ID: 972

AQSQID: 060376012

Site Name: Santa Clarita

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

Updated: Sept. 29, 2020, 10:38 p.m.

Location: Newhall (Newhall), CA

Reporting: True, Located: True

Current AQI: 46.0

Newhall (Newhall) CA, US: 34.3833, -118.5283

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 29, 2020, 9 p.m. 1.0 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (46) 0.18 ppb (2) N/A -2.5 μg/m3 (0) 46.0
 
Sept. 29, 2020, 8 p.m. 1.1 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (45) 0.18 ppb (2) N/A 0.9 μg/m3 (4) 45.0
 
Sept. 29, 2020, 7 p.m. 0.6 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) 0.17 ppb (2) N/A 3.3 μg/m3 (14) 44.0
 
Sept. 29, 2020, 6 p.m. 1.4 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) 0.16 ppb (2) N/A 3.5 μg/m3 (15) 42.0
 
Sept. 29, 2020, 5 p.m. 15.0 ppb (14) 2.8 ppb (3) N/A 12.0 ppb (11) N/A N/A 42.0 ppb (32) 0.28 ppb (3) N/A 5.2 μg/m3 (22) 32.0
 
Sept. 29, 2020, 4 p.m. 25.7 ppb (24) 7.1 ppb (7) N/A 19.0 ppb (18) N/A N/A 25.0 ppb (19) 0.36 ppb (4) N/A 11.1 μg/m3 (46) 46.0
 
Sept. 29, 2020, 3 p.m. 46.8 ppb (43) 23.3 ppb (22) N/A 24.0 ppb (22) N/A N/A 12.0 ppb (9) 0.51 ppb (6) N/A 12.4 μg/m3 (51) 51.0
 
Sept. 29, 2020, 2 p.m. 38.2 ppb (35) 12.8 ppb (12) N/A 26.0 ppb (24) N/A N/A 5.0 ppb (4) 0.5 ppb (6) N/A 8.1 μg/m3 (34) 35.0
 
Sept. 29, 2020, 1 p.m. 24.9 ppb (23) 2.0 ppb (2) N/A 23.0 ppb (21) N/A N/A 5.0 ppb (4) 0.4 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
Sept. 29, 2020, noon 13.2 ppb (12) -0.8 ppb (0) N/A 14.0 ppb (13) N/A N/A 12.0 ppb (9) 0.27 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
Sept. 29, 2020, 11 a.m. 9.3 ppb (9) -0.9 ppb (0) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.21 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 29, 2020, 10 a.m. 7.7 ppb (7) -0.9 ppb (0) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.21 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
Sept. 29, 2020, 9 a.m. 10.1 ppb (9) -0.8 ppb (0) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.27 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Sept. 29, 2020, 8 a.m. 9.7 ppb (9) -0.8 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.29 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
Sept. 29, 2020, 7 a.m. 14.2 ppb (13) -0.8 ppb (0) N/A 15.0 ppb (14) N/A N/A 19.0 ppb (15) 0.35 ppb (4) N/A 12.5 μg/m3 (51) 51.0
 
Sept. 29, 2020, 6 a.m. 14.5 ppb (13) -0.7 ppb (0) N/A 15.0 ppb (14) N/A N/A 18.0 ppb (14) 0.36 ppb (4) N/A 13.3 μg/m3 (53) 53.0
 
Sept. 29, 2020, 5 a.m. 22.0 ppb (20) -0.7 ppb (0) N/A 23.0 ppb (21) N/A N/A 14.0 ppb (11) 0.43 ppb (5) N/A 13.1 μg/m3 (52) 52.0
 
Sept. 29, 2020, 4 a.m. 21.5 ppb (20) -0.8 ppb (0) N/A 22.0 ppb (20) N/A N/A 18.0 ppb (14) 0.37 ppb (4) N/A 12.8 μg/m3 (52) 52.0
 
Sept. 29, 2020, 3 a.m. 21.4 ppb (20) -0.9 ppb (0) N/A 22.0 ppb (20) N/A N/A 24.0 ppb (18) 0.35 ppb (4) N/A 16.5 μg/m3 (60) 60.0
 
