AQSQID: 060811001

Site Name: Redwood City

Location: San Mateo Co, CA

Reporting: True, Located: True

Current AQI: 50.0

San Mateo Co CA, US: 37.4828, -122.2022

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 18, 2019, 8 a.m. 15.3 ppb (14) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 8.0 ppb (6) 0.55 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 18, 2019, 7 a.m. 17.2 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A N/A 8.0 ppb (6) 0.49 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 18, 2019, 6 a.m. 28.2 ppb (26) 4.7 ppb (4) N/A 24.0 ppb (22) N/A N/A 5.0 ppb (4) 0.82 ppb (9) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 18, 2019, 5 a.m. 22.1 ppb (20) 1.7 ppb (2) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (8) 0.63 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 18, 2019, 4 a.m. 23.7 ppb (22) 1.6 ppb (1) N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) 0.62 ppb (7) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 18, 2019, 3 a.m. 37.7 ppb (35) 6.5 ppb (6) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) 1.11 ppb (12) N/A 25.0 μg/m3 (78) 78.0
 
Nov. 18, 2019, 2 a.m. 39.8 ppb (37) 4.2 ppb (4) N/A 36.0 ppb (33) N/A N/A 6.0 ppb (5) 1.01 ppb (11) N/A 35.0 μg/m3 (99) 99.0
 
Nov. 18, 2019, 1 a.m. 37.6 ppb (35) 3.9 ppb (4) N/A 34.0 ppb (31) N/A N/A 15.0 ppb (12) 0.97 ppb (11) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 18, 2019, midnight 9.5 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 48.0 ppb (37) 0.36 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 17, 2019, 11 p.m. 6.6 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (42) 0.31 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 17, 2019, 10 p.m. 8.4 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 46.0 ppb (35) 0.33 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 17, 2019, 9 p.m. 8.5 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 45.0 ppb (35) 0.34 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 17, 2019, 8 p.m. 14.1 ppb (13) 3.8 ppb (4) N/A 10.0 ppb (9) N/A N/A 29.0 ppb (22) 0.37 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 17, 2019, 7 p.m. 23.7 ppb (22) 10.0 ppb (9) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) 0.47 ppb (5) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 17, 2019, 6 p.m. 24.6 ppb (23) 10.6 ppb (10) N/A 14.0 ppb (13) N/A N/A 13.0 ppb (10) 0.47 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 17, 2019, 5 p.m. 30.3 ppb (28) 15.4 ppb (14) N/A 15.0 ppb (14) N/A N/A 8.0 ppb (6) 0.56 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 17, 2019, 4 p.m. 29.5 ppb (27) 15.5 ppb (14) N/A 14.0 ppb (13) N/A N/A 5.0 ppb (4) 0.66 ppb (7) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 17, 2019, 3 p.m. 20.0 ppb (19) 9.1 ppb (8) N/A 11.0 ppb (10) N/A N/A 2.0 ppb (2) 0.5 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 17, 2019, 2 p.m. 17.6 ppb (16) 7.7 ppb (7) N/A 10.0 ppb (9) N/A N/A 0.0 ppb (0) 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 17, 2019, 1 p.m. 12.6 ppb (12) 2.6 ppb (2) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 17, 2019, noon 12.0 ppb (11) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A 2.0 ppb (2) 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 17, 2019, 11 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
 
Nov. 17, 2019, 10 a.m. 17.0 ppb (16) 5.8 ppb (5) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) 0.49 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 9 a.m. 22.4 ppb (21) 9.3 ppb (9) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) 0.57 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 17, 2019, 8 a.m. 31.4 ppb (29) 17.2 ppb (16) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) 0.67 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 17, 2019, 7 a.m. 33.2 ppb (31) 19.8 ppb (18) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) 0.68 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 17, 2019, 6 a.m. 36.2 ppb (34) 22.0 ppb (20) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) 0.72 ppb (8) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 17, 2019, 5 a.m. 38.2 ppb (35) 21.5 ppb (20) N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) 0.74 ppb (8) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 17, 2019, 4 a.m. 52.4 ppb (49) 32.1 ppb (30) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 1.0 ppb (11) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 17, 2019, 3 a.m. 50.9 ppb (47) 26.1 ppb (24) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 0.98 ppb (11) N/A 11.0 μg/m3 (46) 47.0
 
