ID: 153

AQSQID: 060372005

Site Name: Pasadena

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

Updated: April 22, 2021, 10:44 a.m.

Location: Pasadena (S), CA

Reporting: True, Located: True

Current AQI: 33.0

Pasadena (S) CA, US: 34.13263, -118.127142

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 22, 2021, 9 a.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.18 ppb (3) N/A N/A 33.0
 
April 22, 2021, 8 a.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A N/A 33.0
 
April 22, 2021, 7 a.m. 3.8 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.2 ppb (3) N/A N/A 33.0
 
April 22, 2021, 6 a.m. 3.8 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A N/A 33.0
 
April 22, 2021, 5 a.m. 3.7 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.18 ppb (3) N/A N/A 34.0
 
April 22, 2021, 4 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.19 ppb (3) N/A N/A 35.0
 
April 22, 2021, 3 a.m. 4.8 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) 0.19 ppb (3) N/A N/A 36.0
 
April 22, 2021, 2 a.m. 5.4 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) 0.2 ppb (3) N/A N/A 37.0
 
April 22, 2021, 1 a.m. 5.5 ppb (6) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (38) 0.23 ppb (3) N/A N/A 38.0
 
April 22, 2021, midnight 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) 0.21 ppb (3) N/A N/A 39.0
 
April 21, 2021, 11 p.m. 6.0 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) 0.2 ppb (3) N/A N/A 39.0
 
April 21, 2021, 10 p.m. 5.7 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) 0.2 ppb (3) N/A N/A 41.0
 
April 21, 2021, 9 p.m. 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) 0.17 ppb (3) N/A N/A 44.0
 
April 21, 2021, 8 p.m. 3.3 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.16 ppb (3) N/A N/A 43.0
 
April 21, 2021, 7 p.m. 3.6 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) 0.17 ppb (3) N/A N/A 42.0
 
April 21, 2021, 6 p.m. 4.6 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.18 ppb (3) N/A N/A 38.0
 
April 21, 2021, 5 p.m. 4.1 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.17 ppb (3) N/A N/A 38.0
 
April 21, 2021, 4 p.m. 4.4 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.17 ppb (3) N/A N/A 38.0
 
April 21, 2021, 3 p.m. 3.9 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.17 ppb (3) N/A N/A 38.0
 
April 21, 2021, 2 p.m. 4.7 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.16 ppb (3) N/A N/A 33.0
 
April 21, 2021, 1 p.m. 3.3 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
April 21, 2021, noon 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) N/A N/A 34.0
 
April 21, 2021, 11 a.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.14 ppb (2) N/A N/A 36.0
 
April 21, 2021, 10 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.14 ppb (2) N/A N/A 38.0
 
April 21, 2021, 9 a.m. 1.4 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) 0.14 ppb (2) N/A N/A 37.0
 
April 21, 2021, 8 a.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.14 ppb (2) N/A N/A 36.0
 
April 21, 2021, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.15 ppb (2) N/A N/A 36.0
 
April 21, 2021, 6 a.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.15 ppb (2) N/A N/A 34.0
 
April 21, 2021, 5 a.m. 3.2 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.15 ppb (2) N/A N/A 31.0
 
April 21, 2021, 4 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.16 ppb (3) N/A N/A 31.0
 
April 21, 2021, 3 a.m. 6.8 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.19 ppb (3) N/A N/A 30.0
 
April 21, 2021, 2 a.m. 8.2 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) 0.21 ppb (3) N/A N/A 34.0
 
April 21, 2021, 1 a.m. 7.3 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) 0.2 ppb (3) N/A N/A 40.0
 
April 21, 2021, midnight 7.4 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 49.0 ppb (46) 0.2 ppb (3) N/A N/A 46.0
 
April 20, 2021, 11 p.m. 7.0 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (51) 0.21 ppb (3) N/A N/A 51.0
 
April 20, 2021, 10 p.m. 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 58.0 ppb (61) 0.21 ppb (3) N/A N/A 61.0
 
