AQSQID: 060010013

Site Name: Berkeley Aquatic Park

Location: Berkeley (No. 2), CA

Reporting: True, Located: True

Current AQI: 25.0

Berkeley (No. 2) CA, US: 37.864767, -122.302741

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 21, 2019, 11 p.m. 18.9 ppb (18) 9.9 ppb (9) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) 0.47 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 10 p.m. 14.6 ppb (14) 8.0 ppb (7) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.43 ppb (5) N/A 6.0 μg/m3 (25) 26.0
 
May 21, 2019, 9 p.m. 23.1 ppb (21) 12.1 ppb (11) N/A 11.0 ppb (10) N/A N/A 32.0 ppb (25) 0.49 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 21, 2019, 8 p.m. 24.8 ppb (23) 12.5 ppb (12) N/A 12.0 ppb (11) N/A N/A 32.0 ppb (25) 0.5 ppb (6) N/A 3.0 μg/m3 (12) 25.0
 
May 21, 2019, 7 p.m. 28.3 ppb (26) 14.8 ppb (14) N/A 14.0 ppb (13) N/A N/A 30.0 ppb (23) 0.53 ppb (6) N/A 5.0 μg/m3 (21) 26.0
 
May 21, 2019, 6 p.m. 24.5 ppb (23) 14.9 ppb (14) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.51 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
May 21, 2019, 5 p.m. 32.5 ppb (30) 17.9 ppb (17) N/A 15.0 ppb (14) N/A N/A 27.0 ppb (21) 0.57 ppb (6) N/A 4.0 μg/m3 (17) 30.0
 
May 21, 2019, 4 p.m. 35.6 ppb (33) 19.7 ppb (18) N/A 16.0 ppb (15) N/A N/A 23.0 ppb (18) 0.5 ppb (6) N/A 4.0 μg/m3 (17) 33.0
 
May 21, 2019, 3 p.m. 43.0 ppb (40) 20.2 ppb (19) N/A 23.0 ppb (21) N/A N/A 19.0 ppb (15) 0.58 ppb (6) N/A 4.0 μg/m3 (17) 40.0
 
May 21, 2019, 2 p.m. 41.5 ppb (38) 24.3 ppb (23) N/A 17.0 ppb (16) N/A N/A 22.0 ppb (17) 0.6 ppb (7) N/A 6.0 μg/m3 (25) 38.0
 
May 21, 2019, 1 p.m. 45.1 ppb (42) 25.1 ppb (23) N/A 20.0 ppb (19) N/A N/A 22.0 ppb (17) 1.08 ppb (12) N/A 8.0 μg/m3 (33) 42.0
 
May 21, 2019, noon 32.4 ppb (30) 15.5 ppb (14) N/A 17.0 ppb (16) N/A N/A 29.0 ppb (22) 0.71 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
May 21, 2019, 11 a.m. 23.8 ppb (22) 9.8 ppb (9) N/A 14.0 ppb (13) N/A N/A 29.0 ppb (22) 0.48 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
May 21, 2019, 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
 
May 21, 2019, 9 a.m. 7.4 ppb (7) 3.4 ppb (3) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 29.0
 
May 21, 2019, 8 a.m. 5.7 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.43 ppb (5) N/A 5.0 μg/m3 (21) 28.0
 
May 19, 2019, 7 p.m. 7.3 ppb (7) 3.8 ppb (4) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) 0.53 ppb (6) N/A 5.0 μg/m3 (21) 33.0
 
May 19, 2019, 6 p.m. 9.8 ppb (9) 4.2 ppb (4) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) 0.52 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
May 19, 2019, 5 p.m. 11.0 ppb (10) 5.4 ppb (5) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.59 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2019, 4 p.m. 8.4 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 37.0 ppb (28) 0.58 ppb (6) N/A 6.0 μg/m3 (25) 28.0
 
May 19, 2019, 3 p.m. 7.7 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 38.0 ppb (29) 0.55 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
May 19, 2019, 2 p.m. 6.6 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) 0.51 ppb (6) N/A 7.0 μg/m3 (29) 32.0
 
