ID: 2722

AQSQID: 060010013

Site Name: Berkeley Aquatic Park

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

Updated: April 16, 2021, 12:44 p.m.

Location: Berkeley (Marina), CA

Reporting: True, Located: True

Current AQI: 50.0

Berkeley (Marina) CA, US: 37.864767, -122.302741

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 26, 2021, 11 a.m. 19.4 ppb (19) 2.5 ppb (3) N/A 17.0 ppb (17) N/A N/A 8.0 ppb (8) 0.44 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
March 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
March 26, 2021, 9 a.m. 8.3 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) 0.44 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
March 26, 2021, 8 a.m. 5.2 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.36 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
March 26, 2021, 7 a.m. 6.0 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.34 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
March 26, 2021, 6 a.m. 6.4 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.35 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
March 26, 2021, 5 a.m. 10.5 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 23.0 ppb (22) 0.43 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
March 26, 2021, 4 a.m. 13.1 ppb (13) 4.2 ppb (4) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.39 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
March 26, 2021, 3 a.m. 18.2 ppb (18) 7.7 ppb (8) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) 0.46 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
March 26, 2021, 2 a.m. 25.7 ppb (25) 12.0 ppb (12) N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) 0.46 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
March 26, 2021, 1 a.m. 23.6 ppb (23) 12.2 ppb (12) N/A 11.0 ppb (11) N/A N/A 25.0 ppb (24) 0.46 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
March 26, 2021, midnight 20.2 ppb (20) 10.8 ppb (11) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.4 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 25, 2021, 11 p.m. 23.5 ppb (23) 13.2 ppb (13) N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2021, 10 p.m. 23.2 ppb (22) 12.5 ppb (12) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
March 25, 2021, 9 p.m. 22.7 ppb (22) 14.0 ppb (14) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) 0.39 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2021, 8 p.m. 24.7 ppb (24) 14.3 ppb (14) N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
March 25, 2021, 7 p.m. 31.1 ppb (30) 16.4 ppb (16) N/A 15.0 ppb (15) N/A N/A 26.0 ppb (25) 0.4 ppb (5) N/A 4.0 μg/m3 (17) 30.0
 
March 25, 2021, 6 p.m. 31.4 ppb (30) 16.1 ppb (16) N/A 15.0 ppb (15) N/A N/A 26.0 ppb (25) 0.38 ppb (5) N/A 6.0 μg/m3 (25) 30.0
 
March 25, 2021, 5 p.m. 41.8 ppb (40) 23.8 ppb (23) N/A 18.0 ppb (17) N/A N/A 23.0 ppb (22) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 40.0
 
March 25, 2021, 4 p.m. 37.8 ppb (36) 19.8 ppb (19) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (23) 0.42 ppb (5) N/A 7.0 μg/m3 (30) 36.0
 
March 25, 2021, 3 p.m. 48.2 ppb (46) 26.5 ppb (25) N/A 22.0 ppb (21) N/A N/A 19.0 ppb (18) 0.51 ppb (6) N/A 6.0 μg/m3 (25) 46.0
 
March 25, 2021, 2 p.m. 46.0 ppb (44) 22.9 ppb (22) N/A 23.0 ppb (22) N/A N/A 19.0 ppb (18) 0.59 ppb (7) N/A 5.0 μg/m3 (21) 44.0
 
March 25, 2021, 1 p.m. 41.6 ppb (40) 21.8 ppb (21) N/A 20.0 ppb (19) N/A N/A 21.0 ppb (20) 0.58 ppb (7) N/A 5.0 μg/m3 (21) 40.0
 
