AQSQID: 060376012

Site Name: Santa Clarita

Location: Santa Clarita, CA

Reporting: True, Located: True

Current AQI: 51.0

Santa Clarita CA, US: 34.3833, -118.5283

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 14, 2019, 2 a.m. 9.1 ppb (8) -1.7 ppb (0) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) 0.2 ppb (2) N/A 12.3 μg/m3 (51) 51.0
 
Nov. 14, 2019, 1 a.m. 12.8 ppb (12) -1.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 37.0 ppb (28) 0.25 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
Nov. 14, 2019, midnight 25.0 ppb (23) -1.0 ppb (0) N/A 26.0 ppb (24) N/A N/A 50.0 ppb (38) 0.52 ppb (6) N/A 24.5 μg/m3 (77) 77.0
 
Nov. 13, 2019, 11 p.m. 22.7 ppb (21) -0.2 ppb (0) N/A 23.0 ppb (21) N/A N/A 59.0 ppb (45) 0.61 ppb (7) N/A 20.6 μg/m3 (68) 68.0
 
Nov. 13, 2019, 10 p.m. 13.4 ppb (12) -0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 63.0 ppb (48) 0.47 ppb (5) N/A 14.4 μg/m3 (55) 55.0
 
Nov. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (65) 65.0
 
Nov. 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
Nov. 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Nov. 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (18) 18.0
 
Nov. 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.39 ppb (4) N/A 8.6 μg/m3 (36) 36.0
 
Nov. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.58 ppb (6) N/A 7.9 μg/m3 (33) 33.0
 
Nov. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.65 ppb (7) N/A 7.7 μg/m3 (32) 32.0
 
Nov. 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 0.56 ppb (6) N/A 9.9 μg/m3 (41) 41.0
 
Nov. 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.34 ppb (4) N/A 10.1 μg/m3 (42) 42.0
 
Nov. 13, 2019, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.31 ppb (3) N/A 7.2 μg/m3 (30) 30.0
 
Nov. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.28 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
Nov. 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.33 ppb (4) N/A 10.6 μg/m3 (44) 44.0
 
Nov. 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.34 ppb (4) N/A 11.3 μg/m3 (47) 47.0
 
Nov. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.37 ppb (4) N/A 10.9 μg/m3 (45) 45.0
 
Nov. 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.41 ppb (5) N/A 9.8 μg/m3 (41) 41.0
 
Nov. 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.44 ppb (5) N/A 11.3 μg/m3 (47) 47.0
 
Nov. 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.49 ppb (5) N/A 12.8 μg/m3 (52) 52.0
 
Nov. 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.54 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.56 ppb (6) N/A 16.9 μg/m3 (60) 60.0
 
Nov. 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.48 ppb (5) N/A 13.5 μg/m3 (53) 53.0
 
Nov. 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.38 ppb (4) N/A 10.8 μg/m3 (45) 45.0
 
Nov. 13, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.43 ppb (5) N/A 5.6 μg/m3 (23) 38.0
 
Nov. 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.23 ppb (3) N/A 3.0 μg/m3 (12) 43.0
 
Nov. 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) 0.26 ppb (3) N/A -0.2 μg/m3 (0) 48.0
 
Nov. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.16 ppb (2) N/A -3.1 μg/m3 (0) 42.0
 
Nov. 12, 2019, 8 p.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) 0.14 ppb (2) N/A -3.6 μg/m3 (0) 40.0
 
Nov. 12, 2019, 7 p.m. 5.7 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) 0.15 ppb (2) N/A -4.3 μg/m3 (0) 35.0
 
Nov. 12, 2019, 6 p.m. 10.7 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.17 ppb (2) N/A -0.7 μg/m3 (0) 28.0
 
Nov. 12, 2019, 5 p.m. 13.7 ppb (13) 4.8 ppb (4) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) 0.17 ppb (2) N/A 5.1 μg/m3 (21) 25.0
 
