EHSShala Foundations - Core Environmental Basics for EHS Officers

If you haven’t read the START Level yet, begin there first.
It makes Foundations much easier to understand.

Why This Level Exists?

Every strong EHS career is built on solid fundamentals.
Before you understand compliance, audits, incidents or technology, you must understand:

• how India’s environmental system works
• the laws that govern industries
• types of pollutants
• how industries are categorized
• basics of ETP, STP, sampling and PCE
• the documentation that protects you
• the environmental portals you will use throughout your job

Foundations Level gives you the essential base that every EHS professional must master.

Explore Other Levels In This EHSShala Free Education Initiative:

EHSShala → Start

EHSShala → Foundations

EHSShala → Consent

EHSShala → Hazardous Waste

What You Will Learn

• How SPCB, CPCB and MoEFCC function and divide responsibilities
• India’s major environmental laws and how they apply to industries
• Types of pollution commonly generated in factories
• Industrial pollutants explained in simple language (COD, BOD, PM, TSS, etc.)
• How industries are categorized into Red, Orange, Green, White
• Basics of ETP & STP systems and the failures that happen commonly
• Sampling fundamentals for air, water and noise
• Basics of pollution control equipment used in industries
• SOPs, registers and documentation fundamentals
• Overview of major environmental portals (XGN, EPR, E-Waste, CTO/CTE)

Foundations Level Articles (Level 1)

How SPCB, CPCB & MoEFCC Work in India

Understand how India’s environmental governance system works, from national policy to state-level monitoring. Learn roles, responsibilities, how decisions are made, and how industries interact with these bodies.
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Environmental Laws in India (Complete Guide)

A beginner-friendly explanation of all major environmental acts, rules and notifications that govern industries. Covers Water Act, Air Act, EPA 1986, Hazardous Waste Rules and more.
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Types of Pollution in Industries

Air, water, noise, soil, and hazardous waste pollution explained with real examples from Indian factories. Understand sources, impacts and control strategies.
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Industrial Pollutants Explained (COD/BOD/PM/TSS)

Clear and simple explanations of industrial pollutants, how they form, why they matter, and how they’re measured. Includes COD, BOD, PM2.5, PM10, TSS, TDS, ammonia and more.
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Industry Categorization (Red/Orange/Green/White)

Learn how industries are classified, what permissions each category requires, and how categorization affects compliance, sampling, and monitoring frequency.
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ETP & STP Basics + Common Failures

Understand how treatment plants work, why failures happen, and what EHS professionals must monitor. Includes practical insights from real industrial cases.
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Sampling Basics for Air, Water & Noise

A clean and simple guide to how sampling is done in industries, what equipment is used, what mistakes to avoid, and how EHS officers can supervise sampling confidently.
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Pollution Control Equipment Basics

An overview of scrubbers, filters, APCDs, separators, noise barriers and other PCE systems used to control industrial emissions. Easy-to-understand explanations for beginners.
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SOPs, Registers & Documentation Fundamentals

Every document required in industries - explained in simple language. Includes statutory registers, SOP formats, checklists, permits and logbooks.
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Environmental Portals (XGN, EPR, EWaste, CTO/CTE)

A guide to the major environmental compliance portals used by industries in India. How they work, where companies usually get stuck, and how EHS officers can manage them efficiently.
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Frequently Asked Questions

1. What is the Foundations Level in EHSShala?

It is the first learning level covering basic environmental concepts like laws, pollution types, categories, ETP/STP basics, sampling and documentation.

2. Who should read the Foundations section?

New EHS officers, students, freshers and professionals who want to build a strong base before diving into compliance and advanced topics.

3. Are these topics relevant for real industrial jobs?

Yes. These 10 topics match real expectations from factories, audits and regulators. Every EHS officer must know them.

4. Why is understanding industry categorization important?

Categorization (Red/Orange/Green/White) controls your consent requirements, sampling frequency and monitoring responsibilities.

5. Will Foundations help me during audits?

Yes. Laws, sampling basics, documentation and pollutant understanding are the first things auditors check.