AQI: Moderate

AQI Range: 51 — 100

What It Means

Air quality is acceptable. However, there may be a risk for some people who are unusually sensitive to air pollution.

Health Impact

Unusually sensitive individuals may experience respiratory symptoms.

Recommended Actions

Active children and adults, and people with respiratory disease should limit prolonged outdoor exertion.

Cities with Moderate Average AQI (129)

San DiegoAQI 52 San AntonioAQI 52 Corpus ChristiAQI 52 PlanoAQI 52 AllentownAQI 52 AuroraAQI 52 ColumbusAQI 52 ToledoAQI 52 DaytonAQI 52 CharlotteAQI 52 TrentonAQI 52 ChattanoogaAQI 52 RenoAQI 52 AlbuquerqueAQI 52 TulsaAQI 52 WilmingtonAQI 52 Washington DCAQI 52 BoiseAQI 52 FairbanksAQI 52 CharlestonAQI 52 WaukeganAQI 52 KennewickAQI 52 LakewoodAQI 52 PuebloAQI 52 ConcordAQI 52 Terre HauteAQI 52 SparksAQI 52 YonkersAQI 54 ReadingAQI 54 JolietAQI 54 AkronAQI 54 FlintAQI 54 Jersey CityAQI 54 PatersonAQI 54 KnoxvilleAQI 54 NampaAQI 54 HobokenAQI 54 IrvingAQI 54 ThorntonAQI 54 San JoseAQI 55 IrvineAQI 55 LaredoAQI 55 MidlandAQI 55 New York CityAQI 55 CincinnatiAQI 55 NashvilleAQI 55 MemphisAQI 55 IndianapolisAQI 55 EvansvilleAQI 55 New OrleansAQI 55 MedfordAQI 55 LouisvilleAQI 55 MissoulaAQI 55 HuntingtonAQI 55 PortlandAQI 55 GarlandAQI 55 ArlingtonAQI 56 AuroraAQI 56 GonzalesAQI 56 DallasAQI 58 Fort WorthAQI 58 PhiladelphiaAQI 58 ChicagoAQI 58 ClevelandAQI 58 AtlantaAQI 58 NewarkAQI 58 YakimaAQI 58 TucsonAQI 58 DenverAQI 58 St. LouisAQI 58 Baton RougeAQI 58 BaltimoreAQI 58 RosevilleAQI 58 ChicoAQI 58 Simi ValleyAQI 58 Lake CharlesAQI 60 BirminghamAQI 60 HendersonAQI 60 North Las VegasAQI 60 Elk GroveAQI 60 SacramentoAQI 62 BeaumontAQI 62 PittsburghAQI 62 DetroitAQI 62 ScottsdaleAQI 62 Las VegasAQI 62 PalmdaleAQI 62 LancasterAQI 62 SurpriseAQI 64 ReddingAQI 65 El PasoAQI 65 ChandlerAQI 65 GaryAQI 65 ProvoAQI 65 GilbertAQI 65 VictorvilleAQI 65 OgdenAQI 66 TempeAQI 66 PeoriaAQI 66 HoustonAQI 68 MesaAQI 68 Salt Lake CityAQI 68 GlendaleAQI 68 PasadenaAQI 68 Santa ClaritaAQI 70 YumaAQI 70 Long BeachAQI 72 PhoenixAQI 72 El MonteAQI 72 Rancho CucamongaAQI 76 CoronaAQI 76 Los AngelesAQI 78 PomonaAQI 78 OntarioAQI 78 ModestoAQI 80 Moreno ValleyAQI 80 LodiAQI 80 StocktonAQI 82 FontanaAQI 82 San BernardinoAQI 82 TurlockAQI 82 MercedAQI 84 ClovisAQI 85 MaderaAQI 86 RiversideAQI 88 HanfordAQI 88 FresnoAQI 89 VisaliaAQI 90 BakersfieldAQI 95

Frequently Asked Questions

Should I be concerned about Moderate AQI?

For most people, Moderate AQI (51-100) poses little risk. However, unusually sensitive individuals — those with severe asthma or respiratory conditions — may experience mild symptoms and should consider reducing prolonged outdoor exertion.

Can children play outside during Moderate AQI?

Yes, most children can safely play outside during Moderate AQI conditions. However, children with asthma or other respiratory conditions should carry their medications and take breaks if they experience symptoms.

What causes AQI to reach Moderate levels?

Moderate AQI is often caused by vehicle traffic emissions, industrial activity, or natural sources like pollen and dust. Hot sunny days can increase ozone formation, pushing AQI from Good into Moderate range.

Is Moderate AQI common in US cities?

Yes, Moderate AQI is very common and represents the typical air quality in most mid-size and large US cities. Many cities experience Moderate conditions for 30-50% of the year.

What is the difference between Good and Moderate AQI?

The key difference is that at Moderate levels (51-100), some unusually sensitive people may notice mild respiratory effects. At Good levels (0-50), virtually no one experiences any effects. The practical impact for healthy individuals is minimal.

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