Earlier this month, Salt Lake City Mayor Erin Mendenhall and the Sustainability Department held an Indoor Air Quality Summit, bringing together city officials, academic researchers, building managers, and interested organizations to discuss the current status of indoor air quality, as well as possible initiatives and solutions that could be taken to help create a healthier environment both inside and out.
Speakers included Salt Lake City Mayor Erin Mendenhall; Daniel Mendoza, Research Assistant Professor at the University of Utah; and Nicholas Rice, the Corporate Industrial Hygiene Manager at Intermountain Health, with SLCgreen’s own Peter Nelson hosting.
While outdoor air pollution is a recurring topic in Salt Lake City discussions, indoor air pollution has become more significant as the correlation between outdoor and indoor air quality are researched. In her opening remarks, Mayor Mendenhall explains, “We know that buildings and homes are a critical space for indoor and outdoor air quality because our buildings produce a significant portion of the air we breathe outside.”
November marks the beginning of inversion season in the Salt Lake Valley. This is the time of year when pollutants including PM 2.5 get trapped in the valley, obscuring the mountains and posing dangerous health risks to our communities.
Protecting our airshed and reducing pollution wouldn’t be possible without the collective actions of everyone coming in and out of Salt Lake City. While transportation contributes a significant portion of the local air pollution, other factors including building efficiency and home energy use can also contribute to pollution. Studies have shown that air pollution disproportionately affects communities of color, partially as a result of source location and historical redlining of neighborhoods. Air quality continues to be a major equity concern for Salt Lake City, where proximity to major highways, industrial areas, and fewer trees make some parts of Salt Lake City more polluted than others. By addressing air pollution’s many sources, Salt Lake City can help improve air quality.
Keep reading to find out more about what you can do to help everyone breathe a little easier!
In the months following our collective action to flatten the curve of COVID-19 cases, the air quality improved around the globe. According to University of Utah research, particulate matter pollution in Salt Lake City was reduced 59% as of May 6.
Although Salt Lake City is maintaining an “orange” status for our COVID-19 response, there has been an uptick in cases across Utah. In a city in which public health is harmed by poor air quality, any virus that affects the respiratory system is cause for concern. However, with the knowledge that stay at home orders temporarily reduced our local air pollution, we can learn more about possible ways of improving air quality in the future.
Let’s take a closer look at the ways air quality and COVID-19 interact – and some ways you can help protect the air and each other.
Are you ready for a new challenge? How about one that will help you save money, burn calories, and improve our air quality? Salt Lake City employees are already on board and want to invite you to join the 2020 Clear the Air Challenge. During the month of February, keep our air clear of pollutants by limiting your driving!
You can aim to reduce your “driving-alone” trips every day in February, or pick a goal that’s manageable for you. It all helps!
Since 2009, Utahns have been participating in the month-long Clear the Air Challenge. During February, when air quality in Utah is historically bad, participants track their trips with the goal of avoiding single-occupancy vehicle travel and reducing air pollution. Participantscarpool, bike, walk, telecommute, trip chain, take public transit, drive electric vehicles, and ride electric bikes or scooters– all to help clear the air!
In 2019, participants in the Clear the Air Challenge eliminated 84,421 single-occupancy vehicle trips. This saved 1,244,624 miles of traveling and $0.4 Million! Together, all these efforts reduced 359.8 tons of CO2!
This year, the Clear the Air Challenge needs everyone’s help to reach the goal of eliminating 100,000 single-occupant trips.
Clear the Air to Protect Our Health
Winters in Utah can be beautiful, but when inversion starts, polluted air gets caught in our valleys. PM 2.5 and other pollutants threaten our health the well-being of our communities.
On bad air days, our activity is limited. Moreover, children, older adults, and people with heart diseases or respiratory problems are at a higher risk for suffering from poorer health due to bad air. Poor air quality is associated with a range of negative impacts including pregnancy loss, premature death, child asthma, and increased cases of pneumonia.
In Salt Lake City, nearly 50% of air pollution comes from cars, trucks, and other vehicles. That’s why the Clear the Air Challenge is more important than ever.
Each participating department has its own team. Salt Lake City employees live all over the Wasatch Front. Many of us take public transit to work every day. Others carpool or bike. For the month of February, we’re doing all we can to cut back on our single occupancy car rides!
Thanks to the recent public transit expansions, the robust network of bike paths for the sunny days, as well as the Clear the Air Challenge app’s handy carpool guide, the Clear the Air Challenge will make February an exciting and competitive month!
With a week of air that has been some of the worst in the country, it’s no wonder we’re all feeling frustrated. Salt Lake City’s current air quality is unhealthy for sensitive groups and requires mandatory action of limited driving and no wood burning. For most of us, Salt Lake City’s notoriously bad air is a nuisance and health concern, limiting our activities and turning our skyline grey. Moreover, pollutants like PM 2.5 are dangerous, especially for older residents, children, pregnant women, and people with respiratory and cardiovascular conditions. Air quality is a public health concern, as well as an economic one.
It may come as a surprise that although transportation currently contributes nearly half of the emissions causing Salt Lake City’s bad air, buildings are catching up. Indeed, houses and buildings currently contribute roughly 38% of emissions, and industry point sources produce the other 13%. As emissions standards on cars are becoming more strict, managing emissions from houses and buildings is a growing priority.
PM 2.5 is the primary winter concern in Salt Lake City’s airshed. The particulate matter poses serious health risks and gets trapped in the Salt Lake valley during inversion. Most of the PM 2.5 is a direct result of precursor emissions from tailpipes, smokestacks, and chemicals that mix to form PM 2.5 in the atmosphere.
When you look outside, it may feel like there’s no good news. However, per capita pollution in Utah is decreasing. Salt Lake City is taking steps to help clean the air and protect our public health and environment. Find out how you can keep our airshed (and lungs!) clean and healthy.
What is SLC doing?
Reducing combustion and emissions are a key step towards cleaning the air.
Salt Lake City has many air quality initiatives in place that are helping clean the air. Among these include the continued expansion of EV infrastructure, expanding cleaner vehicles in our fleet, and implementing our energy benchmarking ordinance for nearly 1,000 commercial buildings. Additionally, the HIVE pass provides residents with access to UTA’s public transit system at a reduced cost.
This week’s Clean Air Champion tip is about wood burning.
Even though burning wood is festive at this time of year, it’s a significant polluter (estimated to contribute 5-26% of total pollution on a winter day, according to a presentation from Dr. Kelly Kerry to UCAIR).
Before you burn, make sure to check to see if it’s a no burn day.
The Salt Lake County Health Department prohibits burning solid fuel in fireplaces or wood burning stoves and bans outdoor fires (including bonfires, patiopits, and charcoal grill fires) on days that the State of Utah designates as either mandatory or voluntary air action (no burn) days.
During the winter, when high pressure rolls in, pollution builds up.
Specifically pollution called PM2.5 which are tiny particles that actually obscure our view of the mountains and even of neighboring buildings on bad days.
The Division of Air Quality operates monitors at several locations across the Wasatch Front, but pollution concentrations can vary depending on where exactly you’re located. Contributing factors include:
Do you live next to a road?
Do you have a neighbor who frequently fires up their meat smoker or burns wood?
Is there a nearby restaurant or small business that releases precursor pollutants?
On top of all those factors– what is happening with the particular mix of geography and weather at your location?
Air quality science is complex.
But gaining a better understanding of pollution nuances across the valley can help policy makers make better decisions, and can help residents better protect themselves.Read more