ID: 972

AQSQID: 060376012

Site Name: Santa Clarita

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

Updated: July 15, 2020, 4:36 a.m.

Location: Newhall (Newhall), CA

Reporting: True, Located: True

Current AQI: 58.0

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
July 15, 2020, 3 a.m. 10.0 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 49.0 ppb (38) 0.13 ppb (1) N/A 15.7 μg/m3 (58) 58.0
 
July 15, 2020, 2 a.m. 8.2 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 58.0 ppb (45) 0.11 ppb (1) N/A 14.8 μg/m3 (56) 56.0
 
July 15, 2020, 1 a.m. 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 62.0 ppb (48) 0.12 ppb (1) N/A 14.8 μg/m3 (56) 56.0
 
July 15, 2020, midnight 6.1 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 63.0 ppb (48) 0.11 ppb (1) N/A 19.4 μg/m3 (66) 66.0
 
July 14, 2020, 11 p.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 66.0 ppb (51) 0.1 ppb (1) N/A 11.1 μg/m3 (46) 51.0
 
July 14, 2020, 10 p.m. 6.4 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 71.0 ppb (55) 0.11 ppb (1) N/A 11.4 μg/m3 (48) 55.0
 
July 14, 2020, 9 p.m. 7.4 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 78.0 ppb (61) 0.14 ppb (2) N/A 19.4 μg/m3 (66) 66.0
 
July 14, 2020, 8 p.m. 9.2 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 73.0 ppb (57) 0.17 ppb (2) N/A 18.9 μg/m3 (65) 65.0
 
July 14, 2020, 7 p.m. 9.4 ppb (9) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 64.0 ppb (49) 0.16 ppb (2) N/A 13.6 μg/m3 (53) 53.0
 
July 14, 2020, 6 p.m. 11.5 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (8) N/A N/A 52.0 ppb (40) 0.16 ppb (2) N/A 21.4 μg/m3 (70) 70.0
 
July 14, 2020, 5 p.m. 14.5 ppb (13) 3.6 ppb (3) N/A 11.0 ppb (10) N/A N/A 41.0 ppb (32) 0.17 ppb (2) N/A 16.9 μg/m3 (60) 60.0
 
July 14, 2020, 4 p.m. 16.6 ppb (15) 4.7 ppb (4) N/A 12.0 ppb (11) N/A N/A 33.0 ppb (25) 0.2 ppb (2) N/A 18.7 μg/m3 (64) 64.0
 
July 14, 2020, 3 p.m. 19.3 ppb (18) 6.1 ppb (6) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.24 ppb (3) N/A 20.9 μg/m3 (69) 69.0
 
July 14, 2020, 2 p.m. 19.9 ppb (18) 7.1 ppb (7) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) 0.29 ppb (3) N/A 13.3 μg/m3 (53) 53.0
 
July 14, 2020, 1 p.m. 20.3 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (13) N/A N/A 10.0 ppb (8) 0.18 ppb (2) N/A 14.1 μg/m3 (54) 54.0
 
July 14, 2020, noon 10.8 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.12 ppb (1) N/A 14.3 μg/m3 (55) 55.0
 
July 14, 2020, 11 a.m. 8.5 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) 0.11 ppb (1) N/A 17.2 μg/m3 (61) 61.0
 
July 14, 2020, 10 a.m. 8.6 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.13 ppb (1) N/A 20.8 μg/m3 (69) 69.0
 
July 14, 2020, 9 a.m. 8.3 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.11 ppb (1) N/A 19.9 μg/m3 (67) 67.0
 
July 14, 2020, 8 a.m. 7.4 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.11 ppb (1) N/A 13.3 μg/m3 (53) 53.0
 
July 14, 2020, 7 a.m. 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) 0.08 ppb (1) N/A 15.7 μg/m3 (58) 58.0
 
July 14, 2020, 6 a.m. 14.4 ppb (13) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 34.0 ppb (26) 0.13 ppb (1) N/A 12.6 μg/m3 (51) 51.0
 
July 14, 2020, 5 a.m. 11.8 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 39.0 ppb (30) 0.15 ppb (2) N/A 17.9 μg/m3 (63) 63.0
 
July 14, 2020, 4 a.m. 11.7 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 43.0 ppb (33) 0.16 ppb (2) N/A 23.3 μg/m3 (74) 74.0
 
July 14, 2020, 3 a.m. 10.4 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 49.0 ppb (38) 0.16 ppb (2) N/A 21.9 μg/m3 (71) 71.0
 