May 19, 2019, 1 p.m. 7.1 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2019, noon 10.6 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) 0.47 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2019, 11 a.m. 8.7 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 37.0 ppb (28) 0.5 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
May 19, 2019, 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
 
May 19, 2019, 9 a.m. 4.8 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.52 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
May 19, 2019, 8 a.m. 6.1 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 0.54 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
May 19, 2019, 7 a.m. 10.0 ppb (9) 3.2 ppb (3) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) 0.57 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
May 19, 2019, 6 a.m. 9.9 ppb (9) 2.3 ppb (2) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.56 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
May 19, 2019, 5 a.m. 6.9 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) 0.49 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 19, 2019, 4 a.m. 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
May 19, 2019, 3 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.51 ppb (6) N/A 5.0 μg/m3 (21) 23.0
 
May 19, 2019, 2 a.m. 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.48 ppb (5) N/A 3.0 μg/m3 (12) 24.0
 
May 19, 2019, 1 a.m. 5.4 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.46 ppb (5) N/A 3.0 μg/m3 (12) 25.0
 
May 19, 2019, midnight 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.43 ppb (5) N/A 6.0 μg/m3 (25) 26.0
 
May 18, 2019, 11 p.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.41 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 10 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 9 p.m. 4.8 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.41 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 8 p.m. 5.8 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
May 18, 2019, 7 p.m. 4.4 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
May 18, 2019, 6 p.m. 18.5 ppb (17) 7.3 ppb (7) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.47 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
May 18, 2019, 5 p.m. 20.0 ppb (19) 7.7 ppb (7) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
May 18, 2019, 4 p.m. 9.4 ppb (9) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.43 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 3 p.m. 8.1 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
May 18, 2019, 2 p.m. 12.0 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.48 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
May 18, 2019, 1 p.m. 11.1 ppb (10) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.49 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
May 18, 2019, noon 10.0 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.46 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
May 18, 2019, 11 a.m. 18.6 ppb (17) 6.5 ppb (6) N/A 12.0 ppb (11) N/A N/A 22.0 ppb (17) 0.51 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
May 18, 2019, 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
 
May 18, 2019, 9 a.m. 7.5 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.47 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
May 18, 2019, 8 a.m. 9.1 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.47 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 7 a.m. 13.9 ppb (13) 4.4 ppb (4) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) 0.56 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 6 a.m. 17.4 ppb (16) 5.4 ppb (5) N/A 12.0 ppb (11) N/A N/A 21.0 ppb (16) 0.58 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
May 18, 2019, 5 a.m. 20.9 ppb (19) 9.6 ppb (9) N/A 11.0 ppb (10) N/A N/A 23.0 ppb (18) 0.61 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2019, 4 a.m. 24.8 ppb (23) 11.5 ppb (11) N/A 13.0 ppb (12) N/A N/A 23.0 ppb (18) 0.55 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 3 a.m. 17.4 ppb (16) 8.9 ppb (8) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.44 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
May 18, 2019, 2 a.m. 11.9 ppb (11) 7.0 ppb (6) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.41 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
May 18, 2019, 1 a.m. 10.8 ppb (10) 6.2 ppb (6) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 24.0
 
May 18, 2019, midnight 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
 
May 17, 2019, 11 p.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
 
May 17, 2019, 10 p.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
 
May 17, 2019, 9 p.m. 23.0 ppb (21) 14.0 ppb (13) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.54 ppb (6) N/A 5.0 μg/m3 (21) 23.0
 
May 17, 2019, 8 p.m. 21.7 ppb (20) 11.5 ppb (11) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) 0.55 ppb (6) N/A 4.0 μg/m3 (17) 24.0
 
May 17, 2019, 7 p.m. 26.8 ppb (25) 13.7 ppb (13) N/A 13.0 ppb (12) N/A N/A 30.0 ppb (23) 0.59 ppb (7) N/A 7.0 μg/m3 (29) 29.0
 
May 17, 2019, 6 p.m. 28.4 ppb (26) 15.3 ppb (14) N/A 13.0 ppb (12) N/A N/A 29.0 ppb (22) 0.57 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
May 17, 2019, 5 p.m. 40.5 ppb (38) 18.5 ppb (17) N/A 22.0 ppb (20) N/A N/A 24.0 ppb (18) 0.44 ppb (5) N/A 7.0 μg/m3 (29) 38.0
 
