ID: 168

AQSQID: 060590007

Site Name: Anaheim

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

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

Location: Anaheim (Swest Anaheim), CA

Reporting: True, Located: True

Current AQI: 33.0

Anaheim (Swest Anaheim) CA, US: 33.830586, -117.938509

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 1, 2021, 2 a.m. 6.9 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) 0.17 ppb (3) 9.0 μg/m3 (9) 7.9 μg/m3 (33) 33.0
 
Aug. 1, 2021, 1 a.m. 5.9 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) 0.16 ppb (3) 14.0 μg/m3 (13) 6.7 μg/m3 (28) 35.0
 
Aug. 1, 2021, midnight 6.3 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (38) 0.15 ppb (2) 10.0 μg/m3 (10) 2.3 μg/m3 (10) 38.0
 
July 31, 2021, 11 p.m. 4.7 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (46) 0.13 ppb (2) 9.0 μg/m3 (9) 2.3 μg/m3 (10) 46.0
 
July 31, 2021, 10 p.m. 5.1 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (55) 0.16 ppb (3) 11.0 μg/m3 (11) 6.2 μg/m3 (26) 55.0
 
July 31, 2021, 9 p.m. 6.4 ppb (7) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 70.0 ppb (100) 0.21 ppb (3) 24.0 μg/m3 (23) 10.4 μg/m3 (44) 100.0
 
July 31, 2021, 8 p.m. 9.5 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 54.0 ppb (50) 0.22 ppb (3) 20.0 μg/m3 (19) 13.1 μg/m3 (54) 54.0
 
July 31, 2021, 7 p.m. 18.0 ppb (17) 4.9 ppb (5) N/A 13.0 ppb (13) N/A N/A 37.0 ppb (35) 0.26 ppb (4) 31.0 μg/m3 (29) 18.2 μg/m3 (64) 64.0
 
July 31, 2021, 6 p.m. 19.7 ppb (19) 6.1 ppb (6) N/A 14.0 ppb (14) N/A N/A 30.0 ppb (28) 0.26 ppb (4) 22.0 μg/m3 (21) 12.6 μg/m3 (53) 53.0
 
July 31, 2021, 5 p.m. 12.2 ppb (12) 3.3 ppb (4) N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) 0.27 ppb (4) 19.0 μg/m3 (18) 12.8 μg/m3 (53) 53.0
 
July 31, 2021, 4 p.m. 20.3 ppb (20) 7.1 ppb (7) N/A 13.0 ppb (13) N/A N/A 22.0 ppb (21) 0.32 ppb (4) 23.0 μg/m3 (22) 14.3 μg/m3 (56) 56.0
 
July 31, 2021, 3 p.m. 31.2 ppb (30) 12.9 ppb (13) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) 0.39 ppb (5) 27.0 μg/m3 (25) 15.8 μg/m3 (59) 59.0
 
July 31, 2021, 2 p.m. 30.0 ppb (29) 11.9 ppb (12) N/A 18.0 ppb (17) N/A N/A 8.0 ppb (8) 0.38 ppb (5) 23.0 μg/m3 (22) 13.3 μg/m3 (54) 54.0
 
July 31, 2021, 1 p.m. 24.8 ppb (24) 5.4 ppb (6) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (3) 0.32 ppb (4) 17.0 μg/m3 (16) 13.3 μg/m3 (54) 54.0
 
July 31, 2021, noon 24.4 ppb (24) 3.1 ppb (3) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 0.31 ppb (4) 24.0 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
July 31, 2021, 11 a.m. 16.5 ppb (16) 1.9 ppb (2) N/A 15.0 ppb (15) N/A N/A 6.0 ppb (6) 0.29 ppb (4) 16.0 μg/m3 (15) 7.7 μg/m3 (33) 33.0
 
July 31, 2021, 10 a.m. 14.6 ppb (14) 1.6 ppb (2) N/A 13.0 ppb (13) N/A N/A 8.0 ppb (8) 0.22 ppb (3) 10.0 μg/m3 (10) 8.2 μg/m3 (35) 35.0
 
July 31, 2021, 9 a.m. 12.9 ppb (13) 1.3 ppb (2) N/A 12.0 ppb (12) N/A N/A 10.0 ppb (10) 0.19 ppb (3) 10.0 μg/m3 (10) 9.7 μg/m3 (41) 41.0
 
