AQSQID: 060590007

Site Name: Anaheim

Location: Anaheim (Swest Anaheim), CA

Reporting: True, Located: True

Current AQI: 30.0

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
April 2, 2020, 1 p.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.16 ppb (2) 15.0 μg/m3 (14) 7.3 μg/m3 (30) 30.0
 
April 2, 2020, noon 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) 0.15 ppb (2) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
April 2, 2020, 11 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.13 ppb (1) 12.0 μg/m3 (11) 6.8 μg/m3 (28) 28.0
 
April 2, 2020, 10 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.12 ppb (1) 21.0 μg/m3 (19) 6.1 μg/m3 (25) 25.0
 
April 2, 2020, 9 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) 0.12 ppb (1) 15.0 μg/m3 (14) 6.8 μg/m3 (28) 28.0
 
April 2, 2020, 8 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.12 ppb (1) 17.0 μg/m3 (15) 7.5 μg/m3 (31) 31.0
 
April 2, 2020, 7 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.12 ppb (1) 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
April 2, 2020, 6 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.12 ppb (1) 16.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
April 2, 2020, 5 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.13 ppb (1) 17.0 μg/m3 (15) 6.6 μg/m3 (28) 28.0
 
April 2, 2020, 4 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.14 ppb (2) 17.0 μg/m3 (15) 6.8 μg/m3 (28) 28.0
 
April 2, 2020, 3 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
April 2, 2020, 2 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.14 ppb (2) 19.0 μg/m3 (17) 6.1 μg/m3 (25) 26.0
 
April 2, 2020, 1 a.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.14 ppb (2) 11.0 μg/m3 (10) 4.9 μg/m3 (20) 28.0
 
April 2, 2020, midnight 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.15 ppb (2) 15.0 μg/m3 (14) 7.3 μg/m3 (30) 31.0
 
April 1, 2020, 11 p.m. 2.2 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.15 ppb (2) 15.0 μg/m3 (14) 6.8 μg/m3 (28) 32.0
 
April 1, 2020, 10 p.m. 2.4 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.15 ppb (2) 14.0 μg/m3 (13) 4.4 μg/m3 (18) 32.0
 
April 1, 2020, 9 p.m. 2.2 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.15 ppb (2) 15.0 μg/m3 (14) 5.8 μg/m3 (24) 32.0
 
April 1, 2020, 8 p.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.16 ppb (2) 12.0 μg/m3 (11) 8.0 μg/m3 (33) 35.0
 
April 1, 2020, 7 p.m. 4.3 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 19.0 μg/m3 (17) 9.6 μg/m3 (40) 40.0
 
April 1, 2020, 6 p.m. 5.7 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.21 ppb (2) 16.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
April 1, 2020, 5 p.m. 11.1 ppb (10) 3.3 ppb (3) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) 0.27 ppb (3) 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
April 1, 2020, 4 p.m. 16.5 ppb (15) 5.5 ppb (5) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) 0.31 ppb (3) 24.0 μg/m3 (22) 11.2 μg/m3 (47) 47.0
 
April 1, 2020, 3 p.m. 18.8 ppb (17) 5.7 ppb (5) N/A 13.0 ppb (12) N/A N/A 18.0 ppb (14) 0.32 ppb (4) 20.0 μg/m3 (18) 12.2 μg/m3 (50) 50.0
 
April 1, 2020, 2 p.m. 18.1 ppb (17) 3.0 ppb (3) N/A 15.0 ppb (14) N/A N/A 14.0 ppb (11) 0.31 ppb (3) 18.0 μg/m3 (16) 9.8 μg/m3 (41) 41.0
 
April 1, 2020, 1 p.m. 5.6 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.19 ppb (2) 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
April 1, 2020, noon 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.19 ppb (2) 11.0 μg/m3 (10) 7.3 μg/m3 (30) 30.0
 
