ID: 168

AQSQID: 060590007

Site Name: Anaheim

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

Updated: May 12, 2021, 12:44 a.m.

Location: Anaheim (Swest Anaheim), CA

Reporting: True, Located: True

Current AQI: 46.0

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
May 11, 2021, 11 p.m. 5.5 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) 0.17 ppb (3) 24.4 μg/m3 (23) 10.8 μg/m3 (46) 46.0
 
May 11, 2021, 10 p.m. 7.4 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (48) 0.19 ppb (3) 36.7 μg/m3 (34) 12.1 μg/m3 (51) 51.0
 
May 11, 2021, 9 p.m. 5.7 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (55) 0.21 ppb (3) 34.4 μg/m3 (32) 14.1 μg/m3 (56) 56.0
 
May 11, 2021, 8 p.m. 6.9 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (48) 0.23 ppb (3) 31.4 μg/m3 (30) 21.7 μg/m3 (72) 72.0
 
May 11, 2021, 7 p.m. 9.8 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A N/A 43.0 ppb (40) 0.24 ppb (3) 28.5 μg/m3 (27) 16.1 μg/m3 (60) 60.0
 
May 11, 2021, 6 p.m. 7.6 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) 0.23 ppb (3) 24.9 μg/m3 (24) 11.4 μg/m3 (48) 48.0
 
May 11, 2021, 5 p.m. 7.1 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) 0.22 ppb (3) 23.2 μg/m3 (22) 10.8 μg/m3 (46) 46.0
 
May 11, 2021, 4 p.m. 8.4 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 33.0 ppb (31) 0.22 ppb (3) 26.9 μg/m3 (25) 11.2 μg/m3 (47) 47.0
 
May 11, 2021, 3 p.m. 7.6 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.21 ppb (3) 20.7 μg/m3 (20) 10.7 μg/m3 (45) 45.0
 
May 11, 2021, 2 p.m. 12.0 ppb (12) 4.5 ppb (5) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) 0.18 ppb (3) 25.2 μg/m3 (24) 10.3 μg/m3 (43) 43.0
 
May 11, 2021, 1 p.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.15 ppb (2) 25.9 μg/m3 (24) 9.5 μg/m3 (40) 40.0
 
May 11, 2021, noon 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.14 ppb (2) 16.3 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
May 11, 2021, 11 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.16 ppb (3) 18.8 μg/m3 (18) 7.8 μg/m3 (33) 33.0
 
May 11, 2021, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.17 ppb (3) 21.7 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
May 11, 2021, 9 a.m. 2.3 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.14 ppb (2) 7.1 μg/m3 (7) 5.1 μg/m3 (22) 32.0
 
May 11, 2021, 8 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.14 ppb (2) 26.4 μg/m3 (25) 6.8 μg/m3 (29) 34.0
 
May 11, 2021, 7 a.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.15 ppb (2) 19.5 μg/m3 (19) 7.3 μg/m3 (31) 34.0
 
May 11, 2021, 6 a.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.15 ppb (2) 19.5 μg/m3 (19) 5.8 μg/m3 (25) 35.0
 
May 11, 2021, 5 a.m. 3.1 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.16 ppb (3) 17.8 μg/m3 (17) 9.3 μg/m3 (39) 39.0
 
May 11, 2021, 4 a.m. 2.8 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.16 ppb (3) 12.2 μg/m3 (12) 7.5 μg/m3 (32) 36.0
 
May 11, 2021, 3 a.m. 2.3 ppb (3) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 16.6 μg/m3 (16) 4.6 μg/m3 (20) 38.0
 
May 11, 2021, 2 a.m. 2.3 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.15 ppb (2) 7.8 μg/m3 (8) 7.8 μg/m3 (33) 39.0
 
May 11, 2021, 1 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) 0.15 ppb (2) 19.3 μg/m3 (18) 7.1 μg/m3 (30) 41.0
 
May 11, 2021, midnight 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.15 ppb (2) 22.7 μg/m3 (22) 4.8 μg/m3 (20) 44.0
 
May 10, 2021, 11 p.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.15 ppb (2) 9.3 μg/m3 (9) 6.3 μg/m3 (27) 43.0
 
