Air Quality Data
AQI Scale
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Monitor Readings for Wednesday, October 17, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 35 32
Buckeye 40 37 12 11 0.18 2
Cave Creek 32 30
Central Phoenix 35 32 12 11 0.24 3
Diablo 4.5 19 0.47 5
Durango - - - -
Dysart 39 36 10 9
Falcon Field 36 33
Fountain Hills 34 31
Glendale 37 34 4 4 1.7 7
Higley 17 16
Humboldt Mountain 39 36
Mesa 37 34 6 6 2.4 10 0.17 2
North Phoenix 37 34 - -
Phoenix Supersite 38 35 8 7 - 0.26 3
Pinnacle Peak 37 34
South Phoenix 38 35 11 10 3.4 14 0.37 4
South Scottsdale 30 28 10 9
Tempe 32 30 7 6 2.8 12
West 43rd 32 30
West Chandler 37 34 12 11 0.21 2
West Phoenix 38 35 9 8 3.2 13 0.37 4
Zuni Hills 8 7
Pima County Monitors
22nd & Craycroft 32 30
Ajo 7 6
Children's Park Site 34 31 1.7 7
Coachline 35 32 3.7 15
Fairgrounds 33 31
Green Valley 33 31 7 6 3.4 14
Geronimo 8 7 2.5 10
Orange Grove 10 9 3.5 15
Rillito 38 35
Rose Elementary 32 30 4 17
Saguaro Monument 34 31
South Tucson 11 10
Tangerine 35 32
Pinal County Monitors
Apache Junction 31 29 7 6
Casa Grande Airport 35 32
Casa Grande Downtown 11 10 3 13
Combs 18 17
Eloy 12 11
Hidden Valley 37 34
Maricopa 14 13
Pinal Air Park 38 35 9 8
Pinal County Housing 8 7
Queen Valley 36 33
Stanfield 13 12
Cochise County Monitors
Chiricahua NM 30 28
Douglas 6 6 4.3 18
Paul Spur 6 6
Coconino County Monitors
Flagstaff 28 26
Grand Canyon 35 32
Gila County Monitors
Hayden 16 15
Miami 7 6
Payson 7 6
Tonto Nat'l Monument 36 33
La Paz County Monitors
Alamo Lake 42 39 5 5 4 17
Mohave County Monitors
Bullhead City 2 2
Navajo County Monitors
Petrified Forest 35 32
Santa Cruz County Monitors
Nogales 7 6 3.1 13
Yavapai County Monitors
Prescott 36 33
Yuma County Monitors
Yuma 39 36 22 20 3.7 15
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Tuesday, October 16, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 29 27
Buckeye 31 29 12 11 0.13 1
Cave Creek 25 23
Central Phoenix 27 25 7 6 0.2 2
Diablo 3.1 13 0.42 5
Durango - - - -
Dysart 29 27 7 6
Falcon Field 30 28
Fountain Hills 27 25
Glendale 24 22 2 2 1.7 7
Higley 9 8
Humboldt Mountain 29 27
Mesa 30 28 2 2 1.9 8 0.14 2
North Phoenix 25 23 - -
Phoenix Supersite 27 25 6 6 - -4 0.25 3
Pinnacle Peak 28 26
South Phoenix 30 28 3 3 1.2 5 0.27 3
South Scottsdale 23 21 9 8
Tempe 24 22 3 3 1.8 8
West 43rd 12 11
West Chandler 31 29 5 5 0.2 2
West Phoenix 28 26 4 4 1.8 8 0.28 3
Zuni Hills 6 6
Pima County Monitors
22nd & Craycroft 28 26
Ajo 5 5
Children's Park Site 32 30 1.5 6
Coachline 35 32 2.8 12
Fairgrounds 27 25
Green Valley 33 31 6 6 4.7 20
Geronimo 5 5 3.4 14
Orange Grove 5 5 3 13
Rillito 12 11
Rose Elementary 30 28 2.2 9
Saguaro Monument 28 26
South Tucson 9 8
Tangerine 35 32
Pinal County Monitors
Apache Junction 23 21 4 4
Casa Grande Airport 29 27
Casa Grande Downtown 8 7 1.9 8
Combs 7 6
Eloy 6 6
Hidden Valley 21 19
Maricopa 8 7
Pinal Air Park 35 32 - -
Pinal County Housing 6 6
Queen Valley 30 28
Stanfield 9 8
Cochise County Monitors
Chiricahua NM 29 27
Douglas 7 6 4.6 19
Paul Spur 6 6