July 31, 2021, 8 a.m. 13.2 ppb (13) 1.3 ppb (2) N/A 12.0 ppb (12) N/A N/A 11.0 ppb (11) 0.2 ppb (3) 13.0 μg/m3 (13) 10.9 μg/m3 (46) 46.0
 
July 31, 2021, 7 a.m. 14.5 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A N/A 12.0 ppb (12) 0.19 ppb (3) 21.0 μg/m3 (20) 7.5 μg/m3 (32) 32.0
 
July 31, 2021, 6 a.m. 12.5 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 14.0 ppb (13) 0.19 ppb (3) 16.0 μg/m3 (15) 5.8 μg/m3 (25) 25.0
 
July 31, 2021, 5 a.m. 12.1 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) 0.19 ppb (3) 19.0 μg/m3 (18) 8.5 μg/m3 (36) 36.0
 
July 31, 2021, 4 a.m. 12.4 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 17.0 ppb (16) 0.19 ppb (3) 20.0 μg/m3 (19) 9.5 μg/m3 (40) 40.0
 
July 31, 2021, 3 a.m. 12.4 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) 0.2 ppb (3) 19.0 μg/m3 (18) 7.7 μg/m3 (33) 33.0
 
July 31, 2021, 2 a.m. 11.1 ppb (11) 1.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.18 ppb (3) 19.0 μg/m3 (18) 7.9 μg/m3 (33) 33.0
 
July 31, 2021, 1 a.m. 12.0 ppb (12) 2.3 ppb (3) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) 0.19 ppb (3) 18.0 μg/m3 (17) 7.7 μg/m3 (33) 33.0
 
July 31, 2021, midnight 12.0 ppb (12) 3.2 ppb (4) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.2 ppb (3) 29.0 μg/m3 (27) 8.9 μg/m3 (38) 38.0
 
July 30, 2021, 11 p.m. 11.4 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.21 ppb (3) 34.0 μg/m3 (32) 10.9 μg/m3 (46) 46.0
 
July 30, 2021, 10 p.m. 9.9 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A N/A 51.0 ppb (48) 0.21 ppb (3) 39.0 μg/m3 (37) 10.2 μg/m3 (43) 48.0
 
July 30, 2021, 9 p.m. 15.4 ppb (15) 3.3 ppb (4) N/A 12.0 ppb (12) N/A N/A 49.0 ppb (46) 0.23 ppb (3) 36.0 μg/m3 (34) 16.5 μg/m3 (61) 61.0
 
July 30, 2021, 8 p.m. 22.1 ppb (21) 5.6 ppb (6) N/A 17.0 ppb (17) N/A N/A 40.0 ppb (38) 0.27 ppb (4) 44.0 μg/m3 (41) 14.3 μg/m3 (56) 56.0
 
July 30, 2021, 7 p.m. 20.7 ppb (20) 5.8 ppb (6) N/A 15.0 ppb (15) N/A N/A 35.0 ppb (33) 0.26 ppb (4) 32.0 μg/m3 (30) 16.3 μg/m3 (60) 60.0
 
July 30, 2021, 6 p.m. 16.1 ppb (16) 4.3 ppb (5) N/A 12.0 ppb (12) N/A N/A 36.0 ppb (34) 0.27 ppb (4) 32.0 μg/m3 (30) 17.5 μg/m3 (63) 63.0
 
July 30, 2021, 5 p.m. 17.4 ppb (17) 5.5 ppb (6) N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) 0.31 ppb (4) 36.0 μg/m3 (34) 11.9 μg/m3 (50) 50.0
 
July 30, 2021, 4 p.m. 17.6 ppb (17) 5.8 ppb (6) N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) 0.29 ppb (4) 33.0 μg/m3 (31) 17.2 μg/m3 (62) 62.0
 
July 30, 2021, 3 p.m. 19.5 ppb (19) 7.7 ppb (8) N/A 12.0 ppb (12) N/A N/A 13.0 ppb (13) 0.28 ppb (4) 24.0 μg/m3 (23) 15.3 μg/m3 (58) 58.0
 
