Originally posted on @theU on Monday, January 7, 2018.
By Abby Ghent, sports and sustainability student ambassador, Athletics and the Sustainability Office
Mind-blowing fact: According to The Washington Post, if you were born after February 1985, you haven’t experienced a month where the Earth’s average monthly temperature was below average. Rising temperatures, as well as a bunch of other compounding factors, are impacting our snowfall and our snowpack.
As someone within that demographic, who’s an ex-professional and avid skier with friends who are still pros, this fact is frightening. I understand the severity of climate change in relation to professional skiers’ jobs—their livelihood depends on that snowpack. Many of us are concerned there won’t be enough snow to hold downhill ski races in the not-so-far-away future.
I eagerly await each fall and wish to delay each spring. However, these ideas, “I want to keep skiing! I don’t want it to be summer yet!” are selfish. Wanting there to be enough snowpack to thoroughly support our water needs, however, is not. I don’t think we emphasize just how much we rely on the snow in our mountains for non-recreational usage.
Snowmelt is important for many things such as providing for personal water use, dampening (no pun intended) the chance of wildfires, supporting ecological systems and many industrial uses. In the Western U.S., 80 percent of the water runoff from snowpack in the mountains is used for agriculture, according to researchers.
The lack of snow in our mountains creates a significant positive feedback loop. A warming climate leads to less snow, which leads to less water in the ground, which leads to more fires, which leads to more loose dirt or fine particles that are lifted by stronger winds (due to more high/low pressure systems because of our warming climate), which are carried further into the mountains landing on what little snow we have, creating a lower albedo, which in turn melts the snow faster and on it goes. Just one long run-on sentence.
So, what can we do about it? There are many things that can be done but I want to focus on one thing: transportation. Here in Utah, we can see how much nastiness gets trapped in the air, and much of that comes from our cars, buses and trucks. In 2010, the amount of CO2 produced by on-road transportation (this doesn’t even include off-road vehicles and equipment) was the second largest contributor after commercial/industrial buildings (U.S. Department of Energy, 2010).
“But I have to drive to work! But I need to get to the ski area somehow!” Yes, all valid reasons to use some sort of transportation, but do we all need to take our own personal vehicles separately to many of the same places? I think we can do better. Public transit is an option, both around town and to the ski resorts. We know that taking the bus to ski areas can be more difficult than it sounds depending on your starting point, so don’t worry, there are other options. Carpooling can be convenient—ride to the ski areas or park-and-ride lots together and save on parking, gas, emissions and time.
We want you to pledge to look for carpooling and public transportation options first to get to your final destination this winter and forever.
ABOUT THE AUTHOR
Abby Ghent is a former U.S. Ski Team and University of Utah Ski Team member. She grew up in the mountains of Colorado, calling Vail her home mountain. She moved to Utah three years ago to race for the U and is currently studying environmental and sustainability studies, international studies and music.
The U offers a number of resources that allow campus community members to raise concerns with lighting and other safety issues, which can be found here. Campus police also are available to escort campus community members to a residence hall or vehicle at night, which can be arranged by calling 801-585-2677.
By Janelle Hanson, managing editor, University of Utah Communications
The University of Utah recently invested more than $600,000 to improve outside lighting by installing energy-efficient, long-lasting LED bulbs across campus. Next, the university is working to enhance lighting from Hempstead Road to Chapel Glen, thanks to feedback received from volunteers who recently canvased campus looking for dark areas.
Each year, student, staff and faculty volunteers arm themselves with flashlights and a phone to participate in the annual Walk After Dark event that helps identify and address safety and lighting concerns across campus. This past October, using a phone app to geolocate issues, nearly 140 volunteers looked for safety concerns such as broken lights, dark areas, damaged sidewalks and various other issues such as trip hazards.
“It is incredibly helpful to have the volunteers participate in this event because they bring different perspectives and concerns to the table,” said Jennifer Stones, University of Utah occupational safety manager. “We aim to identify and correct issues year-round, but this event allows us to hear directly from those who use our campus and who might have different perceptions of what is a safety concern.”