Nov. 12, 2019, 4 p.m. 57.1 ppb (53) 31.7 ppb (29) N/A 25.0 ppb (23) N/A N/A 10.0 ppb (8) 0.55 ppb (6) N/A 8.4 μg/m3 (35) 53.0
 
Nov. 12, 2019, 3 p.m. 93.8 ppb (92) 65.0 ppb (62) N/A 29.0 ppb (27) N/A N/A 4.0 ppb (3) 0.84 ppb (9) N/A 7.7 μg/m3 (32) 92.0
 
Nov. 12, 2019, 2 p.m. 40.5 ppb (38) 16.5 ppb (15) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.58 ppb (6) N/A 5.4 μg/m3 (23) 38.0
 
Nov. 12, 2019, 1 p.m. 22.5 ppb (21) 3.2 ppb (3) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (4) 0.32 ppb (4) N/A 1.9 μg/m3 (8) 21.0
 
Nov. 12, 2019, noon 10.9 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 13.0 ppb (10) 0.25 ppb (3) N/A 1.3 μg/m3 (5) 10.0
 
Nov. 12, 2019, 11 a.m. 6.1 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.16 ppb (2) N/A 1.8 μg/m3 (8) 14.0
 
Nov. 12, 2019, 10 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.18 ppb (2) N/A 1.5 μg/m3 (6) 12.0
 
Nov. 12, 2019, 9 a.m. 10.3 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
Nov. 12, 2019, 8 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.26 ppb (3) N/A 2.7 μg/m3 (11) 11.0
 
Nov. 12, 2019, 7 a.m. 14.4 ppb (13) 0.1 ppb (0) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) 0.33 ppb (4) N/A 8.1 μg/m3 (34) 34.0
 
Nov. 12, 2019, 6 a.m. 22.7 ppb (21) 0.5 ppb (0) N/A 22.0 ppb (20) N/A N/A 8.0 ppb (6) 0.42 ppb (5) N/A 12.1 μg/m3 (50) 50.0
 
Nov. 12, 2019, 5 a.m. 24.3 ppb (23) 0.4 ppb (0) N/A 24.0 ppb (22) N/A N/A 9.0 ppb (7) 0.46 ppb (5) N/A 9.6 μg/m3 (40) 40.0
 
Nov. 12, 2019, 4 a.m. 31.6 ppb (29) 0.9 ppb (1) N/A 31.0 ppb (29) N/A N/A 5.0 ppb (4) 0.52 ppb (6) N/A 10.1 μg/m3 (42) 42.0
 
Nov. 12, 2019, 3 a.m. 38.7 ppb (36) 2.8 ppb (3) N/A 36.0 ppb (33) N/A N/A 5.0 ppb (4) 0.63 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 12, 2019, 2 a.m. 25.2 ppb (23) 0.1 ppb (0) N/A 25.0 ppb (23) N/A N/A 24.0 ppb (18) 0.48 ppb (5) N/A 14.2 μg/m3 (55) 55.0
 
Nov. 12, 2019, 1 a.m. 28.2 ppb (26) 0.1 ppb (0) N/A 28.0 ppb (26) N/A N/A 37.0 ppb (28) 0.59 ppb (7) N/A 15.7 μg/m3 (58) 58.0
 
Nov. 12, 2019, midnight 20.4 ppb (19) 0.3 ppb (0) N/A 20.0 ppb (19) N/A N/A 56.0 ppb (43) 0.44 ppb (5) N/A 8.4 μg/m3 (35) 43.0
 
Nov. 11, 2019, 11 p.m. 9.0 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 52.0 ppb (40) 0.24 ppb (3) N/A -0.2 μg/m3 (0) 40.0
 
Nov. 11, 2019, 10 p.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.11 ppb (1) N/A -3.6 μg/m3 (0) 35.0
 
Nov. 11, 2019, 9 p.m. 0.7 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (35) 0.09 ppb (1) N/A -2.9 μg/m3 (0) 35.0
 
Nov. 11, 2019, 8 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.09 ppb (1) N/A -2.4 μg/m3 (0) 33.0
 
Nov. 11, 2019, 7 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.07 ppb (1) N/A -3.3 μg/m3 (0) 33.0
 
