Introduction to Particulate Matter

Particulate matter (PM) is airborne particles and droplets, that can be inhaled. Some PM is formed through physical motion, like pulverized dust getting wind swept, and other PM is formed through gaseous chemical reactions in the atmosphere. Particulate matter is regulated because it has negative health consequences, especially when it is small enough to travel deep into the lungs, and be respired.

Learn more on the wiki page

Notes tagged with pm

Ask a question about pm or Subscribe to answer questions on this topic

Notes from Tuesday’s frac sand call

by stevie about 1 month ago | 1 | 136 | 2

On Tuesday, September 11th, we held an open call in follow up to [previous discussions](https://p...

Read more

Recent conversations on the frac sand issue

by stevie about 1 month ago | 10 | 215 | 2

Over the past month or so I've been getting in touch with some friends in the Midwest area who a...

Read more

PM 2.5 Air Quality Index for Keller, Texas

by jiteovien about 2 months ago | 9 | 397 | 2

I downloaded Purple Air data for Keller, Texas, as described in the [Download & Analyze Purple Ai...

Read more

Download & Analyze Purple Air data

by jiteovien about 2 months ago | 0 | 317 | 3

To do this activity you do not need to actually have a PurpleAir. ** ** On the [Purpl...

Read more

The fight to get out of Pascagoula

by stevie 2 months ago | 4 | 542 | 4

Pascagoula, Mississippi hosts 12 facilities that report to the federal Toxics Release Inventory, ...

Read more

Overview: Hackteria Remix: Building a Basic Microscope with Raspberry Pi

by partsandcrafts 11 months ago | 13 | 2,232 | 6

A microscope at its core consists of 4 things being held in place in relationship to each other...

Read more

MACA - Open AQ monitor - Second prototype

by nanocastro New Contributor over 1 year ago | 18 | 786 | 10

The MACA Open Air Quality Monitor project (Monitor Abierto de Calidad del Aire in spanish) star...

Read more

Hand-cut or lasercut a simple DIY microscope stage

by warren 6 months ago | 1 | 249 | 1

We're working on simpler and cheaper ways to make good DIY microscopes, working from this @partsa...

Read more

Report: Particle Visualization Event

by stevie 7 months ago | 0 | 226 | 3

Testimonial: A farmer in Hixton Wisconsin stood up in front of the group and began to tell hi...

Read more

How to Make a Simple Smartphone Microscope #citizenscience #science #DIY #3dprinting

by Zengirl2 8 months ago | 4 | 272 | 3

A recent post on [Digital Trends](

Read more

6. Looking at Dust (and other things)

by partsandcrafts 8 months ago | 2 | 265 | 3

NOTE: This is the least-well-developed part of the process and is a complicated enough project t...

Read more

Particle Visualization Event in Hixton, WI

by gretchengehrke 8 months ago | 4 | 324 | 1

Public Lab is hosting an event to visualize airborne particles from frac sand mining using samp...

Read more

Visualize live sensor data with p5js and an Arduino

by warren 8 months ago | 7 | 684 | 2

(This is a draft!) I made a simple p5js sketch (read below) to live sensor data off of an Arduino...

Read more

Python and openCV to analyze microscope slide images of airborne particles

by amirberAgain 9 months ago | 39 | 1,105 | 7

Following the Jan 9th air quality open call I wanted to see what can be done with a microscope sl...

Read more

Thoughts on Low Cost air quality sensors

by guolivar New Contributor 9 months ago | 3 | 944 | 6

This was prompted by a [question by warren](

Read more

Changes in factory pollution and asthma emergency department visits

by DrJessie New Contributor 11 months ago | 0 | 169 | 2

I'm thrilled to share a publication link on ambient air pollution and asth...

Read more

Re-posting 2016 Dustduino report

by liz over 1 year ago | 0 | 176 | 1

Re-posting from the sensor journalism list: excerpt of @Willie Shubert's message from March 24, 2...

Read more

Issue briefing: ultrafine particle pollution from dehydrated biosolids

by liz over 1 year ago | 1 | 192 | 3

lead image: co-product being dumped onto agricultural fields Slaughterhouses, human waste t...

Read more

Changing filters on the pDR-1500

by mathew over 1 year ago | 0 | 268 | 2

The pDR-1500 needs its filter changed very 24 hours of runtime. Filters may also be used for [gra...

Read more

Practicing a PM hotspot survey in New Auburn, WI

by mathew over 1 year ago | 5 | 424 | 2

Attempting a Hotspot survey in New Auburn, WI with: @Stevie, @Gretchen, @Warren, @marlokeno, Jonn...

Read more

MiniVol pre-deployment preparation, Updated

by mathew over 1 year ago | 0 | 315 | 1

This activity is a replication of [this note](/notes/mathew/02-09-201...

Read more

UWEC air quality monitoring

by bkleist over 1 year ago | 3 | 232 | 2

![image description](

Read more

Site Survey for a Minivol

by mathew over 1 year ago | 0 | 444 | 1

Heather and Bruce Andersen live in Bloomer, Wisconsin, and want to setup a [MiniVol to identify d...

Read more

Troubleshooting leaks on the MiniVol

by mathew over 1 year ago | 0 | 151 | 0

This activity is to troubleshoot leaks on the Minivol PM monitor. If you have ...

Read more