Nov. 17, 2019, 2 a.m. 40.8 ppb (38) 10.7 ppb (10) N/A 30.0 ppb (28) N/A N/A 1.0 ppb (1) 0.69 ppb (8) N/A 8.0 μg/m3 (33) 38.0
 
Nov. 17, 2019, 1 a.m. 28.4 ppb (26) 2.7 ppb (3) N/A 26.0 ppb (24) N/A N/A 5.0 ppb (4) 0.47 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 17, 2019, midnight 23.3 ppb (22) 3.6 ppb (3) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (8) 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 11 p.m. 10.9 ppb (10) 2.4 ppb (2) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 10 p.m. 8.7 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.3 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 16, 2019, 9 p.m. 10.0 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) 0.31 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 16, 2019, 8 p.m. 10.9 ppb (10) 4.1 ppb (4) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.33 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 16, 2019, 7 p.m. 12.1 ppb (11) 5.1 ppb (5) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.32 ppb (4) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 16, 2019, 6 p.m. 11.1 ppb (10) 4.7 ppb (4) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.32 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 16, 2019, 5 p.m. 8.5 ppb (8) 3.2 ppb (3) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) 0.29 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 16, 2019, 4 p.m. 10.4 ppb (10) 4.3 ppb (4) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (5) 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 3 p.m. 14.7 ppb (14) 5.5 ppb (5) N/A 9.0 ppb (8) N/A N/A 5.0 ppb (4) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 2 p.m. 7.2 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (5) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 1 p.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 5.0 ppb (4) 0.24 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 16, 2019, noon 5.3 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (5) 0.24 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Nov. 16, 2019, 10 a.m. 5.1 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) 0.26 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 16, 2019, 9 a.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.26 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 16, 2019, 8 a.m. 5.8 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.26 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 7 a.m. 12.9 ppb (12) 3.1 ppb (3) N/A 10.0 ppb (9) N/A N/A 7.0 ppb (5) 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 6 a.m. 24.8 ppb (23) 11.3 ppb (10) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) 0.51 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 5 a.m. 25.2 ppb (23) 8.4 ppb (8) N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 0.49 ppb (5) N/A 3.0 μg/m3 (12) 23.0
 
Nov. 16, 2019, 4 a.m. 13.7 ppb (13) 2.5 ppb (2) N/A 11.0 ppb (10) N/A N/A 11.0 ppb (8) 0.34 ppb (4) N/A 1.0 μg/m3 (4) 13.0
 
Nov. 16, 2019, 3 a.m. 8.6 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.27 ppb (3) N/A 3.0 μg/m3 (12) 14.0
 
Nov. 16, 2019, 2 a.m. 10.3 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 1 a.m. 12.2 ppb (11) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) 0.45 ppb (5) N/A 2.0 μg/m3 (8) 15.0
 
Nov. 16, 2019, midnight 6.8 ppb (6) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.31 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Nov. 15, 2019, 11 p.m. 11.0 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.31 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 15, 2019, 10 p.m. 8.3 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 15, 2019, 9 p.m. 9.5 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) 0.31 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 15, 2019, 8 p.m. 10.7 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 31.0 ppb (24) 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 15, 2019, 7 p.m. 11.1 ppb (10) 3.2 ppb (3) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.26 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 6 p.m. 11.3 ppb (10) 3.2 ppb (3) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 15, 2019, 5 p.m. 9.7 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 15, 2019, 4 p.m. 20.5 ppb (19) 9.4 ppb (9) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 15, 2019, 3 p.m. 48.4 ppb (45) 27.9 ppb (26) N/A 21.0 ppb (19) N/A N/A 2.0 ppb (2) 0.7 ppb (8) N/A 6.0 μg/m3 (25) 45.0
 
