water pollution- mahesh joshi , env - 404
TRANSCRIPT
WATER POLLUTION
M.Sc. FYMAHESH JOSHI ENV- 404 SEM- 2
WHAT IS WATER POLLUTION?• Water pollution
is any chemical, biological, or physical change in water quality that has a harmful effect on living organism or makeswater unsuitable for desired uses.
SOURCES OF WATER POLLUTION
Construction sites
Suburban Development
Rural Homes
Industries
Agricultural Land
Waste Water Treatment plants
Cattles
Vehicles
Urban streets
• Domestic wastes– Biodegradable– Non Bio Degradable
• Sewages• Industrial Wastes• Fertilizers and Detergents• Pesticides• Radioactive Wastes• Thermal Pollution• Oil• Eutrophication• Religious rituals
SOURCES OF WATER POLLUTION
EFFECTS OF WATER POLLUTION Water pollution is the leading
worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily.
Around 1,000 Indian children die of diarrhea sickness caused by polluted water every day.
Some 90% of China's cities suffer from some degree of water pollution, and nearly 500 million people lack access to safe drinking water.
Disturbing entire ecosystem
Contaminating Ground water source
Excess fluoride in drinking water is resulting diseases like teeth deformity and skeletal fluorosis
Thermal pollution often kills aquatic pants and animals
SOLUTION ON WATER POLLUTION• By properly disposing of all types of waste.• The proper management of mass waste disposal.• Effluent should not be discharged directly into water bodies.• Choosing organic pesticides in farms.• Municipal treatment plants should be installed• Strict enforcement of laws.• Awareness through various modes.
THE DEAD SEAS ?
Certainly doesn’t look nice – but could it also be toxic?
How many different things have been
dumped in this river?
Ganges River PollutionThe levels of Coliform bacteria is over 2800 times the level considered safe by the W.H.O (world health organization).
The river directly and indirectly affects the largest population of any river in the world with over more than 420 million people who rely on it for food, water, bathing and agriculture.
And to cap it all as many as 10 million bathe in this river in a single day, for it is believed the Ganges is a holy river
In the holy city of Varanasi, the water of the Ganges is a "brown soup of excrement and industrial effluents“ – the contaminants are 120 times above the levels permitted for safe bathing
Ganges River Pollution•Approximately 1 billion litres of raw, untreated sewage are dumped in the river on a daily basis. The amount has more than doubled in the last 20 years.
Thousands of bodies are cremated on the banks of the river yearly with many being released into the river with hopes that their souls may have a direct path to heaven.
Hundreds Unwanted babies, cattle and other animal carcases are also dumped in the Ganges again with religious significance
• The major polluting industry along the Ganges is the leather industry from which chromium and other toxic substances leak into it
• And there are dozens of other industries that use the river as a convenient and cheap way to dispose of their hazardous wastes
Ganges River Pollution
CAN’T WE ?
“ We can send a shuttle into space, we can build the Delhi Metro, We can detonate nuclear weapons. So why can't we clean up our rivers? ”
THANK U….