Facilities management takes the information reported and works diligently to fix those issues.
“Concerns found during the walk are typically fixed within 30 days,” said David Quinlivan, associate director of utilities and energy for Facilities Management. “We also have a team that actively patrols campus twice a month looking for areas of concern.”
To participate in the 2019 Walk After Dark, keep an eye on the “Safe and Sound” section of @theU in September 2019 for a call for volunteers.
How the project benefited the library
Then: Lights in the Special Collections area were typically on 10-13 hours per day
Now: Lights now are only activated when there is activity and only in the area where that activity is occurring
Then: A compact fluorescent bulb is 54 watts, lasts about 10,000 hours and produces heat
Now: An LED bulb is 25 watts, lasts about 50,000 hours and doesn’t produce heat.
Originally posted on @theU on November 26, 2018.
By Brooke Adams, senior news writer, University of Utah Communications
Paper and photographs can’t take the heat. Or the light.
Both elements cause historic, fragile documents to breakdown over time, much to the dismay of curators of the Special Collections at the Marriott Library.
Enter a trio of students — Sierra Govett, Dillon Seglem and Yinhuan Huang — in search of a project for Jennifer J. Follstad Shah’s environmental and sustainability studies capstone class last spring.
Govett initially proposed they tackle excessive light use across campus, especially at times when buildings are unoccupied.
“A lot of buildings on campus have lights on more than they should and we wanted to find some place we could address lighting at a large enough scale to make a difference, said Govett.
But the students abandoned that idea after realizing vast differences in lighting systems from floor-to-floor and building-to-building would make a standardized solution impossible.
Bill Leach, sustainability project coordinator for Facilities Management, suggested the students instead look at what might be done to address lighting concerns in the Marriott Library. Ian Godfrey, director of library facilities, was “not only excited about the prospect of a lighting controls project, but had an area in mind,” Leach said.
That area? Special Collections.
Leach, Godfrey and Emerson Andrews, Sustainable Campus Initiative Fund (SCIF) coordinator, helped the students conduct an audit of the space, come up with a plan and develop a budget.
Their idea: install a new lighting system with LED bulbs that are motion and daylight sensitive. Lights above each row activate only when someone moves into the area and there is insufficient daylight.
“To take light off these resources is a huge benefit for us,” Godfrey said. “Everything in here is rare and unique. Paper is always in a state of degradation. Anytime you are lowering the temperature and reducing the heat, you are slowing the deterioration process.”
The students applied for and received a SCIF revolving loan of $40,000, which paid for installation of a new lighting system over the summer. The loan fund is specifically used for energy and money saving ideas proposed by students, faculty and staff for energy conservation, renewable energy production and water conservation projects. A Rocky Mountain Power wattsmart incentive grant helped off-set some of the project’s cost.
The library will repay the loan over 13 years, using money from utility cost savings. But the impact — both monetary and in preservation of its collections — will be ongoing.
“I am thrilled that this project, initiated by these three students in my capstone class, is coming to fruition and will help to reduce the campus carbon footprint while preserving library resources,” said Follstad Shah, an assistant professor in environmental and sustainability studies and research assistant professor in geography.
The SCIF revolving loan fund used in the project is available to all students, faculty and staff who have an idea for saving energy and money. It has paid for other energy projects, such as solar panels and heating system upgrades, but this is the first lighting project, said Myron Willson, deputy chief sustainability officer.
“We were pretty excited to do something that made such a difference,” said Govett, who graduated last spring with degrees in environmental studies and ballet.
Govett and Seglem toured the retrofitted space for the first time in mid-November.
“It’s really cool to come in here and see it working with the motion sensors and all,” said Seglem, a senior majoring in environmental studies.
Funded by SCIF
The Sustainable Campus Initiative Fund, created through an ASUU initiative in 2008, collects about $180,000 yearly from a $2.50 per student fee. Since 2009, it has awarded more than $900,000 to projects aimed at enhancing sustainability on the U campus.
The fund receives about 30 to 45 proposals each year and approves grants for 20 to 25 requests, which typically range from $200 to $40,000, according to Emerson Andrews, SCIF coordinator.
