What the air quality situation is in Citrus Heights

Citrus Heights, in Sacramento County, sits in the Sacramento Valley — one of California's most polluted air basins. The region fails to meet federal ozone standards most years, meaning smog concentrations regularly exceed what the Environmental Protection Agency considers safe. The problem is worst in summer and early fall, when heat and stagnant air trap pollutants near the ground.

The Sacramento Valley's geography makes the problem worse. Mountains to the west and north trap air that moves in from the coast, and the valley's heat creates conditions that turn vehicle exhaust and industrial emissions into ground-level ozone. Citrus Heights, sitting directly in this basin, experiences the same pollution as the rest of the region — there is no local variation that makes one part of the city cleaner than another.

The state and federal government have been trying to improve air quality here for decades. Progress has been slow. Current forecasts suggest the Sacramento Valley will not meet federal ozone standards until sometime in the 2030s, if current trends hold.

Key Takeaways

  • Citrus Heights is in the Sacramento Valley air basin, which regularly exceeds federal ozone limits, especially from May through October.
  • You can check the current air quality index for your area on AirNow.gov or the California Air Resources Board website before outdoor activities.
  • The Sacramento Metropolitan Air Quality Management District regulates emissions in the region and publishes forecasts and health advisories.
  • People with asthma, heart disease, or respiratory conditions should reduce outdoor time when the Air Quality Index reaches 101 or higher.

How to check air quality before you go outside

The Air Quality Index (AQI) is the standard measure used across the United States. It runs from 0 to 500, with higher numbers meaning worse air. The EPA's AirNow.gov website shows the current AQI for Citrus Heights and breaks it into categories: green (good), yellow (moderate), orange (unhealthy for sensitive groups), red (unhealthy), purple (very unhealthy), and maroon (hazardous).

The California Air Resources Board (CARB) also publishes forecasts and current conditions at AirNow.gov and through its own website. Both sources update hourly. If you have a smartphone, the AirNow app shows your location's AQI without needing to type in a zip code. Many weather apps include AQI data as well.

When the AQI reaches orange (101–150), people with asthma, heart disease, or chronic lung disease should limit outdoor time. At red (151–200), the general population should also reduce outdoor activity. Above that, most people should stay indoors.

Who regulates air quality in Citrus Heights

The Sacramento Metropolitan Air Quality Management District (SMAQMD) is the local agency responsible for air quality in Citrus Heights and surrounding areas. It sets rules on emissions from vehicles, businesses, construction, and other sources. It also issues health advisories when pollution is forecast to be high.

SMAQMD publishes a daily air quality forecast on its website (smaqmd.org) and sends alerts through email and text if you sign up. The district also tracks long-term trends and works with the state and federal government on plans to reduce pollution over time.

The California Air Resources Board oversees SMAQMD and sets statewide standards. The EPA enforces federal Clean Air Act requirements. If you want to report a source of pollution — a business burning waste, a vehicle with a broken muffler, dust from construction — you can file a complaint with SMAQMD.

Health effects of smog and who is most at risk

Ground-level ozone (the main component of smog) irritates the lungs and airways. Short-term exposure can cause coughing, throat irritation, and difficulty breathing, even in healthy people. Repeated exposure over time can reduce lung function and increase the risk of respiratory disease.

People with asthma, emphysema, chronic bronchitis, or other lung disease are hit hardest. Children whose lungs are still developing are also more vulnerable. Older adults and people with heart disease face increased risk of heart attacks and strokes on high-pollution days. Outdoor workers — construction crews, landscapers, mail carriers — get longer exposure and face higher risk than office workers.

Pregnant women and their developing babies may also be affected by poor air quality, though research is still ongoing. If you fall into any of these groups, checking the AQI before outdoor activity is important, and staying indoors on red or purple days is a reasonable precaution.

What Sacramento Valley air quality trends show

The Sacramento Valley has made progress since the 1970s, when smog was far worse. Peak ozone concentrations have declined. However, the region still fails federal standards most years. In recent years, the valley has had between 40 and 80 days per year when the AQI reached unhealthy levels — the exact number varies by year and by how you measure it.

Wildfire smoke has made the picture more complicated. In years with large fires upwind — particularly in the Sierra Nevada or northern California — smoke drifts into the valley and pushes air quality to hazardous levels for days or weeks. This happened notably in 2020 and 2021. Climate change is expected to increase wildfire frequency, which could offset progress from emissions reductions.

The state's plan to meet federal standards relies on vehicle electrification, stricter industrial rules, and agricultural dust control. Progress depends on how quickly these changes happen. Current projections suggest the valley will reach compliance sometime between 2032 and 2040, though that timeline can shift.

Steps you can take to reduce your exposure

On days when the AQI is orange or higher, limit outdoor time, especially strenuous activity. Exercise indoors or wait until the air clears. If you must go outside, a properly fitted N95 mask can reduce the amount of ozone and particles you breathe, though it does not eliminate exposure.

Keep windows closed on high-pollution days, and use your car's recirculation mode (the button that closes the outside air intake) when driving. If you have a home air filter, run it on high. HEPA filters and portable air purifiers can help in a single room, though they do not clean the entire house.

Longer-term, reducing vehicle trips — carpooling, using transit, biking, or working from home when possible — cuts emissions that create smog. Avoiding leaf blowers and gas-powered yard equipment on high-pollution days also helps, since these emit significant pollutants.

Frequently Asked Questions

Is Citrus Heights worse than other parts of Sacramento County?

No. The entire Sacramento Valley air basin, including Citrus Heights, experiences the same regional pollution. Smog does not stop at city boundaries. Your specific location within Citrus Heights will not be noticeably cleaner or dirtier than anywhere else in the county.

What does an AQI of 150 mean for my health?

An AQI of 150 is in the red category (unhealthy). People with respiratory or heart conditions should avoid outdoor activity. The general population should also limit time outside and strenuous exercise. Most people can tolerate brief outdoor time, but prolonged exposure increases risk of symptoms.

Can I get a refund on my rent or property taxes because of air pollution?

No. Air quality is not a legal basis for rent reduction or property tax relief in California. If you believe air pollution from a specific source (a business, a facility) is harming your health, you can file a complaint with SMAQMD or consult a lawyer about nuisance claims, but these are separate from housing or tax issues.

Will moving to a different neighborhood in Citrus Heights improve my air quality?

Not significantly. Smog is a regional problem. All neighborhoods in Citrus Heights and the Sacramento Valley experience similar pollution levels. If air quality is a major health concern, moving outside the valley (to the coast or mountains) would make a difference, but moving within the valley will not.

How do I report a business or vehicle that is polluting?

Contact the Sacramento Metropolitan Air Quality Management District at (916) 874-4800 or through its website (smaqmd.org). Have details ready: the location, what you observed, the date and time, and any business name or vehicle information. SMAQMD investigates complaints and can issue citations if violations are found.