May 10, 2021, 10 p.m. 1.7 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.15 ppb (2) 20.7 μg/m3 (20) 7.5 μg/m3 (32) 44.0
 
May 10, 2021, 9 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) 0.15 ppb (2) 21.2 μg/m3 (20) 7.8 μg/m3 (33) 44.0
 
May 10, 2021, 8 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) 0.15 ppb (2) 19.2 μg/m3 (18) 8.8 μg/m3 (37) 42.0
 
May 10, 2021, 7 p.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.16 ppb (3) 17.8 μg/m3 (17) 8.3 μg/m3 (35) 43.0
 
May 10, 2021, 6 p.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.15 ppb (2) 15.6 μg/m3 (15) 6.0 μg/m3 (25) 43.0
 
May 10, 2021, 5 p.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) 0.16 ppb (3) 18.3 μg/m3 (17) 7.8 μg/m3 (33) 42.0
 
May 10, 2021, 4 p.m. 4.2 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.18 ppb (3) 21.2 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
May 10, 2021, 3 p.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.17 ppb (3) 21.2 μg/m3 (20) 8.5 μg/m3 (36) 39.0
 
May 10, 2021, 2 p.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.17 ppb (3) 19.3 μg/m3 (18) 9.8 μg/m3 (41) 41.0
 
May 10, 2021, 1 p.m. 2.6 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.16 ppb (3) 25.5 μg/m3 (24) 8.0 μg/m3 (34) 38.0
 
May 10, 2021, noon 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.14 ppb (2) 10.8 μg/m3 (10) 6.3 μg/m3 (27) 39.0
 
May 10, 2021, 11 a.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) 0.13 ppb (2) 23.7 μg/m3 (22) 7.5 μg/m3 (32) 42.0
 
May 10, 2021, 10 a.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) 0.13 ppb (2) 22.0 μg/m3 (21) 6.5 μg/m3 (28) 41.0
 
May 10, 2021, 9 a.m. 1.1 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) 0.14 ppb (2) 21.7 μg/m3 (21) 8.5 μg/m3 (36) 42.0
 
May 10, 2021, 8 a.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) 0.14 ppb (2) 19.5 μg/m3 (19) 10.8 μg/m3 (46) 46.0
 
May 10, 2021, 7 a.m. 1.5 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 18.8 μg/m3 (18) 11.2 μg/m3 (47) 47.0
 
May 10, 2021, 6 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.14 ppb (2) 22.7 μg/m3 (22) 11.2 μg/m3 (47) 47.0
 
May 10, 2021, 5 a.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.15 ppb (2) 25.9 μg/m3 (24) 15.3 μg/m3 (58) 58.0
 
May 10, 2021, 4 a.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 24.4 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
May 10, 2021, 3 a.m. 2.9 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.15 ppb (2) 23.9 μg/m3 (23) 11.2 μg/m3 (47) 47.0
 
May 10, 2021, 2 a.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.15 ppb (2) 20.5 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
May 10, 2021, 1 a.m. 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.15 ppb (2) 17.8 μg/m3 (17) 8.3 μg/m3 (35) 42.0
 
May 10, 2021, midnight 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.15 ppb (2) 14.1 μg/m3 (14) 4.6 μg/m3 (20) 44.0
 
May 9, 2021, 11 p.m. 1.6 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.15 ppb (2) 16.8 μg/m3 (16) 7.3 μg/m3 (31) 43.0
 
May 9, 2021, 10 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) 0.15 ppb (2) 24.6 μg/m3 (23) 11.2 μg/m3 (47) 47.0
 
May 9, 2021, 9 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) 0.15 ppb (2) 23.5 μg/m3 (22) 14.6 μg/m3 (57) 57.0
 
May 9, 2021, 8 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) 0.15 ppb (2) 27.1 μg/m3 (26) 13.9 μg/m3 (55) 55.0
 
May 9, 2021, 7 p.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.16 ppb (3) 31.7 μg/m3 (30) 14.6 μg/m3 (57) 57.0
 
May 9, 2021, 6 p.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 31.5 μg/m3 (30) 11.2 μg/m3 (47) 47.0
 