July 14, 2020, 2 a.m. 9.0 ppb (8) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 59.0 ppb (45) 0.15 ppb (2) N/A 18.2 μg/m3 (63) 63.0
 
July 14, 2020, 1 a.m. 6.8 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 70.0 ppb (54) 0.13 ppb (1) N/A 17.7 μg/m3 (62) 62.0
 
July 14, 2020, midnight 7.3 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 66.0 ppb (51) 0.12 ppb (1) N/A 10.6 μg/m3 (44) 51.0
 
July 13, 2020, 11 p.m. 5.4 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 68.0 ppb (52) 0.11 ppb (1) N/A 11.4 μg/m3 (48) 52.0
 
July 13, 2020, 10 p.m. 7.0 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 75.0 ppb (58) 0.12 ppb (1) N/A 10.6 μg/m3 (44) 58.0
 
July 13, 2020, 9 p.m. 7.7 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 87.0 ppb (68) 0.15 ppb (2) N/A 23.1 μg/m3 (74) 74.0
 
July 13, 2020, 8 p.m. 8.5 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 89.0 ppb (70) 0.19 ppb (2) N/A 14.3 μg/m3 (55) 70.0
 
July 13, 2020, 7 p.m. 11.8 ppb (11) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A 79.0 ppb (62) 0.23 ppb (3) N/A 22.6 μg/m3 (73) 73.0
 
July 13, 2020, 6 p.m. 12.4 ppb (11) 1.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 65.0 ppb (50) 0.22 ppb (2) N/A 25.7 μg/m3 (79) 79.0
 
July 13, 2020, 5 p.m. 10.8 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 58.0 ppb (45) 0.2 ppb (2) N/A 9.9 μg/m3 (41) 45.0
 
July 13, 2020, 4 p.m. 12.2 ppb (11) 2.1 ppb (2) N/A 10.0 ppb (9) N/A N/A 49.0 ppb (38) 0.2 ppb (2) N/A 10.1 μg/m3 (42) 42.0
 
July 13, 2020, 3 p.m. 15.6 ppb (14) 3.2 ppb (3) N/A 12.0 ppb (11) N/A N/A 38.0 ppb (29) 0.25 ppb (3) N/A 19.7 μg/m3 (66) 66.0
 
July 13, 2020, 2 p.m. 24.5 ppb (23) 8.6 ppb (8) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) 0.33 ppb (4) N/A 20.4 μg/m3 (68) 68.0
 
July 13, 2020, 1 p.m. 20.2 ppb (19) 3.7 ppb (3) N/A 17.0 ppb (16) N/A N/A 16.0 ppb (12) 0.33 ppb (4) N/A 13.6 μg/m3 (53) 53.0
 
July 13, 2020, noon 15.9 ppb (15) 0.3 ppb (0) N/A 16.0 ppb (15) N/A N/A 19.0 ppb (15) 0.26 ppb (3) N/A 19.7 μg/m3 (66) 66.0
 
July 13, 2020, 11 a.m. 12.3 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.21 ppb (2) N/A 12.3 μg/m3 (51) 51.0
 
July 13, 2020, 10 a.m. 11.3 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 29.0 ppb (22) 0.2 ppb (2) N/A 10.1 μg/m3 (42) 42.0
 
July 13, 2020, 9 a.m. 9.0 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.18 ppb (2) N/A 15.2 μg/m3 (57) 57.0
 
July 13, 2020, 8 a.m. 7.7 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) 0.16 ppb (2) N/A 12.4 μg/m3 (51) 51.0
 
July 13, 2020, 7 a.m. 5.0 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) 0.12 ppb (1) N/A 11.8 μg/m3 (49) 49.0
 
July 13, 2020, 6 a.m. 6.3 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (37) 0.15 ppb (2) N/A 11.4 μg/m3 (48) 48.0
 
July 13, 2020, 5 a.m. 11.6 ppb (11) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 43.0 ppb (33) 0.25 ppb (3) N/A 12.6 μg/m3 (51) 51.0
 
July 13, 2020, 4 a.m. 8.0 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) 0.22 ppb (2) N/A 7.9 μg/m3 (33) 37.0
 
July 13, 2020, 3 a.m. 6.3 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (38) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 38.0
 
July 13, 2020, 2 a.m. 6.0 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 64.0 ppb (49) 0.17 ppb (2) N/A 8.6 μg/m3 (36) 49.0
 
