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== Contamination from human activity == |
== Contamination from human activity == |
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[[File:Water Contamination.jpg|thumb|Overlooked regions grappling with inadequate drinking water and rivers tainted by contamination, a pressing environmental challenge requiring urgent attention and sustainable solutions.]] |
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[[Water pollution|Water contamination]] usually occurs through a series of two mechanisms: [[Point source pollution|point]] and [[Nonpoint source pollution|non-point sources]] of pollution. According to the U.S. Environmental Protection Agency (EPA), point source pollution is "any single identifiable source of '''[[pollution]]''' from which '''[[pollutant]]s''' are discharged, such as a pipe, ditch, ship or factory smokestack."<ref>{{Cite web|url=http://oceanservice.noaa.gov/education/kits/pollution/03pointsource.html|title=NOAA's National Ocean Service Education: Nonpoint Source Pollution |publisher=U.S. Department of Commerce, National Oceanic and Atmospheric Administration |website=oceanservice.noaa.gov|language=EN-US|access-date=2017-02-21}}</ref> Therefore, among the most common examples of point source pollution, poor factory and sewage treatment appear high on the list; although not as frequent, but, nevertheless, equally—if not more—dangerous, [[oil spill]]s are another famous example of point source of pollution. On the other hand, non-point sources of pollution are those that may come from different sources, among which, poor and badly monitored agricultural activities can negatively affect the quality of any nearby sources of water.<ref name="cdc.gov">{{Cite web|url=https://www.cdc.gov/healthywater/other/agricultural/contamination.html|title=Water Contamination | Other Uses of Water | Healthy Water {{!}} CDC|website=www.cdc.gov|language=en-us|access-date=2017-02-21}}</ref> |
[[Water pollution|Water contamination]] usually occurs through a series of two mechanisms: [[Point source pollution|point]] and [[Nonpoint source pollution|non-point sources]] of pollution. According to the U.S. Environmental Protection Agency (EPA), point source pollution is "any single identifiable source of '''[[pollution]]''' from which '''[[pollutant]]s''' are discharged, such as a pipe, ditch, ship or factory smokestack."<ref>{{Cite web|url=http://oceanservice.noaa.gov/education/kits/pollution/03pointsource.html|title=NOAA's National Ocean Service Education: Nonpoint Source Pollution |publisher=U.S. Department of Commerce, National Oceanic and Atmospheric Administration |website=oceanservice.noaa.gov|language=EN-US|access-date=2017-02-21}}</ref> Therefore, among the most common examples of point source pollution, poor factory and sewage treatment appear high on the list; although not as frequent, but, nevertheless, equally—if not more—dangerous, [[oil spill]]s are another famous example of point source of pollution. On the other hand, non-point sources of pollution are those that may come from different sources, among which, poor and badly monitored agricultural activities can negatively affect the quality of any nearby sources of water.<ref name="cdc.gov">{{Cite web|url=https://www.cdc.gov/healthywater/other/agricultural/contamination.html|title=Water Contamination | Other Uses of Water | Healthy Water {{!}} CDC|website=www.cdc.gov|language=en-us|access-date=2017-02-21}}</ref> |
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Latin: A a Á á À à  â Ä ä Ǎ ǎ Ă ă Ā ā à ã Å å Ą ą Æ æ Ǣ ǣ B b C c Ć ć Ċ ċ Ĉ ĉ Č č Ç ç D d Ď ď Đ đ Ḍ ḍ Ð ð E e É é È è Ė ė Ê ê Ë ë Ě ě Ĕ ĕ Ē ē Ẽ ẽ Ę ę Ẹ ẹ Ɛ ɛ Ǝ ǝ Ə ə F f G g Ġ ġ Ĝ ĝ Ğ ğ Ģ ģ H h Ĥ ĥ Ħ ħ Ḥ ḥ I i İ ı Í í Ì ì Î î Ï ï Ǐ ǐ Ĭ ĭ Ī ī Ĩ ĩ Į į Ị ị J j Ĵ ĵ K k Ķ ķ L l Ĺ ĺ Ŀ ŀ Ľ ľ Ļ ļ Ł ł Ḷ ḷ Ḹ ḹ M m Ṃ ṃ N n Ń ń Ň ň Ñ ñ Ņ ņ Ṇ ṇ Ŋ ŋ O o Ó ó Ò ò Ô ô Ö ö Ǒ ǒ Ŏ ŏ Ō ō Õ õ Ǫ ǫ Ọ ọ Ő ő Ø ø Œ œ Ɔ ɔ P p Q q R r Ŕ ŕ Ř ř Ŗ ŗ Ṛ ṛ Ṝ ṝ S s Ś ś Ŝ ŝ Š š Ş ş Ș ș Ṣ ṣ ß T t Ť ť Ţ ţ Ț ț Ṭ ṭ Þ þ U u Ú ú Ù ù Û û Ü ü Ǔ ǔ Ŭ ŭ Ū ū Ũ ũ Ů ů Ų ų Ụ ụ Ű ű Ǘ ǘ Ǜ ǜ Ǚ ǚ Ǖ ǖ V v W w Ŵ ŵ X x Y y Ý ý Ŷ ŷ Ÿ ÿ Ỹ ỹ Ȳ ȳ Z z Ź ź Ż ż Ž ž ß Ð ð Þ þ Ŋ ŋ Ə ə
Greek: Ά ά Έ έ Ή ή Ί ί Ό ό Ύ ύ Ώ ώ Α α Β β Γ γ Δ δ Ε ε Ζ ζ Η η Θ θ Ι ι Κ κ Λ λ Μ μ Ν ν Ξ ξ Ο ο Π π Ρ ρ Σ σ ς Τ τ Υ υ Φ φ Χ χ Ψ ψ Ω ω {{Polytonic|}}
Cyrillic: А а Б б В в Г г Ґ ґ Ѓ ѓ Д д Ђ ђ Е е Ё ё Є є Ж ж З з Ѕ ѕ И и І і Ї ї Й й Ј ј К к Ќ ќ Л л Љ љ М м Н н Њ њ О о П п Р р С с Т т Ћ ћ У у Ў ў Ф ф Х х Ц ц Ч ч Џ џ Ш ш Щ щ Ъ ъ Ы ы Ь ь Э э Ю ю Я я ́
IPA: t̪ d̪ ʈ ɖ ɟ ɡ ɢ ʡ ʔ ɸ β θ ð ʃ ʒ ɕ ʑ ʂ ʐ ç ʝ ɣ χ ʁ ħ ʕ ʜ ʢ ɦ ɱ ɳ ɲ ŋ ɴ ʋ ɹ ɻ ɰ ʙ ⱱ ʀ ɾ ɽ ɫ ɬ ɮ ɺ ɭ ʎ ʟ ɥ ʍ ɧ ʼ ɓ ɗ ʄ ɠ ʛ ʘ ǀ ǃ ǂ ǁ ɨ ʉ ɯ ɪ ʏ ʊ ø ɘ ɵ ɤ ə ɚ ɛ œ ɜ ɝ ɞ ʌ ɔ æ ɐ ɶ ɑ ɒ ʰ ʱ ʷ ʲ ˠ ˤ ⁿ ˡ ˈ ˌ ː ˑ ̪ {{IPA|}}
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