Projects funded have included the edible campus gardens, a beekeeping initiative, installation of screech owl habitat boxes, Bike to the U Day, several solar energy initiatives, and the Wild & Scenic Film Festival. Learn more by clicking here.
Originally posted on @theU on November 19, 2018
By Brooke Adams, senior writer, University of Utah Communications
Last November Professor Barbara Brown and some colleagues were in the middle of interviewing a candidate for a position in the Department of Family & Consumer Studies when there was a smack on the window — a noise so loud and violent it startled and instantly silenced the candidate.
A bird in full flight had flown into the second-story window on the northeast side of the Alfred Emory Building.
Forty minutes later, interview over, Brown ventured outside and there on the ground was the still-stunned bird — a Cedar Waxwing.
Years earlier she had found a dead Bohemian Waxwing near the building, but thought it was an isolated incident. But now, as Brown surveyed the area, she found seven more carcasses under the mirrored glass entryway that perfectly reflects the sky and trees on Presidents Circle.
“It was discouraging to realize I may have been working here for years and not known I needed to take action to prevent these bird strikes,” said Brown, an environmental psychologist who studies links between physical environments and human behavior. She considers herself a “sort of birder” but Cedar Waxwings “have always been one of my favorite birds. They are the finest, cutest birds you’ve ever seen.”
Between November 2017 and March 2018, Brown counted a total of 20 dead birds near her building; most were Cedar Waxwings.
“The birds think they are flying right into an open area, smack the mirrored glass and die,” said Brown, who deduced that the birds are attracted to the fruiting crabapples on the lawn at Presidents Circle.
Brown enlisted three students to work on the project: Angelo Antonopoulos, a senior from Greece majoring in environmental and sustainability studies; Sarah Siddoway, a senior from Farmington majoring in biology; and Erika Kusakabe, a senior from West Jordan also majoring in environmental and sustainability studies.
The team also connected with Sarah Bush, an associate professor of biology who is collecting the bird carcasses to use in a parasite research project, and Lisa Thompson, exhibit developer and interpretive planner at the Natural History Museum of Utah (NHMU). Some birds, if in good structural condition, may also be prepared to use as museum specimens.
The team researched Cedar Waxwings; bird deaths; bird strikes and contributing building design factors; bird migration patterns; and mitigation measures.
They concluded that the 20 dead birds at AEB appeared significant. In comparison, the 2017 Salt Lake Avian Collision Survey of downtown Salt Lake City found only 44 dead birds in a 20-block area. In addition, the birds found downtown represented a variety of species.
They also determined that unique features of the northeast end of AEB — tunnel-like openings to multiple reflective windows that make it appear to be a passageway — were contributing to the problem.
The only way to deal with this “hotspot of death” was to mitigate the danger by somehow altering the windows, the team concluded.
The best solution was something called “Feather Friendly Bird Deterrent” — a film that is placed on windows and then removed, leaving behind little dots even spaced over the surface. Birds see the dots and recognize an obstacle, while people are still able to see through the window.
“The problem is that the site is three stories tall and to get to the upper windows you need a lift or scaffolding, which is expensive,” she said. The team learned the cost of doing all the north-end windows would be about $27,000.
Doing something, they decided, was better than nothing, so in September they applied for a $10,000 SCIF grant from the U’s Sustainable Campus Initiative Fund (SCIF) — enough money to cover a third of the windows.
“Our goals are to mitigate an existing hotspot of bird deaths from window strikes, to evaluate the effectiveness of the mitigation, and to develop a citizen science outreach component to raise awareness and identify whether other hotspots exist,” the team wrote in its grant proposal. “In this way, we are consistent with the SCIF mission statement that funds projects that ‘reduce the University of Utah’s negative impact on the environment.’”
The AEB Bird Strike Mitigation proposal received approval in October. Last week, Blake Parrish of Scottish Window Tinting installed the protective coating on a section of reflective windows.
The fact that funding allowed only a portion of the windows to be covered has created a controlled research design to test the effectiveness of the film. If additional dead birds are found, the team will be able to determine which section they struck.