March 25, 2021, noon 29.1 ppb (28) 14.6 ppb (14) N/A 15.0 ppb (15) N/A N/A 28.0 ppb (26) 0.47 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2021, 11 a.m. 13.8 ppb (14) 8.1 ppb (8) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) 0.36 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
March 25, 2021, 9 a.m. 15.7 ppb (15) 6.6 ppb (7) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
March 25, 2021, 8 a.m. 10.4 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (9) N/A N/A 23.0 ppb (22) 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2021, 7 a.m. 5.2 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2021, 6 a.m. 5.7 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2021, 5 a.m. 6.0 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
March 25, 2021, 4 a.m. 4.7 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
March 25, 2021, 3 a.m. 5.0 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.28 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
March 25, 2021, 2 a.m. 19.6 ppb (19) 6.8 ppb (7) N/A 13.0 ppb (13) N/A N/A 28.0 ppb (26) 0.43 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 25, 2021, 1 a.m. 19.2 ppb (19) 10.1 ppb (10) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) 0.41 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
March 25, 2021, midnight 13.1 ppb (13) 7.5 ppb (8) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.37 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
March 24, 2021, 11 p.m. 16.5 ppb (16) 9.4 ppb (9) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) 0.38 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
March 24, 2021, 10 p.m. 16.8 ppb (16) 9.6 ppb (10) N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) 0.36 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
March 24, 2021, 9 p.m. 21.2 ppb (20) 13.9 ppb (14) N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) 0.39 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
March 24, 2021, 8 p.m. 18.5 ppb (18) 9.5 ppb (9) N/A 9.0 ppb (9) N/A N/A 34.0 ppb (32) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
March 24, 2021, 7 p.m. 23.7 ppb (23) 12.0 ppb (12) N/A 12.0 ppb (12) N/A N/A 31.0 ppb (29) 0.38 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
March 24, 2021, 5 p.m. 42.3 ppb (40) 21.4 ppb (21) N/A 21.0 ppb (20) N/A N/A 24.0 ppb (23) 0.41 ppb (5) N/A 9.0 μg/m3 (38) 40.0
 
March 24, 2021, 4 p.m. 48.7 ppb (46) 23.3 ppb (22) N/A 25.0 ppb (24) N/A N/A 21.0 ppb (20) 0.44 ppb (5) N/A 10.0 μg/m3 (42) 46.0
 
March 24, 2021, 3 p.m. 32.2 ppb (31) 11.5 ppb (11) N/A 21.0 ppb (20) N/A N/A 24.0 ppb (23) 0.37 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 24, 2021, 2 p.m. 18.1 ppb (18) 2.7 ppb (3) N/A 15.0 ppb (15) N/A N/A 28.0 ppb (26) 0.32 ppb (4) N/A 6.0 μg/m3 (25) 26.0
 
March 24, 2021, 1 p.m. 35.8 ppb (34) 13.2 ppb (13) N/A 23.0 ppb (22) N/A N/A 21.0 ppb (20) 0.42 ppb (5) N/A 7.0 μg/m3 (30) 34.0
 
March 24, 2021, noon 34.7 ppb (33) 12.6 ppb (12) N/A 22.0 ppb (21) N/A N/A 21.0 ppb (20) 0.38 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 24, 2021, 11 a.m. 18.4 ppb (18) 4.2 ppb (4) N/A 14.0 ppb (14) N/A N/A 25.0 ppb (24) 0.34 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
March 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
March 24, 2021, 9 a.m. 16.6 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (14) N/A N/A 28.0 ppb (26) 0.28 ppb (4) N/A 4.0 μg/m3 (17) 26.0
 
March 24, 2021, 8 a.m. 18.5 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (16) N/A N/A 21.0 ppb (20) 0.32 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
March 24, 2021, 7 a.m. 15.2 ppb (15) 2.0 ppb (2) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) 0.3 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2021, 6 a.m. 27.1 ppb (26) 9.6 ppb (10) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (23) 0.37 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
March 24, 2021, 5 a.m. 24.2 ppb (23) 6.5 ppb (7) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (24) 0.39 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
March 24, 2021, 4 a.m. 19.9 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (14) N/A N/A 29.0 ppb (27) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 27.0
 
March 24, 2021, 3 a.m. 21.0 ppb (20) 6.4 ppb (7) N/A 15.0 ppb (15) N/A N/A 31.0 ppb (29) 0.43 ppb (5) N/A 5.0 μg/m3 (21) 29.0
 
March 24, 2021, 2 a.m. 7.7 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) 0.29 ppb (4) N/A 6.0 μg/m3 (25) 38.0
 
March 24, 2021, 1 a.m. 2.3 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 43.0
 