April 20, 2021, 9 p.m. 6.5 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 61.0 ppb (71) 0.22 ppb (3) N/A N/A 71.0
 
April 20, 2021, 8 p.m. 7.4 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 61.0 ppb (71) 0.25 ppb (3) N/A N/A 71.0
 
April 20, 2021, 7 p.m. 10.6 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A N/A 54.0 ppb (50) 0.3 ppb (4) N/A N/A 50.0
 
April 20, 2021, 6 p.m. 12.1 ppb (12) 2.2 ppb (3) N/A 10.0 ppb (10) N/A N/A 47.0 ppb (44) 0.29 ppb (4) N/A N/A 44.0
 
April 20, 2021, 5 p.m. 13.6 ppb (13) 3.1 ppb (3) N/A 11.0 ppb (11) N/A N/A 38.0 ppb (36) 0.28 ppb (4) N/A N/A 36.0
 
April 20, 2021, 4 p.m. 12.7 ppb (12) 3.1 ppb (3) N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) 0.27 ppb (4) N/A N/A 30.0
 
April 20, 2021, 3 p.m. 10.4 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) 0.25 ppb (3) N/A N/A 27.0
 
April 20, 2021, 2 p.m. 9.2 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.22 ppb (3) N/A N/A 24.0
 
April 20, 2021, 1 p.m. 9.9 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 22.0 ppb (21) 0.22 ppb (3) N/A N/A 21.0
 
April 20, 2021, noon 13.5 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (13) N/A N/A 16.0 ppb (15) 0.25 ppb (3) N/A N/A 15.0
 
April 20, 2021, 11 a.m. 13.4 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (13) N/A N/A 14.0 ppb (13) 0.27 ppb (4) N/A N/A 13.0
 
April 20, 2021, 10 a.m. 10.4 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 18.0 ppb (17) 0.25 ppb (3) N/A N/A 17.0
 
April 20, 2021, 9 a.m. 8.9 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 23.0 ppb (22) 0.25 ppb (3) N/A N/A 22.0
 
April 20, 2021, 8 a.m. 7.8 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) 0.24 ppb (3) N/A N/A 25.0
 
April 20, 2021, 7 a.m. 9.3 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A N/A 27.0 ppb (25) 0.24 ppb (3) N/A N/A 25.0
 
April 20, 2021, 6 a.m. 7.3 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.24 ppb (3) N/A N/A 30.0
 
April 20, 2021, 5 a.m. 6.7 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.23 ppb (3) N/A N/A 34.0
 
April 20, 2021, 4 a.m. 12.1 ppb (12) 0.2 ppb (1) N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) 0.27 ppb (4) N/A N/A 27.0
 
April 20, 2021, 3 a.m. 11.4 ppb (11) 0.1 ppb (1) N/A 11.0 ppb (11) N/A N/A 37.0 ppb (35) 0.28 ppb (4) N/A N/A 35.0
 
April 20, 2021, 2 a.m. 5.1 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (50) 0.22 ppb (3) N/A N/A 50.0
 
April 20, 2021, 1 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 60.0 ppb (68) 0.21 ppb (3) N/A N/A 68.0
 
April 20, 2021, midnight 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 63.0 ppb (78) 0.2 ppb (3) N/A N/A 78.0
 
April 19, 2021, 11 p.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (91) 0.21 ppb (3) N/A N/A 91.0
 
April 19, 2021, 10 p.m. 5.3 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 67.0 ppb (91) 0.21 ppb (3) N/A N/A 91.0
 
April 19, 2021, 9 p.m. 11.0 ppb (11) 1.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 63.0 ppb (78) 0.26 ppb (4) N/A N/A 78.0
 
April 19, 2021, 8 p.m. 21.2 ppb (20) 2.4 ppb (3) N/A 19.0 ppb (18) N/A N/A 63.0 ppb (78) 0.47 ppb (6) N/A N/A 78.0
 