May 17, 2019, 4 p.m. 40.0 ppb (37) 20.3 ppb (19) N/A 20.0 ppb (19) N/A N/A 25.0 ppb (19) 0.47 ppb (5) N/A 8.0 μg/m3 (33) 37.0
 
May 17, 2019, 3 p.m. 37.9 ppb (35) 18.8 ppb (17) N/A 19.0 ppb (18) N/A N/A 24.0 ppb (18) 0.56 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
May 17, 2019, 2 p.m. 46.4 ppb (43) 23.3 ppb (22) N/A 23.0 ppb (21) N/A N/A 20.0 ppb (15) 0.62 ppb (7) N/A 10.0 μg/m3 (42) 43.0
 
May 17, 2019, 1 p.m. 51.6 ppb (48) 26.1 ppb (24) N/A 25.0 ppb (23) N/A N/A 19.0 ppb (15) 0.7 ppb (8) N/A 8.0 μg/m3 (33) 48.0
 
May 17, 2019, noon 45.4 ppb (42) 22.4 ppb (21) N/A 23.0 ppb (21) N/A N/A 20.0 ppb (15) 0.67 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
May 17, 2019, 11 a.m. 33.3 ppb (31) 15.4 ppb (14) N/A 18.0 ppb (17) N/A N/A 22.0 ppb (17) 0.57 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
May 17, 2019, 10 a.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
 
May 17, 2019, 9 a.m. 6.3 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.46 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
May 17, 2019, 8 a.m. 6.5 ppb (6) 3.3 ppb (3) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.47 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
May 17, 2019, 7 a.m. 7.6 ppb (7) 3.4 ppb (3) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.47 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
May 17, 2019, 6 a.m. 11.9 ppb (11) 5.1 ppb (5) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
May 17, 2019, 5 a.m. 10.1 ppb (9) 5.1 ppb (5) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.47 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
May 17, 2019, 4 a.m. 9.5 ppb (9) 5.0 ppb (5) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.46 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
May 17, 2019, 3 a.m. 9.5 ppb (9) 4.5 ppb (4) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.41 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
May 17, 2019, 2 a.m. 12.5 ppb (12) 6.4 ppb (6) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.38 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 17, 2019, 1 a.m. 13.2 ppb (12) 7.4 ppb (7) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 17, 2019, midnight 10.6 ppb (10) 6.4 ppb (6) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 11 p.m. 12.2 ppb (11) 6.5 ppb (6) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 10 p.m. 12.4 ppb (11) 6.6 ppb (6) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 9 p.m. 21.6 ppb (20) 10.4 ppb (10) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
May 16, 2019, 8 p.m. 21.9 ppb (20) 12.5 ppb (12) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
May 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 16, 2019, 5 p.m. 18.8 ppb (17) 10.6 ppb (10) N/A 12.0 ppb (11) N/A N/A 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 16, 2019, 4 p.m. 22.8 ppb (21) 11.8 ppb (11) N/A 11.0 ppb (10) N/A N/A 35.0 ppb (27) 0.48 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 16, 2019, 3 p.m. 20.2 ppb (19) 10.2 ppb (9) N/A 10.0 ppb (9) N/A N/A 36.0 ppb (28) 0.51 ppb (6) N/A 6.0 μg/m3 (25) 28.0
 
May 16, 2019, 2 p.m. 28.2 ppb (26) 12.6 ppb (12) N/A 16.0 ppb (15) N/A N/A 30.0 ppb (23) 0.56 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
May 16, 2019, 1 p.m. 23.0 ppb (21) 11.4 ppb (11) N/A 12.0 ppb (11) N/A N/A 33.0 ppb (25) 0.56 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
May 16, 2019, noon 25.1 ppb (23) 11.2 ppb (10) N/A 14.0 ppb (13) N/A N/A 32.0 ppb (25) 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
May 16, 2019, 11 a.m. 14.2 ppb (13) 7.5 ppb (7) N/A 7.0 ppb (6) N/A N/A 37.0 ppb (28) 0.47 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
May 16, 2019, 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 (29) 29.0
 
