Air Quality Data
AQI Scale
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Monitor Readings for Wednesday, February 21, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 46 43
Buckeye 40 37 19 18 0.18 2
Cave Creek 49 45
Central Phoenix 39 36 29 27 0.65 7
Diablo 6.4 27 0.55 6
Durango 56 51 10.5 44
Dysart 47 44 16 15
Falcon Field 43 40
Fountain Hills 45 42
Glendale 44 41 15 14 5.3 22
Higley 30 28
Humboldt Mountain 50 46
Mesa 44 41 19 18 5.8 24 0.3 3
North Phoenix 47 44 17 16 7.2 30
Phoenix Supersite 40 37 33 31 9.3 39 0.92 10
Pinnacle Peak 47 44
South Phoenix 43 40 24 22 7.5 31 0.74 8
South Scottsdale 37 34 24 22
Tempe 32 30 23 21 6.8 28
West 43rd 44 41
West Chandler 46 43 28 26 0.55 6
West Phoenix 44 41 30 28 9.7 40 1.07 12
Zuni Hills 16 15
Pima County Monitors
22nd & Craycroft 46 43
Ajo 12 11
Children's Park Site 44 41 4.3 18
Coachline 46 43 7.2 30
Fairgrounds 48 44
Green Valley 47 44 13 12 7.8 33
Geronimo 27 25 6.8 28
Orange Grove 25 23 7.1 30
Rillito 32 30
Rose Elementary 44 41 5.2 22
Saguaro Monument 48 44
South Tucson 24 22
Tangerine 47 44
Pinal County Monitors
Apache Junction 40 37 23 21
Casa Grande Airport 46 43
Casa Grande Downtown 25 23 6 25
Combs 33 31
Eloy 27 25
Hidden Valley 28 26
Maricopa 27 25
Pinal Air Park 46 43 18 17
Pinal County Housing 24 22
Queen Valley 49 45
Stanfield 24 22
Cochise County Monitors
Chiricahua NM 45 42
Douglas 20 19 5.2 22
Paul Spur 16 15
Coconino County Monitors
Flagstaff 50 46
Grand Canyon 47 44
Gila County Monitors
Hayden 22 20
Miami 23 21
Payson 24 22
Tonto Nat'l Monument 47 44
La Paz County Monitors
Alamo Lake 46 43 4 4 4.5 19
Mohave County Monitors
Bullhead City 11 10
Navajo County Monitors
Petrified Forest 48 44
Santa Cruz County Monitors
Nogales 29 27 10.3 43
Yavapai County Monitors
Prescott 45 42
Yuma County Monitors
Yuma 49 45 33 31 6.7 28
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Tuesday, February 20, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 49 45
Buckeye 46 43 39 36 0.13 1
Cave Creek 49 45
Central Phoenix 45 42 42 39 0.71 8
Diablo 7.5 31 0.42 5
Durango 46 43 7.9 33
Dysart 48 44 29 27
Falcon Field 46 43
Fountain Hills 49 45
Glendale 44 41 25 23 5.7 24
Higley 46 43
Humboldt Mountain 48 44
Mesa 46 43 34 31 8.1 34 0.41 5
North Phoenix 49 45 26 24 7.2 30
Phoenix Supersite 46 43 30 28 6.3 26 0.91 10
Pinnacle Peak 50 46
South Phoenix 44 41 39 36 8.8 37 0.47 5
South Scottsdale 40 37 36 33
Tempe 34 31 31 29 7.3 30
West 43rd 55 51
West Chandler 46 43 36 33 0.51 6
West Phoenix 46 43 32 30 7.8 33 0.8 9
Zuni Hills 22 20
Pima County Monitors
22nd & Craycroft 43 40
Ajo 17 16
Children's Park Site 43 40 12.2 51
Coachline 44 41 12.5 52
Fairgrounds 45 42
Green Valley 43 40 37 34 14.8 57
Geronimo 55 51 12.8 52
Orange Grove 54 50 11.4 48
Rillito 61 54
Rose Elementary 42 39 12.2 51
Saguaro Monument 44 41
South Tucson 50 46
Tangerine 45 42
Pinal County Monitors
Apache Junction 40 37 43 40
Casa Grande Airport 45 42
Casa Grande Downtown 39 36 17.9 63
Combs 53 49
Eloy 42 39
Hidden Valley 36 33
Maricopa 44 41
Pinal Air Park 23 21 43 40
Pinal County Housing 31 29
Queen Valley 45 42
Stanfield 39 36
