AQSQID: 040191028

Site Name: Children's Park Site

Location: Tucson (N Via Carina), AZ

Reporting: True, Located: True

Current AQI: 33.0

Tucson (N Via Carina) AZ, US: 32.2953, -110.9822

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A -2.0 μg/m3 (0) 33.0
 
July 18, 2019, 6 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 (0) 33.0
 
July 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.0 μg/m3 (8) 33.0
 
July 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
July 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
July 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.0 μg/m3 (8) 33.0
 
July 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.0 μg/m3 (8) 35.0
 
July 18, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.0 μg/m3 (4) 37.0
 
July 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 2.0 μg/m3 (8) 40.0
 
July 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 4.0 μg/m3 (17) 39.0
 
July 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
July 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 0.0 μg/m3 (0) 41.0
 
July 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 2.0 μg/m3 (8) 38.0
 
July 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 3.0 μg/m3 (12) 38.0
 
July 17, 2019, 5 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 17, 2019, 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 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 2.0 μg/m3 (8) 27.0
 
July 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
July 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.0 μg/m3 (4) 18.0
 
July 17, 2019, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 1.0 μg/m3 (4) 12.0
 
July 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 2.0 μg/m3 (8) 12.0
 
July 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 1.0 μg/m3 (4) 12.0
 
July 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 1.0 μg/m3 (4) 10.0
 
July 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 1.0 μg/m3 (4) 10.0
 
July 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 17.0
 
July 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 3.0 μg/m3 (12) 17.0
 
July 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
July 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.0 μg/m3 (4) 27.0
 
July 17, 2019, 3 a.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 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
July 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.0 μg/m3 (12) 35.0
 
July 17, 2019, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A -2.0 μg/m3 (0) 38.0
 
July 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 0.0 μg/m3 (0) 40.0
 
July 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 1.0 μg/m3 (4) 42.0
 
July 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 0.0 μg/m3 (0) 42.0
 
July 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 2.0 μg/m3 (8) 48.0
 
July 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 2.0 μg/m3 (8) 48.0
 
July 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 2.0 μg/m3 (8) 45.0
 
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
July 16, 2019, 4 p.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 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.0 μg/m3 (8) 16.0
 
July 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 1.0 μg/m3 (4) 12.0
 
July 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 4.0 μg/m3 (17) 17.0
 
July 16, 2019, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 5.0 μg/m3 (21) 21.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 3.0 μg/m3 (12) 12.0
 
July 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 2.0 μg/m3 (8) 11.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 3.0 μg/m3 (12) 13.0
 
July 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
July 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.0 μg/m3 (4) 18.0
 
July 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
July 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.0 μg/m3 (12) 31.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0
 
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.0 μg/m3 (0) 29.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 0.0 μg/m3 (0) 32.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A -1.0 μg/m3 (0) 39.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 2.0 μg/m3 (8) 42.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 3.0 μg/m3 (12) 43.0
 
July 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 2.0 μg/m3 (8) 43.0
 
July 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 5.0 μg/m3 (21) 45.0
 
July 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 8.0 μg/m3 (33) 46.0
 
July 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A N/A N/A 50.0
 
July 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 5.0 μg/m3 (21) 47.0
 
July 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 7.0 μg/m3 (29) 34.0
 
July 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
July 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
July 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
July 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 3.0 μg/m3 (12) 14.0
 
July 15, 2019, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 3.0 μg/m3 (12) 12.0
 
July 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 6.0 μg/m3 (25) 25.0
 
July 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 6.0 μg/m3 (25) 25.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 0.0 μg/m3 (0) 15.0
 
July 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.0 μg/m3 (8) 24.0
 
July 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
July 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
July 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.0 μg/m3 (0) 23.0
 
July 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
July 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.0 μg/m3 (25) 30.0
 
July 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.0 μg/m3 (25) 37.0
 
July 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 2.0 μg/m3 (8) 39.0
 
July 15, 2019, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 2.0 μg/m3 (8) 45.0
 
July 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 2.0 μg/m3 (8) 45.0
 
July 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 4.0 μg/m3 (17) 44.0
 
July 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 0.0 μg/m3 (0) 44.0
 
July 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 1.0 μg/m3 (4) 45.0
 
July 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 1.0 μg/m3 (4) 46.0
 
July 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A -1.0 μg/m3 (0) 46.0
 
July 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 1.0 μg/m3 (4) 45.0
 
July 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 4.0 μg/m3 (17) 40.0
 
July 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
July 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
July 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 2.0 μg/m3 (8) 12.0
 
July 14, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.0 μg/m3 (4) 14.0
 
July 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.0 μg/m3 (4) 18.0
 
July 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.0 μg/m3 (17) 17.0
 
July 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
July 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 4.0 μg/m3 (17) 17.0
 
July 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 2.0 μg/m3 (8) 12.0
 
July 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.0 μg/m3 (4) 18.0
 
July 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.0 μg/m3 (4) 26.0
 
July 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
July 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.0 μg/m3 (0) 30.0
 
July 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 0.0 μg/m3 (0) 33.0
 
July 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
July 14, 2019, midnight 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 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 1.0 μg/m3 (4) 39.0
 
July 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A -1.0 μg/m3 (0) 43.0
 
July 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 0.0 μg/m3 (0) 44.0
 
July 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 2.0 μg/m3 (8) 44.0
 
July 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 3.0 μg/m3 (12) 43.0
 
July 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 2.0 μg/m3 (8) 45.0
 
July 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 1.0 μg/m3 (4) 44.0
 
July 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 1.0 μg/m3 (4) 38.0
 
July 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
July 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
July 13, 2019, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
July 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
July 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
July 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.0 μg/m3 (0) 29.0
 
July 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
July 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
July 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
July 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
July 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
July 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
July 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 8.0 μg/m3 (33) 41.0
 
July 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.0 μg/m3 (8) 37.0
 
July 13, 2019, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
July 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 16.0 μg/m3 (59) 59.0
 
July 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 3.0 μg/m3 (12) 48.0
 
July 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 3.0 μg/m3 (12) 47.0
 
July 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 1.0 μg/m3 (4) 49.0
 
July 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 7.0 μg/m3 (29) 49.0
 
July 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 14.0 μg/m3 (54) 54.0
 
July 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
July 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 8.0 μg/m3 (33) 34.0
 
July 12, 2019, 1 p.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 12, 2019, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
July 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
July 12, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.0 μg/m3 (33) 37.0
 
July 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
July 12, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
July 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
July 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
July 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
July 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.0 μg/m3 (8) 33.0
 
July 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
July 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
July 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
July 12, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 4.0 μg/m3 (17) 39.0
 
July 11, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 2.0 μg/m3 (8) 45.0
 
July 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 2.0 μg/m3 (8) 42.0
 
July 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 1.0 μg/m3 (4) 41.0
 
July 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
July 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A -1.0 μg/m3 (0) 39.0
 
July 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.0 μg/m3 (12) 39.0
 
July 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
July 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
July 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 7.0 μg/m3 (29) 29.0
 
July 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
July 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
July 11, 2019, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 7.0 μg/m3 (29) 29.0
 
July 11, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
July 11, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 1.0 μg/m3 (4) 18.0
 
July 11, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.0 μg/m3 (4) 21.0
 
July 11, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.0 μg/m3 (8) 21.0