ID: 972

AQSQID: 060376012

Site Name: Santa Clarita

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

Updated: May 28, 2022, 1:27 p.m.

Location: Newhall (Newhall), CA

Reporting: True, Located: True

Current AQI: 44.0

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
May 28, 2022, 11 a.m. 10.1 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 16.0 ppb (15) 0.17 ppb (3) N/A 10.4 μg/m3 (44) 44.0
 
May 28, 2022, 11 a.m. 10.1 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 16.0 ppb (15) 0.17 ppb (3) N/A 10.4 μg/m3 (44) 44.0
 
May 28, 2022, 10 a.m. 9.8 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 11.0 ppb (11) 0.18 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
May 28, 2022, 10 a.m. 9.8 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 11.0 ppb (11) 0.18 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
May 28, 2022, 9 a.m. 11.2 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 8.0 ppb (8) 0.19 ppb (3) N/A 10.2 μg/m3 (43) 43.0
 
May 28, 2022, 9 a.m. 11.2 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 8.0 ppb (8) 0.19 ppb (3) N/A 10.2 μg/m3 (43) 43.0
 
May 28, 2022, 8 a.m. 16.7 ppb (16) 1.5 ppb (2) N/A 15.0 ppb (15) N/A N/A 6.0 ppb (6) 0.25 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
May 28, 2022, 8 a.m. 16.7 ppb (16) 1.5 ppb (2) N/A 15.0 ppb (15) N/A N/A 6.0 ppb (6) 0.25 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
May 28, 2022, 7 a.m. 4.3 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.06 ppb (2) N/A 7.7 μg/m3 (33) 33.0
 
May 28, 2022, 7 a.m. 4.3 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.06 ppb (2) N/A 7.7 μg/m3 (33) 33.0
 
May 28, 2022, 6 a.m. 5.1 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.08 ppb (2) N/A 7.2 μg/m3 (31) 31.0
 
May 28, 2022, 6 a.m. 5.1 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.08 ppb (2) N/A 7.2 μg/m3 (31) 31.0
 
May 28, 2022, 5 a.m. 5.6 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.06 ppb (2) N/A 7.2 μg/m3 (31) 31.0
 
May 28, 2022, 5 a.m. 5.6 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.06 ppb (2) N/A 7.2 μg/m3 (31) 31.0
 
May 28, 2022, 3 a.m. 10.7 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A 35.0 ppb (33) 0.14 ppb (2) N/A 8.9 μg/m3 (38) 38.0
 
May 27, 2022, 7 p.m. 8.3 ppb (8) 1.6 ppb (2) N/A 7.0 ppb (7) N/A N/A 49.0 ppb (46) 0.14 ppb (2) N/A 15.8 μg/m3 (59) 59.0
 
May 27, 2022, 7 p.m. 8.3 ppb (8) 1.6 ppb (2) N/A 7.0 ppb (7) N/A N/A 49.0 ppb (46) 0.14 ppb (2) N/A 15.8 μg/m3 (59) 59.0
 
May 27, 2022, 6 p.m. 9.4 ppb (9) 2.2 ppb (3) N/A 7.0 ppb (7) N/A N/A 41.0 ppb (38) 0.14 ppb (2) N/A 11.1 μg/m3 (47) 47.0
 
May 27, 2022, 5 p.m. 9.7 ppb (10) 2.7 ppb (3) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.14 ppb (2) N/A 12.6 μg/m3 (53) 53.0
 
May 27, 2022, 5 p.m. 9.7 ppb (10) 2.7 ppb (3) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.14 ppb (2) N/A 12.6 μg/m3 (53) 53.0
 
May 27, 2022, 4 p.m. 14.0 ppb (14) 4.9 ppb (5) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) 0.14 ppb (2) N/A 12.4 μg/m3 (52) 52.0
 
May 27, 2022, 3 p.m. 15.8 ppb (15) 4.4 ppb (5) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) 0.17 ppb (3) N/A 19.5 μg/m3 (67) 67.0
 
May 27, 2022, 3 p.m. 15.8 ppb (15) 4.4 ppb (5) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) 0.17 ppb (3) N/A 19.5 μg/m3 (67) 67.0
 
May 27, 2022, 2 p.m. 10.4 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) 0.18 ppb (3) N/A 18.5 μg/m3 (65) 65.0
 
May 27, 2022, 5 a.m. 11.8 ppb (12) 0.4 ppb (1) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) 0.13 ppb (2) N/A 11.8 μg/m3 (50) 50.0
 
May 27, 2022, 4 a.m. 6.5 ppb (7) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.07 ppb (2) N/A 15.3 μg/m3 (58) 58.0
 
May 27, 2022, 3 a.m. 9.2 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 39.0 ppb (37) 0.1 ppb (2) N/A 8.4 μg/m3 (36) 37.0
 
May 27, 2022, 2 a.m. 8.3 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 46.0 ppb (43) 0.11 ppb (2) N/A 4.6 μg/m3 (20) 43.0
 
May 27, 2022, 1 a.m. 6.5 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (51) 0.1 ppb (2) N/A 16.5 μg/m3 (61) 61.0
 