April 19, 2021, 7 p.m. 23.8 ppb (23) 3.7 ppb (4) N/A 20.0 ppb (19) N/A N/A 53.0 ppb (50) 0.4 ppb (5) N/A N/A 50.0
 
April 19, 2021, 6 p.m. 12.3 ppb (12) 1.9 ppb (2) N/A 10.0 ppb (10) N/A N/A 54.0 ppb (50) 0.28 ppb (4) N/A N/A 50.0
 
April 19, 2021, 5 p.m. 5.8 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (50) 0.22 ppb (3) N/A N/A 50.0
 
April 19, 2021, 4 p.m. 8.1 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 48.0 ppb (45) 0.24 ppb (3) N/A N/A 45.0
 
April 19, 2021, 3 p.m. 25.7 ppb (25) 6.4 ppb (7) N/A 19.0 ppb (18) N/A N/A 31.0 ppb (29) 0.47 ppb (6) N/A N/A 29.0
 
April 19, 2021, 2 p.m. 48.2 ppb (46) 14.1 ppb (14) N/A 34.0 ppb (33) N/A N/A 9.0 ppb (9) 0.63 ppb (7) N/A N/A 46.0
 
April 19, 2021, 1 p.m. 40.3 ppb (39) 6.6 ppb (7) N/A 34.0 ppb (33) N/A N/A 4.0 ppb (4) 0.46 ppb (6) N/A N/A 39.0
 
April 19, 2021, noon 20.3 ppb (20) 0.5 ppb (1) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (13) 0.31 ppb (4) N/A N/A 20.0
 
April 19, 2021, 11 a.m. 13.9 ppb (14) 0.2 ppb (1) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) 0.28 ppb (4) N/A N/A 22.0
 
April 19, 2021, 10 a.m. 15.5 ppb (15) 0.3 ppb (1) N/A 15.0 ppb (15) N/A N/A 20.0 ppb (19) 0.33 ppb (4) N/A N/A 19.0
 
April 19, 2021, 9 a.m. 14.4 ppb (14) 0.2 ppb (1) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) 0.36 ppb (5) N/A N/A 22.0
 
April 19, 2021, 8 a.m. 19.8 ppb (19) 0.3 ppb (1) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (14) 0.43 ppb (5) N/A N/A 19.0
 
April 19, 2021, 7 a.m. 24.3 ppb (23) 0.4 ppb (1) N/A 24.0 ppb (23) N/A N/A 12.0 ppb (12) 0.46 ppb (6) N/A N/A 23.0
 
April 19, 2021, 6 a.m. 25.1 ppb (24) 0.4 ppb (1) N/A 25.0 ppb (24) N/A N/A 10.0 ppb (10) 0.5 ppb (6) N/A N/A 24.0
 
April 19, 2021, 5 a.m. 18.1 ppb (18) 0.1 ppb (1) N/A 18.0 ppb (17) N/A N/A 22.0 ppb (21) 0.42 ppb (5) N/A N/A 21.0
 
April 19, 2021, 4 a.m. 19.4 ppb (19) 0.2 ppb (1) N/A 19.0 ppb (18) N/A N/A 25.0 ppb (24) 0.43 ppb (5) N/A N/A 24.0
 
April 19, 2021, 3 a.m. 10.9 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A 39.0 ppb (37) 0.29 ppb (4) N/A N/A 37.0
 
April 19, 2021, 2 a.m. 8.1 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 46.0 ppb (43) 0.26 ppb (4) N/A N/A 43.0
 
April 19, 2021, 1 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) 0.2 ppb (3) N/A N/A 51.0
 
April 19, 2021, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (74) 0.15 ppb (2) N/A N/A 74.0
 
April 18, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (68) 0.15 ppb (2) N/A N/A 68.0
 
April 18, 2021, 10 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (74) 0.16 ppb (3) N/A N/A 74.0
 
April 18, 2021, 9 p.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) 0.17 ppb (3) N/A N/A 71.0
 
April 18, 2021, 8 p.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) 0.17 ppb (3) N/A N/A 68.0
 
April 18, 2021, 7 p.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.16 ppb (3) N/A N/A 58.0
 
