As explained [in @donblair's primer](/notes/donblair/08-25-2015/turbidity-001), 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](/wiki/turbidity_sensing)) _image credit: https://castlebrookestreamstudy.weebly.com/_ This page needs help! * Info about regulations * Info about ecological or human health impacts * Advocacy leverage points * Constraints we're working within: cost, complexity, sensitivity, time There are a LOT of resources available on these pages by @donblair and others: * https://publiclab.org/notes/donblair/08-25-2015/turbidity-001 * https://publiclab.org/wiki/turbidity_sensing **** ## Questions [questions:turbidity] **** ## 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](https://publiclab.org/wiki/turbidity_sensing) for more information on how turbidity sensors works. * Kelley et al., An Affordable Open Source Turbidimeter http://www.mdpi.com/1424-8220/14/4/7142/pdf * Hackteria.org, Turbiduino: http://hackteria.org/wiki/DIY_turbidity_meters * Lambrou et al., A Nephelometric Turbidity System for Monitoring Residential Drinking Water Quality: http://www2.ucy.ac.cy/~faniseng/publications/SENSAPPEAL09.pdf - Fondriest review: http://www.fondriest.com/environmental-measurements/equipment/measuring-water-quality/turbidity-sensors-meters-and-methods/ - Hach overview: http://www.hach.com/asset-get.download-en.jsa?code=61798 (see [Water sensors](https://publiclab.org/wiki/water-sensors) for more, and [click here to add to this table](https://docs.google.com/spreadsheets/d/1UwjRqU8kHTwEcnDdO2Zxkr8zkFkaGfyePJ-cdnxJzw0/edit#gid=28737041)) **** ## Activities Activities for people to test methods (these develop over time) [activities:turbidity] **** ## Existing work [notes:turbidity] ...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Christy1115 | "I found the article insightful. It breaks down practical methods for evaluating water quality, making complex processes easy to understand. I parti..." | Read more » | 7 months ago | |||
| HappyFish | "It is also possible to measure dissolved CO2. But mostly, all these parameters can now be monitored with digital sensors reporting into a unified ..." | Read more » | 9 months ago | |||
| jhondue123456 | "https://www.google.com/ " | Read more » | 9 months ago | |||
| jhondue123456 | "https://www.google.com/ " | Read more » | 9 months ago | |||
| veppel2023 | "I don't know much about the importance of monitoring water quality, but if it's about screw house " | Read more » | about 1 year ago | |||
| getprostadine | "Additional ways include dissolved oxygen, pH, temperature, salinity and nutrients (nitrogen and phosphorus) Prostadine " | Read more » | over 1 year ago | |||
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| getprostadine | "Here are additional ways: dissolved oxygen, pH, temperature, salinity and nutrients (nitrogen and phosphorus) Visit Prostadine Prostate Support " | Read more » | over 1 year ago | |||
| mamamia0819 | "Nice project! Our company(https://www.creative-biogene.com) is also engaged in microbe species. Your task is quite useful. " | Read more » | about 3 years ago | |||
| sirazul71 | "Nice writing. Thanks Life Store is one of the best and most popular online stores. You will find everything you need in the life store. Visit in ou..." | Read more » | over 3 years ago | |||
| alejobonifacio | "¡Hola! Los últimos días fui al río Suquía en Córdoba, Argentina y tomé algunas fotos ...: flash de cámara: En este lugar se supone que solo llega a..." | Read more » | over 3 years ago | |||
| bhamster | " @bhamster has marked @alejobonifacio as a co-author. " | Read more » | over 3 years ago | |||
| liz | "Have you thought at all about whether you are aiming to go directly to procuring lab data of baseline water quality that lab scientists will testif..." | Read more » | over 3 years ago | |||
| waniakzmi | "You are doing well for well-being looking forward to it we are working to provide the best ease by providing medical equipment and products online ..." | Read more » | over 3 years ago | |||
| MarketingWeb | "Excellent article. I'm starting to look for information about the quality of the water we drink and your article helped me a lot. Thanks. " | Read more » | over 3 years ago | |||
| louiseb90 | "It's great work. Useful for many countries that want to know the quality of their water. Thanks for this article. " | Read more » | about 4 years ago | |||
| digitaldipak | "Loved the tips given with proper and up to date insights. Thanks a lot for sharing such innovative ideas on such a demanding topic. Good day Printo..." | Read more » | about 4 years ago | |||
| Sholihul | "Where for buy container to turbidity? " | Read more » | almost 5 years ago | |||
| mcafeecloud | "This is very Amazing and Very Informative Artical we get a lot of information from this article we really appreciate your team work keep it up and ..." | Read more » | almost 5 years ago | |||
| joyofsoy | "@mmbaustian did exactly this in Barataria Basin! Curious to know the answer from Hoon — Cyndhia R. (@CoastalRedwoods) February 5, 2020 " | Read more » | almost 5 years ago | |||
| joyofsoy | "Perhaps if you collect both secchi and turbidity data frequently over a long time period at different sites and plot all the data, you could identi..." | Read more » | almost 5 years ago | |||
| joyofsoy | "Maybe you could make a daily calibration curve?— Diana R. Di Leonardo (@SwirlingSands) February 5, 2020 " | Read more » | almost 5 years ago | |||
| joyofsoy | "You could maybe make one for a specific site but I'd want to test it over a long time period before using it.— Diana R. Di Leonardo (@SwirlingSands..." | Read more » | almost 5 years ago | |||
| joyofsoy | "And if you were to come up with a conversion factor, I imagine it would probably be very site and time specific, it wouldn’t be a value you could a..." | Read more » | almost 5 years ago |