| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000313324 |
| ISSN: | 0100-4042 |
| Authors: | Guimaraes, Giselle Parno1 Mello, William Zamboni de |
| Institutions: | 1Universidade Federal Fluminense, Instituto de Quimica, Niteroi, Rio de Janeiro. Brasil |
| Year: | 2006 |
| Season: | Feb |
| Volumen: | 29 |
| Number: | 1 |
| Pages: | 54-60 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | In the begining of April 2004, concentrations of NHx (NH3 + NH4+) were measured in surface waters of the Guanabara Bay. Concentrations varied from 2 to 143 mmol L-1. Ammonia exchange at the air-sea interface was quantified using a numerical model. No measurement of NH3 concentration in air (c air) was performed. Thus, calculations of NH3 flux were based on the assumptions of c air = 1 and 5 µg m-3. Fluxes were predominantly from the water to the atmosphere and varied from -20 to almost 3500 µg N m-2 h-1 |
| Disciplines: | Geociencias |
| Keyword: | Oceanografía, Intercambio mar-aire, Amonio, Aguas superficiales |
| Keyword: | Earth sciences, Oceanography, Air-sea exchange, Ammonia, Surface waters |
| Full text: | Texto completo (Ver HTML) |
