ID: 84

AQSQID: 040058001

Site Name: Grand Canyon Np

Added: April 21, 2020, 6:24 p.m.

Updated: July 25, 2021, 5:53 a.m.

Location: Grand Cyn (Hermit Rd (W Rim Dr)), AZ

Reporting: True, Located: True

Current AQI: 91.0

Grand Cyn (Hermit Rd (W Rim Dr)) AZ, US: 36.055, -112.1531

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A N/A 91.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A N/A 91.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A N/A 71.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A N/A 71.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A N/A 71.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A N/A 71.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A N/A 71.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A N/A 94.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A N/A 101.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A N/A 94.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A N/A 74.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A N/A 71.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
July 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0
 
July 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
July 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 39.0
 
July 19, 2021, noon N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0
 
July 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
July 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
July 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 19, 2021, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
July 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 18, 2021, noon N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A N/A 65.0
 
July 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
July 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
July 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
July 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
July 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
July 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
July 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0
 
July 18, 2021, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A N/A 58.0
 
July 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 50.0
 
July 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A N/A 50.0
 
July 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0