify which sections of the PMF IAS S&T book to focus on more
✔ Avoid reading the book randomly and instead cover it strategically

📘 How to use this series:
👉 Follow daily posts
👉 Revise the mentioned sections from the book
👉 Solve MCQs and track your understanding

⚠️ Remember:
This is NOT about reading everything.
This is about smart revision + right focus areas.

Let’s begin. Stay consistent. 💪

Attempt the above MCQs to assess your level of conceptual clarity regarding CRISPR-Cas9 technology.

Attempt the above MCQs to assess your level of conceptual clarity regarding CAR-T cell therapy.