ID: 2722

AQSQID: 060010013

Site Name: Berkeley Aquatic Park

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

Updated: Feb. 25, 2021, 6:32 p.m.

Location: Berkeley (Marina), CA

Reporting: True, Located: True

Current AQI: 78.0

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
Feb. 25, 2021, 5 p.m. 79.2 ppb (78) 43.5 ppb (42) N/A 36.0 ppb (34) N/A N/A 12.0 ppb (12) 0.57 ppb (7) N/A 4.0 μg/m3 (17) 78.0
 
Feb. 25, 2021, 4 p.m. 32.6 ppb (31) 13.6 ppb (13) N/A 19.0 ppb (18) N/A N/A 23.0 ppb (22) 0.43 ppb (5) N/A 4.0 μg/m3 (17) 31.0
 
Feb. 25, 2021, 3 p.m. 41.6 ppb (40) 11.9 ppb (12) N/A 30.0 ppb (29) N/A N/A 10.0 ppb (10) 0.52 ppb (6) N/A 6.0 μg/m3 (25) 40.0
 
Feb. 25, 2021, 2 p.m. 28.2 ppb (27) 4.9 ppb (5) N/A 23.0 ppb (22) N/A N/A 16.0 ppb (15) 0.47 ppb (6) N/A 4.0 μg/m3 (17) 27.0
 
Feb. 25, 2021, 1 p.m. 10.0 ppb (10) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) 0.33 ppb (4) N/A 4.0 μg/m3 (17) 31.0
 
Feb. 25, 2021, noon 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 36.0
 
Feb. 25, 2021, 11 a.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.22 ppb (3) N/A 1.0 μg/m3 (5) 38.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Feb. 25, 2021, 9 a.m. 6.2 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) 0.24 ppb (3) N/A 3.0 μg/m3 (13) 36.0
 
Feb. 25, 2021, 8 a.m. 7.9 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) 0.25 ppb (3) N/A -1.0 μg/m3 (0) 35.0
 
Feb. 25, 2021, 7 a.m. 1.7 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.19 ppb (3) N/A -2.0 μg/m3 (0) 39.0
 
Feb. 25, 2021, 6 a.m. 2.2 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.19 ppb (3) N/A 0.0 μg/m3 (0) 40.0
 
Feb. 25, 2021, 5 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) 0.19 ppb (3) N/A 0.0 μg/m3 (0) 40.0
 
Feb. 25, 2021, 4 a.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.21 ppb (3) N/A 0.0 μg/m3 (0) 39.0
 
Feb. 25, 2021, 3 a.m. 24.6 ppb (24) 8.9 ppb (9) N/A 16.0 ppb (16) N/A N/A 30.0 ppb (28) 0.38 ppb (5) N/A 3.0 μg/m3 (13) 28.0
 
Feb. 25, 2021, 2 a.m. 31.9 ppb (31) 12.4 ppb (12) N/A 20.0 ppb (19) N/A N/A 26.0 ppb (25) 0.45 ppb (6) N/A 5.0 μg/m3 (21) 31.0
 
Feb. 25, 2021, 1 a.m. 19.4 ppb (19) 6.8 ppb (7) N/A 13.0 ppb (13) N/A N/A 35.0 ppb (33) 0.36 ppb (5) N/A 2.0 μg/m3 (9) 33.0
 
Feb. 25, 2021, midnight 6.1 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) 0.29 ppb (4) N/A 3.0 μg/m3 (13) 40.0
 
Feb. 24, 2021, 11 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) 0.27 ppb (4) N/A 3.0 μg/m3 (13) 42.0
 
Feb. 24, 2021, 10 p.m. 4.2 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.3 ppb (4) N/A 4.0 μg/m3 (17) 42.0
 
Feb. 24, 2021, 9 p.m. 6.9 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 40.0
 
Feb. 24, 2021, 8 p.m. 18.8 ppb (18) 7.4 ppb (7) N/A 11.0 ppb (11) N/A N/A 35.0 ppb (33) 0.43 ppb (5) N/A 3.0 μg/m3 (13) 33.0
 
Feb. 24, 2021, 7 p.m. 19.3 ppb (19) 7.9 ppb (8) N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 31.0
 
Feb. 24, 2021, 6 p.m. 41.2 ppb (39) 22.3 ppb (22) N/A 19.0 ppb (18) N/A N/A 20.0 ppb (19) 0.48 ppb (6) N/A 9.0 μg/m3 (38) 39.0
 