July 30, 2021, 2 p.m. 20.9 ppb (20) 7.7 ppb (8) N/A 13.0 ppb (13) N/A N/A 8.0 ppb (8) 0.29 ppb (4) 22.0 μg/m3 (21) 15.3 μg/m3 (58) 58.0
 
July 30, 2021, 1 p.m. 18.9 ppb (18) 4.3 ppb (5) N/A 15.0 ppb (15) N/A N/A 4.0 ppb (4) 0.3 ppb (4) 21.0 μg/m3 (20) 8.2 μg/m3 (35) 35.0
 
July 30, 2021, noon 15.9 ppb (15) 2.2 ppb (3) N/A 14.0 ppb (14) N/A N/A 4.0 ppb (4) 0.26 ppb (4) 20.0 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
July 30, 2021, 11 a.m. 12.7 ppb (12) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A 9.0 ppb (9) 0.2 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 30, 2021, 10 a.m. 12.6 ppb (12) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A 9.0 ppb (9) 0.15 ppb (2) 17.0 μg/m3 (16) 6.8 μg/m3 (29) 29.0
 
July 30, 2021, 9 a.m. 10.9 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A N/A 12.0 ppb (12) 0.14 ppb (2) 18.0 μg/m3 (17) 8.0 μg/m3 (34) 34.0
 
July 30, 2021, 8 a.m. 9.4 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) 0.15 ppb (2) 14.0 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
July 30, 2021, 7 a.m. 8.2 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) 0.14 ppb (2) 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
July 30, 2021, 6 a.m. 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) 0.13 ppb (2) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 30, 2021, 5 a.m. 7.5 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.13 ppb (2) 21.0 μg/m3 (20) 6.7 μg/m3 (28) 28.0
 
July 30, 2021, 4 a.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) 0.15 ppb (2) 24.0 μg/m3 (23) 9.2 μg/m3 (39) 39.0
 
July 30, 2021, 3 a.m. 10.3 ppb (10) 1.2 ppb (2) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) 0.19 ppb (3) 30.0 μg/m3 (28) 5.7 μg/m3 (24) 28.0
 
July 30, 2021, 2 a.m. 9.1 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.2 ppb (3) 19.0 μg/m3 (18) 5.3 μg/m3 (23) 23.0
 
July 30, 2021, 1 a.m. 9.8 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 28.0 ppb (26) 0.17 ppb (3) 14.0 μg/m3 (13) 7.4 μg/m3 (31) 31.0
 
July 30, 2021, midnight 8.5 ppb (9) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) 0.15 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 31.0
 
July 29, 2021, 11 p.m. 6.9 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 17.0 μg/m3 (16) 4.8 μg/m3 (20) 38.0
 
July 29, 2021, 10 p.m. 6.6 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (42) 0.15 ppb (2) 6.0 μg/m3 (6) 9.4 μg/m3 (40) 42.0
 
July 29, 2021, 9 p.m. 15.5 ppb (15) 3.4 ppb (4) N/A 12.0 ppb (12) N/A N/A 47.0 ppb (44) 0.22 ppb (3) 36.0 μg/m3 (34) 11.4 μg/m3 (48) 48.0
 
July 29, 2021, 8 p.m. 20.3 ppb (20) 5.1 ppb (5) N/A 15.0 ppb (15) N/A N/A 40.0 ppb (38) 0.24 ppb (3) 29.0 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
July 29, 2021, 7 p.m. 17.0 ppb (17) 4.9 ppb (5) N/A 12.0 ppb (12) N/A N/A 34.0 ppb (32) 0.21 ppb (3) 24.0 μg/m3 (23) 10.7 μg/m3 (45) 45.0
 
July 29, 2021, 6 p.m. 19.8 ppb (19) 6.7 ppb (7) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) 0.22 ppb (3) 30.0 μg/m3 (28) 9.7 μg/m3 (41) 41.0
 
July 29, 2021, 5 p.m. 14.9 ppb (15) 4.6 ppb (5) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) 0.23 ppb (3) 21.0 μg/m3 (20) 9.5 μg/m3 (40) 40.0
 
