ID: 7881

AQSQID: 840040059999

Site Name: Grand Canyon Ozone Bench

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

Updated: July 14, 2020, 1:37 a.m.

Location: Grand Cyn (Mather Point Amphitheater), AZ

Reporting: True, Located: True

Current AQI: 39.0

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
July 14, 2020, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.8 μg/m3 (16) 39.0
 
July 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
July 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.1 μg/m3 (17) 38.0
 
July 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 20.9 μg/m3 (69) 69.0
 
July 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 6.4 μg/m3 (27) 39.0
 
July 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 6.3 μg/m3 (26) 39.0
 
July 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 6.4 μg/m3 (27) 39.0
 
July 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 6.2 μg/m3 (26) 39.0
 
July 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.2 μg/m3 (26) 37.0
 
July 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.1 μg/m3 (25) 35.0
 
July 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.7 μg/m3 (24) 33.0
 
July 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 5.3 μg/m3 (22) 32.0
 
July 13, 2020, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.1 μg/m3 (21) 31.0
 
July 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
July 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.1 μg/m3 (21) 30.0
 
July 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.3 μg/m3 (22) 30.0
 
July 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.2 μg/m3 (22) 31.0
 
July 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.2 μg/m3 (22) 33.0
 
July 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.2 μg/m3 (22) 33.0
 
July 13, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.6 μg/m3 (19) 33.0
 
July 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.6 μg/m3 (19) 34.0
 
July 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.8 μg/m3 (20) 33.0
 
July 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.8 μg/m3 (20) 32.0
 
July 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.7 μg/m3 (20) 34.0
 
July 13, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.8 μg/m3 (20) 34.0
 
July 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.9 μg/m3 (25) 34.0
 
July 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.3 μg/m3 (26) 35.0
 
July 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.6 μg/m3 (23) 35.0
 
July 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.1 μg/m3 (25) 35.0
 
July 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.1 μg/m3 (25) 35.0
 
July 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.9 μg/m3 (25) 33.0
 
July 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 5.8 μg/m3 (24) 32.0
 
July 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.7 μg/m3 (24) 32.0
 
July 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.7 μg/m3 (24) 34.0
 
July 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.2 μg/m3 (22) 32.0
 
July 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.2 μg/m3 (22) 35.0
 
July 12, 2020, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.3 μg/m3 (22) 35.0
 
July 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.2 μg/m3 (22) 35.0
 
July 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.1 μg/m3 (21) 34.0
 
July 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.2 μg/m3 (22) 34.0
 
July 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.3 μg/m3 (22) 34.0
 
July 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.3 μg/m3 (22) 34.0
 
July 12, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.4 μg/m3 (23) 34.0
 
July 12, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.2 μg/m3 (22) 34.0
 
July 12, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.9 μg/m3 (20) 33.0
 
July 12, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.3 μg/m3 (18) 33.0
 
July 12, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.9 μg/m3 (20) 33.0
 
July 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.3 μg/m3 (22) 32.0
 
July 12, 2020, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.9 μg/m3 (25) 32.0
 
July 11, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.5 μg/m3 (23) 34.0
 
July 11, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.2 μg/m3 (22) 33.0
 
July 11, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.4 μg/m3 (23) 34.0
 
July 11, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.3 μg/m3 (22) 35.0
 
July 11, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.5 μg/m3 (23) 34.0
 
July 11, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.6 μg/m3 (23) 34.0
 
July 11, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.5 μg/m3 (23) 33.0
 
July 11, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.4 μg/m3 (23) 32.0
 
July 11, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.4 μg/m3 (23) 35.0
 
July 11, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.2 μg/m3 (22) 35.0
 
July 11, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.3 μg/m3 (22) 36.0
 
July 11, 2020, noon N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.3 μg/m3 (22) 38.0
 
July 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
July 11, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 5.1 μg/m3 (21) 39.0
 
July 11, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
July 11, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
July 11, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
July 11, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
July 11, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
July 11, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.7 μg/m3 (20) 37.0
 
July 11, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.3 μg/m3 (18) 37.0
 
July 11, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
July 11, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.0 μg/m3 (12) 37.0
 
July 11, 2020, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
July 10, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.3 μg/m3 (14) 32.0
 