Nov. 11, 2019, 6 p.m. 12.2 ppb (11) 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A 38.0 ppb (29) 0.16 ppb (2) N/A -1.6 μg/m3 (0) 29.0
 
Nov. 11, 2019, 5 p.m. 31.5 ppb (29) 11.6 ppb (11) N/A 20.0 ppb (19) N/A N/A 25.0 ppb (19) 0.35 ppb (4) N/A 4.0 μg/m3 (17) 29.0
 
Nov. 11, 2019, 4 p.m. 42.3 ppb (39) 17.2 ppb (16) N/A 25.0 ppb (23) N/A N/A 17.0 ppb (13) 0.53 ppb (6) N/A 5.7 μg/m3 (24) 39.0
 
Nov. 11, 2019, 3 p.m. 47.5 ppb (44) 22.0 ppb (20) N/A 26.0 ppb (24) N/A N/A 9.0 ppb (7) 0.59 ppb (7) N/A 5.7 μg/m3 (24) 44.0
 
Nov. 11, 2019, 2 p.m. 27.8 ppb (26) 5.5 ppb (5) N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.47 ppb (5) N/A 6.9 μg/m3 (29) 29.0
 
Nov. 11, 2019, 1 p.m. 16.0 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 10.0 ppb (8) 0.34 ppb (4) N/A 8.4 μg/m3 (35) 35.0
 
Nov. 11, 2019, noon 11.0 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.34 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Nov. 11, 2019, 11 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) 0.3 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Nov. 11, 2019, 10 a.m. 8.5 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.32 ppb (4) N/A 8.9 μg/m3 (37) 37.0
 
Nov. 11, 2019, 9 a.m. 10.1 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.39 ppb (4) N/A 9.9 μg/m3 (41) 41.0
 
Nov. 11, 2019, 8 a.m. 10.6 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) 0.39 ppb (4) N/A 12.3 μg/m3 (51) 51.0
 
Nov. 11, 2019, 7 a.m. 14.7 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) 0.41 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 11, 2019, 6 a.m. 15.9 ppb (15) 0.1 ppb (0) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 0.42 ppb (5) N/A 15.7 μg/m3 (58) 58.0
 
Nov. 11, 2019, 5 a.m. 19.1 ppb (18) 0.1 ppb (0) N/A 19.0 ppb (18) N/A N/A 18.0 ppb (14) 0.44 ppb (5) N/A 8.1 μg/m3 (34) 34.0
 
Nov. 11, 2019, 4 a.m. 17.4 ppb (16) 0.0 ppb (0) N/A 17.0 ppb (16) N/A N/A 21.0 ppb (16) 0.43 ppb (5) N/A 11.1 μg/m3 (46) 46.0
 
Nov. 11, 2019, 3 a.m. 18.6 ppb (17) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A 23.0 ppb (18) 0.45 ppb (5) N/A 14.2 μg/m3 (55) 55.0
 
Nov. 11, 2019, 2 a.m. 21.6 ppb (20) 0.2 ppb (0) N/A 22.0 ppb (20) N/A N/A 29.0 ppb (22) 0.52 ppb (6) N/A 16.4 μg/m3 (59) 59.0
 
Nov. 11, 2019, 1 a.m. 14.9 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 50.0 ppb (38) 0.39 ppb (4) N/A 16.6 μg/m3 (60) 60.0
 
Nov. 11, 2019, midnight 12.0 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 66.0 ppb (51) 0.36 ppb (4) N/A 18.9 μg/m3 (65) 65.0
 
Nov. 10, 2019, 11 p.m. 11.5 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 71.0 ppb (55) 0.33 ppb (4) N/A 9.3 μg/m3 (39) 55.0
 
Nov. 10, 2019, 10 p.m. 10.4 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 71.0 ppb (55) 0.36 ppb (4) N/A 8.6 μg/m3 (36) 55.0
 
Nov. 10, 2019, 9 p.m. 12.2 ppb (11) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A 67.0 ppb (52) 0.4 ppb (4) N/A 8.4 μg/m3 (35) 52.0
 