July 29, 2021, 4 p.m. 18.7 ppb (18) 6.6 ppb (7) N/A 12.0 ppb (12) N/A N/A 22.0 ppb (21) 0.27 ppb (4) 16.0 μg/m3 (15) 8.4 μg/m3 (36) 36.0
 
July 29, 2021, 3 p.m. 23.7 ppb (23) 9.5 ppb (9) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.3 ppb (4) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 29, 2021, 2 p.m. 23.0 ppb (22) 8.8 ppb (9) N/A 14.0 ppb (14) N/A N/A 9.0 ppb (9) 0.28 ppb (4) 14.0 μg/m3 (13) 10.6 μg/m3 (45) 45.0
 
July 29, 2021, 1 p.m. 15.7 ppb (15) 3.1 ppb (3) N/A 13.0 ppb (13) N/A N/A 8.0 ppb (8) 0.22 ppb (3) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
July 29, 2021, noon 13.6 ppb (13) 1.6 ppb (2) N/A 12.0 ppb (12) N/A N/A 10.0 ppb (10) 0.2 ppb (3) 11.0 μg/m3 (11) 4.8 μg/m3 (20) 20.0
 
July 29, 2021, 11 a.m. 14.9 ppb (15) 1.5 ppb (2) N/A 13.0 ppb (13) N/A N/A 10.0 ppb (10) 0.21 ppb (3) 11.0 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
July 29, 2021, 10 a.m. 14.5 ppb (14) 1.4 ppb (2) N/A 13.0 ppb (13) N/A N/A 12.0 ppb (12) 0.2 ppb (3) 13.0 μg/m3 (13) 4.6 μg/m3 (20) 20.0
 
July 29, 2021, 9 a.m. 12.0 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) 0.19 ppb (3) 9.0 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
July 29, 2021, 8 a.m. 9.9 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) 0.18 ppb (3) 19.0 μg/m3 (18) 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 7 a.m. 12.6 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) 0.23 ppb (3) 22.0 μg/m3 (21) 9.2 μg/m3 (39) 39.0
 
July 29, 2021, 6 a.m. 9.9 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 23.0 ppb (22) 0.19 ppb (3) 18.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
July 29, 2021, 5 a.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.17 ppb (3) 29.0 μg/m3 (27) 9.0 μg/m3 (38) 38.0
 
July 29, 2021, 4 a.m. 10.4 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 27.0 ppb (25) 0.2 ppb (3) 23.0 μg/m3 (22) 8.5 μg/m3 (36) 36.0
 
July 29, 2021, 3 a.m. 10.1 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) 0.18 ppb (3) 10.0 μg/m3 (10) 8.9 μg/m3 (38) 38.0
 
July 29, 2021, 2 a.m. 7.9 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 38.0 ppb (36) 0.17 ppb (3) 10.0 μg/m3 (10) 6.2 μg/m3 (26) 36.0
 
July 29, 2021, 1 a.m. 8.2 ppb (8) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) 0.17 ppb (3) 11.0 μg/m3 (11) 3.1 μg/m3 (13) 39.0
 
July 29, 2021, midnight 6.8 ppb (7) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) 0.14 ppb (2) 10.0 μg/m3 (10) 4.8 μg/m3 (20) 40.0
 
July 28, 2021, 11 p.m. 8.4 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (7) N/A N/A 50.0 ppb (47) 0.17 ppb (3) 21.0 μg/m3 (20) 8.7 μg/m3 (37) 47.0
 
July 28, 2021, 10 p.m. 13.2 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (11) N/A N/A 52.0 ppb (49) 0.19 ppb (3) 26.0 μg/m3 (25) 9.7 μg/m3 (41) 49.0
 
July 28, 2021, 9 p.m. 13.0 ppb (13) 2.8 ppb (3) N/A 10.0 ppb (10) N/A N/A 50.0 ppb (47) 0.17 ppb (3) 24.0 μg/m3 (23) 9.7 μg/m3 (41) 47.0
 
July 28, 2021, 8 p.m. 14.0 ppb (14) 3.4 ppb (4) N/A 11.0 ppb (11) N/A N/A 44.0 ppb (41) 0.19 ppb (3) 21.0 μg/m3 (20) 8.7 μg/m3 (37) 41.0
 