Sept. 29, 2020, 2 a.m. 9.1 ppb (8) -0.9 ppb (0) N/A 10.0 ppb (9) N/A N/A 48.0 ppb (37) 0.27 ppb (3) N/A 16.7 μg/m3 (60) 60.0
 
Sept. 29, 2020, 1 a.m. 7.7 ppb (7) -1.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 58.0 ppb (45) 0.28 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
Sept. 29, 2020, midnight 5.1 ppb (5) -0.9 ppb (0) N/A 6.0 ppb (6) N/A N/A 65.0 ppb (50) 0.23 ppb (3) N/A 9.1 μg/m3 (38) 50.0
 
Sept. 28, 2020, 11 p.m. 3.9 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A N/A 72.0 ppb (56) 0.24 ppb (3) N/A 10.1 μg/m3 (42) 56.0
 
Sept. 28, 2020, 10 p.m. 4.5 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A N/A 81.0 ppb (63) 0.3 ppb (3) N/A 6.7 μg/m3 (28) 63.0
 
Sept. 28, 2020, 9 p.m. 1.0 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) 0.18 ppb (2) N/A 2.1 μg/m3 (9) 42.0
 
Sept. 28, 2020, 8 p.m. 0.7 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.14 ppb (2) N/A 3.2 μg/m3 (13) 37.0
 
Sept. 28, 2020, 7 p.m. 0.8 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.12 ppb (1) N/A 7.1 μg/m3 (30) 35.0
 
Sept. 28, 2020, 6 p.m. 0.8 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.1 ppb (1) N/A 6.2 μg/m3 (26) 35.0
 
Sept. 28, 2020, 5 p.m. 1.4 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 33.0
 
Sept. 28, 2020, 4 p.m. 15.4 ppb (14) 4.2 ppb (4) N/A 11.0 ppb (10) N/A N/A 32.0 ppb (25) 0.26 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
Sept. 28, 2020, 3 p.m. 50.1 ppb (46) 25.0 ppb (23) N/A 25.0 ppb (23) N/A N/A 10.0 ppb (8) 0.61 ppb (7) N/A 29.6 μg/m3 (87) 87.0
 
Sept. 28, 2020, 2 p.m. 37.6 ppb (35) 19.6 ppb (18) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (2) 0.58 ppb (6) N/A 22.6 μg/m3 (73) 73.0
 
Sept. 28, 2020, 1 p.m. 22.2 ppb (21) 7.5 ppb (7) N/A 15.0 ppb (14) N/A N/A 2.0 ppb (2) 0.44 ppb (5) N/A 28.6 μg/m3 (85) 85.0
 
Sept. 28, 2020, noon 15.6 ppb (14) 1.3 ppb (1) N/A 14.0 ppb (13) N/A N/A 2.0 ppb (2) 0.39 ppb (4) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 28, 2020, 11 a.m. 12.3 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 6.0 ppb (5) 0.32 ppb (4) N/A 18.9 μg/m3 (65) 65.0
 
Sept. 28, 2020, 10 a.m. 5.3 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.21 ppb (2) N/A 12.8 μg/m3 (52) 52.0
 
Sept. 28, 2020, 9 a.m. 6.4 ppb (6) -0.7 ppb (0) N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) 0.22 ppb (2) N/A 19.7 μg/m3 (66) 66.0
 
Sept. 28, 2020, 8 a.m. 9.2 ppb (9) -0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.32 ppb (4) N/A 17.7 μg/m3 (62) 62.0
 
Sept. 28, 2020, 7 a.m. 10.6 ppb (10) -0.6 ppb (0) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) 0.34 ppb (4) N/A 15.2 μg/m3 (57) 57.0
 
Sept. 28, 2020, 6 a.m. 9.2 ppb (9) -0.7 ppb (0) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.3 ppb (3) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 28, 2020, 5 a.m. 17.7 ppb (16) -0.7 ppb (0) N/A 18.0 ppb (17) N/A N/A 23.0 ppb (18) 0.4 ppb (4) N/A 17.2 μg/m3 (61) 61.0
 
Sept. 28, 2020, 4 a.m. 15.9 ppb (15) -0.9 ppb (0) N/A 17.0 ppb (16) N/A N/A 32.0 ppb (25) 0.35 ppb (4) N/A 18.2 μg/m3 (63) 63.0
 