March 24, 2021, midnight 4.6 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.28 ppb (4) N/A 4.0 μg/m3 (17) 41.0
 
March 23, 2021, 11 p.m. 9.7 ppb (10) 3.7 ppb (4) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) 0.32 ppb (4) N/A 3.0 μg/m3 (13) 38.0
 
March 23, 2021, 10 p.m. 11.3 ppb (11) 4.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) 0.31 ppb (4) N/A 2.0 μg/m3 (9) 38.0
 
March 23, 2021, 9 p.m. 10.8 ppb (11) 3.9 ppb (4) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) 0.31 ppb (4) N/A 26.0 μg/m3 (81) 81.0
 
March 23, 2021, 8 p.m. 15.2 ppb (15) 6.2 ppb (6) N/A 9.0 ppb (9) N/A N/A 37.0 ppb (35) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 35.0
 
March 23, 2021, 7 p.m. 24.0 ppb (23) 10.7 ppb (11) N/A 13.0 ppb (13) N/A N/A 33.0 ppb (31) 0.38 ppb (5) N/A 4.0 μg/m3 (17) 31.0
 
March 23, 2021, 6 p.m. 30.3 ppb (29) 13.8 ppb (14) N/A 17.0 ppb (17) N/A N/A 31.0 ppb (29) 0.44 ppb (5) N/A 6.0 μg/m3 (25) 29.0
 
March 23, 2021, 5 p.m. 27.3 ppb (26) 13.0 ppb (13) N/A 14.0 ppb (14) N/A N/A 29.0 ppb (27) 0.46 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
March 23, 2021, 4 p.m. 37.8 ppb (36) 18.9 ppb (18) N/A 19.0 ppb (18) N/A N/A 22.0 ppb (21) 0.44 ppb (5) N/A 4.0 μg/m3 (17) 36.0
 
March 23, 2021, 3 p.m. 50.4 ppb (48) 25.1 ppb (24) N/A 25.0 ppb (24) N/A N/A 16.0 ppb (15) 0.53 ppb (6) N/A 7.0 μg/m3 (30) 48.0
 
March 23, 2021, 2 p.m. 42.6 ppb (41) 17.6 ppb (17) N/A 25.0 ppb (24) N/A N/A 13.0 ppb (13) 0.55 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
March 23, 2021, 1 p.m. 26.9 ppb (26) 7.4 ppb (7) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (16) 0.48 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
March 23, 2021, noon 19.1 ppb (19) 4.6 ppb (5) N/A 15.0 ppb (15) N/A N/A 21.0 ppb (20) 0.43 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 23, 2021, 11 a.m. 10.1 ppb (10) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 25.0
 
March 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2021, 9 a.m. 7.8 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) 0.35 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
March 23, 2021, 8 a.m. 13.6 ppb (13) 4.6 ppb (5) N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 23, 2021, 7 a.m. 6.2 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.31 ppb (4) N/A 7.0 μg/m3 (30) 34.0
 
March 23, 2021, 6 a.m. 10.8 ppb (11) 5.2 ppb (5) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 32.0
 
March 23, 2021, 5 a.m. 9.2 ppb (9) 4.6 ppb (5) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.37 ppb (5) N/A 6.0 μg/m3 (25) 33.0
 
March 23, 2021, 4 a.m. 12.1 ppb (12) 4.2 ppb (4) N/A 8.0 ppb (8) N/A N/A 33.0 ppb (31) 0.38 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 23, 2021, 3 a.m. 13.9 ppb (14) 5.8 ppb (6) N/A 8.0 ppb (8) N/A N/A 33.0 ppb (31) 0.38 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 23, 2021, 2 a.m. 16.3 ppb (16) 7.5 ppb (8) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) 0.46 ppb (6) N/A 6.0 μg/m3 (25) 30.0
 
March 23, 2021, 1 a.m. 28.4 ppb (27) 13.5 ppb (13) N/A 15.0 ppb (15) N/A N/A 25.0 ppb (24) 0.48 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
March 23, 2021, midnight 22.5 ppb (22) 12.1 ppb (12) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) 0.44 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
March 22, 2021, 11 p.m. 27.2 ppb (26) 14.4 ppb (14) N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.47 ppb (6) N/A 6.0 μg/m3 (25) 27.0
 