April 18, 2021, 6 p.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (50) 0.15 ppb (2) N/A N/A 50.0
 
April 18, 2021, 5 p.m. 2.9 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) 0.17 ppb (3) N/A N/A 47.0
 
April 18, 2021, 4 p.m. 7.9 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) 0.26 ppb (4) N/A N/A 37.0
 
April 18, 2021, 3 p.m. 6.6 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) 0.2 ppb (3) N/A N/A 35.0
 
April 18, 2021, 2 p.m. 14.2 ppb (14) 2.5 ppb (3) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) 0.27 ppb (4) N/A N/A 19.0
 
April 18, 2021, 1 p.m. 12.5 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) 0.26 ppb (4) N/A N/A 19.0
 
April 18, 2021, noon 9.7 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) 0.26 ppb (4) N/A N/A 19.0
 
April 18, 2021, 11 a.m. 10.8 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A N/A 18.0
 
April 18, 2021, 10 a.m. 12.4 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A 16.0 ppb (15) 0.37 ppb (5) N/A N/A 15.0
 
April 18, 2021, 9 a.m. 20.6 ppb (20) 1.1 ppb (2) N/A 20.0 ppb (19) N/A N/A 7.0 ppb (7) 0.54 ppb (6) N/A N/A 20.0
 
April 18, 2021, 8 a.m. 22.9 ppb (22) 2.4 ppb (3) N/A 21.0 ppb (20) N/A N/A 3.0 ppb (3) 0.65 ppb (8) N/A N/A 22.0
 
April 18, 2021, 7 a.m. 18.4 ppb (18) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (7) 0.48 ppb (6) N/A N/A 18.0
 
April 18, 2021, 6 a.m. 13.5 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A N/A 16.0 ppb (15) 0.39 ppb (5) N/A N/A 15.0
 
April 18, 2021, 5 a.m. 12.7 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A N/A 18.0 ppb (17) 0.37 ppb (5) N/A N/A 17.0
 
April 18, 2021, 4 a.m. 10.4 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.35 ppb (4) N/A N/A 23.0
 
April 18, 2021, 3 a.m. 8.2 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.31 ppb (4) N/A N/A 29.0
 
April 18, 2021, 2 a.m. 6.9 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) 0.28 ppb (4) N/A N/A 37.0
 
April 18, 2021, 1 a.m. 5.4 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (47) 0.26 ppb (4) N/A N/A 47.0
 
April 18, 2021, midnight 5.1 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (58) 0.25 ppb (3) N/A N/A 58.0
 
April 17, 2021, 11 p.m. 5.7 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 63.0 ppb (78) 0.26 ppb (4) N/A N/A 78.0
 
April 17, 2021, 10 p.m. 8.1 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 69.0 ppb (97) 0.3 ppb (4) N/A N/A 97.0
 
April 17, 2021, 9 p.m. 11.3 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 66.0 ppb (87) 0.35 ppb (4) N/A N/A 87.0
 
April 17, 2021, 8 p.m. 13.0 ppb (13) 1.4 ppb (2) N/A 12.0 ppb (12) N/A N/A 62.0 ppb (74) 0.35 ppb (4) N/A N/A 74.0
 
April 17, 2021, 7 p.m. 8.4 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 56.0 ppb (55) 0.31 ppb (4) N/A N/A 55.0
 
April 17, 2021, 6 p.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (47) 0.27 ppb (4) N/A N/A 47.0
 
April 17, 2021, 5 p.m. 7.8 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) 0.26 ppb (4) N/A N/A 38.0
 
April 17, 2021, 4 p.m. 6.6 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) 0.24 ppb (3) N/A N/A 31.0
 
April 17, 2021, 3 p.m. 7.2 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.26 ppb (4) N/A N/A 28.0
 
April 17, 2021, 2 p.m. 8.5 ppb (9) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) 0.24 ppb (3) N/A N/A 26.0
 
