Pollution

Contents :

Pollution definition

Types of Pollution

Types of Marine pollution

Source of Marine pollutants

Impacts of Marine Pollution

Cost of Marine pollution

Solution of Marine pollution

Pollution Definition:

Pollution is something introduced into the environment

that is dirty, unclean or has a harmful effect.

Types of Pollution :

Water

PollutionAir

Pollution

Types of Marine

Pollution

Land

Pollution

Sound

pollution

Thermal

Pollution

Air

PollutionPollution

Sound Pollution :Also called as noise pollution is a disturbance of silent

environment with harsh loud noises. This is mostly due

to automobile sounds, the audio systems used for fun or

public speeches, temples, mosques, churches etc. This

pollution has severe impact especially on old people,

small children.

Water Pollution :

Contamination of both drinking water from rivers,

ponds and also sea water by discharge of large amounts

of human, industrial wastes leads to water pollution.

This makes the water harmful to drink, endanger lives

of sea animals etc.

Air Pollution :

The contamination of air with dangerous gases like CO,

CO2, SO2, CH4 and other harmful gases due to emission

from automobiles (petroleum), industries and sometimes

by natural calamities like volcanoes. Another type is

particulate air pollution, seems quite unaware to many

but if you stay near any industry, you will notice that

there is always some sort of particulate dust from the

chimneys of the factory. This is harmful especially to the

respiratory system

Thermal Pollution:

This pollution arises due to release of excess

heat from thermal power plants, industries

involved in metals molding etc. The heat is

released into the surrounding air rising the

temperature of the locality drastically. This can

be especially troublesome during summers.

Land Pollution :

Polluting the land due to contamination by

wide spread distribution of harmful chemicals

leads to land pollution. This is possible by

agriculture, irregular on surface disposable of

industrial wastes etc.

Marine Pollution :

“The introduction by man, Directly , or

Indirectly , of substance or energy to

the marine

Environment Resulting in deleterious

effects such as hazards to human

health , impairment of the quality of

sea water for various use and reduction

of amenties ” .

Marine Pollution :

Types of Marine Pollution:Sedimentation

Agriculture runoff(Pesticide and

nutrients)

Energy(thermal and light)

Solid waste

Chemicals , metals , and

radioactive substance

Oil

Biological

Major Marine Pollutants :

10 Billions tonnes of ballast

water with invasives

Est. 10,000 millions gallons of

sewage annually

3.25 millions metric tonnes of

oil annually

Millions of tonnes of solid

waste

Worldwide:

Source of Marine pollution :

Petroleum(oil)

Mercury

Sewage and Sludge

DDT and PCB s

Sources of Marine Pollution :

80% of non-biological marine

pollution comes from land bases

activities

Most obvious inputs via pipes

discharging directly into marine

waters(industrial , chemical and

food processing waste)

From Land:

From Air:Global atmospheric inputs to the

sea from air discharge

Impacts of Marine pollution:

Mechanical

Eutrophication

Saphrogenic

Toxicity

Mutagenic and carcinogenic

Generally marine pollution affects ecosystem

Health , public health , recreational water quality and economic

viability in the following ways :

Cost of Marine pollution :3.25 million tons metric tons of oil

wasted vs 3,4 millions tons used by

Jamaica annually

100,000 mammal and 2 million bird

deaths annually

Reduction of GDP by decreasing fishery

resource (11.9k tonnes -7.7k landed

1960-97) and decreased tourism earning

Loss of bio-diversity and potential life

saving medicines ( for Aids & cancer )

Solution of Marine pollution :Two Main methods

-CORRECTION –costly and time intensive-PREVENTION –require attitude changes

*Costal scientists believe that prevention

is better than cure since the effects of

marine pollution may be irreversible and

we may therefore be creating everlasting

to the marine ecosystem

Thankyou

for Listening