May 16, 2019, 9 a.m. 7.6 ppb (7) 3.3 ppb (3) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.44 ppb (5) N/A 8.0 μg/m3 (33) 34.0
 
May 16, 2019, 8 a.m. 3.5 ppb (3) 2.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.43 ppb (5) N/A 8.0 μg/m3 (33) 35.0
 
May 16, 2019, 7 a.m. 5.1 ppb (5) 3.3 ppb (3) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.41 ppb (5) N/A 3.0 μg/m3 (12) 32.0
 
May 16, 2019, 6 a.m. 6.3 ppb (6) 3.1 ppb (3) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 28.0
 
May 16, 2019, 5 a.m. 3.0 ppb (3) 2.5 ppb (2) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) 0.37 ppb (4) N/A 5.0 μg/m3 (21) 25.0
 
May 16, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 25.0 ppb (19) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 19.0
 
May 16, 2019, 3 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 25.0 ppb (19) 0.32 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
May 16, 2019, 2 a.m. 3.4 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
May 16, 2019, 1 a.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.31 ppb (3) N/A 2.0 μg/m3 (8) 17.0
 
May 16, 2019, midnight 4.0 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
May 15, 2019, 11 p.m. 9.5 ppb (9) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
May 15, 2019, 10 p.m. 4.3 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 21.0
 
May 15, 2019, 9 p.m. 12.5 ppb (12) 5.2 ppb (5) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 18.0
 
May 15, 2019, 8 p.m. 6.9 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 7 p.m. 6.2 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 6 p.m. 8.1 ppb (8) 2.7 ppb (3) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.31 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 5 p.m. 13.8 ppb (13) 4.5 ppb (4) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
May 15, 2019, 4 p.m. 17.3 ppb (16) 4.3 ppb (4) N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) 0.46 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
May 15, 2019, 3 p.m. 17.0 ppb (16) 3.3 ppb (3) N/A 14.0 ppb (13) N/A N/A 8.0 ppb (6) 0.46 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 2 p.m. 27.1 ppb (25) 12.0 ppb (11) N/A 15.0 ppb (14) N/A N/A 10.0 ppb (8) 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 1 p.m. 21.4 ppb (20) 6.6 ppb (6) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
May 15, 2019, noon 6.6 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 11 a.m. 14.2 ppb (13) 4.4 ppb (4) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 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
 
May 15, 2019, 9 a.m. 8.1 ppb (8) 3.6 ppb (3) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.32 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 8 a.m. 9.4 ppb (9) 3.9 ppb (4) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 15, 2019, 7 a.m. 8.0 ppb (7) 3.9 ppb (4) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 6 a.m. 8.9 ppb (8) 5.5 ppb (5) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.37 ppb (4) N/A 2.0 μg/m3 (8) 20.0
 
May 15, 2019, 5 a.m. 15.9 ppb (15) 7.8 ppb (7) N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) 0.45 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 4 a.m. 18.9 ppb (18) 9.1 ppb (8) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
May 15, 2019, 3 a.m. 13.3 ppb (12) 7.1 ppb (7) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.36 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 15, 2019, 2 a.m. 14.2 ppb (13) 8.5 ppb (8) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 1 a.m. 10.7 ppb (10) 7.6 ppb (7) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, midnight 15.7 ppb (15) 9.4 ppb (9) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 11 p.m. 22.2 ppb (21) 12.0 ppb (11) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 10 p.m. 16.5 ppb (15) 11.0 ppb (10) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.48 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
May 14, 2019, 9 p.m. 20.7 ppb (19) 14.2 ppb (13) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.59 ppb (7) N/A 4.0 μg/m3 (17) 19.0
 
May 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 14, 2019, 5 p.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
 
May 14, 2019, 4 p.m. 37.7 ppb (35) 19.6 ppb (18) N/A 18.0 ppb (17) N/A N/A 21.0 ppb (16) 0.49 ppb (5) N/A 4.0 μg/m3 (17) 35.0
 
May 14, 2019, 3 p.m. 38.1 ppb (35) 18.6 ppb (17) N/A 20.0 ppb (19) N/A N/A 21.0 ppb (16) 0.55 ppb (6) N/A 6.0 μg/m3 (25) 35.0
 