July 13, 2020, 1 a.m. 5.0 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 78.0 ppb (61) 0.18 ppb (2) N/A 8.7 μg/m3 (36) 61.0
 
July 13, 2020, midnight 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 80.0 ppb (62) 0.17 ppb (2) N/A 9.9 μg/m3 (41) 62.0
 
July 12, 2020, 11 p.m. 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 91.0 ppb (72) 0.2 ppb (2) N/A 11.6 μg/m3 (48) 72.0
 
July 12, 2020, 10 p.m. 4.8 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 101.0 ppb (80) 0.23 ppb (3) N/A 18.9 μg/m3 (65) 80.0
 
July 12, 2020, 9 p.m. 4.7 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 95.0 ppb (75) 0.22 ppb (2) N/A 10.1 μg/m3 (42) 75.0
 
July 12, 2020, 8 p.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 89.0 ppb (70) 0.21 ppb (2) N/A 8.9 μg/m3 (37) 70.0
 
July 12, 2020, 7 p.m. 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 83.0 ppb (65) 0.2 ppb (2) N/A 7.2 μg/m3 (30) 65.0
 
July 12, 2020, 6 p.m. 4.6 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (57) 0.18 ppb (2) N/A 8.4 μg/m3 (35) 57.0
 
July 12, 2020, 5 p.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 69.0 ppb (53) 0.19 ppb (2) N/A 8.6 μg/m3 (36) 53.0
 
July 12, 2020, 4 p.m. 10.1 ppb (9) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 51.0 ppb (39) 0.27 ppb (3) N/A 8.1 μg/m3 (34) 39.0
 
July 12, 2020, 3 p.m. 11.1 ppb (10) 2.2 ppb (2) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) 0.26 ppb (3) N/A 8.4 μg/m3 (35) 35.0
 
July 12, 2020, 2 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.27 ppb (3) N/A 14.8 μg/m3 (56) 56.0
 
July 12, 2020, 1 p.m. 9.6 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.25 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
July 12, 2020, noon 7.3 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.22 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
July 12, 2020, 11 a.m. 11.6 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.29 ppb (3) N/A 16.9 μg/m3 (60) 60.0
 
July 12, 2020, 10 a.m. 8.5 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) 0.28 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
July 12, 2020, 9 a.m. 8.5 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.28 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
July 12, 2020, 8 a.m. 8.1 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.28 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
July 12, 2020, 7 a.m. 9.0 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.27 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
July 12, 2020, 6 a.m. 11.1 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) 0.33 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
July 12, 2020, 5 a.m. 8.5 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 31.0 ppb (24) 0.26 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
July 12, 2020, 4 a.m. 8.6 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.28 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
July 12, 2020, 3 a.m. 4.4 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (40) 0.19 ppb (2) N/A 4.5 μg/m3 (19) 40.0
 
July 12, 2020, 2 a.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) 0.16 ppb (2) N/A -0.3 μg/m3 (0) 43.0
 
July 12, 2020, 1 a.m. 2.8 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 38.0
 
July 12, 2020, midnight 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.14 ppb (2) N/A 6.4 μg/m3 (27) 38.0
 
July 11, 2020, 11 p.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 64.0 ppb (49) 0.18 ppb (2) N/A 4.2 μg/m3 (18) 49.0
 
July 11, 2020, 10 p.m. 3.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 74.0 ppb (57) 0.21 ppb (2) N/A 3.7 μg/m3 (15) 57.0
 
July 11, 2020, 9 p.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 73.0 ppb (57) 0.21 ppb (2) N/A -0.5 μg/m3 (0) 57.0
 
July 11, 2020, 8 p.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 69.0 ppb (53) 0.18 ppb (2) N/A 0.0 μg/m3 (0) 53.0
 
July 11, 2020, 7 p.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 70.0 ppb (54) 0.18 ppb (2) N/A 3.3 μg/m3 (14) 54.0
 
July 11, 2020, 6 p.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 77.0 ppb (60) 0.22 ppb (2) N/A 4.7 μg/m3 (20) 60.0
 
July 11, 2020, 5 p.m. 7.9 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 69.0 ppb (53) 0.25 ppb (3) N/A 8.4 μg/m3 (35) 53.0
 
July 11, 2020, 4 p.m. 13.7 ppb (13) 2.3 ppb (2) N/A 12.0 ppb (11) N/A N/A 51.0 ppb (39) 0.33 ppb (4) N/A 10.9 μg/m3 (45) 45.0
 
