Design and implementation of a low-cost multiparameter probe to evaluate the temporal variations of water quality condit

  • PDF / 13,268,055 Bytes
  • 18 Pages / 547.087 x 737.008 pts Page_size
  • 100 Downloads / 229 Views

DOWNLOAD

REPORT


Design and implementation of a low-cost multiparameter probe to evaluate the temporal variations of water quality conditions on an estuarine lagoon system L. A. Méndez-Barroso & J. A. Rivas-Márquez Sosa-Tinoco & A. Robles-Morúa

&

I.

Received: 14 April 2020 / Accepted: 11 October 2020 # Springer Nature Switzerland AG 2020

Abstract The measurement of physicochemical variables to infer water quality is important since they help determine the distribution and abundance of aquatic organisms or pollution-related problems. Recently, the development of low-cost probes is a suitable alternative for continuous monitoring of these variables rather than the use of expensive instruments. In this work, a low-cost multiparameter probe (LCMP) has been developed to monitor water quality in an estuary located in Northwestern Mexico during a 3-month period. The LCMP integrates different sensors to an Arduino Nano microcontroller allowing to measure electrical conductivity, dissolved oxygen, pH, salinity, water temperature, and tide level. Data files were stored in a data logger system consisting of a secure digital (SD) card module and a real-time clock module coupled to the Arduino microcontroller. To ensure continuous operation, the system L. A. Méndez-Barroso (*) : J. A. Rivas-Márquez : A. Robles-Morúa Departamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, 5 de Febrero 818 sur, Ciudad Obregón 85000 Sonora, Mexico e-mail: [email protected] L. A. Méndez-Barroso : I. Sosa-Tinoco Laboratorio Nacional de Resiliencia Costera (LANRESC), Northwest headquarters, Ciudad Obregón, Mexico I. Sosa-Tinoco Departamento de Ingeniería Electrica y Electrónica, Instituto Tecnológico de Sonora, Ciudad Obregón, Mexico

was powered by four 3.7 V, 10,000 mAh rechargeable LiPo batteries. All LCMP components were encapsulated in a polyvinyl chloride pipe. The results show that the LCMP had a good agreement with a commercial-grade multiparameter probe and was able to monitor continuously in hourly time steps. Finally, the LCMP proved to be an alternative for the establishment of coastal observatories, which has been deficient due to limited funding. Keywords Water quality . Estuarine lagoon system . Low-cost probes . Environmental monitoring

Introduction Changes in water quality conditions in estuarine lagoon systems need to be monitored continuously because they often affect the biodiversity of very sensitive biological populations (Gikas et al. 2006; Glasgow et al. 2004). Estuaries play a crucial role in both human and ecosystem activities because they provide important ecosystem services. For example, they provide nesting and feeding habitats for many aquatic plants and animals. Most of the economically important fish species spend part of their lives in estuaries and also are important stopovers for several migratory bird species. Furthermore, estuaries filter sediments and contaminants from streams before they flow into the ocean, providing nutrients and clearer unpolluted waters (Cyrus and Martin 1991; Bate et