May 9, 2021, 5 p.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 24.4 μg/m3 (23) 9.5 μg/m3 (40) 40.0
 
May 9, 2021, 4 p.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.15 ppb (2) 23.2 μg/m3 (22) 8.3 μg/m3 (35) 38.0
 
May 9, 2021, 3 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.2 ppb (3) 19.8 μg/m3 (19) 11.9 μg/m3 (50) 50.0
 
May 9, 2021, 2 p.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.15 ppb (2) 31.3 μg/m3 (29) 12.9 μg/m3 (53) 53.0
 
May 9, 2021, 1 p.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.15 ppb (2) 32.4 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
May 9, 2021, noon 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.14 ppb (2) 26.9 μg/m3 (25) 9.8 μg/m3 (41) 41.0
 
May 9, 2021, 11 a.m. 1.5 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.14 ppb (2) 32.7 μg/m3 (31) 9.5 μg/m3 (40) 40.0
 
May 9, 2021, 10 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.15 ppb (2) 13.4 μg/m3 (13) 6.6 μg/m3 (28) 33.0
 
May 9, 2021, 9 a.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.17 ppb (3) 20.5 μg/m3 (19) 7.8 μg/m3 (33) 34.0
 
May 9, 2021, 8 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.16 ppb (3) 21.0 μg/m3 (20) 8.2 μg/m3 (35) 35.0
 
May 9, 2021, 7 a.m. 2.7 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.16 ppb (3) 21.5 μg/m3 (20) 10.7 μg/m3 (45) 45.0
 
May 9, 2021, 6 a.m. 2.9 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.16 ppb (3) 21.5 μg/m3 (20) 11.4 μg/m3 (48) 48.0
 
May 9, 2021, 5 a.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.15 ppb (2) 21.7 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 4 a.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.15 ppb (2) 30.5 μg/m3 (29) 5.1 μg/m3 (22) 35.0
 
May 9, 2021, 3 a.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.15 ppb (2) 12.4 μg/m3 (12) 4.1 μg/m3 (18) 37.0
 
May 9, 2021, 2 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 16.9 μg/m3 (16) 4.1 μg/m3 (18) 38.0
 
May 9, 2021, 1 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.15 ppb (2) 14.1 μg/m3 (14) 3.9 μg/m3 (17) 39.0
 
May 9, 2021, midnight 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.14 ppb (2) 19.3 μg/m3 (18) 6.3 μg/m3 (27) 42.0
 
May 8, 2021, 11 p.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.15 ppb (2) 16.8 μg/m3 (16) 7.3 μg/m3 (31) 45.0
 
May 8, 2021, 10 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) 0.15 ppb (2) 15.5 μg/m3 (15) 5.8 μg/m3 (25) 46.0
 
May 8, 2021, 9 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.15 ppb (2) 20.4 μg/m3 (19) 8.8 μg/m3 (37) 45.0
 
May 8, 2021, 8 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.15 ppb (2) 20.0 μg/m3 (19) 8.8 μg/m3 (37) 45.0
 
May 8, 2021, 7 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.15 ppb (2) 17.0 μg/m3 (16) 8.5 μg/m3 (36) 43.0
 
May 8, 2021, 6 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) 0.17 ppb (3) 21.2 μg/m3 (20) 8.3 μg/m3 (35) 41.0
 
May 8, 2021, 5 p.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.16 ppb (3) 20.2 μg/m3 (19) 6.5 μg/m3 (28) 37.0
 
May 8, 2021, 4 p.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.16 ppb (3) 14.3 μg/m3 (14) 4.8 μg/m3 (20) 35.0
 
May 8, 2021, 3 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.15 ppb (2) 15.4 μg/m3 (15) 3.1 μg/m3 (13) 35.0
 
May 8, 2021, 2 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.15 ppb (2) 2.2 μg/m3 (3) 3.4 μg/m3 (15) 35.0
 
May 8, 2021, 1 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) 0.13 ppb (2) 4.4 μg/m3 (5) 5.6 μg/m3 (24) 37.0
 
May 8, 2021, noon 0.5 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 10.8 μg/m3 (10) 5.8 μg/m3 (25) 38.0
 