The team’s grant proposal also included an educational outreach component aimed at raising awareness of the diversity of birds on campus and cataloguing other hot spots in need of mitigation.
“We hope that students start to appreciate the connections between bird life and campus life and realize it’s not like birds are ‘over there somewhere’ but that birds are all around us,” Brown said.
Siddoway worked with the NHMU’s Thompson to develop the “University of Utah Bird Window Collision Project,” a site on iNaturalist that encourages citizen engagement in science. People can upload photos of dead birds and information about the site and circumstances where the bird was found. Posters around campus advertise and encourage participation in the project.
“I am really interested in conservation,” Siddoway said. “I graduate in December and want to pursue a career in conservation and research, so this seemed up my alley. We had ups and downs and there were points we didn’t know if we would get any bird mitigation windows, but I am glad we got at least part of them.
“It is amazing, actually, that things are happening,” she said.
Bird friendly buildings
Several other buildings at the U — the S.J. Quinney College of Law and Gardner Commons — have bird-friendly windows; the features are primarily intended to reduce heat, but that also deter bird strikes. Feather Friendly films such as that used in this project are a good option for older buildings.
If you’d like to contribute to or track the University of Utah Bird Window Collision Project, click here or email the team at UUbirdstrike@gmail.com. You also can text your sightings and photos to 385-200-0813.
The university created this GIS tool to track improvements to our bicycle infrastructure.
Follow @commUTEr_servs and @GingerCannonU on Twitter for updates on campus mobility.
Orginally posted on @theU on November 19, 2018.
By Ginger Cannon, active transportation manager
The League of American Bicyclists has honored the University of Utah with a Gold Bicycle Friendly University (BFU) designation in recognition of the institution’s achievements to promote safe, accessible bicycling on campus. The standards for attaining any of the four levels of BFU awards—bronze, silver, gold and platinum—are very high and require deliberate, determined efforts to meet them. The U is one of only 24 universities in the nation to receive the Gold BFU award, which is valid through the year 2021.
“More than 3.8 million students now attend Bicycle Friendly Universities in 46 states and Washington, DC,” says BFU Director Amelia Neptune. “From large to small, urban to rural, these educational institutions are creating a powerful community of college campuses that model and support the use of bicycles for improving health, sustainability and transportation options.”
The university advanced from silver to gold designation by demonstrating progress in categories known as the 5 E’s—Engineering, Education, Encouragement, Enforcement and Evaluation. The University Bicycle Master Plan provides recommendations for improvements in each category. The Active Transportation Manager works with a leadership advisory group to set priorities and implement plan recommendations.
Significant capital funding has been committed to the addition of bikeways – whether on surrounding roadways or campus pathways – to provide safe and direct routes for bicyclists. Currently the U area supports 8 miles of signed bike routes, with the majority of interior pathways shared for bicycle travel.
“We’ve moved the dial in achieving Gold BFU designation and know that there is still more to be done to accommodate and grow our campus bicycling community. We are committed to following the vision of our bicycle master plan and incorporating more high quality routes to the campus network,” says Robin Burr, Chief Design and Construction Officer. “In order to encourage alternative modes of transportation, we need to add facilities like secure parking, showers and lockers for our daily commuters.”
Bicycles are zero emissions vehicles that help the university reach its carbon neutral and sustainability goals. Active transportation represents 13 percent of all commute trips to the U, and the highest percentage of people using a bicycle for transportation are students. A majority of commuters are just 8 miles or less from their campus destination – a reasonable biking distance no matter your skill level.
When universities invest in bicycling, great things happen: people adopt healthy habits, save money on healthcare and transportation costs, decrease the university’s greenhouse gas emissions and contribute to a fun and vibrant campus culture.
The universe is mysterious, beautiful, and unknown. The world around us and the space beyond is a cosmic soup of particles, atoms and energy, yet mixed together these things make up our bodies, our friends and family, the trees and water, the sky and the earth. While science seeks to unravel these mysteries of the universe in the lab, poetry seeks to do the same in our hearts and minds. Yet both ultimately pursue the same fundamental questions: Who are we? Why are we here? What do we do?
