중남미
연구정보
[환경] Hydrographic Basins in the City of Manaus, Amazonas, Brazil: Monitoring of the Water Quality in the São Raimundo Basin Between 2020 and 2021
브라질 국외연구자료 연구보고서 - Water, Air, & Soil Pollution 발간일 : 2024-03-20 등록일 : 2024-03-20 원문링크
In developing countries, such as Brazil, public policies for monitoring surface water quality are precarious. Although the country has legal norms that establish water quality parameters, and the Water Quality Index (WQI) is used as an assessment tool, the management of surface water is neglected in cities such as Manaus. The objective of this study was to evaluate the water quality of the São Raimundo basin in Manaus during the years 2020 and 2021. The following parameters were evaluated: dissolved oxygen (DO), thermotolerant coliforms (Colif), biochemical oxygen demand (BOD), pH, temperature (Temp), total nitrogen (Ntotal), total phosphorus (Ptotal), turbidity (Turb), and total solids (Sol.T). ANOVA showed that the water quality is constantly low, and in no period of either year did it present acceptable levels for use. The Colif result having a mean value of 96.7 × 103 NMP 100 mL−1 in the month of February 2020. October 2020 and 2021 presented the worst results for the WQI with values of 27.7 and 28.2, respectively. Multiple regression showed DO, Turb, BOD, and Ntotal as being the most significant parameters, which indicates that the pollution probably originates from sewers and industrial effluents. This is the first study to monitor the waters of the São Raimundo basin using this approach. The results show the need for urgent treatment of the water in the basin via environmental preservation and recovery measures. This type of study could thus result in changes in the management of the water in this basin as well as in similar ones present in the Amazon region.
본 페이지에 등재된 자료는 운영기관(KIEP) 및 EMERiCs의 공식적인 입장을 대변하고 있지 않습니다.
| 이전글 | [환경] Long-Term Sustainable Energy Transition of Ecuador’s Residential Sector Usi... | 2024-03-14 |
|---|---|---|
| 다음글 | [외교/안보] Two Years Later: LAC and Russia’s War in Ukraine | 2024-03-20 |