Cochise County Monitors
Chiricahua NM 43 40
Douglas 14 13 4.3 18
Paul Spur 12 11
Coconino County Monitors
Flagstaff 45 42
Grand Canyon 44 41
Gila County Monitors
Hayden 58 52
Miami 46 43
Payson 28 26
Tonto Nat'l Monument 48 44
La Paz County Monitors
Alamo Lake 46 43 14 13 6.7 28
Mohave County Monitors
Bullhead City 5 5
Navajo County Monitors
Petrified Forest 47 44
Santa Cruz County Monitors
Nogales 34 31 7.1 30
Yavapai County Monitors
Prescott 39 36
Yuma County Monitors
Yuma 46 43 22 20 4.2 18
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Monday, February 19, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 46 43
Buckeye 44 41 60 53 0.13 1
Cave Creek 46 43
Central Phoenix 43 40 48 44 0.28 3
Diablo 4.5 19 0.18 2
Durango 54 50 5 21
Dysart 46 43 48 44
Falcon Field 45 42
Fountain Hills 43 40
Glendale 41 38 34 31 4.3 18
Higley 95 71
Humboldt Mountain 47 44
Mesa 44 41 31 29 4.1 17 0.21 2
North Phoenix 45 42 30 28 6.2 26
Phoenix Supersite 43 40 - - 6.2 26 0.44 5
Pinnacle Peak 45 42
South Phoenix 43 40 33 31 4.4 18 0.22 3
South Scottsdale 40 37 37 34
Tempe 35 32 32 30 4.6 19
West 43rd 89 68
West Chandler 44 41 66 56 0.2 2
West Phoenix 44 41 40 37 5.3 22 0.45 5
Zuni Hills 40 37
Pima County Monitors
22nd & Craycroft 41 38
Ajo 75 61
Children's Park Site 43 40 6.6 28
Coachline 40 37 9 38
Fairgrounds 40 37
Green Valley 38 35 5 5 6.2 26
Geronimo 36 33 6.5 27
Orange Grove 32 30 7.5 31
Rillito 75 61
Rose Elementary 38 35 6.3 26
Saguaro Monument 41 38
South Tucson 24 22
Tangerine 43 40
Pinal County Monitors
Apache Junction 41 38 37 34
Casa Grande Airport 43 40
Casa Grande Downtown 67 57 10.6 44
Combs 95 71
Eloy 166 106
Hidden Valley 97 72
Maricopa 90 68
Pinal Air Park 43 40 66 56
Pinal County Housing 189 118
Queen Valley 44 41
Stanfield 417 290
Cochise County Monitors
Chiricahua NM 39 36
Douglas 7 6 2.4 10
Paul Spur 4 4
Coconino County Monitors
Flagstaff 46 43
Grand Canyon 46 43
Gila County Monitors
Hayden 204 125
Miami 12 11
Payson 19 18
Tonto Nat'l Monument 44 41
La Paz County Monitors
Alamo Lake 47 44 35 32 7.6 32
Mohave County Monitors
Bullhead City 44 41
Navajo County Monitors
Petrified Forest 43 40
Santa Cruz County Monitors
Nogales 7 6 3 13
Yavapai County Monitors
Prescott 43 40
Yuma County Monitors
Yuma 49 45 222 134 26.8 82
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Sunday, February 18, 2018
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 42 39
Buckeye 41 38 12 11 0.28 3
Cave Creek 43 40
Central Phoenix 38 35 15 14 0.66 8
Diablo 12.5 52 0.71 8
Durango 28 26 17.7 63
Dysart 43 40 10 9
Falcon Field 40 37
Fountain Hills 38 35
Glendale 38 35 18 17 13.7 54
Higley 13 12
Humboldt Mountain 44 41
Mesa 41 38 15 14 11.8 49 0.48 5
North Phoenix 39 36 18 17 14.8 57
Phoenix Supersite 37 34 - - 15.3 58 0.78 9
Pinnacle Peak 43 40
South Phoenix 37 34 28 26 21.1 70 0.9 10
South Scottsdale 35 32 10 9
Tempe 32 30 13 12 10.3 43
West 43rd 16 15
West Chandler 40 37 12 11 0.41 5
West Phoenix 38 35 31 29 20.3 68 1.68 19
Zuni Hills 10 9
Pima County Monitors
22nd & Craycroft 31 29
Ajo 5 5
Children's Park Site 31 29 4.8 20
Coachline 35 32 6.4 27
