Air Quality Data
AQI Scale
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Monitor Readings for Thursday, February 14, 2019
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 26 24
Buckeye 22 20 16 15 0.32 4
Cave Creek 36 33
Central Phoenix 20 19 24 22 0.47 5
Diablo 11.2 47 0.81 9
Durango 21 19 8.9 37
Dysart 32 30 10 9
Falcon Field 27 25
Fountain Hills 26 24
Glendale 27 25 11 10 6.8 28
Higley 19 18
Humboldt Mountain 42 39
Mesa 26 24 18 17 8.2 34 0.35 4
North Phoenix 28 26 10 9 5.8 24
Phoenix Supersite 24 22 17 16 8.6 36 0.5 6
Pinnacle Peak 34 31
South Phoenix 22 20 14 13 8.8 37 0.51 6
South Scottsdale 19 18 16 15
Tempe 20 19 15 14 7.6 32
West 43rd 34 31
West Chandler 23 21 21 19 0.52 6
West Phoenix 20 19 17 16 8.3 35 0.82 9
Zuni Hills 9 8
Pima County Monitors
22nd & Craycroft 26 24
Ajo 6 6
Children's Park Site 28 26 3.5 15
Coachline 25 23 4.7 20
Fairgrounds 32 30
Green Valley 31 29 6 6 4 17
Geronimo 25 23 7 29
Orange Grove 26 24 3.9 16
Rillito 46 43
Rose Elementary 25 23 4.6 19
Saguaro Monument 38 35
South Tucson 28 26
Tangerine 28 26
Pinal County Monitors
Apache Junction 25 23 12 11
Casa Grande Airport 21 19
Casa Grande Downtown 17 16 6.8 28
Combs 21 19
Eloy 23 21
Hidden Valley 19 18
Maricopa 15 14
Pinal Air Park 22 20 23 21
Pinal County Housing 17 16
Queen Valley 38 35
Stanfield 17 16
Cochise County Monitors
Chiricahua NM 38 35
Douglas 42 39 4.5 19
Paul Spur 8 7
Coconino County Monitors
Flagstaff 45 42
Grand Canyon 44 41
Gila County Monitors
Hayden 14 13
Miami 10 9
Payson 3 3
Tonto Nat'l Monument 36 33
La Paz County Monitors
Alamo Lake 36 33 6 6 4 17
Mohave County Monitors
Bullhead City 1 1
Navajo County Monitors
Petrified Forest 39 36
Santa Cruz County Monitors
Nogales 32 30 7.2 30
Yavapai County Monitors
Prescott 37 34
Yuma County Monitors
Yuma 39 36 13 12 5.6 23
Preliminary Data
Pollutant data is not measured at this monitor
Pollutant data is missing or invalid


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Monitor Readings for Wednesday, February 13, 2019
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 40 37
Buckeye 23 21 39 36 0.32 4
Cave Creek 38 35
Central Phoenix 23 21 37 34 0.61 7
Diablo 8.1 34 0.82 9
Durango 56 51 11.2 47
Dysart 31 29 24 22
Falcon Field 30 28
Fountain Hills 37 34
Glendale 28 26 20 19 7 29
Higley 35 32
Humboldt Mountain 48 44
Mesa 29 27 24 22 6.8 28 0.51 6
North Phoenix 30 28 18 17 6.9 29
Phoenix Supersite 27 25 36 33 10.3 43 0.75 9
Pinnacle Peak 43 40
South Phoenix 31 29 23 21 8.5 35 0.52 6
South Scottsdale 25 23 25 23
Tempe 21 19 21 19 6.1 25
West 43rd 78 62
West Chandler 26 24 30 28 0.52 6
West Phoenix 22 20 41 38 12 50 1.37 16
Zuni Hills 17 16
Pima County Monitors
22nd & Craycroft 39 36
Ajo 14 13
Children's Park Site 38 35 5.7 24
Coachline 35 32 4.2 18
Fairgrounds 43 40
Green Valley 45 42 8 7 4.7 20
Geronimo 39 36 7.7 32
Orange Grove 40 37 8 33
Rillito 47 44
Rose Elementary 37 34 5.7 24
Saguaro Monument 47 44
South Tucson 38 35
Tangerine 42 39
Pinal County Monitors
Apache Junction 33 31 12 11
Casa Grande Airport 31 29
Casa Grande Downtown 34 31 7.5 31
Combs 57 52
Eloy 39 36
Hidden Valley 111 79
Maricopa 40 37
Pinal Air Park 32 30 25 23
