ID: 7935

AQSQID: 840450190021

Site Name: Spa-Irving St.

Added: June 16, 2020, 5:40 a.m.

Updated: Aug. 1, 2021, 3:54 a.m.

Location: N Charleston (Irving Ave), SC

Reporting: True, Located: True

Current AQI: 37.0

N Charleston (Irving Ave) SC, US: 32.836602, -79.956983

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 11.8 μg/m3 (50) 50.0
 
July 24, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 13.7 μg/m3 (55) 55.0
 
July 24, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 13.4 μg/m3 (54) 54.0
 
July 24, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 12.1 μg/m3 (51) 51.0
 
July 24, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
July 24, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 13.1 μg/m3 (54) 54.0
 
July 24, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
July 24, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
July 24, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 13.2 μg/m3 (54) 54.0
 
July 24, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 14.1 μg/m3 (56) 56.0
 
July 24, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 14.5 μg/m3 (57) 57.0
 
July 24, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 15.9 μg/m3 (59) 59.0
 
July 24, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 16.6 μg/m3 (61) 61.0
 
July 24, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 13.7 μg/m3 (55) 55.0
 
July 24, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 14.8 μg/m3 (57) 57.0
 
July 24, 2021, 3 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 17.3 μg/m3 (62) 62.0
 
July 24, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 20.0 μg/m3 (68) 68.0
 
July 24, 2021, 1 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 21.6 μg/m3 (71) 71.0
 
July 24, 2021, midnight N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 24.6 μg/m3 (78) 78.0
 
July 23, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 22.3 μg/m3 (73) 73.0
 
July 23, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 23.1 μg/m3 (75) 75.0
 
July 23, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 25.0 μg/m3 (79) 79.0
 
July 23, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 22.3 μg/m3 (73) 73.0
 
July 23, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 19.4 μg/m3 (67) 67.0
 
July 23, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 17.7 μg/m3 (63) 63.0
 
July 23, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
July 23, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 12.4 μg/m3 (52) 52.0
 
July 23, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 23, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
July 23, 2021, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
July 23, 2021, noon N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
July 23, 2021, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
July 23, 2021, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
July 23, 2021, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
July 23, 2021, 8 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 9.2 μg/m3 (39) 39.0
 
July 23, 2021, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
July 23, 2021, 6 a.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
July 23, 2021, 5 a.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A 8.5 μg/m3 (36) 36.0
 
July 23, 2021, 3 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
July 23, 2021, 2 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
July 23, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 7.5 μg/m3 (32) 32.0
 
July 23, 2021, midnight N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
July 22, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
July 22, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 22, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A -1.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2021, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
July 22, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
July 22, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
July 22, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
July 22, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 22, 2021, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
July 22, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2021, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
July 22, 2021, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
July 22, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
July 22, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 22, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 22, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
July 22, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
July 22, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
July 22, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
July 22, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
July 22, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
July 21, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 21, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 21, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 21, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
July 21, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
July 21, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
July 21, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 21, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 21, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
July 21, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
July 21, 2021, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 21, 2021, 9 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 21, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
July 21, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 21, 2021, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
July 21, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
July 21, 2021, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
July 21, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 21, 2021, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 21, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 20, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 20, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
July 20, 2021, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
July 20, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
July 20, 2021, 7 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 20, 2021, 6 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
July 20, 2021, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
July 20, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
July 20, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
July 20, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
July 20, 2021, 1 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
July 20, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
July 20, 2021, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
July 20, 2021, 10 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
July 20, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 20, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 20, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 20, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 20, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 20, 2021, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
July 20, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
July 20, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
July 20, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
July 19, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
July 19, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
July 19, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
July 19, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
July 19, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 19, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
July 19, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
July 19, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 19, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 19, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
July 19, 2021, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 19, 2021, noon N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
July 19, 2021, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
July 19, 2021, 10 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
July 19, 2021, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
July 19, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
July 19, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
July 19, 2021, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
July 19, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
July 19, 2021, 3 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
July 19, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 19, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
July 19, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
July 18, 2021, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 18, 2021, 10 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
July 18, 2021, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 7.7 μg/m3 (33) 33.0
 
July 18, 2021, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
July 18, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 18, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 18, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
July 18, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 18, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
July 18, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 18, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
July 18, 2021, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
July 18, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
July 18, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
July 18, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
July 18, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
July 18, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
July 18, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
July 18, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
July 18, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
July 18, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 17, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 17, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 17, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
July 17, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
July 17, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 17, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 17, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 17, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
July 17, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 17, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
July 17, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
July 17, 2021, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
July 17, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0