Fairgrounds 33 31
Green Valley 31 29 2 2 5.9 25
Geronimo 17 16 5.6 23
Orange Grove 12 11 6.5 27
Rillito 19 18
Rose Elementary 30 28 5.6 23
Saguaro Monument 33 31
South Tucson 12 11
Tangerine 35 32
Pinal County Monitors
Apache Junction 37 34 7 6
Casa Grande Airport 43 40
Casa Grande Downtown 8 7 6.4 27
Combs 8 7
Eloy 11 10
Hidden Valley 12 11
Maricopa 8 7
Pinal Air Park 34 31 6 6
Pinal County Housing 7 6
Queen Valley 44 41
Stanfield 7 6
Cochise County Monitors
Chiricahua NM 31 29
Douglas 9 8 2.3 10
Paul Spur 2 2
Coconino County Monitors
Flagstaff 45 42
Grand Canyon 44 41
Gila County Monitors
Hayden 12 11
Miami 8 7
Payson 11 10
Tonto Nat'l Monument 41 38
La Paz County Monitors
Alamo Lake 44 41 9 8 4.6 19
Mohave County Monitors
Bullhead City 22 20
Navajo County Monitors
Petrified Forest 38 35
Santa Cruz County Monitors
Nogales 23 21 8.2 34
Yavapai County Monitors
Prescott 44 41
Yuma County Monitors
Yuma 46 43 26 24 6.3 26
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Saturday, February 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 36 33
Buckeye 37 34 17 16 0.33 4
Cave Creek 40 37
Central Phoenix 31 29 25 23 1.11 13
Diablo 16.7 61 0.8 9
Durango 37 34 21.5 71
Dysart 40 37 13 12
Falcon Field 35 32
Fountain Hills 32 30
Glendale 35 32 22 20 16.6 60
Higley 18 17
Humboldt Mountain 41 38
Mesa 39 36 17 16 13.4 54 0.6 7
North Phoenix 36 33 21 19 16.5 60
Phoenix Supersite 34 31 23 21 14.4 56 1.11 13
Pinnacle Peak 38 35
South Phoenix 34 31 38 35 26 80 1.18 13
South Scottsdale 30 28 17 16
Tempe 27 25 19 18 13 53
West 43rd 26 24
West Chandler 37 34 14 13 0.4 5
West Phoenix 36 33 30 28 18 63 1.82 21
Zuni Hills 12 11
Pima County Monitors
22nd & Craycroft 35 32
Ajo 7 6
Children's Park Site 34 31 6.9 29
Coachline 34 31 9.7 40
Fairgrounds 35 32
Green Valley 35 32 1 1 6.2 26
Geronimo 20 19 10.6 44
Orange Grove 15 14 11 46
Rillito 16 15
Rose Elementary 34 31 10.7 45
Saguaro Monument 37 34
South Tucson 19 18
Tangerine 36 33
Pinal County Monitors
Apache Junction 31 29 12 11
Casa Grande Airport 36 33
Casa Grande Downtown 15 14 15 57
Combs 16 15
Eloy 19 18
Hidden Valley 12 11
Maricopa 11 10
Pinal Air Park 36 33 5 5
Pinal County Housing 11 10
Queen Valley 38 35
Stanfield 10 9
Cochise County Monitors
Chiricahua NM 33 31
Douglas 6 6 3.6 15
Paul Spur 2 2
Coconino County Monitors
Flagstaff 41 38
Grand Canyon 45 42
Gila County Monitors
Hayden 19 18
Miami 10 9
Payson 13 12
Tonto Nat'l Monument 31 29
La Paz County Monitors
Alamo Lake 43 40 7 6 5.8 24
Mohave County Monitors
Bullhead City 11 10
Navajo County Monitors
Petrified Forest 40 37
Santa Cruz County Monitors
Nogales 14 13 5.7 24
Yavapai County Monitors
Prescott 41 38
Yuma County Monitors
Yuma 48 44 29 27 6.7 28
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Friday, February 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 33 31
Buckeye 28 26 15 14 0.21 2
Cave Creek 35 32
Central Phoenix 19 18 26 24 0.73 8
Diablo 15.2 58 0.6 7
Durango 47 44 17.4 62
Dysart 33 31 14 13
Falcon Field 29 27
Fountain Hills 29 27
Glendale 30 28 12 11 7.5 31
Higley 13 12
Humboldt Mountain 39 36
Mesa 25 23 17 16 12.3 51 0.33 4