May 27, 2022, midnight 6.4 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 56.0 ppb (55) 0.11 ppb (2) N/A 12.3 μg/m3 (52) 55.0
 
May 26, 2022, 11 p.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 60.0 ppb (68) 0.08 ppb (2) N/A 12.8 μg/m3 (53) 68.0
 
May 26, 2022, 10 p.m. 6.5 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 70.0 ppb (100) 0.11 ppb (2) N/A 12.6 μg/m3 (53) 100.0
 
May 26, 2022, 9 p.m. 5.6 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 75.0 ppb (104) 0.12 ppb (2) N/A 17.2 μg/m3 (62) 104.0
 
May 26, 2022, 8 p.m. 8.8 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 80.0 ppb (106) 0.18 ppb (3) N/A 19.3 μg/m3 (67) 106.0
 
May 26, 2022, 8 p.m. 8.8 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 80.0 ppb (106) 0.18 ppb (3) N/A 19.3 μg/m3 (67) 106.0
 
May 26, 2022, 7 p.m. 9.6 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 73.0 ppb (103) 0.2 ppb (3) N/A 15.6 μg/m3 (59) 103.0
 
May 26, 2022, 7 p.m. 9.6 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 73.0 ppb (103) 0.2 ppb (3) N/A 15.6 μg/m3 (59) 103.0
 
May 26, 2022, 6 p.m. 10.5 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A 67.0 ppb (91) 0.2 ppb (3) N/A 16.5 μg/m3 (61) 91.0
 
May 26, 2022, 6 p.m. 10.5 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A 67.0 ppb (91) 0.2 ppb (3) N/A 16.5 μg/m3 (61) 91.0
 
May 26, 2022, 5 p.m. 18.3 ppb (18) 3.7 ppb (4) N/A 15.0 ppb (15) N/A N/A 49.0 ppb (46) 0.25 ppb (3) N/A 17.3 μg/m3 (62) 62.0
 
May 26, 2022, 5 p.m. 18.3 ppb (18) 3.7 ppb (4) N/A 15.0 ppb (15) N/A N/A 49.0 ppb (46) 0.25 ppb (3) N/A 17.3 μg/m3 (62) 62.0
 
May 26, 2022, 4 p.m. 14.0 ppb (14) 2.6 ppb (3) N/A 11.0 ppb (11) N/A N/A 46.0 ppb (43) 0.22 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
May 26, 2022, 4 p.m. 14.0 ppb (14) 2.6 ppb (3) N/A 11.0 ppb (11) N/A N/A 46.0 ppb (43) 0.22 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
May 26, 2022, 3 p.m. 20.2 ppb (20) 6.7 ppb (7) N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) 0.28 ppb (4) N/A 14.6 μg/m3 (57) 57.0
 
May 26, 2022, 2 p.m. 18.7 ppb (18) 7.1 ppb (7) N/A 12.0 ppb (12) N/A N/A 11.0 ppb (11) 0.24 ppb (3) N/A 12.9 μg/m3 (53) 53.0
 
May 26, 2022, 2 p.m. 18.7 ppb (18) 7.1 ppb (7) N/A 12.0 ppb (12) N/A N/A 11.0 ppb (11) 0.24 ppb (3) N/A 12.9 μg/m3 (53) 53.0
 
May 26, 2022, 5 a.m. 12.9 ppb (13) 0.3 ppb (1) N/A 13.0 ppb (13) N/A N/A 40.0 ppb (38) 0.18 ppb (3) N/A 14.8 μg/m3 (57) 57.0
 
May 26, 2022, 4 a.m. 13.2 ppb (13) 0.2 ppb (1) N/A 13.0 ppb (13) N/A N/A 48.0 ppb (45) 0.19 ppb (3) N/A 11.1 μg/m3 (47) 47.0
 
May 26, 2022, 1 a.m. 11.2 ppb (11) 0.4 ppb (1) N/A 11.0 ppb (11) N/A N/A 84.0 ppb (108) 0.22 ppb (3) N/A 19.3 μg/m3 (67) 108.0
 
May 26, 2022, midnight 10.9 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 103.0 ppb (118) 0.25 ppb (3) N/A 24.6 μg/m3 (78) 118.0
 
May 25, 2022, 11 p.m. 11.8 ppb (12) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 113.0 ppb (124) 0.31 ppb (4) N/A 23.1 μg/m3 (75) 124.0
 
May 25, 2022, 10 p.m. 11.1 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 116.0 ppb (125) 0.29 ppb (4) N/A 22.9 μg/m3 (74) 125.0
 
May 25, 2022, 10 p.m. 11.1 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 116.0 ppb (125) 0.29 ppb (4) N/A 22.9 μg/m3 (74) 125.0
 
May 25, 2022, 9 p.m. 10.0 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 109.0 ppb (122) 0.27 ppb (4) N/A 20.4 μg/m3 (69) 122.0
 
May 25, 2022, 8 p.m. 10.3 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 95.0 ppb (114) 0.26 ppb (4) N/A 18.5 μg/m3 (65) 114.0
 
