Indoor Air Quality
indoor-air-quality

Much of our lives is spent indoors where we live, work, and play. What is in the air we breathe indoors affects our health and quality of life. Some common pollutants that could be present in indoor air include carbon monoxide, radon, mold, asbestos, formaldehyde, and other volatile organic compounds (VOCs). A number of projects on Public Lab have explored indoor air quality, monitoring and remediation. Check out the materials below, follow the tag indoor-air-quality and add your materials to this topic. ### Questions [questions:indoor-air-quality] ### Activities [activities:indoor-air-quality] ### Research notes [notes:indoor-air-quality!question:indoor-air-quality] ### Wikis All wiki pages relating to air quality: [wikis:indoor-air-quality] ### Regulations on indoor air quality #### Federal regulations Many of us spend a large portion of our time indoors, and yet indoor air quality remains largely unregulated at the federal level in the US [[1](https://www.epa.gov/regulatory-information-topic/regulatory-information-topic-air#indoorair)]. For office buildings and other workplaces, the Occupational Safety and Health Administration sets rules on ventilation and some air pollutants [[2](https://www.osha.gov/SLTC/indoorairquality/)], but there are no federal regulatory standards on indoor air quality for these spaces. In addition, the air we breathe inside our schools [[3](https://www.epa.gov/iaq-schools/are-schools-required-follow-epas-iaq-tools-schools-guidance)], homes, and apartment buildings also lacks federal air quality standards, leaving individual states to set their own rules. Sources: 1. [https://www.epa.gov/regulatory-information-topic/regulatory-information-topic-air#indoorair](https://www.epa.gov/regulatory-information-topic/regulatory-information-topic-air#indoorair) 2. [https://www.osha.gov/SLTC/indoorairquality/ ](https://www.osha.gov/SLTC/indoorairquality/) 3. [https://www.epa.gov/iaq-schools/are-schools-required-follow-epas-iaq-tools-schools-guidance](https://www.epa.gov/iaq-schools/are-schools-required-follow-epas-iaq-tools-schools-guidance) #### Local, tribal, or state regulations The Environmental Law Institute maintains a searchable database of indoor air quality laws in individual US states here: [https://www.eli.org/buildings/database-state-indoor-air-quality-laws](https://www.eli.org/buildings/database-state-indoor-air-quality-laws) The US Environmental Protection Agency provides links to state, tribal, and regional indoor air quality programs here: [https://www.epa.gov/indoor-air-quality-iaq/epa-regional-office-and-state-indoor-air-quality-information ](https://www.epa.gov/indoor-air-quality-iaq/epa-regional-office-and-state-indoor-air-quality-information)...


Author Comment Last activity Moderation
warren "OK, cool - i agree vertical orientation will probably work better, and OK, going to go for a letter-sized sheet; Nick, could you try to select fina..." | Read more » over 9 years ago
mathew "we should check the accuracy of the digital thermometer-- sometimes they give 3 sig figs but actually only do 2. if we switched to a vertical orie..." | Read more » over 9 years ago
nshapiro " There we go! working now. " | Read more » over 9 years ago
nshapiro "Hey Jeff, The card mock up is 5x8. The alcohol thermo and humidity meter is 9x 2.5 at its thickest point. I have 2 inch diameter coil spring humid..." | Read more » over 9 years ago
warren "Hey Nick - can you post the dimensions, or just a photo of the thermometers you have with a ruler in the photo? " | Read more » over 9 years ago
danbeavers "I did not think about measuring the AC duty cycle. I think the most influential observation was the front door being open 8 to 10 inches. By the ..." | Read more » over 9 years ago
nshapiro "@danbeavers do you know the duty cycle of the AC when you did the follow up testing? " | Read more » over 9 years ago
nshapiro "we would probably want 1 degree accuracy as the visual read out of the tube has to be multiplied by a temperature coefficient on a 1 degree scale. ..." | Read more » over 9 years ago
nshapiro " Here is what the thermo and humidity meter look like next to the card. We could still use an alcohol thermo, this one is just a bit clunky. Also ..." | Read more » over 9 years ago
danbeavers "Oh, I was making assumptions. I had not seen a pump that was set up to have 2 different attach points. So never mind about my comment! " | Read more » over 9 years ago
nshapiro "@danbeavers were you using the whisper pump or another pump? I think the whisper pump can handle one pump and one vacuum if need be " | Read more » over 9 years ago
mathew "I'm seeing 2-degree accuracy on some of those strips. are they cheaper than an alcohol thermometer? do they photograph better? buy some and lets s..." | Read more » over 9 years ago
warren "What about a thermochromic temperature strip adhered to the card? https://www.google.com/search?tbm=shop&q=thermochromic+thermometer&gws_rd..." | Read more » over 9 years ago
danbeavers "On reversing the aquarium pump: Be sure and reverse both diaphragms! " | Read more » over 9 years ago
nshapiro "@mathew I just ordered the temp/humidity meter you recommended. In terms of design maybe it can fit horizontally under the A, B, C columns? " | Read more » over 9 years ago
nshapiro "Sorry for the slow reply! I think my spam filter may have been hoarding emails from PL. The color changes from a waxy yellowish orange to pink and..." | Read more » over 9 years ago
mathew "We were talking about relative humidity being important (but accuracy not being a big deal) so including not just a thermometer but also a hygromet..." | Read more » over 9 years ago
warren "Good questions Bryan. @nshapiro, I'd put those black boxes along the top of my sketch to provide color balance help, but Bryan's right; the tube it..." | Read more » over 9 years ago
btbonval "Secondary thought: Is the gradient blue and black, or white and gold? lulz " | Read more » over 9 years ago
btbonval "What about color and white balance? Your example image shows an awfully strong red/yellow back light which will change hue of the colorimeter. It..." | Read more » over 9 years ago
warren "Hi, Nick - I'm working on some sketches of the kit; do you have any photos of the entire thing, just a bit more zoomed out? Thanks! " | Read more » almost 10 years ago
mathew "I just bought the air pump components and a graduated cylinder to try and compare @davidmack's cheapo air meter... can't wait. I'm going to try us..." | Read more » almost 10 years ago
nshapiro "I think so. Those tubes require one pump on the Draeger Tube proprietary pump. So if one were to rent their proprietary pump for a single day and a..." | Read more » about 10 years ago
sara "Exciting stuff! Do you think this method could work for other pump based tubes like these http://www.buydraegertubes.com/hydrogensulfide02b.aspx " | Read more » about 10 years ago