March 22, 2021, 10 p.m. 31.1 ppb (30) 16.2 ppb (16) N/A 15.0 ppb (15) N/A N/A 28.0 ppb (26) 0.5 ppb (6) N/A 5.0 μg/m3 (21) 30.0
 
March 22, 2021, 9 p.m. 29.4 ppb (28) 14.0 ppb (14) N/A 15.0 ppb (15) N/A N/A 30.0 ppb (28) 0.44 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
March 22, 2021, 8 p.m. 28.5 ppb (27) 12.2 ppb (12) N/A 16.0 ppb (16) N/A N/A 30.0 ppb (28) 0.41 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 22, 2021, 7 p.m. 44.8 ppb (43) 21.4 ppb (21) N/A 23.0 ppb (22) N/A N/A 22.0 ppb (21) 0.47 ppb (6) N/A 4.0 μg/m3 (17) 43.0
 
March 22, 2021, 6 p.m. 47.0 ppb (45) 21.3 ppb (21) N/A 26.0 ppb (25) N/A N/A 19.0 ppb (18) 0.48 ppb (6) N/A 18.0 μg/m3 (64) 64.0
 
March 22, 2021, 5 p.m. 35.6 ppb (34) 16.6 ppb (16) N/A 20.0 ppb (19) N/A N/A 24.0 ppb (23) 0.56 ppb (7) N/A N/A 34.0
 
March 22, 2021, 4 p.m. 38.7 ppb (37) 17.9 ppb (17) N/A 21.0 ppb (20) N/A N/A 21.0 ppb (20) 0.46 ppb (6) N/A 8.0 μg/m3 (34) 37.0
 
March 22, 2021, 3 p.m. 24.4 ppb (24) 8.3 ppb (8) N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) 0.4 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 22, 2021, 2 p.m. 22.2 ppb (21) 4.8 ppb (5) N/A 17.0 ppb (17) N/A N/A 21.0 ppb (20) 0.44 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 22, 2021, 1 p.m. 16.8 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (14) N/A N/A 21.0 ppb (20) 0.41 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
March 22, 2021, noon 10.4 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A N/A 26.0 ppb (25) 0.35 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
March 22, 2021, 11 a.m. 5.7 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
March 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
March 22, 2021, 9 a.m. 3.3 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.35 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
March 22, 2021, 8 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.34 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
March 22, 2021, 7 a.m. 3.9 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.33 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
March 22, 2021, 6 a.m. 10.7 ppb (11) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.39 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 22, 2021, 5 a.m. 10.8 ppb (11) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 23.0 ppb (22) 0.38 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 22, 2021, 4 a.m. 20.6 ppb (20) 7.5 ppb (8) N/A 13.0 ppb (13) N/A N/A 24.0 ppb (23) 0.53 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
March 22, 2021, 3 a.m. 25.8 ppb (25) 9.8 ppb (10) N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) 0.56 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
March 22, 2021, 2 a.m. 18.3 ppb (18) 7.9 ppb (8) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
March 22, 2021, 1 a.m. 12.2 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.44 ppb (5) N/A 6.0 μg/m3 (25) 29.0
 
March 22, 2021, midnight 12.4 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 21, 2021, 11 p.m. 12.2 ppb (12) 6.4 ppb (7) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) 0.41 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 21, 2021, 10 p.m. 12.2 ppb (12) 7.0 ppb (7) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.44 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 21, 2021, 9 p.m. 12.6 ppb (12) 7.1 ppb (7) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.43 ppb (5) N/A N/A 27.0
 
March 21, 2021, 8 p.m. 11.3 ppb (11) 6.5 ppb (7) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 26.0
 
March 21, 2021, 7 p.m. 17.6 ppb (17) 8.7 ppb (9) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.42 ppb (5) N/A 4.0 μg/m3 (17) 25.0
 
March 21, 2021, 6 p.m. 18.3 ppb (18) 9.5 ppb (9) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) 0.45 ppb (6) N/A 4.0 μg/m3 (17) 24.0
 
