The Tula River () is a

river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...

in Hidalgo State in central

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

, and a tributary of the

Moctezuma River The Moctezuma River (Río Moctezuma) is a river in Mexico that drains the eastern side of the Trans-Mexican Volcanic Belt (Sierra Nevada). It is a tributary of the Pánuco River and flows through the Mexican states of Hidalgo, Querétaro, and San ...

Geography

It runs through the city of

Tula de Allende Tula de Allende ( Otomi: Mämeni) is a town and one of the 84 municipalities of Hidalgo in central-eastern Mexico. The municipality covers an area of , and as of 2010, the municipality had a total population of 103,919. The municipality includes ...

and begins as a drainage channel for the

Valley of Mexico The Valley of Mexico (; ), sometimes also called Basin of Mexico, is a highlands plateau in central Mexico. Surrounded by mountains and volcanoes, the Valley of Mexico was a centre for several pre-Columbian civilizations including Teotihuacan, ...

, which contains the metropolitan

Mexico City Mexico City is the capital city, capital and List of cities in Mexico, largest city of Mexico, as well as the List of North American cities by population, most populous city in North America. It is one of the most important cultural and finan ...

region. The

is a tributary of the

Pánuco River The Pánuco River (, ), also known as the ''Río de Canoas'', is a river in Mexico fed by several tributaries including the Moctezuma River and emptying into the Gulf of Mexico. The river is approximately long and passes through or borders the ...

Organic and Inorganic Life

The river is significantly contaminated with both organic and inorganic substances.

Tilapia Tilapia ( ) is the common name for nearly a hundred species of cichlid fish from the coelotilapine, coptodonine, heterotilapine, oreochromine, pelmatolapiine, and tilapiine tribes (formerly all were "Tilapiini"), with the economically mos ...

caught from the Tula river contain levels of lead that greatly exceed the established safety limits for consumption. Unusually high levels of

cadmium Cadmium is a chemical element; it has chemical symbol, symbol Cd and atomic number 48. This soft, silvery-white metal is chemically similar to the two other stable metals in group 12 element, group 12, zinc and mercury (element), mercury. Like z ...

arsenic Arsenic is a chemical element; it has Symbol (chemistry), symbol As and atomic number 33. It is a metalloid and one of the pnictogens, and therefore shares many properties with its group 15 neighbors phosphorus and antimony. Arsenic is not ...

and

lead Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleabl ...

were found in samples of Tula

zooplankton Zooplankton are the heterotrophic component of the planktonic community (the " zoo-" prefix comes from ), having to consume other organisms to thrive. Plankton are aquatic organisms that are unable to swim effectively against currents. Consequent ...

References

Rivers of Hidalgo (state) Tributaries of the Pánuco River {{Mexico-river-stub

Geography

Organic and Inorganic Life

See also

References