ID: 7881

AQSQID: 840040059999

Site Name: Grand Canyon Ozone Bench

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

Updated: Sept. 25, 2020, 2:40 p.m.

Location: Grand Cyn (Mather Point Amphitheater), AZ

Reporting: True, Located: True

Current AQI: 36.0

Grand Cyn (Mather Point Amphitheater) AZ, US: 36.060444, -112.107028

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 8.1 μg/m3 (34) 36.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 8.1 μg/m3 (34) 36.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.2 μg/m3 (34) 37.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.4 μg/m3 (35) 37.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 8.4 μg/m3 (35) 38.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 12.7 μg/m3 (51) 51.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 13.5 μg/m3 (53) 53.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 13.7 μg/m3 (54) 54.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 12.8 μg/m3 (52) 52.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 12.6 μg/m3 (51) 51.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 14.9 μg/m3 (56) 56.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 14.5 μg/m3 (55) 55.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 15.3 μg/m3 (57) 57.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 15.8 μg/m3 (58) 58.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 16.5 μg/m3 (60) 60.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 16.9 μg/m3 (60) 60.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 16.6 μg/m3 (60) 60.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 16.5 μg/m3 (60) 60.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 17.1 μg/m3 (61) 61.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 17.1 μg/m3 (61) 61.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 18.2 μg/m3 (63) 63.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 18.4 μg/m3 (64) 64.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 18.4 μg/m3 (64) 64.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 18.3 μg/m3 (63) 63.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 18.7 μg/m3 (64) 64.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 20.4 μg/m3 (68) 68.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 16.2 μg/m3 (59) 59.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 13.1 μg/m3 (52) 52.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 10.8 μg/m3 (45) 45.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 11.7 μg/m3 (49) 49.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 10.9 μg/m3 (45) 45.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 11.3 μg/m3 (47) 47.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 5.9 μg/m3 (25) 39.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 9.4 μg/m3 (39) 39.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 13.6 μg/m3 (53) 53.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 12.7 μg/m3 (51) 51.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 11.7 μg/m3 (49) 49.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 12.3 μg/m3 (51) 51.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 9.1 μg/m3 (38) 39.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 6.3 μg/m3 (26) 41.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 9.2 μg/m3 (38) 41.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 13.8 μg/m3 (54) 54.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 17.5 μg/m3 (62) 62.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 17.8 μg/m3 (62) 62.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 17.6 μg/m3 (62) 62.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 17.8 μg/m3 (62) 62.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 16.3 μg/m3 (59) 59.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 16.2 μg/m3 (59) 59.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 17.9 μg/m3 (63) 63.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 18.4 μg/m3 (64) 64.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 18.1 μg/m3 (63) 63.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 18.1 μg/m3 (63) 63.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 16.3 μg/m3 (59) 59.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 15.4 μg/m3 (57) 57.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 16.2 μg/m3 (59) 59.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 17.6 μg/m3 (62) 62.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 15.5 μg/m3 (57) 57.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 14.1 μg/m3 (54) 54.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 13.9 μg/m3 (54) 54.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 14.3 μg/m3 (55) 55.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 14.1 μg/m3 (54) 54.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 13.8 μg/m3 (54) 54.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 15.7 μg/m3 (58) 58.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 16.6 μg/m3 (60) 60.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 16.1 μg/m3 (59) 59.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 15.7 μg/m3 (58) 58.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 15.6 μg/m3 (58) 58.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 15.5 μg/m3 (57) 57.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 15.5 μg/m3 (57) 57.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 16.3 μg/m3 (59) 59.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 16.1 μg/m3 (59) 59.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 15.8 μg/m3 (58) 58.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 15.7 μg/m3 (58) 58.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 18.2 μg/m3 (63) 63.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 17.1 μg/m3 (61) 61.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 17.5 μg/m3 (62) 62.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 19.8 μg/m3 (67) 67.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 20.8 μg/m3 (69) 69.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 21.3 μg/m3 (70) 70.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 20.6 μg/m3 (68) 68.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 19.0 μg/m3 (65) 65.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 17.1 μg/m3 (61) 61.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A N/A 16.1 μg/m3 (59) 59.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) N/A N/A 16.2 μg/m3 (59) 59.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 16.3 μg/m3 (59) 59.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 15.8 μg/m3 (58) 58.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 16.3 μg/m3 (59) 59.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 16.1 μg/m3 (59) 59.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 16.1 μg/m3 (59) 59.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 19.7 μg/m3 (66) 66.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 21.1 μg/m3 (69) 69.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 21.3 μg/m3 (70) 70.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 17.6 μg/m3 (62) 62.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 14.1 μg/m3 (54) 54.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 13.7 μg/m3 (54) 54.0