March 21, 2021, 5 p.m. 16.2 ppb (16) 8.4 ppb (8) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.46 ppb (6) N/A 2.0 μg/m3 (9) 24.0
 
March 21, 2021, 4 p.m. 13.8 ppb (14) 6.1 ppb (6) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.43 ppb (5) N/A 3.0 μg/m3 (13) 23.0
 
March 21, 2021, 3 p.m. 13.0 ppb (13) 4.2 ppb (4) N/A 9.0 ppb (9) N/A N/A 22.0 ppb (21) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2021, 2 p.m. 11.2 ppb (11) 2.8 ppb (3) N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) 0.39 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2021, 1 p.m. 4.1 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.35 ppb (4) N/A 4.0 μg/m3 (17) 24.0
 
March 21, 2021, noon 6.8 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2021, 11 a.m. 11.3 ppb (11) 1.5 ppb (2) N/A 10.0 ppb (10) N/A N/A 18.0 ppb (17) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2021, 9 a.m. 9.6 ppb (10) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) 0.43 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
March 21, 2021, 8 a.m. 16.1 ppb (16) 2.3 ppb (3) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.55 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
March 21, 2021, 7 a.m. 13.0 ppb (13) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A 16.0 ppb (15) 0.47 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
March 21, 2021, 6 a.m. 18.1 ppb (18) 2.1 ppb (2) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) 0.45 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
March 21, 2021, 5 a.m. 15.3 ppb (15) 4.2 ppb (4) N/A 11.0 ppb (11) N/A N/A 27.0 ppb (25) 0.51 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
March 21, 2021, 4 a.m. 18.1 ppb (18) 7.0 ppb (7) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) 0.55 ppb (7) N/A 6.0 μg/m3 (25) 26.0
 
March 21, 2021, 3 a.m. 18.5 ppb (18) 8.1 ppb (8) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) 0.53 ppb (6) N/A 5.0 μg/m3 (21) 28.0
 
March 21, 2021, 2 a.m. 18.6 ppb (18) 8.6 ppb (9) N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) 0.49 ppb (6) N/A 6.0 μg/m3 (25) 29.0
 
March 21, 2021, 1 a.m. 14.0 ppb (14) 6.9 ppb (7) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.39 ppb (5) N/A 4.0 μg/m3 (17) 33.0
 
March 21, 2021, midnight 13.1 ppb (13) 6.6 ppb (7) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.38 ppb (5) N/A 6.0 μg/m3 (25) 34.0
 
March 20, 2021, 11 p.m. 14.3 ppb (14) 7.5 ppb (8) N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) 0.39 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 20, 2021, 10 p.m. 16.6 ppb (16) 8.6 ppb (9) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.42 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
March 20, 2021, 9 p.m. 14.5 ppb (14) 7.5 ppb (8) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.39 ppb (5) N/A 6.0 μg/m3 (25) 34.0
 
March 20, 2021, 8 p.m. 15.7 ppb (15) 7.7 ppb (8) N/A 8.0 ppb (8) N/A N/A 35.0 ppb (33) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 33.0
 
March 20, 2021, 7 p.m. 17.9 ppb (17) 9.1 ppb (9) N/A 9.0 ppb (9) N/A N/A 34.0 ppb (32) 0.4 ppb (5) N/A N/A 32.0
 
March 20, 2021, 6 p.m. 15.8 ppb (15) 8.0 ppb (8) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.42 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
March 20, 2021, 5 p.m. 19.2 ppb (19) 9.9 ppb (10) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 20, 2021, 4 p.m. 22.1 ppb (21) 10.7 ppb (11) N/A 11.0 ppb (11) N/A N/A 30.0 ppb (28) 0.52 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
March 20, 2021, 3 p.m. 31.0 ppb (30) 13.1 ppb (13) N/A 18.0 ppb (17) N/A N/A 22.0 ppb (21) 0.61 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
March 20, 2021, 2 p.m. 30.4 ppb (29) 12.7 ppb (12) N/A 18.0 ppb (17) N/A N/A 23.0 ppb (22) 0.6 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
March 20, 2021, 1 p.m. 22.2 ppb (21) 9.8 ppb (10) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) 0.54 ppb (6) N/A 18.0 μg/m3 (64) 64.0
 