July 11, 2020, 3 p.m. 18.5 ppb (17) 3.6 ppb (3) N/A 15.0 ppb (14) N/A N/A 39.0 ppb (30) 0.37 ppb (4) N/A 8.4 μg/m3 (35) 35.0
 
July 11, 2020, 2 p.m. 24.1 ppb (22) 5.8 ppb (5) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (19) 0.5 ppb (6) N/A 8.6 μg/m3 (36) 36.0
 
July 11, 2020, 1 p.m. 18.2 ppb (17) 1.3 ppb (1) N/A 17.0 ppb (16) N/A N/A 19.0 ppb (15) 0.38 ppb (4) N/A 12.5 μg/m3 (51) 51.0
 
July 11, 2020, noon 12.2 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 0.28 ppb (3) N/A 12.1 μg/m3 (50) 50.0
 
July 11, 2020, 11 a.m. 13.9 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) 0.26 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
July 11, 2020, 10 a.m. 17.4 ppb (16) 0.7 ppb (1) N/A 17.0 ppb (16) N/A N/A 23.0 ppb (18) 0.27 ppb (3) N/A 8.9 μg/m3 (37) 37.0
 
July 11, 2020, 9 a.m. 11.1 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) 0.3 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
July 11, 2020, 8 a.m. 12.7 ppb (12) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) 0.37 ppb (4) N/A 12.4 μg/m3 (51) 51.0
 
July 11, 2020, 7 a.m. 14.7 ppb (14) 0.1 ppb (0) N/A 15.0 ppb (14) N/A N/A 26.0 ppb (20) 0.37 ppb (4) N/A 14.1 μg/m3 (54) 54.0
 
July 11, 2020, 6 a.m. 15.8 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A N/A 26.0 ppb (20) 0.38 ppb (4) N/A 13.6 μg/m3 (53) 53.0
 
July 11, 2020, 5 a.m. 10.4 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) 0.24 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
July 11, 2020, 4 a.m. 9.0 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 47.0 ppb (36) 0.23 ppb (3) N/A 12.3 μg/m3 (51) 51.0
 
July 11, 2020, 3 a.m. 10.0 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 58.0 ppb (45) 0.26 ppb (3) N/A 8.4 μg/m3 (35) 45.0
 
July 11, 2020, 2 a.m. 11.8 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 66.0 ppb (51) 0.25 ppb (3) N/A 3.2 μg/m3 (13) 51.0
 
July 11, 2020, 1 a.m. 5.4 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 72.0 ppb (56) 0.21 ppb (2) N/A 0.1 μg/m3 (0) 56.0
 
July 11, 2020, midnight 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 77.0 ppb (60) 0.19 ppb (2) N/A 4.2 μg/m3 (18) 60.0
 
July 10, 2020, 11 p.m. 5.6 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 84.0 ppb (66) 0.19 ppb (2) N/A 5.7 μg/m3 (24) 66.0
 
July 10, 2020, 10 p.m. 5.0 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 82.0 ppb (64) 0.17 ppb (2) N/A 6.4 μg/m3 (27) 64.0
 
July 10, 2020, 9 p.m. 5.9 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 84.0 ppb (66) 0.17 ppb (2) N/A 10.4 μg/m3 (43) 66.0
 
July 10, 2020, 8 p.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 96.0 ppb (76) 0.21 ppb (2) N/A N/A 76.0
 
July 10, 2020, 7 p.m. 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 89.0 ppb (70) 0.2 ppb (2) N/A N/A 70.0
 
July 10, 2020, 6 p.m. 6.5 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 80.0 ppb (62) 0.2 ppb (2) N/A N/A 62.0
 
July 10, 2020, 5 p.m. 10.6 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 73.0 ppb (57) 0.24 ppb (3) N/A 17.2 μg/m3 (61) 61.0
 
July 10, 2020, 4 p.m. 15.3 ppb (14) 2.4 ppb (2) N/A 13.0 ppb (12) N/A N/A 55.0 ppb (42) 0.28 ppb (3) N/A 9.8 μg/m3 (41) 42.0
 
July 10, 2020, 3 p.m. 19.2 ppb (18) 4.2 ppb (4) N/A 15.0 ppb (14) N/A N/A 41.0 ppb (32) 0.3 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
July 10, 2020, 2 p.m. 44.4 ppb (41) 14.6 ppb (14) N/A 30.0 ppb (28) N/A N/A 16.0 ppb (12) 0.52 ppb (6) N/A 12.4 μg/m3 (51) 51.0
 