July 28, 2021, 7 p.m. 9.8 ppb (10) 2.4 ppb (3) N/A 7.0 ppb (7) N/A N/A 45.0 ppb (42) 0.18 ppb (3) 13.0 μg/m3 (13) 9.7 μg/m3 (41) 42.0
 
July 28, 2021, 6 p.m. 17.1 ppb (17) 5.0 ppb (5) N/A 12.0 ppb (12) N/A N/A 34.0 ppb (32) 0.23 ppb (3) 25.0 μg/m3 (24) 11.4 μg/m3 (48) 48.0
 
July 28, 2021, 5 p.m. 13.9 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.26 ppb (4) 22.0 μg/m3 (21) 10.9 μg/m3 (46) 46.0
 
July 28, 2021, 4 p.m. 21.7 ppb (21) 7.8 ppb (8) N/A 14.0 ppb (14) N/A N/A 21.0 ppb (20) 0.32 ppb (4) 22.0 μg/m3 (21) 8.2 μg/m3 (35) 35.0
 
July 28, 2021, 3 p.m. 35.2 ppb (34) 16.2 ppb (16) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (10) 0.38 ppb (5) 17.0 μg/m3 (16) 7.7 μg/m3 (33) 34.0
 
July 28, 2021, 2 p.m. 36.2 ppb (35) 16.0 ppb (16) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (6) 0.35 ppb (4) 20.0 μg/m3 (19) 10.9 μg/m3 (46) 46.0
 
July 28, 2021, 1 p.m. 30.1 ppb (29) 8.5 ppb (9) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.28 ppb (4) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
July 28, 2021, noon 18.6 ppb (18) 2.8 ppb (3) N/A 16.0 ppb (16) N/A N/A 6.0 ppb (6) 0.2 ppb (3) 7.0 μg/m3 (7) 5.3 μg/m3 (23) 23.0
 
July 28, 2021, 11 a.m. 13.1 ppb (13) 1.6 ppb (2) N/A 12.0 ppb (12) N/A N/A 11.0 ppb (11) 0.18 ppb (3) 14.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
July 28, 2021, 10 a.m. 9.9 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A 14.0 ppb (13) 0.17 ppb (3) 9.0 μg/m3 (9) 9.2 μg/m3 (39) 39.0
 
July 28, 2021, 9 a.m. 12.3 ppb (12) 1.4 ppb (2) N/A 11.0 ppb (11) N/A N/A 10.0 ppb (10) 0.18 ppb (3) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
July 28, 2021, 8 a.m. 15.7 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (14) N/A N/A 10.0 ppb (10) 0.22 ppb (3) 11.0 μg/m3 (11) 5.3 μg/m3 (23) 23.0
 
July 28, 2021, 7 a.m. 14.4 ppb (14) 1.4 ppb (2) N/A 13.0 ppb (13) N/A N/A 11.0 ppb (11) 0.26 ppb (4) 12.0 μg/m3 (12) 5.5 μg/m3 (23) 23.0
 
July 28, 2021, 6 a.m. 15.0 ppb (15) 1.5 ppb (2) N/A 14.0 ppb (14) N/A N/A 11.0 ppb (11) 0.26 ppb (4) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
July 28, 2021, 5 a.m. 13.6 ppb (13) 1.4 ppb (2) N/A 12.0 ppb (12) N/A N/A 17.0 ppb (16) 0.25 ppb (3) 24.0 μg/m3 (23) 10.9 μg/m3 (46) 46.0
 
July 28, 2021, 4 a.m. 14.5 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A N/A 17.0 ppb (16) 0.23 ppb (3) 19.0 μg/m3 (18) 7.7 μg/m3 (33) 33.0
 
July 28, 2021, 3 a.m. 10.9 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 22.0 ppb (21) 0.19 ppb (3) 13.0 μg/m3 (13) 4.3 μg/m3 (18) 21.0
 
July 28, 2021, 2 a.m. 9.1 ppb (9) 1.3 ppb (2) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.19 ppb (3) 11.0 μg/m3 (11) 3.5 μg/m3 (15) 29.0
 
July 28, 2021, 1 a.m. 8.2 ppb (8) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 38.0 ppb (36) 0.19 ppb (3) 22.0 μg/m3 (21) 3.3 μg/m3 (14) 36.0
 