April 1, 2020, 11 a.m. 7.4 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) 0.22 ppb (2) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
April 1, 2020, 10 a.m. 6.7 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.21 ppb (2) 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
April 1, 2020, 9 a.m. 6.5 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.22 ppb (2) 13.0 μg/m3 (12) 4.1 μg/m3 (17) 21.0
 
April 1, 2020, 8 a.m. 5.4 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.2 ppb (2) 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
April 1, 2020, 7 a.m. 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.2 ppb (2) 15.0 μg/m3 (14) 10.7 μg/m3 (45) 45.0
 
April 1, 2020, 6 a.m. 8.6 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.23 ppb (3) 23.0 μg/m3 (21) 10.3 μg/m3 (43) 43.0
 
April 1, 2020, 5 a.m. 10.4 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) 0.25 ppb (3) 27.0 μg/m3 (25) 10.7 μg/m3 (45) 45.0
 
April 1, 2020, 4 a.m. 12.1 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 36.0 ppb (28) 0.27 ppb (3) 22.0 μg/m3 (20) 10.9 μg/m3 (45) 45.0
 
April 1, 2020, 3 a.m. 12.4 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 39.0 ppb (30) 0.26 ppb (3) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
April 1, 2020, 2 a.m. 14.4 ppb (13) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 42.0 ppb (32) 0.27 ppb (3) 22.0 μg/m3 (20) 7.5 μg/m3 (31) 32.0
 
April 1, 2020, 1 a.m. 12.4 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 44.0 ppb (34) 0.26 ppb (3) 17.0 μg/m3 (15) 5.1 μg/m3 (21) 34.0
 
April 1, 2020, midnight 10.2 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 50.0 ppb (38) 0.25 ppb (3) 17.0 μg/m3 (15) 3.9 μg/m3 (16) 38.0
 
March 31, 2020, 11 p.m. 7.3 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) 0.21 ppb (2) 14.0 μg/m3 (13) 4.2 μg/m3 (18) 38.0
 
March 31, 2020, 10 p.m. 7.4 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 14.0 μg/m3 (13) 7.3 μg/m3 (30) 38.0
 
March 31, 2020, 9 p.m. 16.8 ppb (16) 3.1 ppb (3) N/A 14.0 ppb (13) N/A N/A 48.0 ppb (37) 0.31 ppb (3) 26.0 μg/m3 (24) 10.1 μg/m3 (42) 42.0
 
March 31, 2020, 8 p.m. 21.3 ppb (20) 4.8 ppb (4) N/A 16.0 ppb (15) N/A N/A 42.0 ppb (32) 0.39 ppb (4) 35.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 7 p.m. 28.7 ppb (27) 8.0 ppb (7) N/A 21.0 ppb (19) N/A N/A 30.0 ppb (23) 0.46 ppb (5) 44.0 μg/m3 (40) 15.1 μg/m3 (57) 57.0
 
March 31, 2020, 6 p.m. 23.0 ppb (21) 5.7 ppb (5) N/A 17.0 ppb (16) N/A N/A 31.0 ppb (24) 0.38 ppb (4) 36.0 μg/m3 (33) 11.4 μg/m3 (48) 48.0
 
March 31, 2020, 5 p.m. 25.6 ppb (24) 6.9 ppb (6) N/A 19.0 ppb (18) N/A N/A 27.0 ppb (21) 0.34 ppb (4) 30.0 μg/m3 (27) 14.1 μg/m3 (54) 54.0
 
March 31, 2020, 4 p.m. 31.6 ppb (29) 10.7 ppb (10) N/A 21.0 ppb (19) N/A N/A 20.0 ppb (15) 0.43 ppb (5) 29.0 μg/m3 (26) 15.1 μg/m3 (57) 57.0
 
March 31, 2020, 3 p.m. 56.8 ppb (53) 29.5 ppb (27) N/A 27.0 ppb (25) N/A N/A 8.0 ppb (6) 0.61 ppb (7) 37.0 μg/m3 (34) 17.8 μg/m3 (62) 62.0
 
March 31, 2020, 2 p.m. 67.8 ppb (65) 40.6 ppb (38) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 0.73 ppb (8) 26.0 μg/m3 (24) 9.1 μg/m3 (38) 65.0
 
