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Water quality describes the condition of the water, including chemical, physical, and biological characteristics, usually with respect to its suitability for a particular purpose such as drinking or swimming.

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Water quality can be classified into four types—potable water, palatable water, contaminated (polluted) water, and infected water.

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Water pollution is any contamination of water with chemicals or other hazardous substances that are detrimental to human, animal, or plant health. Possible sources of water contamination are: Corroded water pipes that leach harmful chemicals, such as lead. Hazardous waste sites and industrial discharges.

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As you can see 97% of Earth's water is salt water, so we can't drink it. We have 3% fresh water. However 2% of that is in Polar Icecaps so we only have 1% fresh water available for drinking.

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Some of the types of water pollution are

Global warming.

Deforestation.

Industry, agriculture and livestock farming.

Rubbish and faecal water dumping.

Maritime traffic.

Fuel spillages.

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You can stop water pollution by

1. Pick up litter and throw it away in a garbage can.

2. Blow or sweep fertilizer back onto the grass if it gets onto paved areas. ...

3. Mulch or compost grass or yard waste. ...

4. Wash your car or outdoor equipment where it can flow to a gravel or grassy area instead of a street.

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Water quality is also affected by climate change, as higher water temperatures and more frequent floods and droughts are projected to exacerbate many forms of water pollution – from sediments to pathogens and pesticides (IPCC).

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How climate change affect water and air quality

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How climate change affect water and air quality

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In many regions of the United States, climate-driven changes in weather conditions, including temperature and precipitation, are expected to increase ground-level ozone and particulate matter (such as windblown dust from droughts or smoke from wildfires). These changes worsen existing air pollution