Kealoha, the internationally-known slam poet and poet laureate of Hawai’i has a unique understanding of the relationship between science and poetry and their potential to change our perception of the world. Trained as a nuclear engineer at the Massachusetts Institute of Technology (MIT), he left a lucrative career in corporate consulting to return to his native Hawai’i to find answers in poetry. He’ll share some of his unique insights on Tuesday, November 13 as part of the GCSC seminar series, and then again on Friday, November 16, with his highly acclaimed “The Story of Everything,” hosted by UtahPresents and supported by the Sustainability Office.
For his GCSC seminar, “So many different crossroads, but the paths look the same,” Kealoha will explore the threat posed by climate change by pulling questions from science and the arts. Similar themes will come up on Friday in “The Story of Everything,” an ambitious performance combining poetry, dance, music, art and science. Drawing on everything from the Big Bang Theory to Michael Jackson, Kealoha will show how interconnected our world really is.
These questions have always been a part of Kealoha’s life. Growing up, Kealoha kept his academic interest hidden and pursued arts and sports. But his incredible aptitude for science and mathematics -including a perfect SAT math score – led him to study Nuclear Engineering at MIT. During his education he worked as an intern at MIT’s Plasma Science and Fusion Center as well as the Los Alamos National Laboratory in New Mexico. Yet he realized quickly that nuclear energy was more plagued by political funding issues than any other obstacle and changed his course, working with the Institute for Defense Analysis (IDA) in Washington, D.C. where he published work on national security and climate change.
After graduating with honors and a minor in writing, he changed his direction yet again and began a career in management consulting in San Francisco. Yet the long hours and focus on building wealth left him feeling unfulfilled, and after a fortuitous encounter with slam poetry he immersed himself in writing. Back in his native Hawai’I, he dove into the local slam poetry scene, and went on to establish Youth Speaks Hawai’i, which holds poetry workshops for Hawaiian youth with internationally renowned poets. With poetry rooted in community and education, Kealoha regularly performs at schools and towns not just around Hawai’i but across the world.
With his scientific training and poetic genius, Kealoha may just provide the inspiration we need for rethinking how we live and who we are. Come to his GCSC seminar today, Tuesday, Nov. 13, in ASB 210 from 4 – 5 PM and his performance of “The Story of Everything” in Kingsbury Hall on Friday Nov. 16 at 7:30 PM to get inspired.
What if you could see nasty microscopic air pollutants in your home?
Engineers from the University of Utah’s School of Computing conducted a study to determine if homeowners change the way they live if they could visualize the air quality in their house. It turns out, their behavior changes a lot.
Their study was published this month in the Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies. The paper was also presented Oct. 9 in Singapore during the “ACM International Joint Conference on Pervasive and Ubiquitous Computing.” The paper can be viewed and downloaded here.
“The idea behind this study was to help people understand something about this invisible air quality in their home,” says University of Utah School of Computing assistant professor Jason Wiese, who was a lead author of the paper along with U School of Computing doctoral student Jimmy Moore and School of Computing associate professor Miriah Meyer.
During the day, the air pollution inside your home can be worse than outside due to activities such as vacuuming, cooking, dusting or running the clothes dryer. The results can cause health problems, especially for the young and elderly with asthma.
University of Utah engineers from both the School of Computing and the Department of Electrical and Computer Engineering built a series of portable air quality monitors with Wi-Fi and connected them to a university server. Three sensors were placed in each of six homes in Salt Lake and Utah counties from four to 11 months in 2017 and 2018. Two were placed in different, high-traffic areas of the house such as the kitchen or a bedroom and one outside on or near the porch. Each minute, each sensor automatically measured the air for PM 2.5 (a measurement of tiny particles or droplets in the air that are 2.5 microns or less in width) and sent the data to the server. The data could then be viewed by the homeowner on an Amazon tablet that displayed the air pollution measurements in each room as a line graph over a 24-hour period. Participants in the study could see up to 30 days of air pollution data. To help identify when there might be spikes in the air pollution, homeowners were given a voice-activated Google Home speaker so they could tell the server to label a particular moment in time when the air quality was being measured, such as when a person was cooking or vacuuming. Participants also were sent an SMS text message warning them whenever the indoor air quality changed rapidly.