Sept. 28, 2020, 3 a.m. 14.9 ppb (14) -0.9 ppb (0) N/A 16.0 ppb (15) N/A N/A 41.0 ppb (32) 0.37 ppb (4) N/A 16.7 μg/m3 (60) 60.0
 
Sept. 28, 2020, 2 a.m. 13.0 ppb (12) -0.9 ppb (0) N/A 14.0 ppb (13) N/A N/A 53.0 ppb (41) 0.36 ppb (4) N/A 16.7 μg/m3 (60) 60.0
 
Sept. 28, 2020, 1 a.m. 8.6 ppb (8) -1.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 79.0 ppb (62) 0.31 ppb (3) N/A 22.6 μg/m3 (73) 73.0
 
Sept. 28, 2020, midnight 6.6 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 92.0 ppb (72) 0.3 ppb (3) N/A 22.4 μg/m3 (72) 72.0
 
Sept. 27, 2020, 11 p.m. 6.3 ppb (6) -0.9 ppb (0) N/A 7.0 ppb (6) N/A N/A 96.0 ppb (76) 0.31 ppb (3) N/A 23.8 μg/m3 (75) 76.0
 
Sept. 27, 2020, 10 p.m. 5.5 ppb (5) -0.9 ppb (0) N/A 6.0 ppb (6) N/A N/A 94.0 ppb (74) 0.32 ppb (4) N/A 19.2 μg/m3 (65) 74.0
 
Sept. 27, 2020, 9 p.m. 7.4 ppb (7) -0.8 ppb (0) N/A 8.0 ppb (7) N/A N/A 96.0 ppb (76) 0.37 ppb (4) N/A 18.9 μg/m3 (65) 76.0
 
Sept. 27, 2020, 8 p.m. 9.4 ppb (9) -0.7 ppb (0) N/A 10.0 ppb (9) N/A N/A 98.0 ppb (78) 0.44 ppb (5) N/A 28.9 μg/m3 (86) 86.0
 
Sept. 27, 2020, 7 p.m. 8.4 ppb (8) -0.6 ppb (0) N/A 9.0 ppb (8) N/A N/A 82.0 ppb (64) 0.44 ppb (5) N/A 20.9 μg/m3 (69) 69.0
 
Sept. 27, 2020, 6 p.m. 4.0 ppb (4) -0.8 ppb (0) N/A 5.0 ppb (5) N/A N/A 63.0 ppb (48) 0.31 ppb (3) N/A 29.6 μg/m3 (87) 87.0
 
Sept. 27, 2020, 5 p.m. 8.4 ppb (8) -0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 53.0 ppb (41) 0.35 ppb (4) N/A 22.9 μg/m3 (73) 73.0
 
Sept. 27, 2020, 4 p.m. 12.8 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 40.0 ppb (31) 0.42 ppb (5) N/A 20.2 μg/m3 (67) 67.0
 
Sept. 27, 2020, 3 p.m. 19.3 ppb (18) 3.3 ppb (3) N/A 16.0 ppb (15) N/A N/A 20.0 ppb (15) 0.49 ppb (5) N/A 20.4 μg/m3 (68) 68.0
 
Sept. 27, 2020, 2 p.m. 14.4 ppb (13) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.39 ppb (4) N/A 17.4 μg/m3 (61) 61.0
 
Sept. 27, 2020, 1 p.m. 9.9 ppb (9) -0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 13.0 ppb (10) 0.35 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 27, 2020, noon 9.3 ppb (9) -0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.32 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 27, 2020, 11 a.m. 13.0 ppb (12) -0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.34 ppb (4) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 27, 2020, 10 a.m. 12.0 ppb (11) -0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 15.0 ppb (12) 0.35 ppb (4) N/A 15.2 μg/m3 (57) 57.0
 
Sept. 27, 2020, 9 a.m. 13.3 ppb (12) -0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 16.0 ppb (12) 0.44 ppb (5) N/A 16.7 μg/m3 (60) 60.0
 
Sept. 27, 2020, 8 a.m. 12.7 ppb (12) -0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) 0.48 ppb (5) N/A 22.1 μg/m3 (71) 71.0
 