March 31, 2020, 1 p.m. 62.4 ppb (59) 32.1 ppb (30) N/A 30.0 ppb (28) N/A N/A 0.0 ppb (0) 0.7 ppb (8) 23.0 μg/m3 (21) 9.6 μg/m3 (40) 59.0
 
March 31, 2020, noon 46.5 ppb (43) 14.8 ppb (14) N/A 32.0 ppb (30) N/A N/A 1.0 ppb (1) 0.53 ppb (6) 22.0 μg/m3 (20) 6.8 μg/m3 (28) 43.0
 
March 31, 2020, 11 a.m. 34.6 ppb (32) 8.1 ppb (8) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.33 ppb (4) 24.0 μg/m3 (22) 5.8 μg/m3 (24) 32.0
 
March 31, 2020, 10 a.m. 25.7 ppb (24) 2.9 ppb (3) N/A 23.0 ppb (21) N/A N/A 4.0 ppb (3) 0.29 ppb (3) 5.0 μg/m3 (5) 7.6 μg/m3 (32) 32.0
 
March 31, 2020, 9 a.m. 26.6 ppb (25) 4.1 ppb (4) N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.29 ppb (3) 18.0 μg/m3 (16) 6.2 μg/m3 (26) 26.0
 
March 31, 2020, 8 a.m. 32.4 ppb (30) 4.9 ppb (5) N/A 28.0 ppb (26) N/A N/A 1.0 ppb (1) 0.3 ppb (3) 12.0 μg/m3 (11) 5.4 μg/m3 (23) 30.0
 
March 31, 2020, 7 a.m. 23.1 ppb (21) 1.3 ppb (1) N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) 0.29 ppb (3) 16.0 μg/m3 (15) 5.6 μg/m3 (23) 23.0
 
March 31, 2020, 6 a.m. 20.3 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A N/A 17.0 ppb (13) 0.34 ppb (4) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 19.0
 
March 31, 2020, 5 a.m. 16.6 ppb (15) 1.1 ppb (1) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) 0.28 ppb (3) 10.0 μg/m3 (9) 5.8 μg/m3 (24) 24.0
 
March 31, 2020, 4 a.m. 11.1 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.23 ppb (3) 9.0 μg/m3 (8) 9.3 μg/m3 (39) 39.0
 
March 31, 2020, 3 a.m. 7.8 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 38.0 ppb (29) 0.21 ppb (2) 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 2 a.m. 7.5 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.23 ppb (3) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 32.0
 
March 31, 2020, 1 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 47.0 ppb (36) 0.22 ppb (2) 14.0 μg/m3 (13) 5.1 μg/m3 (21) 36.0
 
March 31, 2020, midnight 8.3 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 49.0 ppb (38) 0.22 ppb (2) 21.0 μg/m3 (19) 7.6 μg/m3 (32) 38.0
 
March 30, 2020, 11 p.m. 9.8 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (7) N/A N/A 49.0 ppb (38) 0.23 ppb (3) 30.0 μg/m3 (27) 8.5 μg/m3 (35) 38.0
 
March 30, 2020, 10 p.m. 13.0 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (9) N/A N/A 46.0 ppb (35) 0.24 ppb (3) 30.0 μg/m3 (27) 9.3 μg/m3 (39) 39.0
 
March 30, 2020, 9 p.m. 7.0 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.21 ppb (2) 15.0 μg/m3 (14) 5.8 μg/m3 (24) 38.0
 
March 30, 2020, 8 p.m. 5.8 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) 0.21 ppb (2) 13.0 μg/m3 (12) 1.9 μg/m3 (8) 37.0
 
March 30, 2020, 7 p.m. 3.9 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.18 ppb (2) 14.0 μg/m3 (13) 4.4 μg/m3 (18) 36.0
 
March 30, 2020, 6 p.m. 3.9 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.18 ppb (2) 12.0 μg/m3 (11) 9.3 μg/m3 (39) 39.0
 