Pinal County Housing 38 35
Queen Valley 46 43
Stanfield 49 45
Cochise County Monitors
Chiricahua NM 46 43
Douglas 30 28 3.7 15
Paul Spur 9 8
Coconino County Monitors
Flagstaff 48 44
Grand Canyon 48 44
Gila County Monitors
Hayden 18 17
Miami 17 16
Payson 23 21
Tonto Nat'l Monument 40 37
La Paz County Monitors
Alamo Lake 48 44 5 5 3.2 13
Mohave County Monitors
Bullhead City 17 16
Navajo County Monitors
Petrified Forest 45 42
Santa Cruz County Monitors
Nogales 78 62 23.2 74
Yavapai County Monitors
Prescott 44 41
Yuma County Monitors
Yuma 36 33 36 33 8 33
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 12, 2019
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 50 46
Buckeye 39 36 26 24 0.28 3
Cave Creek 42 39
Central Phoenix 36 33 29 27 0.72 8
Diablo 5.3 22 0.82 9
Durango 37 34 8.5 35
Dysart 43 40 20 19
Falcon Field 45 42
Fountain Hills 44 41
Glendale 37 34 14 13 5.7 24
Higley 16 15
Humboldt Mountain 52 48
Mesa 46 43 12 11 3.7 15 0.28 3
North Phoenix 46 43 12 11 4.5 19
Phoenix Supersite 49 45 28 26 10.7 45 0.97 11
Pinnacle Peak 49 45
South Phoenix 41 38 15 14 7.2 30 0.66 8
South Scottsdale 35 32 16 15
Tempe 35 32 13 12 4.3 18
West 43rd 52 48
West Chandler 44 41 21 19 0.63 7
West Phoenix 41 38 30 28 10.3 43 1.18 13
Zuni Hills 12 11
Pima County Monitors
22nd & Craycroft 46 43
Ajo 13 12
Children's Park Site 45 42 5.8 24
Coachline 46 43 4.7 20
Fairgrounds 48 44
Green Valley 50 46 12 11 4.6 19
Geronimo 26 24 6.3 26
Orange Grove 23 21 5.4 23
Rillito 35 32
Rose Elementary 47 44 4.3 18
Saguaro Monument 50 46
South Tucson 26 24
Tangerine 48 44
Pinal County Monitors
Apache Junction 42 39 8 7
Casa Grande Airport 45 42
Casa Grande Downtown 23 21 4.4 18
Combs 22 20
Eloy 29 27
Hidden Valley 47 44
Maricopa 30 28
Pinal Air Park 45 42 15 14
Pinal County Housing 24 22
Queen Valley 50 46
Stanfield 39 36
Cochise County Monitors
Chiricahua NM 51 47
Douglas 18 17 1.9 8
Paul Spur 9 8
Coconino County Monitors
Flagstaff 45 42
Grand Canyon 51 47
Gila County Monitors
Hayden 13 12
Miami 16 15
Payson 28 26
Tonto Nat'l Monument 49 45
La Paz County Monitors
Alamo Lake 43 40 4 4 2.9 12
Mohave County Monitors
Bullhead City 1 1
Navajo County Monitors
Petrified Forest 48 44
Santa Cruz County Monitors
Nogales 58 52 15.8 59
Yavapai County Monitors
Prescott 40 37
Yuma County Monitors
Yuma 43 40 26 24 4.5 19
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 11, 2019
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 26 24 0.2 2
Cave Creek 49 45
Central Phoenix 41 38 20 19 0.82 9
Diablo 5.3 22 0.56 6
Durango 23 21 4 17
Dysart 48 44 16 15
Falcon Field 50 46
Fountain Hills 43 40
Glendale 41 38 12 11 5.7 24
Higley 19 18
Humboldt Mountain 50 46
Mesa 51 47 14 13 5.7 24 0.33 4
North Phoenix 50 46 11 10 5.5 23
Phoenix Supersite 46 43 17 16 6.1 25 0.75 9
Pinnacle Peak 50 46
South Phoenix 48 44 16 15 6.5 27 0.67 8
South Scottsdale 37 34 15 14
Tempe 38 35 16 15 5 21
West 43rd 35 32
West Chandler 48 44 20 19 0.61 7
West Phoenix 49 45 15 14 4.6 19 1.08 12
Zuni Hills 10 9
Pima County Monitors
22nd & Craycroft 47 44
Ajo 8 7
Children's Park Site 48 44 7 29
Coachline 47 44 3 13
Fairgrounds 51 47
Green Valley 51 47 13 12 4.2 18