During the study, researchers discovered some interesting trends from their system of sensors, which they called MAAV (Measure Air quality, Annotate data streams and Visualize real-time PM2.5 levels). One homeowner discovered that the air pollution in her home spiked when she cooked with olive oil. So that motivated her to find other oils that produced less smoke at the same cooking temperature.
Another homeowner would vacuum and clean the house just before a friend with allergies dropped by, to try to clean the air of dust. But what she found out through the MAAV system is that she actually made the air much worse because she kicked up more pollutants with her vacuuming and dusting. Realizing this, she started cleaning the house much earlier before the friend would visit.
Participants would open windows more when the air was bad or compare measurements between rooms and avoid those rooms with more pollution.
“Without this kind of system, you have no idea about how bad the air is in your home,” Wiese says. “There are a whole range of things you can’t see and can’t detect. That means you have to collect the data with the sensor and show it to the individual in an accessible, useful way.”
Researchers also learned that circumstances that made the air pollution worse differed in each home. Vacuuming in the home, for example, would have different effects on the air quality. They also learned that if homeowners could visualize the air quality in their home, they always stayed on top of labeling and looking at the data.
Wiese says no known manufacturers make air quality systems for the home that allow residents to visualize and label the air quality in this way, but he hopes their research can spur more innovation.
The study involved engineering in collaboration with other University of Utah scientists, including biomedical informatics and clinical asthma researchers. It was funded as part of a larger National Institutes of Health program known as Pediatric Research using Integrated Sensor Monitoring Systems (PRISMS), launched in 2015 to develop sensor-based health monitoring systems for measuring environmental, physiological and behavioral factors in pediatric studies of asthma and other chronic diseases.
Research reported in this publication was funded by the National Institute of Biomedical Imaging and Bioengineering of the National Institutes of Health under Award Number U54EB021973. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
By Abby Ghent
Ah, football. The smell of barbecued foods, the sound of cheering fans, and the excitement of watching your home team playing their hearts out. The only thing missing is a little bit of sustainability thrown in. But you can change that: Join in the 1st Annual Green to Red Tailgate Challenge!
At the Oct. 12 home game vs. Arizona, join your fellow fans in a little friendly competition to bring some green into your red-out tailgating. The Green to Red Tailgating Challenge offers a contest to make your tailgate as sustainable as possible. Wear red and be green during the U’s first Green to Red Tailgate Challenge. All tailgates are automatically entered. Winners will be chosen by student sustainability leaders based on how sustainable their tailgate team can be in the areas of waste and recycling, transportation, energy, food purchases, and innovation. Here are some ideas:
- Ditch the disposables. Bring reusable cups, dishes, and cutlery. Stay hydrated with reusable jugs of water.
- Don’t go Solo! Those iconic red cups are a low-quality plastic. If you need plastic cups, look for clear cups that are plastic #1.
- Separate your recyclables. Keep two bins—one for trash and one for recycling. Make sure to avoid food and liquid in the recycling bin.
- Go local. You can get all your tailgating needs—including BBQ, brats, grass-fed beef, and of course, beer! (21+)—from Utah companies.
- More than cars. Points for people in the group that biked, carpooled, or used public transportation.
- Reuse your U decor. You wouldn’t throw out your favorite University of Utah t-shirt! Show your team spirit with U decorations you can use game after game.
And the prizes, you ask?
1st Place: On-field experience at your choice of 2018 football game and dinner in the Tower for four people; recognition of your tailgate team on the video board at the chosen game
2nd Place: Tour of Spence and Cleone Eccles Football Center and lunch in the cafeteria for four people
3rd Place: Four tickets to any 2018/19 U sports event of fans’ choosing
The competition is part of a larger effort by the Pac-12 Conference to be leaders in both championships and sustainability. The Pac-12 Team Green, a first-of-its-kind in collegiate athletics, promotes sustainability initiatives taking place around the Pac-12 Conference and all 12 of its member universities. Learn more at www.pac-12.com/team-green.