March 30, 2020, 5 p.m. 6.7 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.2 ppb (2) 17.0 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
March 30, 2020, 4 p.m. 11.0 ppb (10) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) 0.23 ppb (3) 22.0 μg/m3 (20) 10.5 μg/m3 (44) 44.0
 
March 30, 2020, 3 p.m. 35.8 ppb (33) 15.5 ppb (14) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (11) 0.43 ppb (5) 26.0 μg/m3 (24) 10.9 μg/m3 (45) 45.0
 
March 30, 2020, 2 p.m. 52.8 ppb (49) 26.6 ppb (25) N/A 26.0 ppb (24) N/A N/A 3.0 ppb (2) 0.59 ppb (7) 30.0 μg/m3 (27) 9.6 μg/m3 (40) 49.0
 
March 30, 2020, 1 p.m. 36.9 ppb (34) 11.2 ppb (10) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) 0.44 ppb (5) 27.0 μg/m3 (25) 10.7 μg/m3 (45) 45.0
 
March 30, 2020, noon 26.5 ppb (25) 4.2 ppb (4) N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.41 ppb (5) 19.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
March 30, 2020, 11 a.m. 11.9 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) 0.23 ppb (3) 19.0 μg/m3 (17) 8.4 μg/m3 (35) 35.0
 
March 30, 2020, 10 a.m. 6.6 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.19 ppb (2) 13.0 μg/m3 (12) 4.9 μg/m3 (20) 20.0
 
March 30, 2020, 9 a.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.17 ppb (2) 17.0 μg/m3 (15) 8.4 μg/m3 (35) 35.0
 
March 30, 2020, 8 a.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.18 ppb (2) 20.0 μg/m3 (18) 11.7 μg/m3 (49) 49.0
 
March 30, 2020, 7 a.m. 6.8 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.23 ppb (3) 17.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
March 30, 2020, 6 a.m. 7.0 ppb (6) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) 0.22 ppb (2) 21.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
March 30, 2020, 5 a.m. 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.2 ppb (2) 15.0 μg/m3 (14) 7.4 μg/m3 (31) 31.0
 
March 30, 2020, 4 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.22 ppb (2) 14.0 μg/m3 (13) 2.2 μg/m3 (9) 29.0
 
March 30, 2020, 3 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.17 ppb (2) 11.0 μg/m3 (10) 1.5 μg/m3 (6) 32.0
 
March 30, 2020, 2 a.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.19 ppb (2) 17.0 μg/m3 (15) 7.3 μg/m3 (30) 31.0
 
March 30, 2020, 1 a.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.17 ppb (2) 10.0 μg/m3 (9) 9.5 μg/m3 (40) 40.0
 
March 30, 2020, midnight 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.16 ppb (2) 9.0 μg/m3 (8) 7.8 μg/m3 (32) 35.0
 
March 29, 2020, 11 p.m. 3.5 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) 0.16 ppb (2) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 35.0
 
March 29, 2020, 10 p.m. 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) 0.17 ppb (2) 16.0 μg/m3 (15) 8.0 μg/m3 (33) 39.0
 
March 29, 2020, 9 p.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.16 ppb (2) 20.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
March 29, 2020, 8 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.16 ppb (2) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
March 29, 2020, 7 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.16 ppb (2) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 35.0
 
March 29, 2020, 6 p.m. 2.5 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.16 ppb (2) 18.0 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
March 29, 2020, 5 p.m. 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.16 ppb (2) 17.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
March 29, 2020, 4 p.m. 4.8 ppb (4) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.17 ppb (2) 16.0 μg/m3 (15) 10.3 μg/m3 (43) 43.0
 
March 29, 2020, 3 p.m. 9.2 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.22 ppb (2) 11.0 μg/m3 (10) 7.4 μg/m3 (31) 31.0
 
March 29, 2020, 2 p.m. 12.9 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) 0.24 ppb (3) 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
March 29, 2020, 1 p.m. 6.2 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.18 ppb (2) 9.0 μg/m3 (8) 5.7 μg/m3 (24) 24.0
 