April 17, 2021, 1 p.m. 13.0 ppb (13) 0.7 ppb (1) N/A 12.0 ppb (12) N/A N/A 13.0 ppb (13) 0.32 ppb (4) N/A N/A 13.0
 
April 17, 2021, noon 15.0 ppb (15) 1.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 7.0 ppb (7) 0.35 ppb (4) N/A N/A 15.0
 
April 17, 2021, 11 a.m. 18.3 ppb (18) 1.2 ppb (2) N/A 17.0 ppb (17) N/A N/A 4.0 ppb (4) 0.37 ppb (5) N/A N/A 18.0
 
April 17, 2021, 10 a.m. 17.1 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (16) N/A N/A 7.0 ppb (7) 0.37 ppb (5) N/A N/A 17.0
 
April 17, 2021, 9 a.m. 11.3 ppb (11) 0.4 ppb (1) N/A 11.0 ppb (11) N/A N/A 17.0 ppb (16) 0.32 ppb (4) N/A N/A 16.0
 
April 17, 2021, 8 a.m. 11.2 ppb (11) 0.4 ppb (1) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) 0.3 ppb (4) N/A N/A 17.0
 
April 17, 2021, 7 a.m. 10.6 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 19.0 ppb (18) 0.29 ppb (4) N/A N/A 18.0
 
April 17, 2021, 6 a.m. 9.7 ppb (10) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) 0.27 ppb (4) N/A N/A 18.0
 
April 17, 2021, 5 a.m. 8.9 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) 0.28 ppb (4) N/A N/A 24.0
 
April 17, 2021, 4 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.28 ppb (4) N/A N/A 28.0
 
April 17, 2021, 3 a.m. 7.6 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) 0.26 ppb (4) N/A N/A 36.0
 
April 17, 2021, 2 a.m. 6.5 ppb (7) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (42) 0.24 ppb (3) N/A N/A 42.0
 
April 17, 2021, 1 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (47) 0.23 ppb (3) N/A N/A 47.0
 
April 17, 2021, midnight 6.3 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (50) 0.23 ppb (3) N/A N/A 50.0
 
April 16, 2021, 11 p.m. 5.1 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (58) 0.21 ppb (3) N/A N/A 58.0
 
April 16, 2021, 10 p.m. 8.6 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 65.0 ppb (84) 0.27 ppb (4) N/A N/A 84.0
 
April 16, 2021, 9 p.m. 13.4 ppb (13) 1.2 ppb (2) N/A 12.0 ppb (12) N/A N/A 66.0 ppb (87) 0.34 ppb (4) N/A N/A 87.0
 
April 16, 2021, 8 p.m. 17.3 ppb (17) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 63.0 ppb (78) 0.41 ppb (5) N/A N/A 78.0
 
April 16, 2021, 7 p.m. 14.6 ppb (14) 2.1 ppb (2) N/A 12.0 ppb (12) N/A N/A 55.0 ppb (51) 0.39 ppb (5) N/A N/A 51.0
 
April 16, 2021, 6 p.m. 9.9 ppb (10) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A 51.0 ppb (48) 0.31 ppb (4) N/A N/A 48.0
 
April 16, 2021, 5 p.m. 8.5 ppb (9) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 45.0 ppb (42) 0.27 ppb (4) N/A N/A 42.0
 
April 16, 2021, 4 p.m. 10.9 ppb (11) 2.3 ppb (3) N/A 9.0 ppb (9) N/A N/A 34.0 ppb (32) 0.29 ppb (4) N/A N/A 32.0
 
April 16, 2021, 3 p.m. 17.0 ppb (17) 4.5 ppb (5) N/A 13.0 ppb (13) N/A N/A 22.0 ppb (21) 0.34 ppb (4) N/A N/A 21.0
 
April 16, 2021, 2 p.m. 24.2 ppb (23) 7.3 ppb (7) N/A 17.0 ppb (17) N/A N/A 12.0 ppb (12) 0.35 ppb (4) N/A N/A 23.0
 