Nov. 10, 2019, 8 p.m. 13.1 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A 57.0 ppb (44) 0.37 ppb (4) N/A 3.7 μg/m3 (15) 44.0
 
Nov. 10, 2019, 7 p.m. 7.4 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) 0.24 ppb (3) N/A -1.9 μg/m3 (0) 38.0
 
Nov. 10, 2019, 6 p.m. 4.6 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.12 ppb (1) N/A N/A 35.0
 
Nov. 10, 2019, 5 p.m. 9.9 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) 0.19 ppb (2) N/A -0.9 μg/m3 (0) 27.0
 
Nov. 10, 2019, 4 p.m. 19.9 ppb (18) 7.2 ppb (7) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.34 ppb (4) N/A 2.4 μg/m3 (10) 18.0
 
Nov. 10, 2019, 3 p.m. 14.7 ppb (14) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.35 ppb (4) N/A 3.0 μg/m3 (12) 14.0
 
Nov. 10, 2019, 2 p.m. 9.1 ppb (8) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.24 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Nov. 10, 2019, 1 p.m. 7.5 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.23 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 10, 2019, noon 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.18 ppb (2) N/A 2.3 μg/m3 (10) 15.0
 
Nov. 10, 2019, 11 a.m. 8.3 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 10, 2019, 10 a.m. 6.1 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.23 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
Nov. 10, 2019, 9 a.m. 9.3 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.3 ppb (3) N/A 4.5 μg/m3 (19) 19.0
 
Nov. 10, 2019, 8 a.m. 9.3 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.28 ppb (3) N/A 1.7 μg/m3 (7) 12.0
 
Nov. 10, 2019, 7 a.m. 12.6 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) 0.33 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 10, 2019, 6 a.m. 13.0 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) 0.35 ppb (4) N/A 2.7 μg/m3 (11) 12.0
 
Nov. 10, 2019, 5 a.m. 16.0 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A N/A 13.0 ppb (10) 0.37 ppb (4) N/A 1.5 μg/m3 (6) 15.0
 
Nov. 10, 2019, 4 a.m. 15.5 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.35 ppb (4) N/A 2.2 μg/m3 (9) 14.0
 
Nov. 10, 2019, 3 a.m. 18.5 ppb (17) 0.1 ppb (0) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (11) 0.39 ppb (4) N/A 4.9 μg/m3 (20) 20.0
 
Nov. 10, 2019, 2 a.m. 18.7 ppb (17) 0.2 ppb (0) N/A 19.0 ppb (18) N/A N/A 15.0 ppb (12) 0.39 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
Nov. 10, 2019, 1 a.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.22 ppb (2) N/A 3.7 μg/m3 (15) 25.0
 
Nov. 10, 2019, midnight 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 34.0
 
Nov. 9, 2019, 11 p.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.11 ppb (1) N/A -0.9 μg/m3 (0) 37.0
 
Nov. 9, 2019, 10 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.12 ppb (1) N/A -1.2 μg/m3 (0) 37.0
 
Nov. 9, 2019, 9 p.m. 0.6 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 48.0 ppb (37) 0.1 ppb (1) N/A -1.2 μg/m3 (0) 37.0
 
Nov. 9, 2019, 8 p.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A N/A 48.0 ppb (37) 0.09 ppb (1) N/A N/A 37.0
 
Nov. 9, 2019, 7 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.1 ppb (1) N/A -2.6 μg/m3 (0) 35.0
 
Nov. 9, 2019, 6 p.m. 11.3 ppb (10) 3.2 ppb (3) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.19 ppb (2) N/A 1.5 μg/m3 (6) 28.0
 
Nov. 9, 2019, 5 p.m. 10.1 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.16 ppb (2) N/A 1.1 μg/m3 (5) 26.0
 
Nov. 9, 2019, 4 p.m. 23.6 ppb (22) 9.7 ppb (9) N/A 14.0 ppb (13) N/A N/A 22.0 ppb (17) 0.37 ppb (4) N/A 2.3 μg/m3 (10) 22.0
 