Feb. 24, 2021, 5 p.m. 49.9 ppb (48) 28.2 ppb (27) N/A 22.0 ppb (21) N/A N/A 15.0 ppb (14) 0.57 ppb (7) N/A N/A 48.0
 
Feb. 24, 2021, 4 p.m. 46.3 ppb (44) 26.5 ppb (25) N/A 22.0 ppb (21) N/A N/A 13.0 ppb (13) 0.56 ppb (7) N/A 10.0 μg/m3 (42) 44.0
 
Feb. 24, 2021, 3 p.m. 35.3 ppb (34) 15.1 ppb (15) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (13) 1.06 ppb (13) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 24, 2021, 2 p.m. 15.2 ppb (15) 3.1 ppb (3) N/A 12.0 ppb (12) N/A N/A 21.0 ppb (20) 0.38 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 1 p.m. 34.3 ppb (33) 12.7 ppb (12) N/A 22.0 ppb (21) N/A N/A 14.0 ppb (13) 0.47 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 24, 2021, noon 11.7 ppb (12) 3.6 ppb (4) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 24, 2021, 11 a.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.26 ppb (4) N/A 4.0 μg/m3 (17) 28.0
 
Feb. 24, 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
 
Feb. 24, 2021, 9 a.m. 29.4 ppb (28) 10.0 ppb (10) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (10) 0.48 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Feb. 24, 2021, 8 a.m. 28.2 ppb (27) 9.0 ppb (9) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (11) 0.43 ppb (5) N/A 22.0 μg/m3 (72) 72.0
 
Feb. 24, 2021, 7 a.m. 31.7 ppb (30) 10.0 ppb (10) N/A 22.0 ppb (21) N/A N/A 11.0 ppb (11) 0.51 ppb (6) N/A 20.0 μg/m3 (68) 68.0
 
Feb. 24, 2021, 6 a.m. 28.6 ppb (27) 6.7 ppb (7) N/A 22.0 ppb (21) N/A N/A 10.0 ppb (10) 0.6 ppb (7) N/A 24.0 μg/m3 (77) 77.0
 
Feb. 24, 2021, 5 a.m. 18.9 ppb (18) 2.5 ppb (3) N/A 16.0 ppb (16) N/A N/A 17.0 ppb (16) 0.4 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Feb. 24, 2021, 4 a.m. 34.2 ppb (33) 10.9 ppb (11) N/A 23.0 ppb (22) N/A N/A 13.0 ppb (13) 0.51 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Feb. 24, 2021, 3 a.m. 35.3 ppb (34) 11.2 ppb (11) N/A 24.0 ppb (23) N/A N/A 13.0 ppb (13) 0.59 ppb (7) N/A 19.0 μg/m3 (66) 66.0
 
Feb. 24, 2021, 2 a.m. 37.8 ppb (36) 15.6 ppb (15) N/A 22.0 ppb (21) N/A N/A 15.0 ppb (14) 0.56 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 24, 2021, 1 a.m. 26.7 ppb (26) 14.5 ppb (14) N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) 0.5 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Feb. 24, 2021, midnight 3.7 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.24 ppb (3) N/A 3.0 μg/m3 (13) 41.0
 
Feb. 23, 2021, 11 p.m. 14.5 ppb (14) 4.3 ppb (5) N/A 10.0 ppb (10) N/A N/A 39.0 ppb (37) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 37.0
 
Feb. 23, 2021, 10 p.m. 12.6 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (9) N/A N/A 41.0 ppb (38) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 38.0
 
Feb. 23, 2021, 9 p.m. 12.4 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (9) N/A N/A 41.0 ppb (38) 0.49 ppb (6) N/A 2.0 μg/m3 (9) 38.0
 
Feb. 23, 2021, 8 p.m. 10.6 ppb (10) 3.5 ppb (4) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) 0.41 ppb (5) N/A 4.0 μg/m3 (17) 39.0
 
Feb. 23, 2021, 7 p.m. 5.9 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 39.0
 
Feb. 23, 2021, 6 p.m. 22.1 ppb (21) 11.0 ppb (11) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) 0.36 ppb (5) N/A 3.0 μg/m3 (13) 27.0
 
Feb. 23, 2021, 5 p.m. 48.9 ppb (47) 29.0 ppb (28) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (13) 0.52 ppb (6) N/A 5.0 μg/m3 (21) 47.0
 
