Approximate area

of the ‘dead zone’

Indian Ocean

400 km

400 miles

Sri Lanka

India

Bangladesh

Myanmar

Colombo

Naypyidaw

Dhaka

Mergui

archipelago

Kolkata

Andaman

Sea

Bay of Bengal

Approximate area

of the ‘dead zone’

Indian Ocean

400 km

400 miles

Sri Lanka

India

Bangladesh

Myanmar

Colombo

Naypyidaw

Dhaka

Mergui archipelago

Kolkata

Andaman

Sea

Bay of Bengal

Approximate

area of the

‘dead zone’

400 km

400 miles

Sri Lanka

India

Bangladesh

Thailand

Myanmar

Bangkok

Naypyidaw

Colombo

Dhaka

Andaman and

Nicobar islands

Mergui archipelago

Kolkata

Andaman

Sea

Bay of Bengal