Nov. 9, 2019, 3 p.m. 33.2 ppb (31) 14.7 ppb (14) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.5 ppb (6) N/A 7.6 μg/m3 (32) 32.0
 
Nov. 9, 2019, 2 p.m. 16.1 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) 0.29 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Nov. 9, 2019, 1 p.m. 13.2 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A N/A 11.0 ppb (8) 0.25 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Nov. 9, 2019, noon 10.3 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.22 ppb (2) N/A 1.1 μg/m3 (5) 12.0
 
Nov. 9, 2019, 11 a.m. 9.9 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.22 ppb (2) N/A -1.1 μg/m3 (0) 13.0
 
Nov. 9, 2019, 10 a.m. 10.6 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.23 ppb (3) N/A 7.2 μg/m3 (30) 30.0
 
Nov. 9, 2019, 9 a.m. 13.2 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) 0.27 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
Nov. 9, 2019, 8 a.m. 13.6 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 13.0 ppb (10) 0.26 ppb (3) N/A 4.9 μg/m3 (20) 20.0
 
Nov. 9, 2019, 7 a.m. 17.7 ppb (16) 0.1 ppb (0) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (9) 0.3 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
Nov. 9, 2019, 6 a.m. 21.9 ppb (20) 0.3 ppb (0) N/A 22.0 ppb (20) N/A N/A 8.0 ppb (6) 0.36 ppb (4) N/A 3.7 μg/m3 (15) 20.0
 
Nov. 9, 2019, 5 a.m. 25.7 ppb (24) 1.6 ppb (1) N/A 24.0 ppb (22) N/A N/A 6.0 ppb (5) 0.42 ppb (5) N/A 2.7 μg/m3 (11) 24.0
 
Nov. 9, 2019, 4 a.m. 30.7 ppb (28) 4.5 ppb (4) N/A 26.0 ppb (24) N/A N/A 3.0 ppb (2) 0.47 ppb (5) N/A 5.2 μg/m3 (22) 28.0
 
Nov. 9, 2019, 3 a.m. 29.6 ppb (27) 2.5 ppb (2) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 0.46 ppb (5) N/A 5.2 μg/m3 (22) 27.0
 
Nov. 9, 2019, 2 a.m. 31.5 ppb (29) 3.1 ppb (3) N/A 28.0 ppb (26) N/A N/A 4.0 ppb (3) 0.45 ppb (5) N/A 4.9 μg/m3 (20) 29.0
 
Nov. 9, 2019, 1 a.m. 13.5 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.24 ppb (3) N/A 2.5 μg/m3 (10) 18.0
 
Nov. 9, 2019, midnight 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.12 ppb (1) N/A 0.3 μg/m3 (1) 33.0
 
Nov. 8, 2019, 11 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.11 ppb (1) N/A -2.6 μg/m3 (0) 35.0
 
Nov. 8, 2019, 10 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.11 ppb (1) N/A -4.3 μg/m3 (0) 35.0
 
Nov. 8, 2019, 9 p.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.1 ppb (1) N/A -2.9 μg/m3 (0) 35.0
 
Nov. 8, 2019, 8 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.1 ppb (1) N/A -4.3 μg/m3 (0) 35.0
 
Nov. 8, 2019, 7 p.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.1 ppb (1) N/A -0.7 μg/m3 (0) 35.0
 
Nov. 8, 2019, 6 p.m. 15.3 ppb (14) 4.8 ppb (4) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) 0.17 ppb (2) N/A 2.7 μg/m3 (11) 26.0
 
Nov. 8, 2019, 5 p.m. 36.8 ppb (34) 15.9 ppb (15) N/A 21.0 ppb (19) N/A N/A 19.0 ppb (15) 0.35 ppb (4) N/A 6.4 μg/m3 (27) 34.0
 
Nov. 8, 2019, 4 p.m. 65.4 ppb (62) 39.2 ppb (36) N/A 26.0 ppb (24) N/A N/A 11.0 ppb (8) 0.66 ppb (7) N/A 11.6 μg/m3 (48) 62.0
 