Sept. 27, 2020, 7 a.m. 14.0 ppb (13) -0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 24.0 ppb (18) 0.44 ppb (5) N/A 25.8 μg/m3 (79) 79.0
 
Sept. 27, 2020, 6 a.m. 14.6 ppb (14) -0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 26.0 ppb (20) 0.45 ppb (5) N/A 24.6 μg/m3 (77) 77.0
 
Sept. 27, 2020, 5 a.m. 12.1 ppb (11) -0.7 ppb (0) N/A 13.0 ppb (12) N/A N/A 34.0 ppb (26) 0.39 ppb (4) N/A 24.5 μg/m3 (77) 77.0
 
Sept. 27, 2020, 4 a.m. 15.0 ppb (14) -0.8 ppb (0) N/A 16.0 ppb (15) N/A N/A 43.0 ppb (33) 0.49 ppb (5) N/A 26.0 μg/m3 (80) 80.0
 
Sept. 27, 2020, 3 a.m. 11.5 ppb (11) -1.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 56.0 ppb (43) 0.38 ppb (4) N/A 20.9 μg/m3 (69) 69.0
 
Sept. 27, 2020, 2 a.m. 10.2 ppb (9) -1.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 70.0 ppb (54) 0.35 ppb (4) N/A 24.3 μg/m3 (76) 76.0
 
Sept. 27, 2020, 1 a.m. 9.6 ppb (9) -1.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 90.0 ppb (71) 0.37 ppb (4) N/A 22.6 μg/m3 (73) 73.0
 
Sept. 27, 2020, midnight 8.7 ppb (8) -0.9 ppb (0) N/A 10.0 ppb (9) N/A N/A 96.0 ppb (76) 0.35 ppb (4) N/A 29.6 μg/m3 (87) 87.0
 
Sept. 26, 2020, 11 p.m. 7.6 ppb (7) -0.9 ppb (0) N/A 9.0 ppb (8) N/A N/A 102.0 ppb (81) 0.36 ppb (4) N/A 27.0 μg/m3 (82) 82.0
 
Sept. 26, 2020, 10 p.m. 7.8 ppb (7) -0.9 ppb (0) N/A 9.0 ppb (8) N/A N/A 99.0 ppb (78) 0.34 ppb (4) N/A 24.8 μg/m3 (77) 78.0
 
Sept. 26, 2020, 9 p.m. 7.3 ppb (7) -0.7 ppb (0) N/A 8.0 ppb (7) N/A N/A 91.0 ppb (72) 0.33 ppb (4) N/A 20.7 μg/m3 (69) 72.0
 
Sept. 26, 2020, 8 p.m. 9.5 ppb (9) -0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 80.0 ppb (62) 0.36 ppb (4) N/A 26.5 μg/m3 (81) 81.0
 
Sept. 26, 2020, 7 p.m. 15.8 ppb (15) 0.9 ppb (1) N/A 15.0 ppb (14) N/A N/A 63.0 ppb (48) 0.43 ppb (5) N/A 26.3 μg/m3 (80) 80.0
 
Sept. 26, 2020, 6 p.m. 10.8 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 57.0 ppb (44) 0.34 ppb (4) N/A 12.6 μg/m3 (51) 51.0
 
Sept. 26, 2020, 5 p.m. 9.3 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 53.0 ppb (41) 0.28 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
Sept. 26, 2020, 4 p.m. 17.2 ppb (16) 2.4 ppb (2) N/A 15.0 ppb (14) N/A N/A 40.0 ppb (31) 0.39 ppb (4) N/A 14.8 μg/m3 (56) 56.0
 
Sept. 26, 2020, 3 p.m. 32.6 ppb (30) 9.0 ppb (8) N/A 24.0 ppb (22) N/A N/A 20.0 ppb (15) 0.65 ppb (7) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 26, 2020, 2 p.m. 23.1 ppb (21) 4.3 ppb (4) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (9) 0.45 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 26, 2020, 1 p.m. 14.1 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 8.0 ppb (6) 0.35 ppb (4) N/A 11.6 μg/m3 (48) 48.0
 
Sept. 26, 2020, noon 13.9 ppb (13) -0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 10.0 ppb (8) 0.38 ppb (4) N/A 11.8 μg/m3 (49) 49.0
 
Sept. 26, 2020, 11 a.m. 18.9 ppb (18) -0.3 ppb (0) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) 0.43 ppb (5) N/A 13.8 μg/m3 (54) 54.0
 
Sept. 26, 2020, 10 a.m. 13.4 ppb (12) -0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 18.0 ppb (14) 0.4 ppb (4) N/A 16.9 μg/m3 (60) 60.0
 
Sept. 26, 2020, 9 a.m. 11.6 ppb (11) -0.6 ppb (0) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.4 ppb (4) N/A 17.7 μg/m3 (62) 62.0
 
Sept. 26, 2020, 8 a.m. 10.7 ppb (10) -0.6 ppb (0) N/A 11.0 ppb (10) N/A N/A 29.0 ppb (22) 0.41 ppb (5) N/A 22.6 μg/m3 (73) 73.0
 
Sept. 26, 2020, 7 a.m. 14.5 ppb (13) -0.7 ppb (0) N/A 15.0 ppb (14) N/A N/A 28.0 ppb (22) 0.45 ppb (5) N/A 21.4 μg/m3 (70) 70.0
 
Sept. 26, 2020, 6 a.m. 15.4 ppb (14) -0.8 ppb (0) N/A 16.0 ppb (15) N/A N/A 28.0 ppb (22) 0.44 ppb (5) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 26, 2020, 5 a.m. 17.1 ppb (16) -0.9 ppb (0) N/A 18.0 ppb (17) N/A N/A 30.0 ppb (23) 0.45 ppb (5) N/A 18.2 μg/m3 (63) 63.0
 
Sept. 26, 2020, 4 a.m. 14.1 ppb (13) -1.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 36.0 ppb (28) 0.37 ppb (4) N/A 20.9 μg/m3 (69) 69.0
 
Sept. 26, 2020, 3 a.m. 14.1 ppb (13) -1.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 46.0 ppb (35) 0.34 ppb (4) N/A 17.7 μg/m3 (62) 62.0
 
Sept. 26, 2020, 2 a.m. 12.6 ppb (12) -0.9 ppb (0) N/A 14.0 ppb (13) N/A N/A 61.0 ppb (47) 0.31 ppb (3) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 26, 2020, 1 a.m. 10.0 ppb (9) -1.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 70.0 ppb (54) 0.29 ppb (3) N/A 23.6 μg/m3 (75) 75.0
 
Sept. 26, 2020, midnight 8.7 ppb (8) -0.7 ppb (0) N/A 9.0 ppb (8) N/A N/A 81.0 ppb (63) 0.28 ppb (3) N/A 19.2 μg/m3 (65) 65.0
 
Sept. 25, 2020, 11 p.m. 7.3 ppb (7) -0.8 ppb (0) N/A 8.0 ppb (7) N/A N/A 93.0 ppb (73) 0.3 ppb (3) N/A 19.2 μg/m3 (65) 73.0
 
Sept. 25, 2020, 10 p.m. 7.4 ppb (7) -0.7 ppb (0) N/A 8.0 ppb (7) N/A N/A 92.0 ppb (72) 0.31 ppb (3) N/A 17.9 μg/m3 (63) 72.0
 
Sept. 25, 2020, 9 p.m. 7.0 ppb (6) -0.7 ppb (0) N/A 8.0 ppb (7) N/A N/A 96.0 ppb (76) 0.35 ppb (4) N/A 18.4 μg/m3 (64) 76.0
 
Sept. 25, 2020, 8 p.m. 7.4 ppb (7) -0.6 ppb (0) N/A 8.0 ppb (7) N/A N/A 85.0 ppb (67) 0.33 ppb (4) N/A 15.5 μg/m3 (57) 67.0
 
Sept. 25, 2020, 7 p.m. 11.5 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 75.0 ppb (58) 0.37 ppb (4) N/A 15.1 μg/m3 (57) 58.0
 
Sept. 25, 2020, 6 p.m. 9.0 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 58.0 ppb (45) 0.29 ppb (3) N/A 11.6 μg/m3 (48) 48.0
 
