Dual diagnosis of acidification dynamics in Amazonian urban lakes: multivariate analysis and calcite saturation index for status and vulnerability assessment
Carlos Noriega, Cryssia Romão, Rafael Aquino, Sury Monteiro, Bruna Moraes, Rodrigo Brito, Carmen Medeiros, Marcelo Rollnic, Moacyr Araujo · 2026
Read Dual diagnosis of acidification dynamics in Amazonian urban lakes: multivariate analysis and calcite saturation index for status and vulnerability assessment by Carlos Noriega, Cryssia Romão, Rafael Aquino, Sury Monteiro, Bruna Moraes, Rodrigo Brito, Carmen Medeiros, Marcelo Rollnic, Moacyr Araujo (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13216101.txt.
Description
Carlos Noriega and co-authors present a 2026 study of acidification in two Amazonian city lakes that supply drinking water to Belém, Brazil. Tropical lakes acidify mostly through biology rather than acid rain, so pH alone can mislead managers.
Monthly sampling from September 2023 to August 2024 tracked 21 measures at the surface and bottom of Lakes Água Preta and Bolonha. An acidification sensitivity index stayed negative all year in both lakes, signalling thin alkaline reserves. Dry-season stress was driven by carbon dioxide build-up and oxygen loss at depth, while wet-season rain diluted alkalinity to critical levels. The authors recommend season-specific management rather than one year-round plan.
Catalog record
| CREATOR | Carlos Noriega, Cryssia Romão, Rafael Aquino, Sury Monteiro, Bruna Moraes, Rodrigo Brito, Carmen Medeiros, Marcelo Rollnic, Moacyr Araujo |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 65 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |