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March 21, 2010, 03:13:37 PM
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Vernier Discussion Forum > Community Commons > Do-It-Yourself > Topic: Using a light sensor to study air pollution

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Topic: Using a light sensor to study air pollution (Read 10633 times)

Vernier Forum Admin
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Using a light sensor to study air pollution
« on: January 17, 2007, 10:28:15 AM »

Posted on: 2002-02-26 14:34:00 by Fernando Espinoza

A 'detector' can be built with simple materials (e.g. a plastic container and transparent adhesive tape that can trap pollution particles. The detector is placed over the vernier light sensor and a reading taken when the tape is clean is the reference point. When the tape has been exposed, the 'dirty' readings can be compared to the clean ones to get a percentage of deposition of pollution on the detector. I have used it to develop projects that last several months and that enable students to get very good results when compared to the data published by the EPA.

Reference: Espinoza F. (2000). The Light Meter: A Powerful Tool in Physical Science. Science Activities. Vol.37, No.1. (10-15).


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Vernier Forum Admin
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Re: Using a light sensor to study air pollution
« Reply #1 on: January 17, 2007, 10:28:36 AM »

Posted on: 2002-03-14 10:54:00 by Robyn Johnson

I have done this as well and it works like a charm. I have wanted to study cigarette smoke and indoor air pollution as well, but haven't done it yet. Let us know if any of you out there try something!


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leannaaker
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Posts: 9

Re: Using a light sensor to study air pollution
« Reply #2 on: February 10, 2007, 10:17:20 PM »

What a cool idea. We are starting a project next year to collect local data and relate it to problems of local interest (like light intensity and seasonal affective disorder....we live around Seattle), etc. This would be a cool thing to add in. I hadn't thought of the tape idea to capture particulates. Neat!


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whygest
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Re: Using a light sensor to study air pollution
« Reply #3 on: August 03, 2009, 05:40:28 AM »

I have found some cool information for the jobs here:

http://avery.home.mindspring.com/LPmeter.htm


« Last Edit: August 06, 2009, 01:25:29 AM by whygest »	Logged

rickr
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Posts: 1

Re: Using a light sensor to study air pollution
« Reply #4 on: August 27, 2009, 08:30:00 PM »

It might be cool also to use a ProScope (or other digital microscope) to take pictures of the particulates collected by the tape


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demco25
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Re: Using a light sensor to study air pollution
« Reply #5 on: October 28, 2009, 01:25:29 AM »

Quote from: Vernier Forum Admin on January 17, 2007, 10:28:36 AM

well, i must say that it is a very interesting choice.
it will help not only people from the harmful effect of smoking but also mother nature will surely benefit on this study of yours.


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MelOlbeira
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Posts: 1

Re: Using a light sensor to study air pollution
« Reply #6 on: March 11, 2010, 11:07:17 AM »

The light sensor idea is cool. Is there any where to get the results of the reports on the internet?


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