ArticleSensors (Basel, Switzerland)2019
A Low-Cost Continuous Turbidity Monitor.
Article in Sensors (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed.
- Experimental Study on Dual-Structure Polymer Optical Fiber Sensors for Turbidity Detection.Sensors (Basel, Switzerland) · 2026Article
- Multi-Wavelength Calibration of a Low-Cost High-Range Turbidimeter: Analysis of the Dispersion Regime.ACS omega · 2025Article
- Study on the influence of different factors on the direct treatment of high turbidity water by microfiltration processes.RSC advances · 2025Article
- Article
- Low-Cost Turbidity Sensor to Determine Eutrophication in Water Bodies.Sensors (Basel, Switzerland) · 2023Article
- Development of Innovative Online Modularized Device for Turbidity Monitoring.Sensors (Basel, Switzerland) · 2023Article
- Ötz-T: 3D-printed open-source turbidity sensor with Arduino shield for suspended sediment monitoring.HardwareX · 2023Article
- Development of a Frugal, In Situ Sensor Implementing a Ratiometric Method for Continuous Monitoring of Turbidity in Natural Waters.Sensors (Basel, Switzerland) · 2023Article
- Laboratory evaluation of open source and commercial electrical conductivity sensor precision and accuracy: How do they compare?PloS one · 2023Article
- Open-source, low-cost, in-situ turbidity sensor for river network monitoring.Scientific reports · 2022Article
- Hardware Selection and Performance of Low-Cost Fluorometers.Sensors (Basel, Switzerland) · 2022Article
- Advances in Optical Based Turbidity Sensing Using LED Photometry (PEDD).Sensors (Basel, Switzerland) · 2021Article
- Detecting Climate Driven Changes in Chlorophyll-a Using High Frequency Monitoring: The Impact of the 2019 European Heatwave in Three Contrasting Aquatic Systems.Sensors (Basel, Switzerland) · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Turbidity describes the cloudiness, or clarity, of a liquid. It is a principal indicator of water quality, sensitive to any suspended solids present. Prior work has identified the lack of low-cost turbidity monitoring as a significant hurdle to overcome to improve water quality in many domains, especially in the developing world. Low-cost hand-held benchtop meters have been proposed. This work adapts and verifies the technology for continuous monitoring. Lab tests show the low-cost continuous monitor can achieve 1 nephelometric turbidity unit (NTU) accuracy in the range 0-100 NTU and costs approximately 64 USD in components to construct. This level of accuracy yields useful and actionable data about water quality and may be sufficient in certain applications where cost is a primary constraint. A 38-day continuous monitoring trial, including a step change in turbidity, showed promising results with a median error of 0.45 and 1.40 NTU for two different monitors. However, some noise was present in the readings resulting in a standard deviation of 1.90 and 6.55 NTU, respectively. The cause was primarily attributed to ambient light and bubbles in the piping. By controlling these noise sources, we believe the low-cost continuous turbidity monitor could be a useful tool in multiple domains.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.