Sept. 25, 2020, 5 p.m. 15.2 ppb (14) 2.5 ppb (2) N/A 13.0 ppb (12) N/A N/A 44.0 ppb (34) 0.32 ppb (4) N/A 12.1 μg/m3 (50) 50.0
 
Sept. 25, 2020, 4 p.m. 34.3 ppb (32) 11.4 ppb (11) N/A 23.0 ppb (21) N/A N/A 23.0 ppb (18) 0.45 ppb (5) N/A 11.4 μg/m3 (48) 48.0
 
Sept. 25, 2020, 3 p.m. 38.5 ppb (36) 13.8 ppb (13) N/A 25.0 ppb (23) N/A N/A 14.0 ppb (11) 0.54 ppb (6) N/A 15.7 μg/m3 (58) 58.0
 
Sept. 25, 2020, 2 p.m. 38.8 ppb (36) 14.5 ppb (13) N/A 24.0 ppb (22) N/A N/A 7.0 ppb (5) 0.62 ppb (7) N/A 10.8 μg/m3 (45) 45.0
 
Sept. 25, 2020, 1 p.m. 28.9 ppb (27) 5.9 ppb (5) N/A 23.0 ppb (21) N/A N/A 5.0 ppb (4) 0.42 ppb (5) N/A 10.1 μg/m3 (42) 42.0
 
Sept. 25, 2020, noon 9.6 ppb (9) -0.8 ppb (0) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.29 ppb (3) N/A 11.6 μg/m3 (48) 48.0
 
Sept. 25, 2020, 11 a.m. 13.8 ppb (13) -0.9 ppb (0) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) 0.28 ppb (3) N/A 13.1 μg/m3 (52) 52.0
 
Sept. 25, 2020, 10 a.m. 7.7 ppb (7) -0.9 ppb (0) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.24 ppb (3) N/A 13.3 μg/m3 (53) 53.0
 
Sept. 25, 2020, 9 a.m. 6.5 ppb (6) -0.9 ppb (0) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.22 ppb (2) N/A 12.4 μg/m3 (51) 51.0
 
Sept. 25, 2020, 8 a.m. 5.5 ppb (5) -1.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.23 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Sept. 25, 2020, 7 a.m. 7.4 ppb (7) -1.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.24 ppb (3) N/A 8.9 μg/m3 (37) 37.0
 
Sept. 25, 2020, 6 a.m. 8.4 ppb (8) -0.8 ppb (0) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.28 ppb (3) N/A 12.6 μg/m3 (51) 51.0
 
Sept. 25, 2020, 5 a.m. 13.8 ppb (13) -0.9 ppb (0) N/A 15.0 ppb (14) N/A N/A 29.0 ppb (22) 0.38 ppb (4) N/A 16.9 μg/m3 (60) 60.0
 
Sept. 25, 2020, 4 a.m. 17.4 ppb (16) -1.0 ppb (0) N/A 19.0 ppb (18) N/A N/A 35.0 ppb (27) 0.44 ppb (5) N/A 21.1 μg/m3 (69) 69.0
 
Sept. 25, 2020, 3 a.m. 15.9 ppb (15) -1.0 ppb (0) N/A 17.0 ppb (16) N/A N/A 39.0 ppb (30) 0.41 ppb (5) N/A 22.1 μg/m3 (71) 71.0
 
Sept. 25, 2020, 2 a.m. 7.1 ppb (7) -1.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 52.0 ppb (40) 0.27 ppb (3) N/A 22.1 μg/m3 (71) 71.0
 
Sept. 25, 2020, 1 a.m. 8.4 ppb (8) -1.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 69.0 ppb (53) 0.29 ppb (3) N/A 13.8 μg/m3 (54) 54.0
 
Sept. 25, 2020, midnight 9.2 ppb (9) -0.9 ppb (0) N/A 10.0 ppb (9) N/A N/A 95.0 ppb (75) 0.36 ppb (4) N/A 19.2 μg/m3 (65) 75.0
 
Sept. 24, 2020, 11 p.m. 10.2 ppb (9) -0.9 ppb (0) N/A 11.0 ppb (10) N/A N/A 120.0 ppb (96) 0.47 ppb (5) N/A 25.0 μg/m3 (78) 96.0
 