Coconino County Monitors
Flagstaff 31 29
Grand Canyon 37 34
Gila County Monitors
Hayden 10 9
Miami - -
Payson 3 3
Tonto Nat'l Monument 29 27
La Paz County Monitors
Alamo Lake 38 35 4 4 3 13
Mohave County Monitors
Bullhead City 3 3
Navajo County Monitors
Petrified Forest 33 31
Santa Cruz County Monitors
Nogales 7 6 2.9 12
Yavapai County Monitors
Prescott 27 25
Yuma County Monitors
Yuma 42 39 24 22 4.1 17
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Monday, October 15, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 39 36
Buckeye 40 37 15 14 0.13 1
Cave Creek 35 32
Central Phoenix 39 36 11 10 0.25 3
Diablo 3.5 15 0.42 5
Durango - - - -
Dysart 39 36 9 8
Falcon Field 39 36
Fountain Hills 36 33
Glendale 38 35 5 5 2.3 10
Higley 8 7
Humboldt Mountain 43 40
Mesa 40 37 4 4 2.6 11 0.15 2
North Phoenix 42 39 1 1 0.5 2
Phoenix Supersite 42 39 8 7 0.8 3 0.23 3
Pinnacle Peak 39 36
South Phoenix 42 39 8 7 2.1 9 0.22 3
South Scottsdale 32 30 11 10
Tempe 34 31 6 6 3.1 13
West 43rd 20 19
West Chandler 41 38 12 11 0.16 2
West Phoenix 44 41 7 6 2.4 10 0.23 3
Zuni Hills 7 6
Pima County Monitors
22nd & Craycroft 39 36
Ajo 13 12
Children's Park Site 38 35 2.8 12
Coachline 37 34 1.6 7
Fairgrounds 39 36
Green Valley 42 39 5 5 1.5 6
Geronimo 10 9 4.2 18
Orange Grove 10 9 4.3 18
Rillito 21 19
Rose Elementary 38 35 3.1 13
Saguaro Monument 40 37
South Tucson 16 15
Tangerine 38 35
Pinal County Monitors
Apache Junction 32 30 4 4
Casa Grande Airport 43 40
Casa Grande Downtown 11 10 3.1 13
Combs 12 11
Eloy 11 10
Hidden Valley 15 14
Maricopa 11 10
Pinal Air Park 41 38 8 7
Pinal County Housing 10 9
Queen Valley 39 36
Stanfield 11 10
Cochise County Monitors
Chiricahua NM 29 27
Douglas 15 14 5 21
Paul Spur 3 3
Coconino County Monitors
Flagstaff 40 37
Grand Canyon 45 42
Gila County Monitors
Hayden 11 10
Miami 6 6
Payson 6 6
Tonto Nat'l Monument 39 36
La Paz County Monitors
Alamo Lake 43 40 10 9 2.8 12
Mohave County Monitors
Bullhead City 33 31
Navajo County Monitors
Petrified Forest 37 34
Santa Cruz County Monitors
Nogales 8 7 3.2 13
Yavapai County Monitors
Prescott 40 37
Yuma County Monitors
Yuma 40 37 53 49 5.8 24
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Sunday, October 14, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 39 36
Buckeye 37 34 9 8 0.2 2
Cave Creek 32 30
Central Phoenix 35 32 11 10 0.3 3
Diablo 4.2 18 0.4 5
Durango - - - -
Dysart 39 36 8 7
Falcon Field 38 35
Fountain Hills 40 37
Glendale 36 33 7 6 5.9 25
Higley 8 7
Humboldt Mountain 43 40
Mesa 40 37 5 5 3.6 15 0.22 3
North Phoenix 39 36 5 5 3.3 14
Phoenix Supersite 37 34 8 7 2.4 10 0.33 4
Pinnacle Peak 39 36
South Phoenix 35 32 11 10 6 25 0.38 4
South Scottsdale - - 9 8
Tempe 32 30 7 6 4.4 18
West 43rd 12 11
West Chandler 39 36 8 7 0.23 3
West Phoenix 36 33 10 9 5.6 23 0.48 5
Zuni Hills 6 6
Pima County Monitors
22nd & Craycroft 36 33
Ajo 3 3
Children's Park Site 36 33 0.4 2
Coachline 34 31 0.2 1
Fairgrounds 35 32
Green Valley 34 31 3 3 -
Geronimo 4 4 2 8
Orange Grove 2 2 2.8 12
Rillito 11 10
Rose Elementary 34 31 1.5 6