July 28, 2021, midnight 7.3 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (42) 0.19 ppb (3) 14.0 μg/m3 (13) 4.3 μg/m3 (18) 42.0
 
July 27, 2021, 11 p.m. 7.0 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) 0.18 ppb (3) 22.0 μg/m3 (21) 7.7 μg/m3 (33) 46.0
 
July 27, 2021, 10 p.m. 8.9 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A N/A 48.0 ppb (45) 0.18 ppb (3) 16.0 μg/m3 (15) 9.9 μg/m3 (42) 45.0
 
July 27, 2021, 9 p.m. 8.3 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (46) 0.18 ppb (3) 25.0 μg/m3 (24) 9.7 μg/m3 (41) 46.0
 
July 27, 2021, 8 p.m. 9.2 ppb (9) 2.2 ppb (3) N/A 7.0 ppb (7) N/A N/A 46.0 ppb (43) 0.18 ppb (3) 21.0 μg/m3 (20) 9.7 μg/m3 (41) 43.0
 
July 27, 2021, 7 p.m. 10.6 ppb (10) 2.6 ppb (3) N/A 8.0 ppb (8) N/A N/A 44.0 ppb (41) 0.22 ppb (3) 28.0 μg/m3 (26) 17.2 μg/m3 (62) 62.0
 
July 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 20.6 μg/m3 (69) 69.0
 
July 27, 2021, 5 p.m. 15.3 ppb (15) 5.3 ppb (5) N/A 10.0 ppb (10) N/A N/A 25.0 ppb (24) 0.26 ppb (4) 26.0 μg/m3 (25) 12.1 μg/m3 (51) 51.0
 
July 27, 2021, 4 p.m. 14.4 ppb (14) 4.7 ppb (5) N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.24 ppb (3) 32.0 μg/m3 (30) 20.9 μg/m3 (70) 70.0
 
July 27, 2021, 3 p.m. 15.3 ppb (15) 4.2 ppb (4) N/A 11.0 ppb (11) N/A N/A 17.0 ppb (16) 0.26 ppb (4) 16.0 μg/m3 (15) 9.5 μg/m3 (40) 40.0
 
July 27, 2021, 2 p.m. 15.6 ppb (15) 3.5 ppb (4) N/A 12.0 ppb (12) N/A N/A 13.0 ppb (13) 0.23 ppb (3) 21.0 μg/m3 (20) 15.5 μg/m3 (59) 59.0
 
July 27, 2021, 1 p.m. 13.2 ppb (13) 2.2 ppb (3) N/A 11.0 ppb (11) N/A N/A 14.0 ppb (13) 0.21 ppb (3) 28.0 μg/m3 (26) 24.3 μg/m3 (77) 77.0
 
July 27, 2021, noon 18.4 ppb (18) 2.9 ppb (3) N/A 15.0 ppb (15) N/A N/A 8.0 ppb (8) 0.25 ppb (3) 22.0 μg/m3 (21) 15.1 μg/m3 (58) 58.0
 
July 27, 2021, 11 a.m. 16.3 ppb (16) 2.3 ppb (3) N/A 14.0 ppb (14) N/A N/A 10.0 ppb (10) 0.22 ppb (3) 19.0 μg/m3 (18) 14.6 μg/m3 (57) 57.0
 
July 27, 2021, 10 a.m. 16.6 ppb (16) 1.9 ppb (2) N/A 15.0 ppb (15) N/A N/A 9.0 ppb (9) 0.19 ppb (3) 13.0 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
July 27, 2021, 9 a.m. 15.4 ppb (15) 1.6 ppb (2) N/A 14.0 ppb (14) N/A N/A 10.0 ppb (10) 0.22 ppb (3) 14.0 μg/m3 (13) 15.1 μg/m3 (58) 58.0
 
July 27, 2021, 8 a.m. 15.9 ppb (15) 1.7 ppb (2) N/A 14.0 ppb (14) N/A N/A 9.0 ppb (9) 0.23 ppb (3) 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 27, 2021, 7 a.m. 11.9 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 15.0 ppb (14) 0.15 ppb (2) 14.0 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
July 27, 2021, 6 a.m. 5.8 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) 0.12 ppb (2) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
July 27, 2021, 5 a.m. 5.2 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) 0.1 ppb (2) 12.0 μg/m3 (12) 9.5 μg/m3 (40) 40.0
 