Nov. 15, 2019, 2 p.m. 21.5 ppb (20) 9.2 ppb (9) N/A 12.0 ppb (11) N/A N/A 4.0 ppb (3) 0.37 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
Nov. 15, 2019, 1 p.m. 9.8 ppb (9) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A 8.0 ppb (6) 0.26 ppb (3) N/A 1.0 μg/m3 (4) 9.0
 
Nov. 15, 2019, noon 6.6 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.19 ppb (2) N/A -2.0 μg/m3 (0) 10.0
 
Nov. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) N/A
Nov. 15, 2019, 10 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.17 ppb (2) N/A 1.0 μg/m3 (4) 20.0
 
Nov. 15, 2019, 9 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.18 ppb (2) N/A 1.0 μg/m3 (4) 20.0
 
Nov. 15, 2019, 8 a.m. 8.6 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.22 ppb (2) N/A 2.0 μg/m3 (8) 15.0
 
Nov. 15, 2019, 7 a.m. 6.7 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 6 a.m. 8.8 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) 0.26 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 5 a.m. 8.7 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) 0.28 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
Nov. 15, 2019, 4 a.m. 3.1 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.2 ppb (2) N/A -1.0 μg/m3 (0) 22.0
 
Nov. 15, 2019, 3 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.2 ppb (2) N/A -1.0 μg/m3 (0) 22.0
 
Nov. 15, 2019, 2 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.22 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
Nov. 15, 2019, 1 a.m. 5.8 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.3 ppb (3) N/A 2.0 μg/m3 (8) 20.0
 
Nov. 15, 2019, midnight 4.7 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.26 ppb (3) N/A 3.0 μg/m3 (12) 22.0
 
Nov. 14, 2019, 11 p.m. 5.9 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 25.0
 
Nov. 14, 2019, 10 p.m. 4.8 ppb (4) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.22 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Nov. 14, 2019, 9 p.m. 8.9 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.28 ppb (3) N/A 5.0 μg/m3 (21) 25.0
 
Nov. 14, 2019, 8 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.21 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 14, 2019, 7 p.m. 7.0 ppb (6) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.27 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 14, 2019, 6 p.m. 13.1 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) 0.41 ppb (5) N/A N/A 17.0
 
Nov. 14, 2019, 5 p.m. 19.8 ppb (18) 5.2 ppb (5) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.42 ppb (5) N/A 24.0 μg/m3 (76) 76.0
 
Nov. 14, 2019, 4 p.m. 40.5 ppb (38) 19.5 ppb (18) N/A 21.0 ppb (19) N/A N/A 4.0 ppb (3) 0.64 ppb (7) N/A 28.0 μg/m3 (84) 84.0
 
Nov. 14, 2019, 3 p.m. 62.7 ppb (59) 41.5 ppb (38) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) 0.92 ppb (10) N/A 24.0 μg/m3 (76) 76.0
 
Nov. 14, 2019, 2 p.m. 28.5 ppb (26) 11.1 ppb (10) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.54 ppb (6) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 14, 2019, 1 p.m. 14.7 ppb (14) 2.5 ppb (2) N/A 12.0 ppb (11) N/A N/A 4.0 ppb (3) 0.39 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, noon 9.2 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 6.0 ppb (5) 0.34 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, 11 a.m. 12.2 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) 0.33 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
Nov. 14, 2019, 9 a.m. 8.3 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) 0.31 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 14, 2019, 8 a.m. 11.3 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 12.0 ppb (9) 0.38 ppb (4) N/A 25.0 μg/m3 (78) 78.0
 
