Monitoring indoor air quality with a DIY sensor
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- čas přidán 23. 03. 2014
- Tim Dye has been measuring our environment since he was a kid with his own weather station and a member of the North Jersey Weather Observers. "This was before the Internet," he points out, "so I guess it's not too surprising now that I'm 50 that I'm geeking out in my garage with instruments."
His garage is filled with equipment: some of it part of his garage-based weather station kit, but much of it is related to his experiments testing affordable sensors to make it easier for anyone to test the quality of the air at home, in their neighborhood, workplace, school, etc. As air quality declines in many cities worldwide, this might become of interest to more of us.
These days Dye helps the EPA test the air in America, but he recognizes that air quality can differ street by street and day by day and he thinks it's our right to know more about the air in our immediate environment. Working with AirCasting of New York City he's helped create a low-cost sensor system that uses Arduino and Android to record, map and share air quality data (carbon monoxide, nitrogen dioxide, particulate matter, as well as temperature, humidity, and noise levels).
AirCasting (Arduino-based low-cost sensor): www.AirCasting.org
Instruments shown:
Met One Beta Attenuation Monitor (BAM): www.metone.com/particulate.php
Thermo PDR-1500: www.thermoscientific.com/en/pr...
Dylos: www.dylosproducts.com/
Where Tim works: www.TDEnviro.com
KidsMakingSense: www.KidsMakingSense.org
Original story: faircompanies.com/videos/view/... - Jak na to + styl
this channel has some of the greatest video's i've ever seen
The least to say is "Il faut de tout pour faire in monde". "The world is made of many different particular people". This was really interesting!!!
I wish I could have personal little device to test my own apartment. My final word; Thanks. I really appropriate your really useful environment passion. It wakes us up to an important clean air issues.
it's been 3 years i know, but you can buy a SDS011 on ebay/amazone/... and with an arduino you can controle it
Very interesting. I was an air quality instrumentation specialist for 25 yrs so this is my geek turf so to speak.. this is my kit that I worked with day in day out.. Unfortunately he misunderstands what PM10 is but thats OK the general the gist is pretty good and still relevant to anyone who wants to setup for the own home.
Ok, that was very interesting! From smallest ideas came useful things.
This is so geeky awesome :D
The BAM 1020, wow.
I think it’s great that you have a very interesting and cool hobby. Your passion for that equipment/technology is fantastic. I’m actually a bit envious. Your knowledge and the information, technology, sensors etc etc could help ppl health and save lives. Help the *****Climate Crisis***** Carbon emissions and so much more and more. You would be the best teacher/professor anywhere you want. You have that charisma. Thank you very much.
This is really cool, this guy is cool!
Well yes! Especially ...using multiple sensors and datalogging with geopos and timestamp.
Thank you.
Testing inside the house is quite interesting too. Every house has a dust fingerprint, eg. dust settles on the floor during nighttime but gets airborn when the family gets ready for the day tasks, rises even higher during lunch/dinner time, etc... Spikes when people come or leave or when windows are opened. Those graphs differ for every house. Best time to clean : early in the morning when most dust is not airborn yet? It can be tested with cheap sensors.
Interesting guy, you can tell he found his passion at a young age.
I see you have two Dylos "large" and "small" 13:50. What models these are?
Can they measure PM in winter then there is cold (0°F is about -17.78°C) ?
Thanks for this video :)
Totally cool
Nice job! have you tried the $13 Sharp sensor?
how do you change the particles pero 0.01ft3 that you are reading and change to mg/m3?
best regards
Good idea.
Where to buy one? Making one looks way too hard.
Hi, how is the accurracy of the cheaper arduino devices compared to the "real" and expensive ones?
In my city there are very few measuring stations, I guess it's due to the cost of the stations. Also I believe that the data is not shared via any availible API-s, even though one can ask for access.
I'd like to see some real time data though and there should be information screens in the citys when the levels are very high. Luckilly I dont have astma or anything, yet I think one should inform the residents who need to be informed,
I was an air quality specialist for 25 yrs and you are correct. The reference instrumentation (METONE BAM 1020 for instance) is VERY expensive (to buy and operate) and even large cities simply cannot afford to install more than a dozen or so measurement sites. Theres a lot of work being done world-wide trying integrate these cheaper instruments with the expensive reference monitoring stations so that more relevant exposure data is available in near real-time to anyone in a city..
hii Dirksen,
does that dylon able to detect mold spore and dirt in air inside home ?
thx.
andrew
The Dylos cannot measure mold or spores inside homes.
Did I not see it? Where to buy the cheap units ?
Hi, I am a student at Loughborough University in the UK studying product design. I am currently looking into potential solutions to air pollution for commuters in polluted cities as part of my final year project.