July 10, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.5 μg/m3 (15) 32.0
 
July 10, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.9 μg/m3 (16) 32.0
 
July 10, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
July 10, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
July 10, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.9 μg/m3 (16) 33.0
 
July 10, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.8 μg/m3 (16) 33.0
 
July 10, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
July 10, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.9 μg/m3 (16) 32.0
 
July 10, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.6 μg/m3 (15) 30.0
 
July 10, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
July 10, 2020, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.7 μg/m3 (24) 29.0
 
July 10, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
July 10, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.2 μg/m3 (13) 30.0
 
July 10, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.1 μg/m3 (13) 31.0
 
July 10, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
July 10, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
July 10, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.5 μg/m3 (10) 32.0
 
July 10, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.7 μg/m3 (11) 32.0
 
July 10, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.8 μg/m3 (12) 32.0
 
July 10, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.8 μg/m3 (12) 34.0
 
July 10, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
July 10, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.3 μg/m3 (22) 35.0
 
July 10, 2020, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 9.2 μg/m3 (38) 38.0
 
July 9, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 19.8 μg/m3 (67) 67.0
 
July 9, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 17.8 μg/m3 (62) 62.0
 
July 9, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.2 μg/m3 (22) 36.0
 
July 9, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
July 9, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
July 9, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
July 9, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.2 μg/m3 (22) 36.0
 
July 9, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.3 μg/m3 (22) 35.0
 
July 9, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.0 μg/m3 (21) 37.0
 
July 9, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.0 μg/m3 (17) 36.0
 
July 9, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.9 μg/m3 (8) 34.0
 
July 9, 2020, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 9, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.6 μg/m3 (23) 33.0
 
July 9, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.1 μg/m3 (9) 33.0
 
July 9, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
July 9, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.3 μg/m3 (5) 31.0
 
July 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.3 μg/m3 (5) 31.0
 
July 9, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 2.7 μg/m3 (11) 30.0
 
July 9, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.9 μg/m3 (16) 32.0
 
July 9, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.9 μg/m3 (12) 34.0
 
July 9, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 14.6 μg/m3 (56) 56.0
 
July 9, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 21.2 μg/m3 (70) 70.0
 
July 8, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 8, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
July 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
July 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.8 μg/m3 (12) 35.0
 
July 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.8 μg/m3 (12) 35.0
 
July 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.8 μg/m3 (12) 33.0
 
July 8, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
July 8, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.7 μg/m3 (15) 32.0
 
July 8, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
July 8, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.1 μg/m3 (13) 33.0
 
July 8, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.5 μg/m3 (6) 31.0
 
July 8, 2020, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.6 μg/m3 (11) 29.0
 
July 8, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
July 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
July 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.8 μg/m3 (16) 27.0
 
July 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.7 μg/m3 (24) 29.0
 
July 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 11.3 μg/m3 (47) 47.0
 
July 8, 2020, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.4 μg/m3 (14) 32.0
 
July 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.0 μg/m3 (12) 32.0
 
July 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
July 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
July 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.5 μg/m3 (6) 32.0
 
July 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.6 μg/m3 (7) 33.0
 
July 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.5 μg/m3 (10) 37.0
 
July 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
July 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.5 μg/m3 (10) 38.0
 
July 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 1.6 μg/m3 (7) 36.0
 
July 7, 2020, noon N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
July 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.1 μg/m3 (5) 34.0
 
July 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.0 μg/m3 (4) 33.0
 
July 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.1 μg/m3 (5) 32.0
 
July 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.3 μg/m3 (5) 30.0
 
July 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
July 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.4 μg/m3 (6) 31.0
 
July 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.8 μg/m3 (8) 29.0
 
July 7, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.9 μg/m3 (8) 28.0
 
July 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
July 7, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.8 μg/m3 (8) 30.0
 
July 7, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.7 μg/m3 (7) 31.0
 
July 7, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.5 μg/m3 (6) 30.0
 
July 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.4 μg/m3 (6) 30.0
 
July 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
July 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.2 μg/m3 (5) 29.0
 
July 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.1 μg/m3 (5) 31.0
 
July 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.0 μg/m3 (4) 31.0