Nov. 14, 2019, 7 a.m. 18.2 ppb (17) 0.9 ppb (1) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.43 ppb (5) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 14, 2019, 6 a.m. 19.5 ppb (18) 1.5 ppb (1) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (5) 0.47 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 14, 2019, 5 a.m. 20.2 ppb (19) 2.1 ppb (2) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) 0.53 ppb (6) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 14, 2019, 4 a.m. 15.3 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A 12.0 ppb (9) 0.41 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 14, 2019, 3 a.m. 12.7 ppb (12) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.37 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, 2 a.m. 9.1 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) 0.33 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, 1 a.m. 13.0 ppb (12) 1.5 ppb (1) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 0.4 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 14, 2019, midnight 13.7 ppb (13) 1.7 ppb (2) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) 0.41 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 13, 2019, 11 p.m. 13.5 ppb (12) 2.5 ppb (2) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.41 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, 10 p.m. 16.0 ppb (15) 3.4 ppb (3) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.43 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 13, 2019, 9 p.m. 15.6 ppb (14) 4.4 ppb (4) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.41 ppb (5) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 13, 2019, 8 p.m. 19.4 ppb (18) 6.0 ppb (6) N/A 14.0 ppb (13) N/A N/A 19.0 ppb (15) 0.43 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 13, 2019, 7 p.m. 22.0 ppb (20) 8.0 ppb (7) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) 0.45 ppb (5) N/A 22.0 μg/m3 (71) 71.0
 
Nov. 13, 2019, 6 p.m. 22.4 ppb (21) 9.9 ppb (9) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.4 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, 5 p.m. 38.0 ppb (35) 18.7 ppb (17) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) 0.54 ppb (6) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 13, 2019, 4 p.m. 108.7 ppb (101) 80.6 ppb (78) N/A 28.0 ppb (26) N/A N/A 2.0 ppb (2) 1.2 ppb (13) N/A 26.0 μg/m3 (80) 101.0
 
Nov. 13, 2019, 3 p.m. 105.7 ppb (101) 81.8 ppb (80) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 1.28 ppb (14) N/A 16.0 μg/m3 (59) 101.0
 
Nov. 13, 2019, 2 p.m. 50.6 ppb (47) 33.9 ppb (31) N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) 0.82 ppb (9) N/A 9.0 μg/m3 (38) 47.0
 
Nov. 13, 2019, 1 p.m. 29.3 ppb (27) 12.9 ppb (12) N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) 0.55 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, noon 18.9 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A N/A 2.0 ppb (2) 0.47 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 13, 2019, 11 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
 
Nov. 13, 2019, 10 a.m. 19.1 ppb (18) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 13, 2019, 9 a.m. 24.6 ppb (23) 4.7 ppb (4) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 0.57 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 13, 2019, 8 a.m. 38.9 ppb (36) 16.7 ppb (15) N/A 22.0 ppb (20) N/A N/A 1.0 ppb (1) 0.69 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, 7 a.m. 55.2 ppb (51) 30.5 ppb (28) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 0.82 ppb (9) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 13, 2019, 6 a.m. 54.5 ppb (51) 27.3 ppb (25) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 0.89 ppb (10) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 13, 2019, 5 a.m. 62.9 ppb (59) 28.0 ppb (26) N/A 35.0 ppb (32) N/A N/A 2.0 ppb (2) 0.9 ppb (10) N/A 29.0 μg/m3 (86) 86.0
 
Nov. 13, 2019, 4 a.m. 63.2 ppb (60) 20.6 ppb (19) N/A 43.0 ppb (40) N/A N/A 2.0 ppb (2) 0.97 ppb (11) N/A 26.0 μg/m3 (80) 80.0
 
Nov. 13, 2019, 3 a.m. 76.5 ppb (74) 32.9 ppb (30) N/A 44.0 ppb (41) N/A N/A 1.0 ppb (1) 1.28 ppb (14) N/A 28.0 μg/m3 (84) 84.0
 
Nov. 13, 2019, 2 a.m. 90.0 ppb (88) 42.2 ppb (39) N/A 48.0 ppb (44) N/A N/A 1.0 ppb (1) 1.36 ppb (15) N/A 29.0 μg/m3 (86) 88.0
 
