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Assess Turbidity in Water

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As explained in @donblair's primer, measuring turbidity means "measuring the amount of suspended solids in water -- solids that haven't fully dissolved". That is, "turbidity, an optical technique for assessing suspended solids in liquid -- is an important water quality parameter. Typically, light is shone into a liquid sample, and the amount of light scattered back out of the sample (off of particles suspended in it) is measured; the intensity of this scattered light is considered to be related to the amount of suspended solids in the sample." (reference)

image credit: https://castlebrookestreamstudy.weebly.com/

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  • Info about regulations
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There are a LOT of resources available on these pages by @donblair and others:


Questions

Title Author Updated Likes Comments
DFRobot Turbidity Sensor Troubleshooting @mimiss about 2 years ago 5
Can you relate Secchi disk measurements to turbidity sensor measurements? @wmacfarl about 2 years ago 7
How can I calibrate a turbidity sensor? @wmacfarl almost 2 years ago 4
How do I choose a method for monitoring turbidity? @stevie over 3 years ago 2
Has anyone built a secchi disk before? @stevie over 3 years ago 4
What should we look for when sourcing turbidity tubes? @stevie over 3 years ago 7
What are different methods of measuring water turbidity? @warren almost 4 years ago 3
How is water turbidity regulated? @warren almost 4 years ago 3
How can we detect contaminants in water samples with a DIY spectrometer using reagents? @warren almost 4 years ago 1
Can a DIY spectrometer be used to measure water turbidity? @warren almost 4 years ago 6
Water Filter Effectiveness @Mempet over 4 years ago 4
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Sensors

Here's a list of different turbidity sensors and measurement systems. See below for some Do-It-Yourself approaches to measuring turbidity, and this page for more information on how turbidity sensors works.

(see Water sensors for more, and click here to add to this table)


Activities

Activities for people to test methods (these develop over time)

Add an activity  or request an activity guide you don't see listed

Activities should include a materials list, costs and a step-by-step guide to construction with photos. Learn what makes a good activity here.


Existing work

Title Author Updated Likes Comments
Post your photos of possible wastewater pollution! / ¡Postea tus fotos de aguas posiblemente residuales! 📷 @bhamster 4 months ago 2
Water testing protocols for Sulfide Mining? @Greenhorns 6 months ago 1
How to Connect a pH Sensor to the Simple Water Sensor Platform @wmacfarl almost 2 years ago 0
DFRobot Turbidity Sensor Troubleshooting @mimiss about 2 years ago 5
Building the Simple Turbidity Sensor Prototype @wmacfarl almost 2 years ago 12
Oil and Gas Hardware Fellow Status Update: Week 6! @wmacfarl about 2 years ago 1
Oil and Gas Hardware Fellow Status Update: Week 6! @wmacfarl about 2 years ago 0
Can you relate Secchi disk measurements to turbidity sensor measurements? @wmacfarl about 2 years ago 7
How can I calibrate a turbidity sensor? @wmacfarl almost 2 years ago 4
Testing of DF Robot Turbidity Sensor @wmacfarl about 2 years ago 1
What are some different ways to use turbidity sensors? @lekhidugtal over 2 years ago 0
MicrobeMeter - an innovative photometer for continuous measurement of microbial growth @humanetechnologies almost 3 years ago 4
LaMotte and Earth Force low cost Water Monitoring kit @stevie over 3 years ago 2
Can the spectrometer or turbocharger be used for lal testing? @Ag8n over 3 years ago 3
Turbidity Sensor Assembly @MadTinker over 3 years ago 9
How do I choose a method for monitoring turbidity? @stevie over 3 years ago 2
Has anyone built a secchi disk before? @stevie over 3 years ago 4
What should we look for when sourcing turbidity tubes? @stevie over 3 years ago 7
Photometer Kit idea @programmer1200 almost 4 years ago 12
What are different methods of measuring water turbidity? @warren almost 4 years ago 3
How is water turbidity regulated? @warren almost 4 years ago 3
How can we detect contaminants in water samples with a DIY spectrometer using reagents? @warren almost 4 years ago 1
Can a DIY spectrometer be used to measure water turbidity? @warren almost 4 years ago 6
7 Ways to Measure, Monitor, and Evaluate Water Quality @anngneal over 2 years ago 2
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