Sept. 24, 2020, 10 p.m. 10.5 ppb (10) -0.8 ppb (0) N/A 11.0 ppb (10) N/A N/A 124.0 ppb (99) 0.52 ppb (6) N/A 29.4 μg/m3 (87) 99.0
 
Sept. 24, 2020, 9 p.m. 12.5 ppb (12) -0.6 ppb (0) N/A 13.0 ppb (12) N/A N/A 120.0 ppb (96) 0.59 ppb (7) N/A 34.0 μg/m3 (97) 97.0
 
Sept. 24, 2020, 8 p.m. 12.0 ppb (11) -0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 111.0 ppb (88) 0.61 ppb (7) N/A 27.5 μg/m3 (83) 88.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.9 μg/m3 (84) 84.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.1 μg/m3 (74) 74.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.5 μg/m3 (77) 77.0
 
Sept. 24, 2020, 4 p.m. 47.0 ppb (44) 14.9 ppb (14) N/A 32.0 ppb (30) N/A N/A 29.0 ppb (22) 0.67 ppb (7) N/A 34.0 μg/m3 (97) 97.0
 
Sept. 24, 2020, 3 p.m. 67.1 ppb (64) 29.1 ppb (27) N/A 38.0 ppb (35) N/A N/A 10.0 ppb (8) 0.99 ppb (11) N/A 31.9 μg/m3 (92) 92.0
 
Sept. 24, 2020, 2 p.m. 46.0 ppb (43) 15.7 ppb (15) N/A 30.0 ppb (28) N/A N/A 6.0 ppb (5) 0.78 ppb (9) N/A 39.7 μg/m3 (110) 110.0
 
Sept. 24, 2020, 1 p.m. 32.7 ppb (30) 3.6 ppb (3) N/A 29.0 ppb (27) N/A N/A 5.0 ppb (4) 0.66 ppb (7) N/A 39.7 μg/m3 (110) 110.0
 
Sept. 24, 2020, noon 19.8 ppb (18) 0.5 ppb (0) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (11) 0.56 ppb (6) N/A 36.5 μg/m3 (102) 102.0
 
Sept. 24, 2020, 11 a.m. 9.6 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.36 ppb (4) N/A 29.4 μg/m3 (87) 87.0
 
Sept. 24, 2020, 10 a.m. 18.6 ppb (17) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (11) 0.35 ppb (4) N/A 22.1 μg/m3 (71) 71.0
 
Sept. 24, 2020, 9 a.m. 11.2 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 21.0 ppb (16) 0.34 ppb (4) N/A 11.6 μg/m3 (48) 48.0
 
Sept. 24, 2020, 8 a.m. 11.3 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) 0.35 ppb (4) N/A 9.4 μg/m3 (39) 39.0
 
Sept. 24, 2020, 7 a.m. 11.0 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.32 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 24, 2020, 6 a.m. 13.0 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.36 ppb (4) N/A 7.2 μg/m3 (30) 30.0
 
Sept. 24, 2020, 5 a.m. 18.2 ppb (17) 0.2 ppb (0) N/A 18.0 ppb (17) N/A N/A 18.0 ppb (14) 0.4 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Sept. 24, 2020, 4 a.m. 17.4 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 20.0 ppb (15) 0.34 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 24, 2020, 3 a.m. 9.9 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) 0.25 ppb (3) N/A 8.7 μg/m3 (36) 36.0
 
Sept. 24, 2020, 2 a.m. 6.6 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.21 ppb (2) N/A 10.1 μg/m3 (42) 42.0
 
Sept. 24, 2020, 1 a.m. 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (38) 0.22 ppb (2) N/A 10.9 μg/m3 (45) 45.0
 
Sept. 24, 2020, midnight 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 60.0 ppb (46) 0.22 ppb (2) N/A 10.9 μg/m3 (45) 46.0
 
Sept. 23, 2020, 11 p.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (52) 0.22 ppb (2) N/A 9.3 μg/m3 (39) 52.0
 
Sept. 23, 2020, 10 p.m. 4.9 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 73.0 ppb (57) 0.23 ppb (3) N/A 10.1 μg/m3 (42) 57.0
 