Feb. 23, 2021, 4 p.m. 53.0 ppb (50) 32.8 ppb (31) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (9) 0.58 ppb (7) N/A 7.0 μg/m3 (30) 50.0
 
Feb. 23, 2021, 3 p.m. 66.1 ppb (64) 42.3 ppb (40) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) 0.68 ppb (8) N/A 5.0 μg/m3 (21) 64.0
 
Feb. 23, 2021, 2 p.m. 52.0 ppb (50) 29.7 ppb (29) N/A 22.0 ppb (21) N/A N/A 4.0 ppb (4) 0.59 ppb (7) N/A 7.0 μg/m3 (30) 50.0
 
Feb. 23, 2021, 1 p.m. 31.4 ppb (30) 12.1 ppb (12) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (8) 0.53 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 23, 2021, noon 8.0 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 11 a.m. 27.3 ppb (26) 7.7 ppb (8) N/A 20.0 ppb (19) N/A N/A 3.0 ppb (3) 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 23, 2021, 9 a.m. 29.2 ppb (28) 7.3 ppb (7) N/A 22.0 ppb (21) N/A N/A 0.0 ppb (0) 0.63 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 23, 2021, 8 a.m. 30.9 ppb (30) 9.1 ppb (9) N/A 22.0 ppb (21) N/A N/A 0.0 ppb (0) 0.76 ppb (10) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 23, 2021, 7 a.m. 34.5 ppb (33) 13.0 ppb (13) N/A 22.0 ppb (21) N/A N/A 0.0 ppb (0) 0.7 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 6 a.m. 30.5 ppb (29) 9.8 ppb (10) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) 0.56 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 23, 2021, 5 a.m. 21.2 ppb (20) 5.8 ppb (6) N/A 15.0 ppb (15) N/A N/A 12.0 ppb (12) 0.53 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 4 a.m. 26.2 ppb (25) 8.9 ppb (9) N/A 17.0 ppb (17) N/A N/A 11.0 ppb (11) 0.5 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 3 a.m. 27.6 ppb (27) 9.8 ppb (10) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) 0.53 ppb (6) N/A 28.0 μg/m3 (85) 85.0
 
Feb. 23, 2021, 2 a.m. 30.1 ppb (29) 11.1 ppb (11) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (13) 0.56 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 1 a.m. 16.4 ppb (16) 5.8 ppb (6) N/A 11.0 ppb (11) N/A N/A 24.0 ppb (23) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, midnight 27.5 ppb (26) 12.5 ppb (12) N/A 15.0 ppb (15) N/A N/A 25.0 ppb (24) 0.51 ppb (6) N/A 5.0 μg/m3 (21) 26.0
 
Feb. 22, 2021, 11 p.m. 25.2 ppb (24) 11.9 ppb (12) N/A 13.0 ppb (13) N/A N/A 30.0 ppb (28) 0.49 ppb (6) N/A 4.0 μg/m3 (17) 28.0
 
Feb. 22, 2021, 10 p.m. 24.9 ppb (24) 12.2 ppb (12) N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.49 ppb (6) N/A 6.0 μg/m3 (25) 27.0
 
Feb. 22, 2021, 9 p.m. 5.1 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.32 ppb (4) N/A 1.0 μg/m3 (5) 36.0
 
Feb. 22, 2021, 8 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.27 ppb (4) N/A 3.0 μg/m3 (13) 35.0
 
Feb. 22, 2021, 7 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.27 ppb (4) N/A 4.0 μg/m3 (17) 34.0
 
Feb. 22, 2021, 6 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.24 ppb (3) N/A 1.0 μg/m3 (5) 32.0
 
Feb. 22, 2021, 5 p.m. 3.4 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.27 ppb (4) N/A 1.0 μg/m3 (5) 30.0
 
Feb. 22, 2021, 4 p.m. 5.7 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.29 ppb (4) N/A 5.0 μg/m3 (21) 28.0
 
Feb. 22, 2021, 3 p.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.32 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 22, 2021, 2 p.m. 47.4 ppb (45) 25.0 ppb (24) N/A 22.0 ppb (21) N/A N/A 6.0 ppb (6) 0.67 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 22, 2021, 1 p.m. 56.2 ppb (54) 29.6 ppb (28) N/A 27.0 ppb (26) N/A N/A 0.0 ppb (0) 0.79 ppb (10) N/A 10.0 μg/m3 (42) 54.0
 