March 29, 2020, noon 6.3 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.17 ppb (2) 11.0 μg/m3 (10) 4.5 μg/m3 (19) 19.0
 
March 29, 2020, 11 a.m. 6.5 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.2 ppb (2) 11.0 μg/m3 (10) 2.0 μg/m3 (8) 16.0
 
March 29, 2020, 10 a.m. 5.2 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) 0.19 ppb (2) 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
March 29, 2020, 9 a.m. 10.2 ppb (9) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.24 ppb (3) 17.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
March 29, 2020, 8 a.m. 11.9 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) 0.32 ppb (4) 24.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
March 29, 2020, 7 a.m. 11.2 ppb (10) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.29 ppb (3) 19.0 μg/m3 (17) 11.5 μg/m3 (48) 48.0
 
March 29, 2020, 6 a.m. 9.1 ppb (8) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) 0.26 ppb (3) 22.0 μg/m3 (20) 11.7 μg/m3 (49) 49.0
 
March 29, 2020, 5 a.m. 6.8 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) 0.42 ppb (5) 20.0 μg/m3 (18) 7.8 μg/m3 (32) 32.0
 
March 29, 2020, 4 a.m. 5.7 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.25 ppb (3) 20.0 μg/m3 (18) 4.9 μg/m3 (20) 32.0
 
March 29, 2020, 3 a.m. 5.8 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.22 ppb (2) 8.0 μg/m3 (7) 5.8 μg/m3 (24) 32.0
 
March 29, 2020, 2 a.m. 6.1 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.17 ppb (2) 7.0 μg/m3 (6) 4.1 μg/m3 (17) 30.0
 
March 29, 2020, 1 a.m. 2.9 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.17 ppb (2) 14.0 μg/m3 (13) 3.9 μg/m3 (16) 35.0
 
March 29, 2020, midnight 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.18 ppb (2) 8.0 μg/m3 (7) 3.6 μg/m3 (15) 38.0
 
March 28, 2020, 11 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.16 ppb (2) 4.0 μg/m3 (4) 3.1 μg/m3 (13) 38.0
 
March 28, 2020, 10 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.17 ppb (2) 6.0 μg/m3 (5) 6.6 μg/m3 (28) 39.0
 
March 28, 2020, 9 p.m. 2.0 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.16 ppb (2) 8.0 μg/m3 (7) 9.5 μg/m3 (40) 40.0
 
March 28, 2020, 8 p.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.16 ppb (2) 15.0 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
March 28, 2020, 7 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.17 ppb (2) 11.0 μg/m3 (10) 7.5 μg/m3 (31) 36.0
 
March 28, 2020, 6 p.m. 3.5 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.17 ppb (2) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 34.0
 
March 28, 2020, 5 p.m. 5.7 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 0.18 ppb (2) 14.0 μg/m3 (13) 5.6 μg/m3 (23) 30.0
 
March 28, 2020, 4 p.m. 11.5 ppb (11) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.23 ppb (3) 16.0 μg/m3 (15) 7.8 μg/m3 (32) 32.0
 
March 28, 2020, 3 p.m. 17.7 ppb (16) 5.2 ppb (5) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.27 ppb (3) 17.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
March 28, 2020, 2 p.m. 24.0 ppb (22) 6.1 ppb (6) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (10) 0.3 ppb (3) 16.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
March 28, 2020, 1 p.m. 26.8 ppb (25) 3.4 ppb (3) N/A 23.0 ppb (21) N/A N/A 6.0 ppb (5) 0.3 ppb (3) 14.0 μg/m3 (13) 3.5 μg/m3 (15) 25.0
 
March 28, 2020, noon 20.9 ppb (19) 1.2 ppb (1) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (8) 0.27 ppb (3) 11.0 μg/m3 (10) 4.9 μg/m3 (20) 20.0
 
March 28, 2020, 11 a.m. 12.9 ppb (12) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.21 ppb (2) 13.0 μg/m3 (12) 5.4 μg/m3 (23) 23.0
 