Sept. 23, 2020, 9 p.m. 5.7 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 80.0 ppb (62) 0.27 ppb (3) N/A 12.1 μg/m3 (50) 62.0
 
Sept. 23, 2020, 8 p.m. 9.2 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 94.0 ppb (74) 0.35 ppb (4) N/A 21.1 μg/m3 (69) 74.0
 
Sept. 23, 2020, 7 p.m. 12.3 ppb (11) 1.5 ppb (1) N/A 11.0 ppb (10) N/A N/A 82.0 ppb (64) 0.38 ppb (4) N/A 18.6 μg/m3 (64) 64.0
 
Sept. 23, 2020, 6 p.m. 10.4 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 70.0 ppb (54) 0.37 ppb (4) N/A N/A 54.0
 
Sept. 23, 2020, 5 p.m. 20.3 ppb (19) 4.1 ppb (4) N/A 16.0 ppb (15) N/A N/A 51.0 ppb (39) 0.42 ppb (5) N/A N/A 39.0
 
Sept. 23, 2020, 4 p.m. 31.5 ppb (29) 8.6 ppb (8) N/A 23.0 ppb (21) N/A N/A 30.0 ppb (23) 0.49 ppb (5) N/A N/A 29.0
 
Sept. 23, 2020, 3 p.m. 39.4 ppb (36) 14.5 ppb (13) N/A 25.0 ppb (23) N/A N/A 16.0 ppb (12) 0.59 ppb (7) N/A 21.4 μg/m3 (70) 70.0
 
Sept. 23, 2020, 2 p.m. 42.8 ppb (40) 15.9 ppb (15) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 0.66 ppb (7) N/A 12.1 μg/m3 (50) 50.0
 
Sept. 23, 2020, 1 p.m. 26.9 ppb (25) 6.6 ppb (6) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (3) 0.45 ppb (5) N/A 9.9 μg/m3 (41) 41.0
 
Sept. 23, 2020, noon 12.5 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 10.0 ppb (8) 0.33 ppb (4) N/A 11.1 μg/m3 (46) 46.0
 
Sept. 23, 2020, 11 a.m. 12.3 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.29 ppb (3) N/A 10.8 μg/m3 (45) 45.0
 
Sept. 23, 2020, 10 a.m. 16.3 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) 0.29 ppb (3) N/A 8.9 μg/m3 (37) 37.0
 
Sept. 23, 2020, 9 a.m. 9.7 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.28 ppb (3) N/A 10.6 μg/m3 (44) 44.0
 
Sept. 23, 2020, 8 a.m. 9.8 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.28 ppb (3) N/A 10.4 μg/m3 (43) 43.0
 
Sept. 23, 2020, 7 a.m. 13.8 ppb (13) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) 0.34 ppb (4) N/A 4.9 μg/m3 (20) 20.0
 
Sept. 23, 2020, 6 a.m. 16.0 ppb (15) 0.3 ppb (0) N/A 16.0 ppb (15) N/A N/A 14.0 ppb (11) 0.36 ppb (4) N/A 4.5 μg/m3 (19) 19.0
 
Sept. 23, 2020, 5 a.m. 18.7 ppb (17) 0.4 ppb (0) N/A 18.0 ppb (17) N/A N/A 17.0 ppb (13) 0.37 ppb (4) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 23, 2020, 4 a.m. 12.6 ppb (12) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 32.0 ppb (25) 0.31 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
Sept. 23, 2020, 3 a.m. 9.3 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 47.0 ppb (36) 0.27 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
Sept. 23, 2020, 2 a.m. 12.3 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 44.0 ppb (34) 0.35 ppb (4) N/A 7.4 μg/m3 (31) 34.0
 
Sept. 23, 2020, 1 a.m. 9.1 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 39.0 ppb (30) 0.26 ppb (3) N/A 2.5 μg/m3 (10) 30.0
 
Sept. 23, 2020, midnight 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 44.0 ppb (34) 0.25 ppb (3) N/A -0.3 μg/m3 (0) 34.0
 
Sept. 22, 2020, 11 p.m. 6.4 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) 0.26 ppb (3) N/A 1.1 μg/m3 (5) 35.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (28) 28.0