Feb. 22, 2021, noon 54.5 ppb (52) 27.2 ppb (26) N/A 27.0 ppb (26) N/A N/A 0.0 ppb (0) 0.71 ppb (8) N/A 10.0 μg/m3 (42) 52.0
 
Feb. 22, 2021, 11 a.m. 37.0 ppb (35) 11.7 ppb (12) N/A 25.0 ppb (24) N/A N/A 0.0 ppb (0) 0.63 ppb (7) N/A 8.0 μg/m3 (34) 35.0
 
Feb. 22, 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
 
Feb. 22, 2021, 9 a.m. 38.8 ppb (37) 12.9 ppb (13) N/A 26.0 ppb (25) N/A N/A 0.0 ppb (0) 0.89 ppb (11) N/A 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2021, 8 a.m. 32.5 ppb (31) 7.9 ppb (8) N/A 25.0 ppb (24) N/A N/A 0.0 ppb (0) 0.87 ppb (11) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 22, 2021, 7 a.m. 44.2 ppb (42) 19.0 ppb (18) N/A 25.0 ppb (24) N/A N/A 0.0 ppb (0) 1.07 ppb (13) N/A 18.0 μg/m3 (64) 64.0
 
Feb. 22, 2021, 6 a.m. 33.8 ppb (32) 7.6 ppb (8) N/A 26.0 ppb (25) N/A N/A 0.0 ppb (0) 0.77 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Feb. 22, 2021, 5 a.m. 23.0 ppb (22) 2.4 ppb (3) N/A 21.0 ppb (20) N/A N/A 7.0 ppb (7) 0.63 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2021, 4 a.m. 18.3 ppb (18) 1.2 ppb (2) N/A 17.0 ppb (17) N/A N/A 14.0 ppb (13) 0.45 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 22, 2021, 3 a.m. 15.9 ppb (15) 3.5 ppb (4) N/A 13.0 ppb (13) N/A N/A 21.0 ppb (20) 0.46 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 22, 2021, 2 a.m. 32.7 ppb (31) 11.9 ppb (12) N/A 21.0 ppb (20) N/A N/A 14.0 ppb (13) 0.54 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2021, 1 a.m. 15.2 ppb (15) 6.1 ppb (6) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) 0.44 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 22, 2021, midnight 14.7 ppb (14) 7.8 ppb (8) N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) 0.41 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 21, 2021, 11 p.m. 10.1 ppb (10) 6.1 ppb (6) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.36 ppb (5) N/A 3.0 μg/m3 (13) 28.0
 
Feb. 21, 2021, 10 p.m. 11.3 ppb (11) 7.2 ppb (7) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.38 ppb (5) N/A 5.0 μg/m3 (21) 28.0
 
Feb. 21, 2021, 9 p.m. 11.6 ppb (11) 6.8 ppb (7) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.39 ppb (5) N/A 4.0 μg/m3 (17) 28.0
 
Feb. 21, 2021, 8 p.m. 15.4 ppb (15) 8.1 ppb (8) N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) 0.42 ppb (5) N/A 2.0 μg/m3 (9) 27.0
 
Feb. 21, 2021, 7 p.m. 18.5 ppb (18) 10.8 ppb (11) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.46 ppb (6) N/A 2.0 μg/m3 (9) 23.0
 
Feb. 21, 2021, 6 p.m. 15.1 ppb (15) 8.0 ppb (8) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.45 ppb (6) N/A 3.0 μg/m3 (13) 23.0
 
Feb. 21, 2021, 5 p.m. 7.6 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 23.0
 
Feb. 21, 2021, 4 p.m. 11.4 ppb (11) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) 0.39 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2021, 3 p.m. 10.7 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) 0.41 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 21, 2021, 2 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2021, 1 p.m. 6.3 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (20) 0.36 ppb (5) N/A 4.0 μg/m3 (17) 20.0
 
Feb. 21, 2021, noon 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) 0.34 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 21, 2021, 11 a.m. 4.7 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.35 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (157) 157.0
 