Regarding air quality sensors is there a method/formula of converting the particle count output from an Arduino based sensor into ug/m^3 to compare to guidelines set out by the WHO? Or alternatively are there guidelines available online which refer to particle count of PM2.5/PM10 rather than in ug/m^3?
Any info would be appreciated, Thanks!
You could also try contacting some of the groups listed at the bottom of the text. Good luck!
The weather is something fantastic that is hard to comprehend, but I don't think I would have put my life to it. I wonder what made him do that.
Neceros - I grew up in New Jersey and always loved Noreaster snow storms that canceled school and that's how my fascination with weather started.
Is it better with raspberry?
Both sensor types seem practically identical to how a smoke alarm works. Would it be possible to modify an ionisation type smoke alarm to get an intensity readout, instead of an alarm?
Lord Samich let me know if you find out
Hey - these devices are more sensitive than a smoke alarm and can measure the lower concentrations (that you can't always see or smell, but are still unhealthy).
What about those little LCD devices that measure pm 1 2.5 and 10 that you can buy for 40$ from ebay? I kinda want one. Is it acceptable?
You can buy one and build it your self or buy a PurpleAir or AirBeam2 for a full product.
cool DIY project... but i dnt find the code for arduino.......
I want one of those devices
Hey, great project! I was just wondering, how can the cheapest model with all those components can cost $15? The arduino alone, without the wireless/bluetooth module should cost double that..
A brilliant video --so helpful for deciding how to monitor air quality.
Please contact me: I am impressed with the home monitoring you have set up.
yeah SECOND. If you're reading kirsten, I've been very busy. need to replace the door on the cardboard house and will be able to make videos on it in a few weeks hopefully. trying to do just about everything at once! haha. i will email you when i get the time.
"Let's start a fire in the garage. Let's close the door..." I have never heard that said before.
This is very cool! It would be cool if he would start a KickStarter or IndieGoGo project to make the aircasting device (7:33) available to more people, and maybe even make it better.
The AirCasting project is available to the public (aircasting.org) and it's free. They've created an Android app so you can hook your Android device to different sensing devices. They also have a downloadable AirCasting Air Monitor DIY guide so you can build your own Arduino-powered air monitor.
Kirsten Dirksen Awesome! Thanks for your quick feedback!
Kirsten Dirksen
But you have to make the device yourself. :(
It's pretty cool data collection, but I would be very careful making direct links with health unless you are talking about continues high concentrations in specific areas.
It wouldn't be the first time that a single issue health scare would instigate drastic measures that do more harm to the environment and health in general than good.
Yep its ok to look at data but it needs to be carefully considered and event he averaging times of the data are very important.. air quality and particles especially so are very very complex and the science understanding of the health impacts are changing all the time as new studies are published.. the old ideas of a single PM10 or PM2.5 value are now almost irrelevant.. the pollution matrix and even the meta data are now crucial in interpreting what it means for health and even then over what time scales.
No chem-trails in the sky there! He also never mentioned one word about it! I would have really like to hear he has any data on such..
It would be interesting to measure the air particles from burning incense and cigarette smoke just to show how toxic those things are. After all you are breathing that stuff in.
this is a more important issue than most of us realize.
this is why it's so HORRIBLE that the Tesla Car is being suppressed!
why is he saying the price on most of his gears -_-
so you have idea of how much it costs...
Near the end he explains how the more expensive instruments provide higher quality data. I'm pretty sure he also said he borrowed these instruments from work.
the expensive instruments like the METONE BAM 1020 are defined by the EPA as "reference instruments" all other instruments are compared against the data these ref unit provide...
can you send me you mail and help me with one like yours. the one that you took to walk arround your house.
thanks
Here in Houston, I don't need monitors for proof of shitty air quality: pollen, molds, pollutants, and Oxygen Deprivation. I don't need sophisticated equipment to tell me what I already know. What I need is a better filtration system for my air conditioner, and some kind of Oxygen Generator that I don't need to be a lung-cancer patient, in order to buy one. You should go to a big city and try to convince people that your monitoring systems really matter to them.
It would be interesting If I could barrow a device like this guy has. Then I could make prototype home made anti smog systems and see If they work. Release smoke, take measurements, then turn on the counter measure and take measurements.
Nerd Zone. But good to know. Thanks Kirsten.
better to plant a fruit tree in your garden...
to bad he can't read radiation or tell us about the chem trails..and the particulate that these toxic programs create
wrong title
it should say "Monitor MY air quality using an Arduino-Android DIY sensor"
since the title says "Arduino-Android" why the advertisement on all other devices ?
so the title should be "Monitor MY air quality using a bunch of different devices and in the end something about an Arduino-Android DIY sensor which i wont tell you how to make"
lame and pathetic
BAD !