Indoor Air Quality: 🚌 Back-to-School Edition: Go Idle-Free to Breathe Cleaner Air 🚗


September is Idle Free Awareness Month! As the temperatures start to cool, and inversion season approaches, we wanted to share some information about vehicle emissions from idling and its impacts on indoor air quality.

Every morning, cars idle in driveways, streets, and school zones. Exhaust drifts indoors—triggering asthma, worsening allergies, and affecting everyone in your home and community.

Vehicle exhaust makes up about 50% of the air pollution in Utah during a typical winter day, and unnecessary idling of cars and buses contribute a significant amount of emissions released into the air each day. That’s why we encourage drivers to “Turn Your Key, Be Idle Free”! 

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Turning Up the Heat – Adapting to Hotter Temps Across SLC

As the summer heat continues, it’s important to understand how to deal with extreme temperatures and why they are becoming more frequent every year. We have seen Salt Lake County’s average summer temperature increase by 3.9° F since 1985, while the U.S. average has increased by 1.5°F. 

What is the Urban Heat Island Effect? 

Have you ever noticed how the city feels much hotter than surrounding areas? That feeling is thanks to the urban heat island effect. The heat island effect is a phenomenon that leads to higher temperatures in urban areas compared to rural areas. This temperature difference is due to the greater presence of heat-absorbing surfaces, like large buildings and pavement, and not as much vegetation and green space in a city. The high density of buildings within cities also makes it harder for temperatures to decrease at nighttime. 

How is Heat Distributed in SLC?

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Indoor Air Quality: Protecting Your Indoor Air During Wildfire Season

Wildfire season is here — and even if the flames are far away, the smoke can travel hundreds of miles and leak indoors. Smoke contains fine particles that can harm your lungs, worsen asthma, and make the air inside unhealthy to breathe — even when you can’t see it.

With your portable air purifier and a few simple steps, you can keep your home’s air cleaner and safer all season long.

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Indoor Air Quality: Cooking and Indoor Air Quality

Cooking brings flavor—but also hidden air pollution. Whether you use gas or electric, how you cook impacts the air your family breathes. Even brief cooking sessions can spread pollutants throughout your home (not just the kitchen). But simple changes can greatly enhance your indoor air quality!

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Press Release: Salt Lake City supports community-led organizations to increase healthy food access

The New American Goat Club was a 2023, 2024, and 2025 community organization recipient. Photo credit: Ashley Detrick/Salt Lake City Mayor’s Office

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June 26, 2025

Para leer este comunicado de prensa en español, oprima aqui

Salt Lake City continues to increase residents’ access to fresh, healthy, affordable, and culturally relevant food by funding 12 community food projects through the Sustainability Department’s 2025 SLC Food Microgrant program. 

This year, over $56,500 in funding was granted to community-led projects aligned with recommendations from the City’s Resident Food Equity Advisors Program.  

“We often talk about building a more resilient Salt Lake City, and this is one way we’re doing it—by supporting neighbors and community groups who grow food, share knowledge, and improve access to locally sourced, culturally meaningful foods,” said Mayor Mendenhall. “These microgrants are small investments with big returns for our health, our environment, and our connection to one another.” 

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Help Us Celebrate National Waste & Recycling Workers Week!

Help Us Celebrate National Waste & Recycling Workers Week!

June 16-24th marks this year’s Waste and Recycling Workers Week! These essential workers keep Salt Lake City clean and sustainable, rain or shine (even through the pandemic, earthquake, and wind storm!) every weekday of the year except for Thanksgiving, Christmas and New Year’s Day.

Our Waste & Recycling Division does some of the most time-sensitive, important work in the entire city! There’s all kinds of things you probably didn’t know about this crucial City division, such as:

  • Salt Lake City services more than 42,000 households, emptying garbage, recycling and compost bins every week.

  • Each daily collection driver empties between 600 to 900 bins — about 20,000 pounds — of waste, compost, or recycling EVERY DAY! Can you imagine what the city would look like if they weren’t on the job?

  • Next time you’re at an event like the Pride parade or the Utah Arts Festival (happening this weekend by the way!), please think about our team’s hard work to keep those events clean and running smoothly — and give them a thanks if you see them! 👋🏽 In 2024, Salt Lake City Waste & Recycling serviced more than 4,000 garbage and recycling containers used at 105 special events!
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Indoor Air Quality: Staying Asthma (and Allergy) Aware

If you’re not affected by asthma, it’s likely that you have a friend or family member who is. While asthma severity and triggers may differ, there are common indoor culprits that can be helpful to identify and address. Read our guide below to learn how to improve your indoor air quality and make smarter choices around asthma (and allergy) triggers!

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Happy Earth Month from SLCgreen! 🌏

Salt Lake City is committed to protecting the public health and safety of its residents, including ensuring access to clean air, clean water and a livable environment. 🌏 This Earth Month, take some time to learn about how we’re working toward our Climate Positive 2040 Plan and tips you can start with today to make positive change in your life, community, and for a healthier planet.

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Community Electrified Transportation Study ⚡

New Report Out! âšˇđźš— đźšš

We are excited to share Salt Lake City’s recently completed Community Electrified Transportation Study. The City initiated the study in 2023 and it was completed in January 2025 as a tool to inform an equitable transition to electrified transportation as part of our larger climate and air quality goals. 

Why electric vehicles?

Salt Lake City faces significant and unique air quality challenges. In the winter, the Wasatch Front’s geography leads to periodic temperature inversions (cold air getting trapped underneath a layer of warm air) which acts like a “lid” on the Salt Lake Valley—causing particulate pollution to increase. In the summer, pollution from cars, industry, and a multitude of chemical products, combined with high temperatures and bright sunshine, lead to harmful ozone levels.

About 39% of pollution along the Wasatch Front comes from internal combustion engine vehicles. Transitioning the transportation sector to clean energy technologies, including electric vehicles (EVs), will provide a range of benefits including improved air quality, reduced carbon emissions, and enhanced public health.

It’s not just about EV’s though.

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