By Vince Horiuchi, public relations associate, College of Engineering
Air conditioning and heating systems are not only great for keeping a home cool or warm, but they also help clean the air of harmful pollutants.
While home thermostats control HVAC (heating, ventilation, and air conditioning) systems based on temperature, engineers from the University of Utah have studied the effects of controlling them based on a home’s indoor air quality. They have discovered that programming your air conditioner and furnace to turn on and off based on the indoor air quality as well as the temperature doesn’t waste a lot of additional energy but keeps the air much cleaner.
Their findings, published in a paper titled Smart Home Air Filtering System: A Randomized Controlled Trial for Performance Evaluation, were presented on Sept. 26 at this year’s “IEEE/ACM Conference on Connected Health: Applications, Systems and Engineering Technologies” in Washington D.C. The lead authors of the paper are University of Utah electrical and computer engineering professor Neal Patwari and U electrical and computer engineering doctoral graduate, Kyeong T. Min.
The researchers, led by Patwari, purchased a series of off-the-shelf portable air pollution sensors and connected them wirelessly to Raspberry Pis, small and inexpensive computers for hobbyists. With specialized software developed by the engineers, the computers were programmed to automatically turn on the air conditioning system whenever the particulate matter in the air reached a certain point and turn off the system when the particulate matter dipped below a certain measurement.
For the study, 12 sensors were deployed in four homes in 2017. In each house, two of the sensors were inside rooms, and one was placed outside under a covered porch. Starting at midnight each night, each home would randomly operate the sensors under one of three conditions: “Normal,” in which the HVAC systems turned on and off normally based on temperature only; “Always On,” in which the air system operated continuously all day, and; “SmartAir,” in which the system turned on and off the HVAC fan based on the pollution measurement in the house as well as the thermostat’s temperature setting.
Based on five months of data, the study revealed that operating with the “SmartAir” setting in which it turned on and off based on temperature and air quality cleaned the air almost as well as if the HVAC fan was operating all day, but it used 58 percent less energy. Meanwhile, when the heating and cooling system operates normally without regards to the air quality, the air was 31 percent dirtier than with the “SmartAir” setting.
“For someone with asthma, an exacerbation can be triggered by poor air in the home, particularly for children,” Patwari says. “This kind of monitoring system could allow them to live more comfortably and with fewer asthma symptoms and fewer trips to the emergency room.”
Because of ordinary activities in the home such as cooking, vacuuming and running the clothes dryer, air quality inside a home can at certain times of the day be much worse than outside. Constant exposure to indoor air pollutants can lead to short-term health effects such as irritation of the eyes, nose, and throat, as well as headaches, dizziness, and fatigue, according to the United States Environmental Protection Agency. Long-term exposure could also lead to respiratory diseases, heart disease and cancer and could be fatal for some. Yet there are no known home or commercial HVAC systems that are controlled by air quality sensors.
Patwari’s study involves engineering in collaboration with other University of Utah scientists, including biomedical informatics and clinical asthma researchers. It was funded as part a larger National Institutes of Health program known as Pediatric Research using Integrated Sensor Monitoring Systems (PRISMS), launched in 2015 to develop sensor-based health monitoring systems for measuring environmental, physiological and behavioral factors in pediatric studies of asthma and other chronic diseases.
Research reported in this publication was funded by the National Institute of Biomedical Imaging and Bioengineering of the National Institutes of Health under Award Number U54EB021973. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
Originally published in Continuum on September 17, 2018.
Jessica Kemper, coordinator of the U’s Edible Campus Gardens, shows off produce from this season’s abundant harvest at their garden east of Pioneer Memorial Theatre. Kemper helps organize more than 75 student volunteers, who work shifts year round composting, trellising, weeding, planting, and harvesting at both the Pioneer Garden and their plot by the Sill Center. Come fall, there is enough produce to donate to the Feed U Pantry, share with volunteers, and sell at the U’s Farmers Market, which takes place Thursdays just west of the Union Building from mid-August to early October.