Feb. 21, 2021, 9 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 24.0
 
Feb. 21, 2021, 8 a.m. 10.3 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) 0.5 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2021, 7 a.m. 15.6 ppb (15) 3.8 ppb (4) N/A 12.0 ppb (12) N/A N/A 17.0 ppb (16) 0.52 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 21, 2021, 6 a.m. 26.7 ppb (26) 6.5 ppb (7) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (8) 0.69 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 21, 2021, 5 a.m. 23.3 ppb (22) 4.3 ppb (5) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (9) 0.75 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 21, 2021, 4 a.m. 17.1 ppb (17) 3.1 ppb (3) N/A 14.0 ppb (14) N/A N/A 17.0 ppb (16) 0.54 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 21, 2021, 3 a.m. 26.6 ppb (26) 11.6 ppb (11) N/A 15.0 ppb (15) N/A N/A 19.0 ppb (18) 0.6 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 21, 2021, 2 a.m. 17.8 ppb (17) 8.0 ppb (8) N/A 10.0 ppb (10) N/A N/A 26.0 ppb (25) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2021, 1 a.m. 14.7 ppb (14) 7.8 ppb (8) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 28.0
 
Feb. 21, 2021, midnight 16.7 ppb (16) 8.5 ppb (9) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.48 ppb (6) N/A 1.0 μg/m3 (5) 28.0
 
Feb. 20, 2021, 11 p.m. 17.8 ppb (17) 8.7 ppb (9) N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) 0.48 ppb (6) N/A 2.0 μg/m3 (9) 29.0
 
Feb. 20, 2021, 10 p.m. 18.5 ppb (18) 8.9 ppb (9) N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) 0.46 ppb (6) N/A 2.0 μg/m3 (9) 29.0
 
Feb. 20, 2021, 9 p.m. 16.1 ppb (16) 7.8 ppb (8) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.43 ppb (5) N/A 3.0 μg/m3 (13) 30.0
 
Feb. 20, 2021, 8 p.m. 15.0 ppb (15) 6.8 ppb (7) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.41 ppb (5) N/A 4.0 μg/m3 (17) 30.0
 
Feb. 20, 2021, 7 p.m. 15.6 ppb (15) 7.2 ppb (7) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.44 ppb (5) N/A 5.0 μg/m3 (21) 30.0
 
Feb. 20, 2021, 6 p.m. 20.5 ppb (20) 10.0 ppb (10) N/A 10.0 ppb (10) N/A N/A 29.0 ppb (27) 0.48 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 5 p.m. 15.9 ppb (15) 8.5 ppb (9) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.48 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 20, 2021, 4 p.m. 20.3 ppb (20) 12.1 ppb (12) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.48 ppb (6) N/A 6.0 μg/m3 (25) 28.0
 
Feb. 20, 2021, 3 p.m. 20.2 ppb (20) 10.5 ppb (10) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) 0.49 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 20, 2021, 2 p.m. 13.5 ppb (13) 6.5 ppb (7) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) 0.44 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 1 p.m. 11.6 ppb (11) 4.9 ppb (5) N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 32.0
 
Feb. 20, 2021, noon 4.7 ppb (5) 3.1 ppb (3) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 37.0
 
Feb. 20, 2021, 11 a.m. 2.9 ppb (3) 1.5 ppb (2) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.32 ppb (4) N/A 6.0 μg/m3 (25) 38.0
 
Feb. 20, 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
 
Feb. 20, 2021, 9 a.m. 3.0 ppb (3) 1.7 ppb (2) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.35 ppb (4) N/A 3.0 μg/m3 (13) 38.0
 
Feb. 20, 2021, 8 a.m. 8.0 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.39 ppb (5) N/A 4.0 μg/m3 (17) 33.0
 
Feb. 20, 2021, 7 a.m. 11.9 ppb (12) 4.5 ppb (5) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.45 ppb (6) N/A 5.0 μg/m3 (21) 30.0
 
Feb. 20, 2021, 6 a.m. 10.4 ppb (10) 4.8 ppb (5) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.43 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 5 a.m. 10.8 ppb (11) 5.2 ppb (5) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) 0.48 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 4 a.m. 10.8 ppb (11) 5.6 ppb (6) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) 0.43 ppb (5) N/A 5.0 μg/m3 (21) 30.0
 
Feb. 20, 2021, 3 a.m. 13.5 ppb (13) 7.3 ppb (7) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.39 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 20, 2021, 2 a.m. 20.4 ppb (20) 11.8 ppb (12) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.38 ppb (5) N/A 5.0 μg/m3 (21) 25.0
 
Feb. 20, 2021, 1 a.m. 20.0 ppb (19) 9.8 ppb (10) N/A 10.0 ppb (10) N/A N/A 26.0 ppb (25) 0.38 ppb (5) N/A 3.0 μg/m3 (13) 25.0
 
