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Pollution
- 1. Presented by, R. Naveena& Shiwani Agrawal
- 2. Topics to becovered:- 1. Introduction 2.Marine pollution 3.Noise pollution 4.Conclusion
- 3. introduction PollutionDefined • The term'pollution' describes the occurrence and inputs of wastes and the impact of these wastes on the environment.
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- 5. • Marine Pollution(UN definition) “The introduction by man, directly, or indirectly, of substances or energy to the marine environment resulting in deleterious effects such as: hazards to human health, hindrance to marine activities, impairment of the quality of seawater for various uses and reduction of amenities.”
- 6. Types of MarinePollution • Sedimentation • Agricultural runoff (herbicides, pesticides and nutrients) • Energy (thermal and light) • Sewage (Faecal Coli form and nutrients) • Solid Waste • Chemicals, Metals and Radioactive Substances • Oil • Biological
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- 8. Major Marine Pollutants– Solid Waste • A large portion and great danger is non biodegradable plastic • 46,000 pieces of floating plastic/sq mile of ocean surface off the N.E U.S. coast. • Sea turtles mistake plastic bags for jellyfish and die from internal blockages. • Seals and sea lions starve after being entangled by nets or muzzled by six-pack rings (decomposition time 400 years). • Plastic debris kills 100,000 marine mammals and 2 million sea birds die annually
- 9. MARINE OIL POLLUTION LANDBASED SOURSES NATURAL OIL BASED INDUSTRY MARINE TRANSPORT Major Marine Pollutants - Oil
- 10. Solutions to Pollution:- Two main methods – Correction – costly and time intensive Prevention – requires attitude changes Coastal Scientists believe that prevention is better than cure since the effects of marine pollution may be irreversible and we may therefore be creating everlasting damage to the marine ecosystem. “An ounce of prevention is worth a pound of cure”
- 12. What is noisepollution:- •Sound that is unwanted or disrupts one’s quality of life is called a noise. When there is lot of noise in the environment, it is termed as noise pollution •Sound becomes undesirable when it disturbs the normal activities such as working , sleeping and during conversation. •It is an underrated environmental problem because fact that we cannot see , smell or taste it. •WHO stated that “Noise must be recognized as a measure threat to human wellbeing”
- 15. Actually we hearwith our brain, not our ears • hair cells send impulses to brain • hair cells are extremely delicate Damage to hair cells can result in hearing loss •Threshold shift several hours •Trauma permanent •Noise induced gradualy becomes permanent FACT:-
- 16. DAMAGING LEVEL OFSOUND:-
- 17. Effect on humans;-Psychological:- • Annoyance- noise is uncontrolled • Anxiety •Aggression •Depression Effect on human health:- 1. Be a disturbance: Sleep – effect performance workplace – lack of productivity 2. Cause Stress: Blood pressure and heart rate rise may cause cardiovascular disease Due to both high and low levels of noise Has been linked to excess use of alcohol, drugs, food 3. Have also been linked to immune depression and problems with fetus development
- 18. 1. Damage toHearing 2. Hormonal imbalance 3. Panic and Escape Behavior 4. Decrease in food intake 5. Loss of energy 6. Abandonment of offspring 7. Injury Effect on wildlife
- 19. Effects on MarineLife:- • Marine Mammals use echolocation(Sonar and Explosive testing) •Whales and dolphins (Deaths occurring, Beaching themselves)
- 20. Ways to reduceand protect fromnoise pollution 1.Wear ear plugs 2. Use 1 appliance at a time 3. Turn down tv’s and radios 4.Keep car running properly 5. Proper safety measures in the industries etc.