| Autor: |
GABRIEL - MARIUS, APETROAEI, MANUELA - ROSSEMARY, APETROAEI, BRINDUSA - CRISTINA, CHIOTOROIU |
| Předmět: |
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| Zdroj: |
Annals (Constanţa Maritime University); 2016, Vol. 17 Issue 25, p17-22, 6p |
| Abstrakt: |
The interest upon CO2 concentrations introduced in the atmosphere by human activities enhances year after year because of the consequences on the atmosphere, land and oceans. Many studies showed that changes in the ocean carbon cycle are due to the absorption of anthropogenic CO2 from the atmosphere. The increase of CO2 has been correlated with the pH falling of seawaters, promoting a critical process known as acidification. Ocean acidification could modify many biochemical cycles and functioning of marine organisms. The aim of this paper is to demonstrate the chemistry behaviour of CO2 on seawaters. Once dissolved in seawater, CO2 reacts with water to form carbonic acid (H2CO3). Ocean stores CO2 as dissolved inorganic carbon (DIC) which remains in the form of dissolved CO2 and H2CO3, while the rest is in the form of HCO3- and CO3 2-. Adding CO2 to seawater, thus increase HCO3- that bring about a decrease in ocean water pH by increasing H+ concentration. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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