Identifying water factors that are related to ammonia nitrogen concentrations in Columbia River using a reversed hazard exponential model

Abstract

Ammonia nitrogen is a compound that in its abundance is related to the inadequate discharge of industrial and domestic effluents. Since high concentrations of ammonia nitrogen can directly affect the water quality or disturb the marine environment, this study examined the ammonia nitrogen concentrations in Columbia River, USA in a fixed period (from January, 2014 to January, 2020) related to some water factors. Some interesting conclusions were obtained in this study as the identification of dissolved oxygen (in mg/L), pH, specific conductivity (in umhos/cm), and temperature (in °C) as potential factors affecting the ammonia nitrogen concentrations in Columbia River which may alert authorities to keep restrictive strategies to control the advance of this kind of water pollution. The results of this study could be extended to other regions of the world, especially in more impoverished countries usually with precarious water pollution control systems with implications for public health.

DEVELOPMENT AND EVALUATION OF AN IoT-BASED PORTABLE WATER QUALITY MONITORING SYSTEM FOR AQUACULTURE

“…DO is one of the water quality parameters most directly related to water pollution, as well as to aquatic biota (Csábrági et al, 2019). High concentrations of NH3-N can significantly impact the quality of water, and pH and WT are also critical indicators in water quality monitoring (Santos et al, 2022;Jiaqi et al, 2019). In this study, the monitoring efforts were focused on four key water quality parameters: DO, NH3-N, WT, and pH.…”