Nov. 13, 2019, 1 a.m. 72.7 ppb (70) 17.8 ppb (16) N/A 55.0 ppb (51) N/A N/A 3.0 ppb (2) 1.34 ppb (15) N/A 32.0 μg/m3 (93) 93.0
 
Nov. 13, 2019, midnight 39.5 ppb (37) 3.3 ppb (3) N/A 36.0 ppb (33) N/A N/A 30.0 ppb (23) 0.75 ppb (8) N/A 26.0 μg/m3 (80) 80.0
 
Nov. 12, 2019, 11 p.m. 28.0 ppb (26) 3.1 ppb (3) N/A 25.0 ppb (23) N/A N/A 41.0 ppb (32) 0.52 ppb (6) N/A 24.0 μg/m3 (76) 76.0
 
Nov. 12, 2019, 10 p.m. 16.7 ppb (15) 2.1 ppb (2) N/A 15.0 ppb (14) N/A N/A 47.0 ppb (36) 0.4 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 12, 2019, 9 p.m. 21.3 ppb (20) 3.8 ppb (4) N/A 17.0 ppb (16) N/A N/A 38.0 ppb (29) 0.4 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 12, 2019, 8 p.m. 33.6 ppb (31) 10.8 ppb (10) N/A 23.0 ppb (21) N/A N/A 21.0 ppb (16) 0.47 ppb (5) N/A 24.0 μg/m3 (76) 76.0
 
Nov. 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
Nov. 12, 2019, 5 p.m. 43.6 ppb (40) 22.6 ppb (21) N/A 21.0 ppb (19) N/A N/A 7.0 ppb (5) 0.49 ppb (5) N/A N/A 40.0
 
Nov. 12, 2019, 4 p.m. 87.9 ppb (86) 58.0 ppb (54) N/A 30.0 ppb (28) N/A N/A 3.0 ppb (2) 0.9 ppb (10) N/A 20.0 μg/m3 (67) 86.0
 
Nov. 12, 2019, 3 p.m. 120.9 ppb (104) 90.4 ppb (89) N/A 30.0 ppb (28) N/A N/A 1.0 ppb (1) 1.29 ppb (14) N/A 18.0 μg/m3 (63) 104.0
 
Nov. 12, 2019, 2 p.m. 56.5 ppb (53) 34.5 ppb (32) N/A 22.0 ppb (20) N/A N/A 1.0 ppb (1) 0.93 ppb (10) N/A 9.0 μg/m3 (38) 53.0
 
Nov. 12, 2019, 1 p.m. 28.4 ppb (26) 10.1 ppb (9) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.55 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 12, 2019, noon 21.9 ppb (20) 5.0 ppb (5) N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) 0.43 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, 11 a.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
 
Nov. 12, 2019, 10 a.m. 21.0 ppb (19) 3.8 ppb (4) N/A 17.0 ppb (16) N/A N/A 3.0 ppb (2) 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 12, 2019, 9 a.m. 24.2 ppb (22) 5.4 ppb (5) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.45 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 12, 2019, 8 a.m. 37.9 ppb (35) 17.4 ppb (16) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 12, 2019, 7 a.m. 44.3 ppb (41) 23.0 ppb (21) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) 0.69 ppb (8) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 12, 2019, 6 a.m. 50.0 ppb (46) 26.9 ppb (25) N/A 23.0 ppb (21) N/A N/A 1.0 ppb (1) 0.71 ppb (8) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 12, 2019, 5 a.m. 66.6 ppb (63) 40.5 ppb (38) N/A 26.0 ppb (24) N/A N/A 1.0 ppb (1) 0.84 ppb (9) N/A 17.0 μg/m3 (61) 63.0
 
Nov. 12, 2019, 4 a.m. 97.7 ppb (96) 64.1 ppb (61) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) 0.91 ppb (10) N/A 20.0 μg/m3 (67) 96.0
 