May 8, 2021, 11 a.m. 0.5 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 11.7 μg/m3 (11) 4.9 μg/m3 (21) 38.0
 
May 8, 2021, 10 a.m. 0.5 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 11.2 μg/m3 (11) 4.1 μg/m3 (18) 38.0
 
May 8, 2021, 9 a.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 10.8 μg/m3 (10) 3.1 μg/m3 (13) 38.0
 
May 8, 2021, 8 a.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.13 ppb (2) 10.1 μg/m3 (10) 6.3 μg/m3 (27) 38.0
 
May 8, 2021, 7 a.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) 0.13 ppb (2) 14.1 μg/m3 (14) 7.0 μg/m3 (30) 37.0
 
May 8, 2021, 6 a.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.14 ppb (2) 11.7 μg/m3 (11) 7.3 μg/m3 (31) 36.0
 
May 8, 2021, 5 a.m. 4.7 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.15 ppb (2) 12.2 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
May 8, 2021, 4 a.m. 3.7 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) 0.16 ppb (3) 11.0 μg/m3 (11) 6.6 μg/m3 (28) 37.0
 
May 8, 2021, 3 a.m. 4.0 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) 0.16 ppb (3) 9.6 μg/m3 (9) 5.3 μg/m3 (23) 37.0
 
May 8, 2021, 2 a.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) 0.15 ppb (2) 10.1 μg/m3 (10) 4.8 μg/m3 (20) 37.0
 
May 8, 2021, 1 a.m. 4.2 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.14 ppb (2) 11.4 μg/m3 (11) 6.6 μg/m3 (28) 36.0
 
May 8, 2021, midnight 3.2 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.14 ppb (2) 11.7 μg/m3 (11) 7.3 μg/m3 (31) 38.0
 
May 7, 2021, 11 p.m. 3.7 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.14 ppb (2) 11.7 μg/m3 (11) 5.8 μg/m3 (25) 38.0
 
May 7, 2021, 10 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) 0.14 ppb (2) 13.8 μg/m3 (13) 8.8 μg/m3 (37) 42.0
 
May 7, 2021, 9 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.15 ppb (2) 20.4 μg/m3 (19) 7.8 μg/m3 (33) 44.0
 
May 7, 2021, 8 p.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.15 ppb (2) 14.3 μg/m3 (14) 9.0 μg/m3 (38) 45.0
 
May 7, 2021, 7 p.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.19 ppb (3) 16.8 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
May 7, 2021, 6 p.m. 2.7 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.17 ppb (3) 26.3 μg/m3 (25) 8.5 μg/m3 (36) 40.0
 
May 7, 2021, 5 p.m. 2.8 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.16 ppb (3) 16.6 μg/m3 (16) 9.5 μg/m3 (40) 40.0
 
May 7, 2021, 4 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.16 ppb (3) 14.9 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
May 7, 2021, 3 p.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.16 ppb (3) 18.6 μg/m3 (18) 6.8 μg/m3 (29) 35.0
 
May 7, 2021, 2 p.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.16 ppb (3) 8.0 μg/m3 (8) 3.6 μg/m3 (16) 35.0
 
May 7, 2021, 1 p.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.14 ppb (2) 13.4 μg/m3 (13) 3.9 μg/m3 (17) 35.0
 
May 7, 2021, noon 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) 0.13 ppb (2) 13.9 μg/m3 (13) 4.6 μg/m3 (20) 36.0
 
May 7, 2021, 11 a.m. 0.4 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) 0.12 ppb (2) 11.5 μg/m3 (11) 4.1 μg/m3 (18) 36.0
 
May 7, 2021, 10 a.m. 0.6 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) 0.12 ppb (2) 11.9 μg/m3 (12) 7.0 μg/m3 (30) 36.0
 
May 7, 2021, 9 a.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) 0.12 ppb (2) 15.3 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
May 7, 2021, 8 a.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.12 ppb (2) 19.5 μg/m3 (19) 6.8 μg/m3 (29) 33.0
 
May 7, 2021, 7 a.m. 1.5 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.13 ppb (2) 24.4 μg/m3 (23) 5.6 μg/m3 (24) 33.0
 