Saguaro Monument 38 35
South Tucson 7 6
Tangerine 36 33
Pinal County Monitors
Apache Junction 34 31 7 6
Casa Grande Airport 37 34
Casa Grande Downtown 7 6 1.9 8
Combs 6 6
Eloy 9 8
Hidden Valley 7 6
Maricopa 8 7
Pinal Air Park 37 34 5 5
Pinal County Housing 6 6
Queen Valley 39 36
Stanfield 8 7
Cochise County Monitors
Chiricahua NM 38 35
Douglas 16 15 3.7 15
Paul Spur 3 3
Coconino County Monitors
Flagstaff 39 36
Grand Canyon 44 41
Gila County Monitors
Hayden 8 7
Miami 5 5
Payson 4 4
Tonto Nat'l Monument 43 40
La Paz County Monitors
Alamo Lake 45 42 6 6 2.5 10
Mohave County Monitors
Bullhead City 12 11
Navajo County Monitors
Petrified Forest 39 36
Santa Cruz County Monitors
Nogales 10 9 4 17
Yavapai County Monitors
Prescott 37 34
Yuma County Monitors
Yuma 47 44 8 7 3.4 14
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Saturday, October 13, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 23 21
Buckeye 26 24 8 7 0.16 2
Cave Creek 19 18
Central Phoenix 18 17 7 6 0.3 3
Diablo 3.8 16 0.47 5
Durango - - - -
Dysart 26 24 7 6
Falcon Field 23 21
Fountain Hills 22 20
Glendale 21 19 2 2 1.9 8
Higley 7 6
Humboldt Mountain 34 31
Mesa 23 21 3 3 2.5 10 0.31 4
North Phoenix 22 20 2 2 1.8 8
Phoenix Supersite 21 19 4 4 1 4 0.38 4
Pinnacle Peak 25 23
South Phoenix 20 19 4 4 2.9 12 0.38 4
South Scottsdale 24 22 6 6
Tempe 16 15 4 4 4 17
West 43rd 10 9
West Chandler 23 21 7 6 0.28 3
West Phoenix 22 20 4 4 2.7 11 0.47 5
Zuni Hills 7 6
Pima County Monitors
22nd & Craycroft 22 20
Ajo -
Children's Park Site 22 20 - -2
Coachline 21 19 - -3
Fairgrounds 21 19
Green Valley 23 21 1 1 - -2
Geronimo 1 1 1.8 8
Orange Grove - 0.7 3
Rillito 11 10
Rose Elementary 21 19 0.4 2
Saguaro Monument 22 20
South Tucson 5 5
Tangerine 22 20
Pinal County Monitors
Apache Junction 18 17 6 6
Casa Grande Airport 25 23
Casa Grande Downtown 4 4 1 4
Combs 3 3
Eloy 6 6
Hidden Valley 5 5
Maricopa 6 6
Pinal Air Park 23 21 5 5
Pinal County Housing 4 4
Queen Valley 23 21
Stanfield 5 5
Cochise County Monitors
Chiricahua NM 27 25
Douglas - 2.6 11
Paul Spur 2 2
Coconino County Monitors
Flagstaff 32 30
Grand Canyon 34 31
Gila County Monitors
Hayden 6 6
Miami 2 2
Payson 5 5
Tonto Nat'l Monument 26 24
La Paz County Monitors
Alamo Lake 37 34 6 6 3.3 14
Mohave County Monitors
Bullhead City 5 5
Navajo County Monitors
Petrified Forest 35 32
Santa Cruz County Monitors
Nogales 2 2 1.4 6
Yavapai County Monitors
Prescott 31 29
Yuma County Monitors
Yuma 48 44 15 14 4.4 18
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Friday, October 12, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 30 28
Buckeye 31 29 18 17 0.18 2
Cave Creek 24 22
Central Phoenix 25 23 14 13 0.17 2
Diablo 5.7 24 0.52 6
Durango - - - -
Dysart 33 31 16 15
Falcon Field 29 27
Fountain Hills 29 27
Glendale 29 27 8 7 3.2 13
Higley 14 13
Humboldt Mountain 33 31
Mesa 30 28 8 7 3.7 15 0.22 3
North Phoenix 30 28 8 7 3 13
Phoenix Supersite 29 27 11 10 3.2 13 0.34 4
Pinnacle Peak 30 28
South Phoenix 27 25 9 8 3.3 14 0.25 3
South Scottsdale 23 21 12 11
Tempe 25 23 7 6 3.4 14