March 28, 2020, 10 a.m. 14.6 ppb (14) 0.6 ppb (1) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) 0.21 ppb (2) 12.0 μg/m3 (11) 3.2 μg/m3 (13) 14.0
 
March 28, 2020, 9 a.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.16 ppb (2) 11.0 μg/m3 (10) 3.2 μg/m3 (13) 21.0
 
March 28, 2020, 8 a.m. 5.3 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.17 ppb (2) 10.0 μg/m3 (9) 3.4 μg/m3 (14) 19.0
 
March 28, 2020, 7 a.m. 10.6 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.25 ppb (3) 13.0 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
March 28, 2020, 6 a.m. 9.7 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.25 ppb (3) 22.0 μg/m3 (20) 9.9 μg/m3 (41) 41.0
 
March 28, 2020, 5 a.m. 8.9 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.23 ppb (3) 22.0 μg/m3 (20) 6.8 μg/m3 (28) 28.0
 
March 28, 2020, 4 a.m. 9.7 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) 0.25 ppb (3) 22.0 μg/m3 (20) 6.4 μg/m3 (27) 27.0
 
March 28, 2020, 3 a.m. 5.5 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.22 ppb (2) 17.0 μg/m3 (15) 4.2 μg/m3 (18) 28.0
 
March 28, 2020, 2 a.m. 5.6 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.2 ppb (2) 10.0 μg/m3 (9) 2.5 μg/m3 (10) 28.0
 
March 28, 2020, 1 a.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.16 ppb (2) 7.0 μg/m3 (6) 1.2 μg/m3 (5) 32.0
 
March 28, 2020, midnight 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.15 ppb (2) 5.0 μg/m3 (5) -0.2 μg/m3 (0) 35.0
 
March 27, 2020, 11 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.15 ppb (2) 6.0 μg/m3 (5) 0.7 μg/m3 (3) 35.0
 
March 27, 2020, 10 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.15 ppb (2) 5.0 μg/m3 (5) 1.0 μg/m3 (4) 35.0
 
March 27, 2020, 9 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.15 ppb (2) 6.0 μg/m3 (5) 0.5 μg/m3 (2) 35.0
 
March 27, 2020, 8 p.m. 4.0 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.16 ppb (2) 8.0 μg/m3 (7) 2.4 μg/m3 (10) 34.0
 
March 27, 2020, 7 p.m. 7.5 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.19 ppb (2) 9.0 μg/m3 (8) 6.3 μg/m3 (26) 32.0
 
March 27, 2020, 6 p.m. 10.9 ppb (10) 3.4 ppb (3) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.2 ppb (2) 9.0 μg/m3 (8) 6.1 μg/m3 (25) 28.0
 
March 27, 2020, 5 p.m. 11.5 ppb (11) 3.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) 0.21 ppb (2) 9.0 μg/m3 (8) 6.1 μg/m3 (25) 25.0
 
March 27, 2020, 4 p.m. 17.0 ppb (16) 6.1 ppb (6) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.24 ppb (3) 10.0 μg/m3 (9) 8.8 μg/m3 (37) 37.0
 
March 27, 2020, 3 p.m. 47.4 ppb (44) 24.3 ppb (23) N/A 23.0 ppb (21) N/A N/A 9.0 ppb (7) 0.44 ppb (5) 26.0 μg/m3 (24) 6.9 μg/m3 (29) 44.0
 
March 27, 2020, 2 p.m. 63.2 ppb (60) 38.4 ppb (36) N/A 25.0 ppb (23) N/A N/A 2.0 ppb (2) 0.59 ppb (7) 24.0 μg/m3 (22) 3.9 μg/m3 (16) 60.0
 
March 27, 2020, 1 p.m. 71.7 ppb (69) 45.4 ppb (42) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.73 ppb (8) 21.0 μg/m3 (19) 3.2 μg/m3 (13) 69.0
 
