Water Pollution Flashcards

1
Q

How many of China’s cities have no sewage treatment facilities

A

80%

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2
Q

What causes water pollution

A

Polluting industries which dispose chemical waste into rivers and lakes which local governments have failed to crack down.

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3
Q

Health issues

A

980 million people drink party polluted water dangerous levels of arsenic, fluorine and sulfates
190 million people in China fall ill every year and 60,000 people die from diseases caused by water pollution l

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4
Q

How many of China’s lakes suffer from eutrophication

A

75%

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5
Q

To treat just half amount of sewage

A

Gov need to invest in 10000 treatment facilities.

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6
Q

Water 10

A

Goals included controlling pollutants and to improve quality of drinking water. Over 93% of urban drinking water sources shall reach Grade 3 or more by 2020

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7
Q

How much water is unfit for any purpose

A

56.4%

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8
Q

Essentially functionless in Beijing

A

39.9%

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9
Q

How much sewage does China produce everyday

A

3.5 million tons

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10
Q

How much sewage is released into rivers without being treated

A

90% of household sewage

And 1/3 of industrial waste water

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11
Q

How many people drink contaminated water

A

More than 600 million drink human and animal waste contaminated water

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12
Q

Pressure on water

A

China has 20% of worlds pollution but only 7% of worlds fresh water

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13
Q

Why is north drier than south

A

North contains 2 deserts. Increasingly arid and suffers from water shortages, cuz in the south, the land heats up and draws in moist air from over the. South China Sea. One meeting mountains, and cooler air masses, rain falls as part of the summer monsoon
80% of water is in southern China.

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14
Q

South to north Water transfer project

A

To transfer water from Yangtze River in the south to the north as 1/2 of the pop. And 2/3 of farmland is in the north with only 20% of water. 3 routes = Eastern, central, western
Planned for completion in 2050
Move 44.8 billion cubic metres of fresh water from south to north.
Estimated to cost $62 billion

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15
Q

Why is demand for water increasing in China

A

Urbanisation and rapidly increasing pop. And increasing demand for coal. Large amount of water used to process coal.

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16
Q

Conflicts due to water demand

A

Increase north and south divide
Domestic / cultural divide.
Might influence migration.
War?

17
Q

3 gorges dam protects how many people from floods

A

200 million people

And reduces frequency of major downstream flooding from once every 10 years to once every 100.

18
Q

Global warming effects on water supply

A

Global warming means higher temps which means changing rainfall patterns.
Increased desertification as dry soil can’t hold water. And expected to increase disparity between the north and south as the north will have more droughts and south will have more floods