May 14, 2019, 2 p.m. 37.7 ppb (35) 18.6 ppb (17) N/A 19.0 ppb (18) N/A N/A 20.0 ppb (15) 0.58 ppb (6) N/A 5.0 μg/m3 (21) 35.0
 
May 14, 2019, 1 p.m. 35.1 ppb (32) 18.0 ppb (17) N/A 17.0 ppb (16) N/A N/A 22.0 ppb (17) 0.56 ppb (6) N/A 3.0 μg/m3 (12) 32.0
 
May 14, 2019, noon 28.9 ppb (27) 15.6 ppb (14) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.54 ppb (6) N/A 5.0 μg/m3 (21) 27.0
 
May 14, 2019, 11 a.m. 20.2 ppb (19) 10.1 ppb (9) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.46 ppb (5) N/A 4.0 μg/m3 (17) 20.0
 
May 14, 2019, 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
 
May 14, 2019, 9 a.m. 7.6 ppb (7) 3.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.45 ppb (5) N/A 3.0 μg/m3 (12) 23.0
 
May 14, 2019, 8 a.m. 5.9 ppb (5) 3.1 ppb (3) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 0.46 ppb (5) N/A 5.0 μg/m3 (21) 23.0
 
May 14, 2019, 7 a.m. 10.9 ppb (10) 5.8 ppb (5) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.47 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 6 a.m. 10.3 ppb (10) 4.9 ppb (5) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.46 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
May 14, 2019, 5 a.m. 13.4 ppb (12) 6.9 ppb (6) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
May 14, 2019, 4 a.m. 11.8 ppb (11) 6.4 ppb (6) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.44 ppb (5) N/A 4.0 μg/m3 (17) 20.0
 
May 14, 2019, 3 a.m. 10.4 ppb (10) 5.4 ppb (5) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 2 a.m. 12.7 ppb (12) 6.8 ppb (6) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.38 ppb (4) N/A 4.0 μg/m3 (17) 18.0
 
May 14, 2019, 1 a.m. 12.6 ppb (12) 7.8 ppb (7) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.42 ppb (5) N/A 3.0 μg/m3 (12) 19.0
 
May 14, 2019, midnight 12.7 ppb (12) 7.3 ppb (7) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.51 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
May 13, 2019, 11 p.m. 15.4 ppb (14) 9.1 ppb (8) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.54 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
May 13, 2019, 10 p.m. 19.7 ppb (18) 12.5 ppb (12) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 0.52 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
May 13, 2019, 9 p.m. 22.1 ppb (20) 13.7 ppb (13) N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.48 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
May 13, 2019, 8 p.m. 23.7 ppb (22) 14.2 ppb (13) N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) 0.49 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 13, 2019, 7 p.m. 25.0 ppb (23) 14.8 ppb (14) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.48 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
May 13, 2019, 6 p.m. 30.1 ppb (28) 16.7 ppb (15) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.44 ppb (5) N/A 6.0 μg/m3 (25) 28.0
 
May 13, 2019, 5 p.m. 30.0 ppb (28) 16.5 ppb (15) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) 0.45 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
May 13, 2019, 4 p.m. 32.6 ppb (30) 18.1 ppb (17) N/A 15.0 ppb (14) N/A N/A 19.0 ppb (15) 0.48 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
May 13, 2019, 3 p.m. 32.7 ppb (30) 17.1 ppb (16) N/A 16.0 ppb (15) N/A N/A 18.0 ppb (14) 0.52 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
May 13, 2019, 2 p.m. 36.1 ppb (33) 19.6 ppb (18) N/A 17.0 ppb (16) N/A N/A 17.0 ppb (13) 0.55 ppb (6) N/A 7.0 μg/m3 (29) 33.0
 
May 13, 2019, 1 p.m. 41.2 ppb (38) 21.7 ppb (20) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (12) 0.6 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
May 13, 2019, noon 33.8 ppb (31) 16.0 ppb (15) N/A 18.0 ppb (17) N/A N/A 17.0 ppb (13) 0.54 ppb (6) N/A 6.0 μg/m3 (25) 31.0