July 10, 2020, 1 p.m. 27.0 ppb (25) 3.7 ppb (3) N/A 23.0 ppb (21) N/A N/A 14.0 ppb (11) 0.38 ppb (4) N/A 12.8 μg/m3 (52) 52.0
 
July 10, 2020, noon 13.1 ppb (12) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.28 ppb (3) N/A 11.6 μg/m3 (48) 48.0
 
July 10, 2020, 11 a.m. 12.8 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.21 ppb (2) N/A 11.6 μg/m3 (48) 48.0
 
July 10, 2020, 10 a.m. 9.1 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) 0.21 ppb (2) N/A 8.1 μg/m3 (34) 34.0
 
July 10, 2020, 9 a.m. 8.1 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.2 ppb (2) N/A 4.9 μg/m3 (20) 25.0
 
July 10, 2020, 8 a.m. 11.6 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) 0.21 ppb (2) N/A 19.9 μg/m3 (67) 67.0
 
July 10, 2020, 7 a.m. 15.5 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A N/A 29.0 ppb (22) 0.3 ppb (3) N/A 10.6 μg/m3 (44) 44.0
 
July 10, 2020, 6 a.m. 14.8 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A N/A 29.0 ppb (22) 0.33 ppb (4) N/A 14.3 μg/m3 (55) 55.0
 
July 10, 2020, 5 a.m. 13.0 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) 0.26 ppb (3) N/A 15.2 μg/m3 (57) 57.0
 
July 10, 2020, 4 a.m. 6.5 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) 0.12 ppb (1) N/A 15.2 μg/m3 (57) 57.0
 
July 10, 2020, 3 a.m. 7.7 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 51.0 ppb (39) 0.17 ppb (2) N/A 9.6 μg/m3 (40) 40.0
 
July 10, 2020, 2 a.m. 11.3 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 64.0 ppb (49) 0.16 ppb (2) N/A 6.2 μg/m3 (26) 49.0
 
July 10, 2020, 1 a.m. 6.5 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 72.0 ppb (56) 0.15 ppb (2) N/A 8.6 μg/m3 (36) 56.0
 
July 10, 2020, midnight 5.9 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 78.0 ppb (61) 0.15 ppb (2) N/A 11.1 μg/m3 (46) 61.0
 
July 9, 2020, 11 p.m. 6.4 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 86.0 ppb (68) 0.17 ppb (2) N/A 12.6 μg/m3 (51) 68.0
 
July 9, 2020, 10 p.m. 6.5 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 90.0 ppb (71) 0.18 ppb (2) N/A 10.1 μg/m3 (42) 71.0
 
July 9, 2020, 9 p.m. 6.5 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 93.0 ppb (73) 0.19 ppb (2) N/A 6.4 μg/m3 (27) 73.0
 
July 9, 2020, 8 p.m. 8.1 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 87.0 ppb (68) 0.2 ppb (2) N/A 21.1 μg/m3 (69) 69.0
 
July 9, 2020, 7 p.m. 11.4 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 76.0 ppb (59) 0.21 ppb (2) N/A 15.7 μg/m3 (58) 59.0
 
July 9, 2020, 6 p.m. 10.2 ppb (9) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 67.0 ppb (52) 0.2 ppb (2) N/A 12.4 μg/m3 (51) 52.0
 
July 9, 2020, 5 p.m. 13.0 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (10) N/A N/A 57.0 ppb (44) 0.22 ppb (2) N/A 15.7 μg/m3 (58) 58.0
 
July 9, 2020, 4 p.m. 12.1 ppb (11) 2.1 ppb (2) N/A 10.0 ppb (9) N/A N/A 51.0 ppb (39) 0.22 ppb (2) N/A 12.1 μg/m3 (50) 50.0
 
July 9, 2020, 3 p.m. 14.8 ppb (14) 3.2 ppb (3) N/A 12.0 ppb (11) N/A N/A 38.0 ppb (29) 0.24 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
July 9, 2020, 2 p.m. 36.9 ppb (34) 15.4 ppb (14) N/A 22.0 ppb (20) N/A N/A 16.0 ppb (12) 0.43 ppb (5) N/A 23.8 μg/m3 (75) 75.0
 
July 9, 2020, 1 p.m. 24.2 ppb (22) 5.3 ppb (5) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.32 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
July 9, 2020, noon 14.4 ppb (13) 1.8 ppb (2) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) 0.27 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
July 9, 2020, 11 a.m. 9.4 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) 0.19 ppb (2) N/A 13.8 μg/m3 (54) 54.0
 