West 43rd 28 26
West Chandler 26 24 13 12 0.21 2
West Phoenix 28 26 12 11 4.8 20 0.35 4
Zuni Hills 14 13
Pima County Monitors
22nd & Craycroft 26 24
Ajo 3 3
Children's Park Site 27 25 - -3
Coachline 27 25 - -3
Fairgrounds 25 23
Green Valley 24 22 3 3 1.5 6
Geronimo 4 4 1.4 6
Orange Grove 2 2 2.2 9
Rillito 38 35
Rose Elementary 25 23 2.4 10
Saguaro Monument 27 25
South Tucson 6 6
Tangerine 29 27
Pinal County Monitors
Apache Junction 22 20 9 8
Casa Grande Airport 25 23
Casa Grande Downtown 9 8 2.7 11
Combs - -13
Eloy 8 7
Hidden Valley 10 9
Maricopa 9 8
Pinal Air Park 29 27 5 5
Pinal County Housing 8 7
Queen Valley 29 27
Stanfield 9 8
Cochise County Monitors
Chiricahua NM 27 25
Douglas 2 2 2.5 10
Paul Spur 1 1
Coconino County Monitors
Flagstaff 37 34
Grand Canyon 41 38
Gila County Monitors
Hayden 9 8
Miami 9 8
Payson 9 8
Tonto Nat'l Monument 31 29
La Paz County Monitors
Alamo Lake 34 31 11 10 5.1 21
Mohave County Monitors
Bullhead City 6 6
Navajo County Monitors
Petrified Forest 37 34
Santa Cruz County Monitors
Nogales - 0.3 1
Yavapai County Monitors
Prescott 34 31
Yuma County Monitors
Yuma 31 29 22 20 4.4 18
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Thursday, October 11, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 38 35
Buckeye 33 31 24 22 0.25 3
Cave Creek 31 29
Central Phoenix 32 30 24 22 0.26 3
Diablo 6.5 27 0.51 6
Durango - - - -
Dysart 36 33 22 20
Falcon Field 34 31
Fountain Hills 31 29
Glendale 34 31 12 11 3.5 15
Higley 28 26
Humboldt Mountain 41 38
Mesa 34 31 14 13 4.7 20 0.26 3
North Phoenix 34 31 12 11 3.7 15
Phoenix Supersite 33 31 19 18 3.2 13 0.35 4
Pinnacle Peak 37 34
South Phoenix 34 31 16 15 4.3 18 0.25 3
South Scottsdale 30 28 20 19
Tempe 30 28 13 12 3.7 15
West 43rd 35 32
West Chandler 33 31 22 20 0.25 3
West Phoenix 34 31 18 17 5.3 22 0.35 4
Zuni Hills 18 17
Pima County Monitors
22nd & Craycroft 34 31
Ajo 13 12
Children's Park Site 35 32 2.8 12
Coachline 33 31 4 17
Fairgrounds 35 32
Green Valley 34 31 11 10 3.7 15
Geronimo 21 19 4.4 18
Orange Grove 77 62 4 17
Rillito 27 25
Rose Elementary 34 31 4.9 20
Saguaro Monument 36 33
South Tucson 25 23
Tangerine 35 32
Pinal County Monitors
Apache Junction 32 30 19 18
Casa Grande Airport 32 30
Casa Grande Downtown 22 20 3.9 16
Combs - -15
Eloy 23 21
Hidden Valley 53 49
Maricopa 23 21
Pinal Air Park 34 31 19 18
Pinal County Housing 23 21
Queen Valley 38 35
Stanfield 26 24
Cochise County Monitors
Chiricahua NM 36 33
Douglas 17 16 4.5 19
Paul Spur 7 6
Coconino County Monitors
Flagstaff 36 33
Grand Canyon 41 38
Gila County Monitors
Hayden 18 17
Miami 16 15
Payson 11 10
Tonto Nat'l Monument 39 36
La Paz County Monitors
Alamo Lake 37 34 15 14 5.2 22
Mohave County Monitors
Bullhead City 20 19
Navajo County Monitors
Petrified Forest 40 37
Santa Cruz County Monitors
Nogales 18 17 5 21
Yavapai County Monitors
Prescott 36 33
Yuma County Monitors
Yuma 41 38 28 26 7.1 30
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


Main Office
1110 W.Washington Street
Phoenix, AZ 85007
P: 602.771.2300
azdeq.gov