The total suspended solids (TSS) concentration is a relevant parameter for stream management. A high content of TSS has a negative impact on the ecological habitats and the aquatic environment, and could also be a limitation for the exploitation of surface water. The determination of TSS concentration through water sampling and posterior laboratory analysis is a complex and economically expensive procedure. In this regard, turbidity arises as a useful surrogate measure that allows the indirect estimation of the TSS concentration in a simple and economically convenient way. In the context of a severely deteriorated water supply system, the Napostá Grande stream constitutes a valuable resource for human and industrial consumption in the City of Bahía Blanca. The general objective of the present investigation is to develop statistically based relations between the parameters involved in the suspended solids transport, in order to characterize this phenomenon through the measurement of variables of simple and straightforward field determination. The statistical relationship between the TSS concentration and turbidity and between discharge and solid flow rate was explored. In both regression analyses, the statistical correlation resulted highly significant, and therefore represent valid calibration tools for future solids transport modelling analysis and prediction as well as for sedimentological balances. A comparative analysis of the solids transport between the closure of the medium drainage basin and at the outer limit of the suburban area of Bahía Blanca City, suggests the existence of erosive processes affecting the stream bed and its margins at the section between both sites.

总悬浮固体 ( TSS ) 浓度是河流管理的相关参数。高含量的TSS会对生态栖息地和水生环境产生负面影响，也可能限制地表水的开发。通过水样和后验室分析确定TSS浓度是一个复杂且经济昂贵的程序。在这方面，浊度作为一种有用的替代措施出现，允许间接估计TSS以简单且经济方便的方式集中。在供水系统严重恶化的情况下，Napostá Grande 河流构成了巴伊亚布兰卡市人类和工业消费的宝贵资源。本研究的总体目标是在悬浮固体运输中涉及的参数之间建立基于统计的关系，以便通过测量简单和直接的现场确定变量来表征这种现象。TSS之间的统计关系研究了浓度和浊度以及排放和固体流速之间的关系。在这两种回归分析中，统计相关性结果非常显着，因此代表了未来固体运输建模分析和预测以及沉积学平衡的有效校准工具。对中等流域盆地关闭和 Bahía Blanca 市郊区外部边界之间固体输送的比较分析表明，存在影响两个地点之间的河床及其边缘的侵蚀过程。