April 16, 2021, 1 p.m. 30.3 ppb (29) 8.3 ppb (8) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.37 ppb (5) N/A N/A 29.0
 
April 16, 2021, noon 19.3 ppb (19) 1.5 ppb (2) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (4) 0.3 ppb (4) N/A N/A 19.0
 
April 16, 2021, 11 a.m. 15.3 ppb (15) 0.9 ppb (1) N/A 14.0 ppb (14) N/A N/A 9.0 ppb (9) 0.3 ppb (4) N/A N/A 15.0
 
April 16, 2021, 10 a.m. 12.0 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A N/A 14.0 ppb (13) 0.28 ppb (4) N/A N/A 13.0
 
April 16, 2021, 9 a.m. 12.1 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A N/A 11.0 ppb (11) 0.29 ppb (4) N/A N/A 12.0
 
April 16, 2021, 8 a.m. 8.1 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 16.0 ppb (15) 0.26 ppb (4) N/A N/A 15.0
 
April 16, 2021, 7 a.m. 8.7 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) 0.26 ppb (4) N/A N/A 16.0
 
April 16, 2021, 6 a.m. 9.2 ppb (9) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) 0.27 ppb (4) N/A N/A 19.0
 
April 16, 2021, 5 a.m. 7.7 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) 0.25 ppb (3) N/A N/A 25.0
 
April 16, 2021, 4 a.m. 5.9 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.23 ppb (3) N/A N/A 32.0
 
April 16, 2021, 3 a.m. 5.5 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.21 ppb (3) N/A N/A 33.0
 
April 16, 2021, 2 a.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.2 ppb (3) N/A N/A 38.0
 
April 16, 2021, 1 a.m. 4.9 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) 0.21 ppb (3) N/A N/A 40.0
 
April 16, 2021, midnight 5.4 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (45) 0.22 ppb (3) N/A N/A 45.0
 
April 15, 2021, 11 p.m. 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 56.0 ppb (55) 0.23 ppb (3) N/A N/A 55.0
 
April 15, 2021, 10 p.m. 8.5 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 57.0 ppb (58) 0.25 ppb (3) N/A N/A 58.0
 
April 15, 2021, 9 p.m. 12.7 ppb (12) 1.6 ppb (2) N/A 11.0 ppb (11) N/A N/A 57.0 ppb (58) 0.3 ppb (4) N/A N/A 58.0
 
April 15, 2021, 8 p.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 58.0 ppb (61) 0.27 ppb (4) N/A N/A 61.0
 
April 15, 2021, 7 p.m. 7.3 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (50) 0.26 ppb (4) N/A N/A 50.0
 
April 15, 2021, 6 p.m. 8.0 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 47.0 ppb (44) 0.25 ppb (3) N/A N/A 44.0
 
April 15, 2021, 5 p.m. 9.2 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) 0.25 ppb (3) N/A N/A 39.0
 
April 15, 2021, 4 p.m. 9.5 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) 0.24 ppb (3) N/A N/A 36.0
 
April 15, 2021, 3 p.m. 19.3 ppb (19) 4.3 ppb (5) N/A 15.0 ppb (15) N/A N/A 25.0 ppb (24) 0.3 ppb (4) N/A N/A 24.0
 
April 15, 2021, 2 p.m. 21.7 ppb (21) 4.0 ppb (4) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (13) 0.34 ppb (4) N/A N/A 21.0
 
April 15, 2021, 1 p.m. 11.4 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) 0.26 ppb (4) N/A N/A 15.0
 
April 15, 2021, noon 14.4 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.25 ppb (3) N/A N/A 14.0
 
April 15, 2021, 11 a.m. 17.0 ppb (17) 0.6 ppb (1) N/A 16.0 ppb (16) N/A N/A 8.0 ppb (8) 0.28 ppb (4) N/A N/A 17.0
 
April 15, 2021, 10 a.m. 12.9 ppb (13) 0.3 ppb (1) N/A 13.0 ppb (13) N/A N/A 17.0 ppb (16) 0.26 ppb (4) N/A N/A 16.0