May 7, 2021, 6 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 15.8 μg/m3 (15) 6.8 μg/m3 (29) 33.0
 
May 7, 2021, 5 a.m. 3.4 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.15 ppb (2) 17.8 μg/m3 (17) 6.8 μg/m3 (29) 31.0
 
May 7, 2021, 4 a.m. 2.4 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.15 ppb (2) 19.7 μg/m3 (19) 5.8 μg/m3 (25) 33.0
 
May 7, 2021, 3 a.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.14 ppb (2) 14.8 μg/m3 (14) 7.5 μg/m3 (32) 34.0
 
May 7, 2021, 2 a.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 22.2 μg/m3 (21) 6.8 μg/m3 (29) 33.0
 
May 7, 2021, 1 a.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.14 ppb (2) 14.1 μg/m3 (14) 7.3 μg/m3 (31) 35.0
 
May 7, 2021, midnight 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.14 ppb (2) 12.4 μg/m3 (12) 8.3 μg/m3 (35) 37.0
 
May 6, 2021, 11 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.14 ppb (2) 12.8 μg/m3 (12) 7.8 μg/m3 (33) 38.0
 
May 6, 2021, 10 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) 0.14 ppb (2) 15.8 μg/m3 (15) 7.1 μg/m3 (30) 42.0
 
May 6, 2021, 9 p.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.14 ppb (2) 17.3 μg/m3 (17) 8.5 μg/m3 (36) 44.0
 
May 6, 2021, 8 p.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.15 ppb (2) 19.7 μg/m3 (19) 12.2 μg/m3 (52) 52.0
 
May 6, 2021, 7 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.16 ppb (3) 33.9 μg/m3 (32) 13.6 μg/m3 (55) 55.0
 
May 6, 2021, 6 p.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.19 ppb (3) 28.3 μg/m3 (27) 17.6 μg/m3 (63) 63.0
 
May 6, 2021, 5 p.m. 4.7 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.19 ppb (3) 32.9 μg/m3 (31) 14.6 μg/m3 (57) 57.0
 
May 6, 2021, 4 p.m. 4.8 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.19 ppb (3) 32.7 μg/m3 (31) 10.8 μg/m3 (46) 46.0
 
May 6, 2021, 3 p.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.17 ppb (3) 23.4 μg/m3 (22) 11.7 μg/m3 (49) 49.0
 
May 6, 2021, 2 p.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.15 ppb (2) 20.7 μg/m3 (20) 11.4 μg/m3 (48) 48.0
 
May 6, 2021, 1 p.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 15.6 μg/m3 (15) 10.3 μg/m3 (43) 43.0
 
May 6, 2021, noon 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 14.1 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
May 6, 2021, 11 a.m. 1.1 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.13 ppb (2) 16.6 μg/m3 (16) 9.3 μg/m3 (39) 39.0
 
May 6, 2021, 10 a.m. 1.2 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 20.2 μg/m3 (19) 9.5 μg/m3 (40) 40.0
 
May 6, 2021, 9 a.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.15 ppb (2) 16.8 μg/m3 (16) 7.8 μg/m3 (33) 33.0
 
May 6, 2021, 8 a.m. 1.2 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) 0.14 ppb (2) 19.5 μg/m3 (19) 10.3 μg/m3 (43) 43.0
 
May 6, 2021, 7 a.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.13 ppb (2) 18.1 μg/m3 (17) 12.9 μg/m3 (53) 53.0
 
May 6, 2021, 6 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.14 ppb (2) 19.0 μg/m3 (18) 10.8 μg/m3 (46) 46.0
 
May 6, 2021, 5 a.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.14 ppb (2) 22.5 μg/m3 (21) 7.3 μg/m3 (31) 31.0
 
May 6, 2021, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.15 ppb (2) 17.3 μg/m3 (17) 5.1 μg/m3 (22) 30.0
 
May 6, 2021, 3 a.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.14 ppb (2) 12.1 μg/m3 (12) 6.8 μg/m3 (29) 31.0
 