March 27, 2020, noon 60.0 ppb (56) 33.2 ppb (31) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 0.6 ppb (7) 15.0 μg/m3 (14) 2.7 μg/m3 (11) 56.0
 
March 27, 2020, 11 a.m. 32.2 ppb (30) 10.4 ppb (10) N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.36 ppb (4) 9.0 μg/m3 (8) 1.3 μg/m3 (5) 30.0
 
March 27, 2020, 10 a.m. 15.8 ppb (15) 0.9 ppb (1) N/A 15.0 ppb (14) N/A N/A 13.0 ppb (10) 0.23 ppb (3) 10.0 μg/m3 (9) -0.3 μg/m3 (0) 15.0
 
March 27, 2020, 9 a.m. 13.2 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) 0.23 ppb (3) 11.0 μg/m3 (10) -1.1 μg/m3 (0) 13.0
 
March 27, 2020, 8 a.m. 10.0 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.22 ppb (2) 10.0 μg/m3 (9) 1.3 μg/m3 (5) 17.0
 
March 27, 2020, 7 a.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.19 ppb (2) 10.0 μg/m3 (9) 3.7 μg/m3 (15) 24.0
 
March 27, 2020, 6 a.m. 8.2 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 31.0 ppb (24) 0.18 ppb (2) 10.0 μg/m3 (9) 1.3 μg/m3 (5) 24.0
 
March 27, 2020, 5 a.m. 4.8 ppb (4) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.2 ppb (2) 13.0 μg/m3 (12) 2.5 μg/m3 (10) 28.0
 
March 27, 2020, 4 a.m. 3.8 ppb (4) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.16 ppb (2) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 29.0
 
March 27, 2020, 3 a.m. 3.3 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.18 ppb (2) 9.0 μg/m3 (8) -0.3 μg/m3 (0) 30.0
 
March 27, 2020, 2 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.17 ppb (2) 8.0 μg/m3 (7) 1.3 μg/m3 (5) 31.0
 
March 27, 2020, 1 a.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.17 ppb (2) 9.0 μg/m3 (8) -1.8 μg/m3 (0) 31.0
 
March 27, 2020, midnight 2.2 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.16 ppb (2) 10.0 μg/m3 (9) -0.9 μg/m3 (0) 31.0
 
March 26, 2020, 11 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.15 ppb (2) 14.0 μg/m3 (13) 2.6 μg/m3 (11) 32.0
 
March 26, 2020, 10 p.m. 2.5 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.14 ppb (2) 12.0 μg/m3 (11) -0.2 μg/m3 (0) 32.0
 
March 26, 2020, 9 p.m. 2.8 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.15 ppb (2) 8.0 μg/m3 (7) N/A 35.0
 
March 26, 2020, 8 p.m. 3.2 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.14 ppb (2) 8.0 μg/m3 (7) -0.9 μg/m3 (0) 34.0
 
March 26, 2020, 7 p.m. 7.3 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.19 ppb (2) 10.0 μg/m3 (9) 0.5 μg/m3 (2) 32.0
 
March 26, 2020, 6 p.m. 8.2 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.18 ppb (2) 6.0 μg/m3 (5) 1.9 μg/m3 (8) 30.0
 
March 26, 2020, 5 p.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.18 ppb (2) 5.0 μg/m3 (5) 2.9 μg/m3 (12) 31.0
 
March 26, 2020, 4 p.m. 4.5 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.17 ppb (2) 5.0 μg/m3 (5) 2.2 μg/m3 (9) 30.0
 
March 26, 2020, 3 p.m. 18.8 ppb (17) 6.8 ppb (6) N/A 12.0 ppb (11) N/A N/A 30.0 ppb (23) 0.28 ppb (3) 20.0 μg/m3 (18) 4.1 μg/m3 (17) 23.0
 
March 26, 2020, 2 p.m. 28.9 ppb (27) 6.9 ppb (6) N/A 22.0 ppb (20) N/A N/A 17.0 ppb (13) 0.4 ppb (4) 5.0 μg/m3 (5) 3.4 μg/m3 (14) 27.0