Feb. 20, 2021, midnight 24.8 ppb (24) 12.6 ppb (12) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) 0.42 ppb (5) N/A 3.0 μg/m3 (13) 24.0
 
Feb. 19, 2021, 11 p.m. 21.7 ppb (21) 13.0 ppb (13) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) 0.39 ppb (5) N/A 0.0 μg/m3 (0) 23.0
 
Feb. 19, 2021, 10 p.m. 22.0 ppb (21) 12.2 ppb (12) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.37 ppb (5) N/A 2.0 μg/m3 (9) 23.0
 
Feb. 19, 2021, 9 p.m. 33.5 ppb (32) 18.1 ppb (18) N/A 15.0 ppb (15) N/A N/A 20.0 ppb (19) 0.43 ppb (5) N/A 6.0 μg/m3 (25) 32.0
 
Feb. 19, 2021, 8 p.m. 50.1 ppb (48) 27.5 ppb (26) N/A 23.0 ppb (22) N/A N/A 11.0 ppb (11) 0.54 ppb (6) N/A 8.0 μg/m3 (34) 48.0
 
Feb. 19, 2021, 7 p.m. 75.1 ppb (74) 45.9 ppb (44) N/A 29.0 ppb (28) N/A N/A 5.0 ppb (5) 0.65 ppb (8) N/A 9.0 μg/m3 (38) 74.0
 
Feb. 19, 2021, 6 p.m. 62.7 ppb (61) 33.1 ppb (32) N/A 30.0 ppb (29) N/A N/A 5.0 ppb (5) 0.56 ppb (7) N/A 7.0 μg/m3 (30) 61.0
 
Feb. 19, 2021, 5 p.m. 72.3 ppb (71) 41.2 ppb (39) N/A 31.0 ppb (30) N/A N/A 4.0 ppb (4) 0.55 ppb (7) N/A 8.0 μg/m3 (34) 71.0
 
Feb. 19, 2021, 4 p.m. 50.2 ppb (48) 24.7 ppb (24) N/A 26.0 ppb (25) N/A N/A 7.0 ppb (7) 0.54 ppb (6) N/A 6.0 μg/m3 (25) 48.0
 
Feb. 19, 2021, 3 p.m. 22.4 ppb (22) 7.3 ppb (7) N/A 15.0 ppb (15) N/A N/A 14.0 ppb (13) 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 19, 2021, 2 p.m. 28.3 ppb (27) 11.7 ppb (12) N/A 17.0 ppb (17) N/A N/A 14.0 ppb (13) 0.42 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 19, 2021, 1 p.m. 8.4 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) 0.32 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 19, 2021, noon 6.8 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.29 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 19, 2021, 11 a.m. 7.0 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) 0.25 ppb (3) N/A 3.0 μg/m3 (13) 25.0
 
Feb. 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
 
Feb. 19, 2021, 9 a.m. 16.8 ppb (16) 0.3 ppb (1) N/A 17.0 ppb (17) N/A N/A 18.0 ppb (17) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 19, 2021, 8 a.m. 13.3 ppb (13) 0.5 ppb (1) N/A 13.0 ppb (13) N/A N/A 23.0 ppb (22) 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 19, 2021, 7 a.m. 12.8 ppb (13) 1.8 ppb (2) N/A 11.0 ppb (11) N/A N/A 26.0 ppb (25) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 19, 2021, 6 a.m. 13.8 ppb (14) 4.4 ppb (5) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 26.0
 
Feb. 19, 2021, 5 a.m. 15.7 ppb (15) 6.4 ppb (7) N/A 9.0 ppb (9) N/A N/A 27.0 ppb (25) 0.39 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 19, 2021, 4 a.m. 22.3 ppb (22) 5.9 ppb (6) N/A 16.0 ppb (16) N/A N/A 20.0 ppb (19) 0.48 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 19, 2021, 3 a.m. 20.5 ppb (20) 6.5 ppb (7) N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) 0.44 ppb (5) N/A 4.0 μg/m3 (17) 23.0
 
Feb. 19, 2021, 2 a.m. 21.2 ppb (20) 9.2 ppb (9) N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) 0.39 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 19, 2021, 1 a.m. 29.3 ppb (28) 11.5 ppb (11) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (23) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 28.0
 
Feb. 19, 2021, midnight 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
 
Feb. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 18, 2021, 10 p.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
 
Feb. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Feb. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0