July 9, 2020, 10 a.m. 11.3 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.21 ppb (2) N/A 17.2 μg/m3 (61) 61.0
 
July 9, 2020, 9 a.m. 10.2 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) 0.2 ppb (2) N/A 15.7 μg/m3 (58) 58.0
 
July 9, 2020, 8 a.m. 13.5 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.24 ppb (3) N/A 16.2 μg/m3 (59) 59.0
 
July 9, 2020, 7 a.m. 12.4 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 28.0 ppb (22) 0.24 ppb (3) N/A 14.3 μg/m3 (55) 55.0
 
July 9, 2020, 6 a.m. 12.6 ppb (12) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 28.0 ppb (22) 0.29 ppb (3) N/A 14.3 μg/m3 (55) 55.0
 
July 9, 2020, 5 a.m. 9.1 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.16 ppb (2) N/A 20.4 μg/m3 (68) 68.0
 
July 9, 2020, 4 a.m. 10.4 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 48.0 ppb (37) 0.17 ppb (2) N/A 11.6 μg/m3 (48) 48.0
 
July 9, 2020, 3 a.m. 9.2 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 56.0 ppb (43) 0.18 ppb (2) N/A 9.9 μg/m3 (41) 43.0
 
July 9, 2020, 2 a.m. 6.2 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 64.0 ppb (49) 0.15 ppb (2) N/A 9.6 μg/m3 (40) 49.0
 
July 9, 2020, 1 a.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (52) 0.15 ppb (2) N/A 10.9 μg/m3 (45) 52.0
 
July 9, 2020, midnight 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 70.0 ppb (54) 0.16 ppb (2) N/A 11.8 μg/m3 (49) 54.0
 
July 8, 2020, 11 p.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 71.0 ppb (55) 0.17 ppb (2) N/A 10.6 μg/m3 (44) 55.0
 
July 8, 2020, 10 p.m. 4.0 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 71.0 ppb (55) 0.18 ppb (2) N/A 11.1 μg/m3 (46) 55.0
 
July 8, 2020, 9 p.m. 5.2 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 73.0 ppb (57) 0.22 ppb (2) N/A 9.9 μg/m3 (41) 57.0
 
July 8, 2020, 8 p.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 77.0 ppb (60) 0.25 ppb (3) N/A 8.9 μg/m3 (37) 60.0
 
July 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.2 μg/m3 (59) 59.0
 
July 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.7 μg/m3 (64) 64.0
 
July 8, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
July 8, 2020, 4 p.m. 21.2 ppb (20) 4.9 ppb (5) N/A 16.0 ppb (15) N/A N/A 42.0 ppb (32) 0.26 ppb (3) N/A 16.7 μg/m3 (60) 60.0
 
July 8, 2020, 3 p.m. 20.0 ppb (19) 4.6 ppb (4) N/A 15.0 ppb (14) N/A N/A 36.0 ppb (28) 0.28 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
July 8, 2020, 2 p.m. 32.5 ppb (30) 10.9 ppb (10) N/A 22.0 ppb (20) N/A N/A 18.0 ppb (14) 0.36 ppb (4) N/A 16.5 μg/m3 (60) 60.0
 
July 8, 2020, 1 p.m. 16.7 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A N/A 16.0 ppb (12) 0.29 ppb (3) N/A 17.1 μg/m3 (61) 61.0
 
July 8, 2020, noon 9.6 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.25 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
July 8, 2020, 11 a.m. 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.19 ppb (2) N/A 17.2 μg/m3 (61) 61.0
 
July 8, 2020, 10 a.m. 7.4 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 36.0 ppb (28) 0.17 ppb (2) N/A 19.7 μg/m3 (66) 66.0
 
July 8, 2020, 9 a.m. 10.3 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.22 ppb (2) N/A 18.2 μg/m3 (63) 63.0
 
July 8, 2020, 8 a.m. 12.2 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 27.0 ppb (21) 0.25 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
July 8, 2020, 7 a.m. 13.2 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.24 ppb (3) N/A 12.1 μg/m3 (50) 50.0
 
July 8, 2020, 6 a.m. 11.4 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) 0.24 ppb (3) N/A 12.1 μg/m3 (50) 50.0
 
July 8, 2020, 5 a.m. 5.5 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.11 ppb (1) N/A 15.2 μg/m3 (57) 57.0
 
July 8, 2020, 4 a.m. 5.4 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) 0.11 ppb (1) N/A 17.4 μg/m3 (61) 61.0