Nov. 8, 2019, 3 p.m. 50.9 ppb (47) 27.5 ppb (25) N/A 24.0 ppb (22) N/A N/A 7.0 ppb (5) 0.58 ppb (6) N/A 9.7 μg/m3 (40) 47.0
 
Nov. 8, 2019, 2 p.m. 34.8 ppb (32) 12.3 ppb (11) N/A 23.0 ppb (21) N/A N/A 4.0 ppb (3) 0.5 ppb (6) N/A 4.7 μg/m3 (20) 32.0
 
Nov. 8, 2019, 1 p.m. 22.2 ppb (21) 2.7 ppb (3) N/A 20.0 ppb (19) N/A N/A 7.0 ppb (5) 0.35 ppb (4) N/A 3.7 μg/m3 (15) 21.0
 
Nov. 8, 2019, noon 9.4 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.22 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
Nov. 8, 2019, 11 a.m. 10.5 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.22 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Nov. 8, 2019, 10 a.m. 9.8 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.25 ppb (3) N/A 2.5 μg/m3 (10) 13.0
 
Nov. 8, 2019, 9 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.26 ppb (3) N/A 7.8 μg/m3 (32) 32.0
 
Nov. 8, 2019, 8 a.m. 13.2 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) 0.33 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
Nov. 8, 2019, 7 a.m. 18.1 ppb (17) 0.0 ppb (0) N/A 18.0 ppb (17) N/A N/A 16.0 ppb (12) 0.42 ppb (5) N/A 11.3 μg/m3 (47) 47.0
 
Nov. 8, 2019, 6 a.m. 21.2 ppb (20) 0.0 ppb (0) N/A 21.0 ppb (19) N/A N/A 17.0 ppb (13) 0.47 ppb (5) N/A 10.3 μg/m3 (43) 43.0
 
Nov. 8, 2019, 5 a.m. 24.8 ppb (23) 0.0 ppb (0) N/A 25.0 ppb (23) N/A N/A 16.0 ppb (12) 0.52 ppb (6) N/A 17.6 μg/m3 (62) 62.0
 
Nov. 8, 2019, 4 a.m. 34.9 ppb (32) 0.5 ppb (0) N/A 34.0 ppb (31) N/A N/A 9.0 ppb (7) 0.59 ppb (7) N/A 12.3 μg/m3 (51) 51.0
 
Nov. 8, 2019, 3 a.m. 32.6 ppb (30) 0.2 ppb (0) N/A 33.0 ppb (31) N/A N/A 12.0 ppb (9) 0.6 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 8, 2019, 2 a.m. 29.2 ppb (27) 0.0 ppb (0) N/A 29.0 ppb (27) N/A N/A 22.0 ppb (17) 0.49 ppb (5) N/A 16.6 μg/m3 (60) 60.0
 
Nov. 8, 2019, 1 a.m. 16.6 ppb (15) 0.0 ppb (0) N/A 17.0 ppb (16) N/A N/A 44.0 ppb (34) 0.38 ppb (4) N/A 17.9 μg/m3 (63) 63.0
 
Nov. 8, 2019, midnight 12.2 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 63.0 ppb (48) 0.36 ppb (4) N/A 14.7 μg/m3 (56) 56.0
 
Nov. 7, 2019, 11 p.m. 12.4 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 62.0 ppb (48) 0.27 ppb (3) N/A 5.9 μg/m3 (25) 48.0
 
Nov. 7, 2019, 10 p.m. 9.0 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 63.0 ppb (48) 0.23 ppb (3) N/A 5.4 μg/m3 (23) 48.0
 
Nov. 7, 2019, 9 p.m. 9.8 ppb (9) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 62.0 ppb (48) 0.25 ppb (3) N/A -0.9 μg/m3 (0) 48.0
 
Nov. 7, 2019, 8 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (45) 0.15 ppb (2) N/A -0.7 μg/m3 (0) 45.0
 