North Phoenix 28 26 16 15 11.5 48
Phoenix Supersite 21 19 22 20 10.7 45 0.86 10
Pinnacle Peak 34 31
South Phoenix 22 20 30 28 16.6 60 0.91 10
South Scottsdale 17 16 14 13
Tempe 13 12 28 26 14.8 57
West 43rd 35 32
West Chandler 25 23 14 13 0.37 4
West Phoenix 21 19 26 24 12.9 53 1.21 14
Zuni Hills 9 8
Pima County Monitors
22nd & Craycroft 7 6
Ajo 5 5
Children's Park Site 9 8 6.7 28
Coachline 14 13 10.4 43
Fairgrounds 17 16
Green Valley 17 16 - - 5.6 23
Geronimo 9 8 7.5 31
Orange Grove 12 11 9.6 40
Rillito 15 14
Rose Elementary 9 8 6.2 26
Saguaro Monument 15 14
South Tucson 13 12
Tangerine 17 16
Pinal County Monitors
Apache Junction 24 22 9 8
Casa Grande Airport 24 22
Casa Grande Downtown 13 12 13.4 54
Combs 19 18
Eloy 16 15
Hidden Valley 6 6
Maricopa 9 8
Pinal Air Park 23 21 7 6
Pinal County Housing 13 12
Queen Valley 28 26
Stanfield 10 9
Cochise County Monitors
Chiricahua NM 30 28
Douglas 5 5 3.4 14
Paul Spur 1 1
Coconino County Monitors
Flagstaff 39 36
Grand Canyon 47 44
Gila County Monitors
Hayden 13 12
Miami 10 9
Payson 16 15
Tonto Nat'l Monument 30 28
La Paz County Monitors
Alamo Lake 44 41 6 6 4.9 20
Mohave County Monitors
Bullhead City 10 9
Navajo County Monitors
Petrified Forest 28 26
Santa Cruz County Monitors
Nogales 3 3 2.7 11
Yavapai County Monitors
Prescott 40 37
Yuma County Monitors
Yuma 42 39 22 20 6.5 27
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Thursday, February 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 33 31
Buckeye 32 30 9 8 0.21 2
Cave Creek 36 33
Central Phoenix 30 28 12 11 0.65 7
Diablo 7.8 33 0.57 6
Durango 12 11 7.3 30
Dysart 35 32 9 8
Falcon Field 32 30
Fountain Hills 29 27
Glendale 30 28 7 6 5.7 24
Higley 8 7
Humboldt Mountain 37 34
Mesa 32 30 6 6 5 21 0.4 5
North Phoenix 34 31 7 6 6.1 25
Phoenix Supersite 33 31 13 12 6.5 27 0.75 9
Pinnacle Peak 38 35
South Phoenix 31 29 13 12 8.6 36 0.71 8
South Scottsdale 26 24 9 8
Tempe 20 19 8 7 6.4 27
West 43rd 9 8
West Chandler 28 26 7 6 0.35 4
West Phoenix 33 31 11 10 7.2 30 1.01 11
Zuni Hills 8 7
Pima County Monitors
22nd & Craycroft 13 12
Ajo 1 1
Children's Park Site 13 12 2.8 12
Coachline 20 19 1.6 7
Fairgrounds 16 15
Green Valley 16 15 - - 4.9 20
Geronimo 2 2 3.4 14
Orange Grove 4 4 4 17
Rillito 6 6
Rose Elementary 15 14 2.9 12
Saguaro Monument 13 12
South Tucson 5 5
Tangerine 19 18
Pinal County Monitors
Apache Junction 25 23 6 6
Casa Grande Airport 34 31
Casa Grande Downtown 4 4 4.4 18
Combs 7 6
Eloy 5 5
Hidden Valley 3 3
Maricopa 5 5
Pinal Air Park 25 23 3 3
Pinal County Housing 5 5
Queen Valley 30 28
Stanfield 4 4
Cochise County Monitors
Chiricahua NM 22 20
Douglas 8 7 3.9 16
Paul Spur 2 2
Coconino County Monitors
Flagstaff 38 35
Grand Canyon 46 43
Gila County Monitors
Hayden 7 6
Miami 4 4
Payson 7 6
Tonto Nat'l Monument 30 28
La Paz County Monitors
Alamo Lake 39 36 6 6 5.7 24
Mohave County Monitors
Bullhead City 8 7
Navajo County Monitors
Petrified Forest 38 35
Santa Cruz County Monitors
Nogales 2 2 1.4 6
Yavapai County Monitors
Prescott 37 34
Yuma County Monitors
Yuma 52 48 12 11 5.8 24
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