Geronimo 26 24 8.7 36
Orange Grove 22 20 6.2 26
Rillito 32 30
Rose Elementary 47 44 6.8 28
Saguaro Monument 49 45
South Tucson 30 28
Tangerine 50 46
Pinal County Monitors
Apache Junction 43 40 11 10
Casa Grande Airport 47 44
Casa Grande Downtown 21 19 4.6 19
Combs 24 22
Eloy 25 23
Hidden Valley 27 25
Maricopa 20 19
Pinal Air Park 48 44 13 12
Pinal County Housing 18 17
Queen Valley 50 46
Stanfield 37 34
Cochise County Monitors
Chiricahua NM 53 49
Douglas 9 8 2 8
Paul Spur 5 5
Coconino County Monitors
Flagstaff 49 45
Grand Canyon 50 46
Gila County Monitors
Hayden 19 18
Miami 10 9
Payson 11 10
Tonto Nat'l Monument 54 50
La Paz County Monitors
Alamo Lake - -2 6 6 3.5 15
Mohave County Monitors
Bullhead City 3 3
Navajo County Monitors
Petrified Forest 51 47
Santa Cruz County Monitors
Nogales 13 12 5.2 22
Yavapai County Monitors
Prescott 43 40
Yuma County Monitors
Yuma 46 43 27 25 4.5 19
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 10, 2019
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 43 40
Buckeye 42 39 13 12 0.23 3
Cave Creek 45 42
Central Phoenix 37 34 27 25 0.86 10
Diablo 9.9 41 0.8 9
Durango 24 22 15.6 58
Dysart 46 43 12 11
Falcon Field 43 40
Fountain Hills 41 38
Glendale 39 36 19 18 12.8 52
Higley 17 16
Humboldt Mountain 49 45
Mesa 45 42 13 12 8.9 37 0.55 6
North Phoenix 42 39 20 19 14.5 56
Phoenix Supersite 42 39 32 30 20 68 0.93 11
Pinnacle Peak 47 44
South Phoenix 44 41 27 25 18.6 65 0.91 10
South Scottsdale 34 31 17 16
Tempe 36 33 15 14 10.4 43
West 43rd 28 26
West Chandler 42 39 22 20 0.8 9
West Phoenix 42 39 38 35 26.8 82 1.51 17
Zuni Hills 10 9
Pima County Monitors
22nd & Craycroft 38 35
Ajo 4 4
Children's Park Site 38 35 5.8 24
Coachline 40 37 4.3 18
Fairgrounds 45 42
Green Valley 47 44 9 8 4.6 19
Geronimo 22 20 6.8 28
Orange Grove 24 22 8.5 35
Rillito 27 25
Rose Elementary 40 37 4 17
Saguaro Monument 44 41
South Tucson 18 17
Tangerine 38 35
Pinal County Monitors
Apache Junction 37 34 10 9
Casa Grande Airport 40 37
Casa Grande Downtown 16 15 7.1 30
Combs 14 13
Eloy 22 20
Hidden Valley 21 19
Maricopa 16 15
Pinal Air Park 40 37 10 9
Pinal County Housing 19 18
Queen Valley 46 43
Stanfield 14 13
Cochise County Monitors
Chiricahua NM 46 43
Douglas 18 17 5.4 23
Paul Spur 6 6
Coconino County Monitors
Flagstaff 47 44
Grand Canyon 49 45
Gila County Monitors
Hayden 17 16
Miami 12 11
Payson 19 18
Tonto Nat'l Monument 46 43
La Paz County Monitors
Alamo Lake - - 9 8 4.2 18
Mohave County Monitors
Bullhead City 10 9
Navajo County Monitors
Petrified Forest 48 44
Santa Cruz County Monitors
Nogales 18 17 7 29
Yavapai County Monitors
Prescott 44 41
Yuma County Monitors
Yuma 48 44 25 23 7.7 32
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 9, 2019
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 31 29
Buckeye 23 21 22 20 0.27 3
Cave Creek 33 31
Central Phoenix 22 20 27 25 0.88 10
Diablo 12.8 52 0.88 10
Durango 32 30 12.4 52
Dysart 30 28 19 18
Falcon Field 27 25
Fountain Hills 30 28
Glendale 25 23 25 23 14.4 56
Higley 22 20
Humboldt Mountain 48 44
Mesa 28 26 20 19 10.1 42 0.58 7
North Phoenix 27 25 22 20 13.5 54
Phoenix Supersite 27 25 29 27 15.4 58 0.94 11