Nov. 7, 2019, 7 p.m. 5.5 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) 0.13 ppb (1) N/A 1.9 μg/m3 (8) 38.0
 
Nov. 7, 2019, 6 p.m. 10.8 ppb (10) 2.5 ppb (2) N/A 8.0 ppb (7) N/A N/A 43.0 ppb (33) 0.17 ppb (2) N/A -0.7 μg/m3 (0) 33.0
 
Nov. 7, 2019, 5 p.m. 29.4 ppb (27) 9.9 ppb (9) N/A 20.0 ppb (19) N/A N/A 27.0 ppb (21) 0.37 ppb (4) N/A 15.2 μg/m3 (57) 57.0
 
Nov. 7, 2019, 4 p.m. 57.6 ppb (54) 27.6 ppb (26) N/A 30.0 ppb (28) N/A N/A 13.0 ppb (10) 0.64 ppb (7) N/A 17.2 μg/m3 (61) 61.0
 
Nov. 7, 2019, 3 p.m. 63.1 ppb (60) 37.2 ppb (34) N/A 26.0 ppb (24) N/A N/A 5.0 ppb (4) 0.67 ppb (7) N/A 18.7 μg/m3 (64) 64.0
 
Nov. 7, 2019, 2 p.m. 34.4 ppb (32) 13.0 ppb (12) N/A 21.0 ppb (19) N/A N/A 3.0 ppb (2) 0.51 ppb (6) N/A 8.2 μg/m3 (34) 34.0
 
Nov. 7, 2019, 1 p.m. 21.6 ppb (20) 3.3 ppb (3) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (2) 0.43 ppb (5) N/A 8.4 μg/m3 (35) 35.0
 
Nov. 7, 2019, noon 15.2 ppb (14) 0.4 ppb (0) N/A 15.0 ppb (14) N/A N/A 7.0 ppb (5) 0.37 ppb (4) N/A 10.6 μg/m3 (44) 44.0
 
Nov. 7, 2019, 11 a.m. 15.7 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A N/A 8.0 ppb (6) 0.36 ppb (4) N/A 10.8 μg/m3 (45) 45.0
 
Nov. 7, 2019, 10 a.m. 16.2 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 8.0 ppb (6) 0.39 ppb (4) N/A 9.4 μg/m3 (39) 39.0
 
Nov. 7, 2019, 9 a.m. 17.3 ppb (16) 0.0 ppb (0) N/A 17.0 ppb (16) N/A N/A 12.0 ppb (9) 0.4 ppb (4) N/A 10.9 μg/m3 (45) 45.0
 
Nov. 7, 2019, 8 a.m. 19.3 ppb (18) 0.1 ppb (0) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.44 ppb (5) N/A 9.6 μg/m3 (40) 40.0
 
Nov. 7, 2019, 7 a.m. 24.3 ppb (23) 0.7 ppb (1) N/A 24.0 ppb (22) N/A N/A 7.0 ppb (5) 0.5 ppb (6) N/A 5.9 μg/m3 (25) 25.0
 
Nov. 7, 2019, 6 a.m. 31.6 ppb (29) 2.2 ppb (2) N/A 30.0 ppb (28) N/A N/A 4.0 ppb (3) 0.6 ppb (7) N/A 22.3 μg/m3 (72) 72.0
 
Nov. 7, 2019, 5 a.m. 32.4 ppb (30) 1.2 ppb (1) N/A 31.0 ppb (29) N/A N/A 7.0 ppb (5) 0.58 ppb (6) N/A 15.4 μg/m3 (57) 57.0
 
Nov. 7, 2019, 4 a.m. 31.2 ppb (29) 0.3 ppb (0) N/A 31.0 ppb (29) N/A N/A 10.0 ppb (8) 0.56 ppb (6) N/A 9.6 μg/m3 (40) 40.0
 
Nov. 7, 2019, 3 a.m. 29.1 ppb (27) 0.1 ppb (0) N/A 29.0 ppb (27) N/A N/A 16.0 ppb (12) 0.56 ppb (6) N/A 19.4 μg/m3 (66) 66.0