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Member's Forum Are there good sensors for pollen?
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Forum Thread Details
  • Replies 18 replies
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  • air quality
  • air sensor
Related

Are there good sensors for pollen?

cstanton
cstanton over 5 years ago

I realised that I've never thought about how pollen is tracked.

 

image

 

I keep thinking about creating a weather station to put just outside, maybe connecting it over lorawan and having sensors that pick up this, water level, wind, temperature, all so I can collect it and present it on some kinda dashboard to prepare me for the day ahead, and pollen would be really good to have since I suffer from all sorts of allergies (frankly even picking up dust levels in the house would also be good). However I realise I don't even know where to start!

 

I wonder if this's mostly a time of year calculation based upon seasons and life cycle of the plants, or is it actually detected in the air?

 

How do you even differentiate between different pollen in the air? Are/is there particular sensors that're better for this than others? How do you differentiate between pollen and dust? What about pollution levels?

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  • Jan Cumps
    Jan Cumps over 5 years ago +7
    I would be your best sensor. If there is a single pollen around, I cry, sneeze, sniff and suffer . I'm curious too how / if this can get detected by some sensor. I thought they used filters and tissues…
  • dougw
    dougw over 5 years ago +6
    There are some very expensive pollen detectors that provide a pollen count, if you can afford them. The low cost particle detectors have a hard time with particles of pollen size. The readings from these…
  • cstanton
    cstanton over 5 years ago in reply to Jan Cumps +5
    Perhaps they do, or maybe it's just too new of a thing ?
Parents
  • dougw
    dougw over 5 years ago

    There are some very expensive pollen detectors that provide a pollen count, if you can afford them.

    The low cost particle detectors have a hard time with particles of pollen size. The readings from these sensors are not useful indications of pollen.

    Determining the type of pollen is a whole magnitude tougher problem, probably requiring a fancy microscope.

    Similar to Jan - I am a great detector for ragweed and oak pollen.

    I keep looking at new low-cost sensors to see if they can detect pollen, but so far have not found a good solution.

    I think such a sensor is feasible, just hasn't quite made it to market yet.

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  • dougw
    dougw over 5 years ago

    There are some very expensive pollen detectors that provide a pollen count, if you can afford them.

    The low cost particle detectors have a hard time with particles of pollen size. The readings from these sensors are not useful indications of pollen.

    Determining the type of pollen is a whole magnitude tougher problem, probably requiring a fancy microscope.

    Similar to Jan - I am a great detector for ragweed and oak pollen.

    I keep looking at new low-cost sensors to see if they can detect pollen, but so far have not found a good solution.

    I think such a sensor is feasible, just hasn't quite made it to market yet.

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  • cstanton
    cstanton over 5 years ago in reply to dougw

    Perhaps a "sensor" though more of a detector, using a camera and lenses could work?

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  • dougw
    dougw over 5 years ago in reply to cstanton

    Ragweed pollen is about 17 um in diameter and oak pollen is about 30 um in diameter.

    Camera chip pixel sizes range from about 2 um to 10 um so it should be possible to make a system that can obtain both pollen count and pollen size.

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  • axawire
    axawire over 4 years ago in reply to cstanton

    I know the threads old but I stumbled over this thread first in all the searching so maybe it helps others.

     

    I found this paper talking about using a image sensor like you mentioned but with out having to use the expense of a lens systems https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6062327/ I think this is quite a promising possibility for DIY development.

     

    Someone else mentioned later in this thread about PollenSense https://www.pollensense.com/pages/automated-particle-sensors which is basically using a microscope and AI vision inspection but as that person said hardware is expensive. So it would seem definitely possible.

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  • cstanton
    cstanton over 4 years ago in reply to axawire

    Thanks image

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