Pinnacle Peak 36 33
South Phoenix 24 22 35 32 21.4 71 1.17 13
South Scottsdale 22 20 20 19
Tempe 21 19 21 19 10.8 45
West 43rd 47 44
West Chandler 28 26 28 26 0.86 10
West Phoenix 23 21 42 39 21.6 71 1.5 17
Zuni Hills 15 14
Pima County Monitors
22nd & Craycroft 34 31
Ajo 6 6
Children's Park Site 38 35 3.9 16
Coachline 35 32 3.7 15
Fairgrounds 43 40
Green Valley 45 42 9 8 6.2 26
Geronimo 23 21 6.3 26
Orange Grove 23 21 6 25
Rillito 35 32
Rose Elementary 38 35 4.7 20
Saguaro Monument 39 36
South Tucson 25 23
Tangerine 36 33
Pinal County Monitors
Apache Junction 23 21 12 11
Casa Grande Airport 34 31
Casa Grande Downtown 19 18 6.3 26
Combs 18 17
Eloy 20 19
Hidden Valley 54 50
Maricopa 22 20
Pinal Air Park 38 35 13 12
Pinal County Housing 20 19
Queen Valley 37 34
Stanfield 24 22
Cochise County Monitors
Chiricahua NM 46 43
Douglas 45 42 7.2 30
Paul Spur 11 10
Coconino County Monitors
Flagstaff 44 41
Grand Canyon 50 46
Gila County Monitors
Hayden 14 13
Miami 12 11
Payson 29 27
Tonto Nat'l Monument 42 39
La Paz County Monitors
Alamo Lake - - 6 6 3 13
Mohave County Monitors
Bullhead City 10 9
Navajo County Monitors
Petrified Forest 46 43
Santa Cruz County Monitors
Nogales 65 56 21.3 70
Yavapai County Monitors
Prescott 44 41
Yuma County Monitors
Yuma 35 32 31 29 12.1 51
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 8, 2019
Monitor Site Ozone PM10 PM2.5 Carbon Monoxide
ppb AQI µg/m3 AQI µg/m3 AQI ppm AQI
Maricopa County Monitors
Blue Point 43 40
Buckeye 35 32 17 16 0.28 3
Cave Creek 46 43
Central Phoenix 34 31 31 29 1.3 15
Diablo 8.4 35 0.83 9
Durango 30 28 9.1 38
Dysart 39 36 20 19
Falcon Field 41 38
Fountain Hills 40 37
Glendale 36 33 17 16 8.8 37
Higley 20 19
Humboldt Mountain 49 45
Mesa 43 40 13 12 5.5 23 0.42 5
North Phoenix 39 36 20 19 11.5 48
Phoenix Supersite 39 36 28 26 12.6 52 1.18 13
Pinnacle Peak 47 44
South Phoenix 39 36 21 19 10.9 45 1.01 11
South Scottsdale 33 31 18 17
Tempe 33 31 15 14 6.7 28
West 43rd 45 42
West Chandler 37 34 18 17 0.68 8
West Phoenix 39 36 33 31 13.1 53 1.91 22
Zuni Hills 14 13
Pima County Monitors
22nd & Craycroft 44 41
Ajo 7 6
Children's Park Site 40 37 5.7 24
Coachline 37 34 4 17
Fairgrounds 45 42
Green Valley 46 43 6 6 4.3 18
Geronimo 28 26 7.5 31
Orange Grove 26 24 7.9 33
Rillito 29 27
Rose Elementary 43 40 5.9 25
Saguaro Monument 47 44
South Tucson 27 25
Tangerine 43 40
Pinal County Monitors
Apache Junction 37 34 8 7
Casa Grande Airport 38 35
Casa Grande Downtown 25 23 6.2 26
Combs 24 22
Eloy 27 25
Hidden Valley 53 49
Maricopa 19 18
Pinal Air Park 39 36 9 8
Pinal County Housing 16 15
Queen Valley 46 43
Stanfield 20 19
Cochise County Monitors
Chiricahua NM 47 44
Douglas 19 18 3.6 15
Paul Spur 8 7
Coconino County Monitors
Flagstaff 47 44
Grand Canyon 48 44
Gila County Monitors
Hayden 11 10
Miami 15 14
Payson 30 28
Tonto Nat'l Monument 47 44
La Paz County Monitors
Alamo Lake 43 40 3 3 2.7 11
Mohave County Monitors
Bullhead City 5 5
Navajo County Monitors
Petrified Forest 46 43
Santa Cruz County Monitors
Nogales 50 46 15.9 59
Yavapai County Monitors
Prescott 43 40
Yuma County Monitors
Yuma 44 41 22 20 5.7 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