A new water quality index for protection of aquatic life appllied to the Atibaia River, region of Campinas/Paulínia cities - São Paulo State

Quimica nova

Jardim, Wilson de F.¹  Silva, Gilberto Silvério da² 

[1] Universidade Estadual de Campinas, Campinas, Brasil;Universidade Tecnológica Federal do Paraná, Medianeira, Brasil

关键词: water quality index;    Atibaia River;    ammonia and dissolved oxygen.;   

DOI  :  10.1590/S0100-40422006000400012

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this papera water quality index is developed to subsidize management actions in the AtibaiaRiver for upon protection of aquatic organisms. This index is composed of twomeasurable environmental parameters normaly, ammonia and dissolved oxygen, thelatter representing the contribution of organic matter. Concentrations of thesetwo variables were normalized on a scale from 0 to 100 and translated into statementsof quality (excellent, good, regular, bad and very bad). The index was appliedto three monitoring points in the Atibaia River and compared to other indicesused by the State of São Paulo Environmental Agency (CETESB). The resultsshowed that the degradation in this watershed follows the urban population density.The developed index is more restricted than the other ones routinely used toinfer water quality.

【 授权许可】

CC BY