May 6, 2021, 2 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.15 ppb (2) 12.7 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
May 6, 2021, 1 a.m. 7.4 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.18 ppb (3) 25.4 μg/m3 (24) 12.2 μg/m3 (52) 52.0
 
May 6, 2021, midnight 9.2 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A 39.0 ppb (37) 0.2 ppb (3) 32.4 μg/m3 (30) 12.7 μg/m3 (53) 53.0
 
May 5, 2021, 11 p.m. 8.4 ppb (8) 1.6 ppb (2) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) 0.19 ppb (3) 32.7 μg/m3 (31) 18.5 μg/m3 (65) 65.0
 
May 5, 2021, 10 p.m. 8.1 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 47.0 ppb (44) 0.19 ppb (3) 31.2 μg/m3 (29) 20.7 μg/m3 (70) 70.0
 
May 5, 2021, 9 p.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) 0.17 ppb (3) 23.4 μg/m3 (22) 11.4 μg/m3 (48) 48.0
 
May 5, 2021, 8 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) 0.16 ppb (3) 30.2 μg/m3 (28) 8.8 μg/m3 (37) 46.0
 
May 5, 2021, 7 p.m. 3.4 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) 0.18 ppb (3) 29.7 μg/m3 (28) 15.4 μg/m3 (58) 58.0
 
May 5, 2021, 6 p.m. 5.4 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (48) 0.22 ppb (3) 35.6 μg/m3 (33) 20.5 μg/m3 (69) 69.0
 
May 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.5 μg/m3 (42) 18.0 μg/m3 (64) 64.0
 
May 5, 2021, 4 p.m. 9.4 ppb (9) 2.4 ppb (3) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.28 ppb (4) 40.4 μg/m3 (38) 24.9 μg/m3 (78) 78.0
 
May 5, 2021, 3 p.m. 12.2 ppb (12) 3.3 ppb (4) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) 0.29 ppb (4) 33.6 μg/m3 (32) 22.2 μg/m3 (73) 73.0
 
May 5, 2021, 2 p.m. 15.5 ppb (15) 3.7 ppb (4) N/A 12.0 ppb (12) N/A N/A 17.0 ppb (16) 0.34 ppb (4) 34.4 μg/m3 (32) 14.1 μg/m3 (56) 56.0
 
May 5, 2021, 1 p.m. 10.1 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 21.0 ppb (20) 0.25 ppb (3) 29.0 μg/m3 (27) 19.0 μg/m3 (66) 66.0
 
May 5, 2021, noon 6.0 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) 0.2 ppb (3) 21.7 μg/m3 (21) 11.9 μg/m3 (50) 50.0
 
May 5, 2021, 11 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.16 ppb (3) 25.3 μg/m3 (24) 10.9 μg/m3 (46) 46.0
 
May 5, 2021, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.15 ppb (2) 20.5 μg/m3 (19) 9.8 μg/m3 (41) 41.0
 
May 5, 2021, 9 a.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.14 ppb (2) 26.0 μg/m3 (25) 10.3 μg/m3 (43) 43.0
 
May 5, 2021, 8 a.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.14 ppb (2) 23.7 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
May 5, 2021, 7 a.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.14 ppb (2) 27.3 μg/m3 (26) 10.5 μg/m3 (44) 44.0
 
May 5, 2021, 6 a.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.14 ppb (2) 28.5 μg/m3 (27) 8.5 μg/m3 (36) 36.0
 
May 5, 2021, 5 a.m. 2.3 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.14 ppb (2) 31.5 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
May 5, 2021, 4 a.m. 3.6 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.15 ppb (2) 28.3 μg/m3 (27) 10.3 μg/m3 (43) 43.0
 
May 5, 2021, 3 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.17 ppb (3) 26.6 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
May 5, 2021, 2 a.m. 5.2 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.17 ppb (3) 21.7 μg/m3 (21) 10.5 μg/m3 (44) 44.0
 
May 5, 2021, 1 a.m. 5.9 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) 0.18 ppb (3) 26.4 μg/m3 (25) 10.3 μg/m3 (43) 43.0
 
May 5, 2021, midnight 7.3 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (43) 0.2 ppb (3) 27.8 μg/m3 (26) 7.8 μg/m3 (33) 43.0