Nov. 12, 2019, 3 a.m. 91.9 ppb (90) 54.2 ppb (50) N/A 38.0 ppb (35) N/A N/A 1.0 ppb (1) 1.3 ppb (14) N/A 28.0 μg/m3 (84) 90.0
 
Nov. 12, 2019, 2 a.m. 75.2 ppb (73) 33.7 ppb (31) N/A 42.0 ppb (39) N/A N/A 1.0 ppb (1) 1.2 ppb (13) N/A 27.0 μg/m3 (82) 82.0
 
Nov. 12, 2019, 1 a.m. 59.6 ppb (56) 15.8 ppb (15) N/A 44.0 ppb (41) N/A N/A 2.0 ppb (2) 0.88 ppb (10) N/A 28.0 μg/m3 (84) 84.0
 
Nov. 12, 2019, midnight 47.0 ppb (44) 11.3 ppb (10) N/A 36.0 ppb (33) N/A N/A 6.0 ppb (5) 0.79 ppb (9) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 11, 2019, 11 p.m. 42.8 ppb (40) 12.8 ppb (12) N/A 30.0 ppb (28) N/A N/A 12.0 ppb (9) 0.7 ppb (8) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 11, 2019, 10 p.m. 36.9 ppb (34) 12.4 ppb (11) N/A 25.0 ppb (23) N/A N/A 13.0 ppb (10) 0.62 ppb (7) N/A 22.0 μg/m3 (71) 71.0
 
Nov. 11, 2019, 9 p.m. 32.4 ppb (30) 11.1 ppb (10) N/A 21.0 ppb (19) N/A N/A 15.0 ppb (12) 0.54 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 11, 2019, 8 p.m. 31.3 ppb (29) 10.8 ppb (10) N/A 21.0 ppb (19) N/A N/A 17.0 ppb (13) 0.52 ppb (6) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 11, 2019, 7 p.m. 39.1 ppb (36) 15.6 ppb (14) N/A 24.0 ppb (22) N/A N/A 14.0 ppb (11) 0.6 ppb (7) N/A 23.0 μg/m3 (73) 73.0
 
Nov. 11, 2019, 6 p.m. 43.1 ppb (40) 20.2 ppb (19) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) 0.62 ppb (7) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 11, 2019, 5 p.m. 36.4 ppb (34) 15.9 ppb (15) N/A 21.0 ppb (19) N/A N/A 10.0 ppb (8) 0.56 ppb (6) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 11, 2019, 4 p.m. 71.6 ppb (69) 43.0 ppb (40) N/A 29.0 ppb (27) N/A N/A 5.0 ppb (4) 1.0 ppb (11) N/A 23.0 μg/m3 (73) 73.0
 
Nov. 11, 2019, 3 p.m. 92.2 ppb (91) 67.3 ppb (64) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 0.94 ppb (10) N/A 10.0 μg/m3 (42) 91.0
 
Nov. 11, 2019, 2 p.m. 49.9 ppb (46) 31.2 ppb (29) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.65 ppb (7) N/A 7.0 μg/m3 (29) 46.0
 
Nov. 11, 2019, 1 p.m. 22.2 ppb (21) 6.2 ppb (6) N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 11, 2019, noon 21.7 ppb (20) 5.0 ppb (5) N/A 17.0 ppb (16) N/A N/A 2.0 ppb (2) 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 11, 2019, 11 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
 
Nov. 11, 2019, 10 a.m. 16.4 ppb (15) 1.7 ppb (2) N/A 15.0 ppb (14) N/A N/A 3.0 ppb (2) 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 11, 2019, 9 a.m. 19.9 ppb (18) 2.6 ppb (2) N/A 17.0 ppb (16) N/A N/A 2.0 ppb (2) 0.5 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 11, 2019, 8 a.m. 25.4 ppb (24) 6.4 ppb (6) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.58 ppb (6) N/A 14.0 μg/m3 (54) 54.0