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Are there any Indian laws about underwater noise pollution?

From NCERT In depth Asked by Anonymous from Dallas, United States 23 Oct 2026, 7:23 PM IST Updated

In one line

India does not have a specific law just for underwater noise pollution, but some rules and acts help control it as part of protecting the environment and marine life.

Olive ridley sea turtle — Species of sea turtle
Olive ridley sea turtle — Species of sea turtle
Olive Ridley turtles, found on India's east coast, are sensitive to underwater noise during nesting.
Image: Wikipedia

The rule

There is no single Indian law that directly mentions 'underwater noise pollution', but existing environmental laws and guidelines can be used to address it, especially when it harms marine life.

Some important acts and rules:

  • Environment (Protection) Act, 1986
  • Wildlife (Protection) Act, 1972
  • Coastal Regulation Zone (CRZ) Notification, 2011
  • Indian Ports Act, 1908 (for port activities)

Let's understand it simply

Imagine you are swimming in a village pond. If someone keeps banging a metal plate underwater, you feel the sound in your ears and even your body. Fish and other water animals feel this much more strongly. Underwater noise comes from ships, oil drilling, and construction in the sea. Too much noise can confuse, hurt, or even kill sea creatures like dolphins and fish.

Now, think of rules in your school. Even if there is no rule saying 'don't shout in the corridor', there are rules about not disturbing others. Similarly, Indian laws protect the environment and animals, even if they do not mention every single problem like underwater noise.

How it works

  1. Environment (Protection) Act, 1986: This law gives the government power to make rules to protect the environment, including water bodies.
  2. Wildlife (Protection) Act, 1972: Protects animals, including sea animals, from harm. If underwater noise hurts dolphins or turtles, this law can be used.
  3. Coastal Regulation Zone (CRZ) Notification, 2011: Controls what activities can happen near the sea coast, including construction and shipping.
  4. Indian Ports Act, 1908: Allows port authorities to make rules about ship movement, which can include noise control.
  5. Project Clearances: Big projects in the sea (like ports or oil drilling) must get permission from the government. They have to show they will not harm marine life, including from noise.
How Indian laws address underwater noise pollution
  1. Environment Act protects water bodies
  2. Wildlife Act protects marine animals
  3. CRZ rules control coastal activities
  4. Ports Act allows noise control at ports
  5. Big projects need environmental clearance

The story behind it

India started making environmental laws after the 1970s, especially after big disasters and international pressure. The Environment (Protection) Act, 1986 was made after the Bhopal Gas Tragedy. Underwater noise pollution became a concern only recently, as scientists found that whales, dolphins, and fish suffer from loud underwater sounds. India has not yet made a special law for this, but uses existing laws to handle complaints or problems.

Where you see it in real life

  • Mumbai Port expansion: Construction and ship movement create underwater noise, which can disturb fish and dolphins. Environmental clearance is needed.
  • Oil and gas drilling off Andhra coast: Machines used for drilling make loud noises. Companies must show they will not harm marine life.
  • Naval exercises: Warships and submarines use sonar (sound waves). If these harm sea animals, the government can ask for changes.
  • Shipping lanes near Gujarat: Heavy ship traffic increases underwater noise. Rules can be made to reduce speed or change routes.
  • Dredging in Chennai harbour: Removing mud from the sea floor is noisy. Projects need to show they will not damage the ecosystem.
  • Noise affecting Olive Ridley turtles in Odisha: During nesting season, rules may limit noisy activities near the shore.

Why it matters

  • Protects marine animals: Dolphins, whales, and fish use sound to find food and mates. Noise can confuse or injure them.
  • Fisheries: Too much noise can drive fish away, hurting fishermen's income.
  • Tourism: Healthy marine life brings tourists for dolphin-watching and scuba diving.
  • International image: India must follow global agreements to protect oceans.
  • Future laws: Understanding the problem helps make better, stronger laws.

Common mistakes

  • Thinking there is a special law just for underwater noise: There is none yet, but existing laws help.
  • Believing noise only harms humans: Underwater noise can be deadly for sea animals.
  • Ignoring small sources: Not just big ships, but even small boats and construction can cause harmful noise.
  • Assuming all projects get checked: Some small projects may escape strict checks, but big ones need clearance.

Remember it

India does not have a single law for underwater noise pollution, but uses its environment and wildlife laws to protect marine life from it.

Check yourself

Does India have a special law only for underwater noise pollution?

No, but existing environmental and wildlife laws can be used to control it.

Why is underwater noise pollution dangerous for dolphins and fish?

It can confuse, injure, or kill them because they use sound to live and communicate.

Name one Indian law that helps protect marine life from underwater noise.

The Wildlife (Protection) Act, 1972.

Why do big sea projects need government clearance?

To make sure they do not harm the environment or marine animals, including from noise.

Quick recap

  • India has no single law just for underwater noise pollution.
  • Existing laws like the Environment Act and Wildlife Act can be used to control it.
  • Big projects in the sea need government clearance to check for noise impact.
  • Underwater noise harms marine animals and can affect fisheries and tourism.
  • More awareness may lead to stronger, specific laws in the future.

Read it in the NCERT book

Written by the LLOS.ai tutor, checked against NCERT chapters. Asked by Anonymous from Dallas, United States on 23 Oct 2026, 7:23 PM IST