###OpenHour **Mondays 8:00pm EST** on Google Hangout!### OpenHour is a weekly interactive seminar hosted by the Public Lab Community. Mondays at 8:00pm EST. The topics of open hour vary from presentations on tools and methods, discussions on environmental issues, to approaches to data-based advocacy. OpenHour is a great way to meet people in the Public Lab Community. See you at OpenHour! ####Take a moment to fill out the **[OpenHour Feedback Survey](https://docs.google.com/forms/d/14vxXed9Vr4VKRA2HQmhsm911hdK5DIfiFSvzJuvJWsg/viewform?usp=send_form)** ####How to Join There are two ways to join OpenHour: 1. Click on the video below and sign into the chat room to chat with speakers and other watchers. 2. Use the "Join the Call Live" button that will appear below the video just before the call starts. ###Topic Schedule:### ####JULY 28: Open Air: air pollutants and air quality monitoring tools This week we will be talking about air pollutants and different tools that are being developed to monitor for them. ####Connect with us in a chatroom below Call guests include: * [Mathew Lippincott](/profile/mathew) who is working on [silica and particulate sensing](http://publiclab.org/notes/mathew/06-12-2014/diy-dust-monitoring-dylos-in-wisconsin). * [Matthew Schroyer](http://publiclab.org/profile/Schroyer) who is developing the [DustDuino ](http://publiclab.org/notes/Schroyer/06-26-2014/broadcast-dust-readings-from-a-smartphone)project. * [Sophie Kornblug](http://publiclab.org/profile/sophie) and [Megan McLaughlin](http://publiclab.org/profile/megan) who are working on [Hydrogen Sulfide sensing](http://publiclab.org/notes/megan/9-5-2012/next-round-experiments) and tool [development around it.](http://publiclab.org/notes/sophie/07-16-2014/sensing-hydrogen-sulfide-from-cafo-emissions-in-poweshiek-county-iowa) Bring your research, your ideas, and your questions; and join us for OpenHour
**Propose new sessions on the [Talk page](http://pad.publiclab.org/p/openhour).** **** ##Past OpenHours ###JULY 21: Water Contaminants and Detection Missed the event? See it here! Water Contaminants and ways to detect them with guest speakers: * [Catherine D'Ignazio ](http://publiclab.org/profile/kanarinka) and * [Don Blair](http://publiclab.org/profile/donblair) on [water contaminants](http://publiclab.org/wiki/common-water-contaminants) and the development of the [Riffle](http://publiclab.org/wiki/riffle) * [Jack Summers ](http://publiclab.org/profile/jsummers) on the development of the [Potentiostat](http://publiclab.org/wiki/potentiostat)
###JULY 14: Spectral Analysis Missed the event? See it here! Spectral Analysis, How can it be used? And where can the science of spectrometry take us in the future? We will be joined by: * [Jeff Warren](http://publiclab.org/profile/warren), Public Lab Research Coordinator, who will be discussing spectrometry, and its applications for oil sampling. * [Amy Soyka](http://publiclab.org/profile/amysoyka) who will discuss color theory, and her project to testing dust and water samples from the Latrobe valley following a mine fire! ###JULY 7: Near Infrared Photography Missed the event? See it here! Near-Infrared Imaging This week on OpenHour we discussed Near-Infrared Imaging and infragram.org!
[Ned Horning](http://publiclab.org/profile/nedhorning) and Dorn Cox also joined covering topics of: * The science and technology behind NIR, * Examples of it in use, and * Where this technology could head in the future! ###JUNE 30: Aerial Mapping Missed the event? See it here! Aerial mapping and new collaborative map developments! Learn about aerial photography and mapknitting. Hear about a new software development and ways use maps to tell stories through text, images, multimedia and annotations. See community case studies that apply these tools to projects, and help shape the future of mapmaking in your community! During this OpenHour we heard from: * [Mathew Lippincott](/profile/mathew) on Aerial Photography and Mapknitting * Justin Manley on New updates to coming to Mapknitter.org * [Scott Eustis](/profile/eustatic) on mapping the [Barataria](/wiki/barataria-bay-mapping-project) * [Nicholas Johnson](/profile/nicholas) and [Bronwen Densmore](/profile/bronwen) on mapping [Freshkills Park](/notes/nejohnson2/06-17-2013/itp-camp-fresh-kills) and [Dead Horse Bay](/notes/bronwen/11-03-2013/attempted-kite-mapping-at-dead-horse-bay)! To learn about other types of events, see [publiclab.org/events](/events)