July 27, 2021, 4 a.m. 6.6 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (21) 0.12 ppb (2) 23.0 μg/m3 (22) 10.7 μg/m3 (45) 45.0
 
July 27, 2021, 3 a.m. 5.7 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) 0.12 ppb (2) 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 27, 2021, 2 a.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.12 ppb (2) 10.0 μg/m3 (10) 8.9 μg/m3 (38) 38.0
 
July 27, 2021, 1 a.m. 4.3 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.12 ppb (2) 4.0 μg/m3 (4) 10.7 μg/m3 (45) 45.0
 
July 27, 2021, midnight 4.3 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.12 ppb (2) 2.0 μg/m3 (2) 10.7 μg/m3 (45) 45.0
 
July 26, 2021, 11 p.m. 5.1 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.13 ppb (2) 9.0 μg/m3 (9) 10.4 μg/m3 (44) 44.0
 
July 26, 2021, 10 p.m. 5.6 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.15 ppb (2) 18.0 μg/m3 (17) 11.7 μg/m3 (49) 49.0
 
July 26, 2021, 9 p.m. 6.1 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.16 ppb (3) 14.0 μg/m3 (13) 11.8 μg/m3 (50) 50.0
 
July 26, 2021, 8 p.m. 8.5 ppb (9) 2.5 ppb (3) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) 0.17 ppb (3) 18.0 μg/m3 (17) 7.2 μg/m3 (31) 31.0
 
July 26, 2021, 7 p.m. 10.9 ppb (11) 3.3 ppb (4) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.17 ppb (3) 10.0 μg/m3 (10) 7.2 μg/m3 (31) 31.0
 
July 26, 2021, 6 p.m. 21.4 ppb (21) 8.3 ppb (8) N/A 13.0 ppb (13) N/A N/A 17.0 ppb (16) 0.26 ppb (4) 24.0 μg/m3 (23) 11.3 μg/m3 (48) 48.0
 
July 26, 2021, 5 p.m. 20.9 ppb (20) 7.3 ppb (7) N/A 14.0 ppb (14) N/A N/A 13.0 ppb (13) 0.31 ppb (4) 23.0 μg/m3 (22) 15.3 μg/m3 (58) 58.0
 
July 26, 2021, 4 p.m. 19.2 ppb (19) 6.2 ppb (6) N/A 13.0 ppb (13) N/A N/A 11.0 ppb (11) 0.28 ppb (4) 18.0 μg/m3 (17) 14.6 μg/m3 (57) 57.0
 
July 26, 2021, 3 p.m. 16.8 ppb (16) 4.8 ppb (5) N/A 12.0 ppb (12) N/A N/A 9.0 ppb (9) 0.25 ppb (3) 17.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
July 26, 2021, 2 p.m. 12.6 ppb (12) 4.1 ppb (4) N/A 9.0 ppb (9) N/A N/A 12.0 ppb (12) 0.21 ppb (3) 16.0 μg/m3 (15) 8.2 μg/m3 (35) 35.0
 
July 26, 2021, 1 p.m. 8.9 ppb (9) 1.6 ppb (2) N/A 7.0 ppb (7) N/A N/A 13.0 ppb (13) 0.16 ppb (3) 13.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
July 26, 2021, noon 9.2 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A 11.0 ppb (11) 0.2 ppb (3) 10.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
July 26, 2021, 11 a.m. 11.4 ppb (11) 1.5 ppb (2) N/A 10.0 ppb (10) N/A N/A 12.0 ppb (12) 0.21 ppb (3) 18.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
July 26, 2021, 10 a.m. 9.6 ppb (10) 1.3 ppb (2) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) 0.19 ppb (3) 11.0 μg/m3 (11) 10.7 μg/m3 (45) 45.0
 
July 26, 2021, 9 a.m. 9.5 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) 0.14 ppb (2) 12.0 μg/m3 (12) 12.8 μg/m3 (53) 53.0
 
July 26, 2021, 8 a.m. 7.7 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) 0.12 ppb (2) 10.0 μg/m3 (10) 11.1 μg/m3 (47) 47.0
 
