Maricopa County Public Health

Maricopa County Public Health serves over 4 million residents.
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Español: @saludmaricopa

[Maricopa Air @MaricopaAir]

Friday, August 7: A High Pollution Advisory for Ozone and PM10 [dust] has been issued for Maricopa County. Wood burning restrictions are in effect, the use of leaf blowers and off-road vehicles should be avoided. Download the FREE Clean Air app for daily air quality updates.

[Maricopa County Public Health @Maricopahealth]

⚠️ An Extreme Heat warning is in effect through Sunday, August 9.

Please stay indoors with air conditioning as much as possible, stay hydrated, and check on others. Visit https://t.co/Xozf2CbOxN for heat relief sites and resources to cool down.

[Maricopa Air @MaricopaAir]

A PM10 [Dust] and PM2.5 [Smoke] High Pollution Advisory has been issued for Thursday, August 6. Wood burning is prohibited. Learn about cleaner fuel-burning options and ways you can help reduce air pollution at https://t.co/m4ZJRuOTHe.

[Maricopa County Public Health @Maricopahealth]

⚠️ Extreme Heat warning extended through Monday, Aug. 3

Yes, we all know it's hot here, but even seasoned residents fall victim to heat illness if not careful. We can all take steps to stay safe. Stay hydrated, stay indoors with a/c, and check on others.

https://t.co/Xozf2CbOxN

[Arizona Department of Environmental Quality @ArizonaDEQ]

ADEQ is issuing a High Pollution Advisory (HPA) ozone effective July 30, 2026, in Phoenix.

Hourly forecast ➡️ https://t.co/WSudaISDJd

#Ozone pollution explained ➡️ https://t.co/OJ1p0RjlCX

#AZAirAware #azwx

[NWS Phoenix @NWSPhoenix]

Extreme Heat Warnings remain in effect for the bulk of the area through this evening and for Phoenix, Yuma, and El Centro currently through Wednesday. Confidence is also increasing in even hotter temperatures later this week. #azwx #cawx

[Maricopa County Public Health @Maricopahealth]

⚠️ Extreme Heat Warning through Monday
Several days of dangerous heat with very warm nights can be especially hazardous. When temps stay high overnight, your body has less time to recover from the day's heat.

If you need a cool place to go, call 2-1-1 or https://t.co/Bdva4kfGR0.

[Maricopa County Public Health @Maricopahealth]

📢 Grant applications opening soon!

The D.R.E.A.M.S. Grant is returning. Maricopa County schools may be eligible to receive up to $5,000 to support student resilience initiatives.

Want to be notified when applications are available? Sign up for updates:
https://t.co/TisDqt7iIR

[Maricopa County Public Health @Maricopahealth]

📚💉As we get ready to start the school year, check your child’s vaccination records.

Routine shots for school are available at our Maricopa County clinics or at community events.

Visit https://t.co/uutvWdIUp8 to learn more and schedule.

[Maricopa County Public Health @Maricopahealth]

Free back-to-school vaccines will be available Tuesday, July 28, from 1 to 4:30 pm at the Murphy Elementary School District Office (3140 W. Buckeye Rd., Phoenix, AZ 85009).

No appointment is needed. Families without insurance are welcome.

More details: https://t.co/DolYyY4s1K

[Maricopa County Public Health @Maricopahealth]

🌧️After it rains, check your yard for standing water and dump it out! Mosquitoes lay their eggs in untreated water, and they can carry serious diseases like West Nile virus.

Remember to TIP and TOSS to say BYE mosquitoes!

Learn and protect yourself: https://t.co/vPOkZAuys4

[Maricopa County Public Health @Maricopahealth]

Know a college student ready to explore a career in public health?
Our Fall 2026 internships offer real-world experience and the chance to help their community thrive.

Applications are due Sunday, July 19: https://t.co/4G8ncBliYi

[Maricopa County Public Health @Maricopahealth]

⚠️ An Extreme Heat Warning will be in effect July 7-July 9.

Stay indoors with a/c during the hottest parts of the day, drink water regularly, and check on others who may be more vulnerable to extreme heat.

Find cooling centers and other resources at https://t.co/Xozf2CbOxN.

[Maricopa County Public Health @Maricopahealth]

Drowning can happen quickly and quietly.

That's why it's important to always watch children around water. Whether you're at a pool, splash pad, lake, or backyard water play area, active supervision can save a life.

[Maricopa County Public Health @Maricopahealth]

🎆 Celebrating this Fourth of July? Make a plan to beat the heat.

Drink plenty of water, wear sunscreen, take breaks in air conditioning, and check in on loved ones who may be more affected by the heat.

Have a fun, safe holiday!

#HeatSafety #FourthOfJuly

[Maricopa County Public Health @Maricopahealth]

The heat doesn’t take holidays—but some cooling centers do.

If you need a place to cool off or hydrate this 4th of July, check https://t.co/Bdva4kfGR0 or call 2-1-1 to find open heat relief sites near you.

Help is available—make sure you and your neighbors stay safe.

[Maricopa County Public Health @Maricopahealth]

📢Now hiring Public Health interns for Fall 2026!
These internship opportunities allow students to gain hands-on public health experience and contribute to building a healthier community.

Deadline: July 19
Apply at: https://t.co/4G8ncBliYi

[Maricopa County Public Health @Maricopahealth]

All Maricopa County Department of Public Health offices and clinics will be closed on Friday July 3 in observance of the July 4th holiday. Please celebrate safely, stay hydrated, and leave fireworks to the professionals!

[Maricopa County Public Health @Maricopahealth]

It's #NationalMosquitoControlWeek. Everyone is at risk for mosquito bites, but the risk of severe illness from West Nile virus is higher for adults 60 and older & people with weakened immune systems or chronic health conditions. Prevent mosquito bites: https://t.co/J0akE7dDQr

[Maricopa County Public Health @Maricopahealth]

(2/2) Anyone who may have been exposed should review their vaccination records and monitor for symptoms through July 8.

Measles is highly contagious and can remain in the air for up to two hours after an infected person leaves an area.

More information:
https://t.co/Qvh2Zz43GI

[Maricopa County Public Health @Maricopahealth]

⚠️ A new measles case has been confirmed, bringing the county's total to 16 cases this year. A public exposure has been identified at:

Sky Harbor Airport Terminal 4
Wednesday, June 17
6:00 a.m. to 9:30 a.m.

(1/2)