March 20, 2021, 7 a.m. 10.0 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 32.0
 
March 20, 2021, 6 a.m. 17.1 ppb (17) 6.3 ppb (6) N/A 11.0 ppb (11) N/A N/A 32.0 ppb (30) 0.49 ppb (6) N/A 5.0 μg/m3 (21) 30.0
 
March 20, 2021, 5 a.m. 13.8 ppb (14) 6.1 ppb (6) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.45 ppb (6) N/A 7.0 μg/m3 (30) 32.0
 
March 20, 2021, 4 a.m. 22.6 ppb (22) 8.4 ppb (8) N/A 14.0 ppb (14) N/A N/A 28.0 ppb (26) 0.54 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
March 20, 2021, 3 a.m. 20.8 ppb (20) 8.6 ppb (9) N/A 12.0 ppb (12) N/A N/A 30.0 ppb (28) 0.49 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
March 20, 2021, 2 a.m. 23.4 ppb (23) 10.9 ppb (11) N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.51 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
March 20, 2021, 1 a.m. 18.5 ppb (18) 8.9 ppb (9) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) 0.34 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
March 20, 2021, midnight 16.5 ppb (16) 7.9 ppb (8) N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) 0.32 ppb (4) N/A 7.0 μg/m3 (30) 33.0
 
March 19, 2021, 11 p.m. 17.7 ppb (17) 9.6 ppb (10) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 32.0
 
March 19, 2021, 10 p.m. 20.3 ppb (20) 10.8 ppb (11) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 32.0
 
March 19, 2021, 9 p.m. 22.2 ppb (21) 10.8 ppb (11) N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) 0.39 ppb (5) N/A 7.0 μg/m3 (30) 31.0
 
March 19, 2021, 8 p.m. 26.8 ppb (26) 13.7 ppb (13) N/A 13.0 ppb (13) N/A N/A 32.0 ppb (30) 0.39 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 19, 2021, 7 p.m. 38.6 ppb (37) 21.1 ppb (20) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (24) 0.42 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 19, 2021, 6 p.m. 63.8 ppb (62) 39.9 ppb (38) N/A 24.0 ppb (23) N/A N/A 19.0 ppb (18) 0.42 ppb (5) N/A 9.0 μg/m3 (38) 62.0
 
March 19, 2021, 5 p.m. 120.8 ppb (105) 80.0 ppb (79) N/A 41.0 ppb (39) N/A N/A 10.0 ppb (10) 0.53 ppb (6) N/A 5.0 μg/m3 (21) 105.0
 
March 19, 2021, 4 p.m. 87.6 ppb (87) 59.7 ppb (58) N/A 28.0 ppb (27) N/A N/A 14.0 ppb (13) 0.47 ppb (6) N/A 8.0 μg/m3 (34) 87.0
 
March 19, 2021, 3 p.m. 101.2 ppb (102) 71.2 ppb (70) N/A 30.0 ppb (29) N/A N/A 10.0 ppb (10) 0.52 ppb (6) N/A 88.0 μg/m3 (168) 168.0
 
March 19, 2021, 2 p.m. 31.1 ppb (30) 8.0 ppb (8) N/A 23.0 ppb (22) N/A N/A 8.0 ppb (8) 0.47 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
March 19, 2021, 1 p.m. 28.6 ppb (27) 7.1 ppb (7) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.51 ppb (6) N/A N/A 27.0
 
March 19, 2021, noon 17.4 ppb (17) 3.8 ppb (4) N/A 14.0 ppb (14) N/A N/A 13.0 ppb (13) 0.39 ppb (5) N/A N/A 17.0
 
March 19, 2021, 11 a.m. 11.8 ppb (12) 1.6 ppb (2) N/A 10.0 ppb (10) N/A N/A 15.0 ppb (14) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 19, 2021, 9 a.m. 18.4 ppb (18) 3.6 ppb (4) N/A 15.0 ppb (15) N/A N/A 16.0 ppb (15) 0.42 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 19, 2021, 8 a.m. 8.9 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
March 19, 2021, 7 a.m. 8.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.33 ppb (4) N/A 8.0 μg/m3 (34) 34.0