July 26, 2021, 7 a.m. 6.6 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) 0.12 ppb (2) 9.0 μg/m3 (9) 10.9 μg/m3 (46) 46.0
 
July 26, 2021, 6 a.m. 7.6 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) 0.13 ppb (2) 17.0 μg/m3 (16) 7.7 μg/m3 (33) 33.0
 
July 26, 2021, 5 a.m. 7.9 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) 0.14 ppb (2) 17.0 μg/m3 (16) 6.3 μg/m3 (27) 27.0
 
July 26, 2021, 4 a.m. 6.3 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) 0.13 ppb (2) 18.0 μg/m3 (17) 10.6 μg/m3 (45) 45.0
 
July 26, 2021, 3 a.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.13 ppb (2) 24.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
July 26, 2021, 2 a.m. 5.3 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.13 ppb (2) 12.0 μg/m3 (12) 6.7 μg/m3 (28) 28.0
 
July 26, 2021, 1 a.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.11 ppb (2) 14.0 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
July 26, 2021, midnight 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.11 ppb (2) 12.0 μg/m3 (12) 8.2 μg/m3 (35) 36.0
 
July 25, 2021, 11 p.m. 2.8 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.11 ppb (2) 13.0 μg/m3 (13) 7.2 μg/m3 (31) 37.0
 
July 25, 2021, 10 p.m. 3.4 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.11 ppb (2) 17.0 μg/m3 (16) 8.7 μg/m3 (37) 38.0
 
July 25, 2021, 9 p.m. 3.7 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.12 ppb (2) 10.0 μg/m3 (10) 10.2 μg/m3 (43) 43.0
 
July 25, 2021, 8 p.m. 3.5 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.13 ppb (2) 17.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
July 25, 2021, 7 p.m. 3.6 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.13 ppb (2) 21.0 μg/m3 (20) 11.6 μg/m3 (49) 49.0
 
July 25, 2021, 6 p.m. 3.5 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.14 ppb (2) 6.0 μg/m3 (6) 11.3 μg/m3 (48) 48.0
 
July 25, 2021, 5 p.m. 4.1 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.15 ppb (2) 16.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
July 25, 2021, 4 p.m. 4.6 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) 0.13 ppb (2) 19.0 μg/m3 (18) 15.0 μg/m3 (58) 58.0
 
July 25, 2021, 3 p.m. 4.8 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) 0.12 ppb (2) 14.0 μg/m3 (13) 10.9 μg/m3 (46) 46.0
 
July 25, 2021, 2 p.m. 4.8 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.11 ppb (2) 13.0 μg/m3 (13) 11.1 μg/m3 (47) 47.0
 
July 25, 2021, 1 p.m. 6.5 ppb (7) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) 0.13 ppb (2) 18.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
July 25, 2021, noon 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (19) 0.13 ppb (2) 19.0 μg/m3 (18) 8.7 μg/m3 (37) 37.0
 
July 25, 2021, 11 a.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) 0.1 ppb (2) 20.0 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
July 25, 2021, 10 a.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) 0.11 ppb (2) 18.0 μg/m3 (17) 12.1 μg/m3 (51) 51.0
 
July 25, 2021, 9 a.m. 3.6 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) 0.1 ppb (2) 23.0 μg/m3 (22) 16.5 μg/m3 (61) 61.0
 
July 25, 2021, 8 a.m. 3.5 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) 0.1 ppb (2) 18.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
July 25, 2021, 7 a.m. 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) 0.1 ppb (2) 22.0 μg/m3 (21) 9.7 μg/m3 (41) 41.0
 
July 25, 2021, 6 a.m. 4.8 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) 0.11 ppb (2) 15.0 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
July 25, 2021, 5 a.m. 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.1 ppb (2) 16.0 μg/m3 (15) 10.2 μg/m3 (43) 43.0
 
July 25, 2021, 4 a.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.11 ppb (2) 28.0 μg/m3 (26) 12.6 μg/m3 (53) 53.0
 
July 25, 2021, 3 a.m. 5.5 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.11 ppb (2) 30.0 μg/m3 (28) 12.6 μg/m3 (53) 53.0