May 25, 2022, 8 p.m. 10.3 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 95.0 ppb (114) 0.26 ppb (4) N/A 18.5 μg/m3 (65) 114.0
 
May 25, 2022, 7 p.m. 11.9 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 87.0 ppb (110) 0.3 ppb (4) N/A 18.3 μg/m3 (65) 110.0
 
May 25, 2022, 7 p.m. 11.9 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 87.0 ppb (110) 0.3 ppb (4) N/A 18.3 μg/m3 (65) 110.0
 
May 25, 2022, 6 p.m. 13.1 ppb (13) 1.6 ppb (2) N/A 11.0 ppb (11) N/A N/A 76.0 ppb (104) 0.27 ppb (4) N/A 18.5 μg/m3 (65) 104.0
 
May 25, 2022, 6 p.m. 13.1 ppb (13) 1.6 ppb (2) N/A 11.0 ppb (11) N/A N/A 76.0 ppb (104) 0.27 ppb (4) N/A 18.5 μg/m3 (65) 104.0
 
May 25, 2022, 5 p.m. 12.8 ppb (13) 1.8 ppb (2) N/A 11.0 ppb (11) N/A N/A 61.0 ppb (71) 0.23 ppb (3) N/A 10.9 μg/m3 (46) 71.0
 
May 25, 2022, 5 p.m. 12.8 ppb (13) 1.8 ppb (2) N/A 11.0 ppb (11) N/A N/A 61.0 ppb (71) 0.23 ppb (3) N/A 10.9 μg/m3 (46) 71.0
 
May 25, 2022, 4 p.m. 12.9 ppb (13) 2.3 ppb (3) N/A 11.0 ppb (11) N/A N/A 49.0 ppb (46) 0.23 ppb (3) N/A 14.1 μg/m3 (56) 56.0
 
May 25, 2022, 3 p.m. 19.8 ppb (19) 5.3 ppb (5) N/A 15.0 ppb (15) N/A N/A 28.0 ppb (26) 0.28 ppb (4) N/A 16.1 μg/m3 (60) 60.0
 
May 25, 2022, 1 p.m. 22.9 ppb (22) 8.6 ppb (9) N/A 14.0 ppb (14) N/A N/A 3.0 ppb (3) 0.3 ppb (4) N/A 18.3 μg/m3 (65) 65.0
 
May 25, 2022, 9 a.m. 17.1 ppb (17) 0.7 ppb (1) N/A 16.0 ppb (16) N/A N/A 10.0 ppb (10) 0.33 ppb (4) N/A 12.1 μg/m3 (51) 51.0
 
May 25, 2022, 5 a.m. 20.8 ppb (20) 0.2 ppb (1) N/A 21.0 ppb (20) N/A N/A 35.0 ppb (33) 0.28 ppb (4) N/A 14.1 μg/m3 (56) 56.0
 
May 25, 2022, 4 a.m. 18.3 ppb (18) 0.3 ppb (1) N/A 18.0 ppb (17) N/A N/A 45.0 ppb (42) 0.25 ppb (3) N/A 13.6 μg/m3 (55) 55.0
 
May 25, 2022, 1 a.m. 13.0 ppb (13) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A 81.0 ppb (107) 0.26 ppb (4) N/A 20.4 μg/m3 (69) 107.0
 
May 25, 2022, midnight 11.8 ppb (12) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 92.0 ppb (113) 0.24 ppb (3) N/A 16.8 μg/m3 (61) 113.0
 
May 24, 2022, 9 p.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 102.0 ppb (118) 0.26 ppb (4) N/A 15.8 μg/m3 (59) 118.0
 
May 24, 2022, 8 p.m. 12.9 ppb (13) 1.1 ppb (2) N/A 12.0 ppb (12) N/A N/A 88.0 ppb (110) 0.26 ppb (4) N/A 15.6 μg/m3 (59) 110.0
 
May 24, 2022, 7 p.m. 17.3 ppb (17) 2.4 ppb (3) N/A 15.0 ppb (15) N/A N/A 68.0 ppb (94) 0.29 ppb (4) N/A 18.5 μg/m3 (65) 94.0
 
May 24, 2022, 6 p.m. 22.5 ppb (22) 4.6 ppb (5) N/A 18.0 ppb (17) N/A N/A 50.0 ppb (47) 0.31 ppb (4) N/A 20.9 μg/m3 (70) 70.0
 
May 24, 2022, 5 p.m. 25.7 ppb (25) 6.6 ppb (7) N/A 19.0 ppb (18) N/A N/A 38.0 ppb (36) 0.32 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
May 24, 2022, 4 p.m. 28.4 ppb (27) 9.2 ppb (9) N/A 19.0 ppb (18) N/A N/A 27.0 ppb (25) 0.34 ppb (4) N/A 21.4 μg/m3 (71) 71.0
 
May 24, 2022, 3 p.m. 24.2 ppb (23) 9.7 ppb (10) N/A 15.0 ppb (15) N/A N/A 17.0 ppb (16) 0.35 ppb (4) N/A 18.5 μg/m3 (65) 65.0
 
May 24, 2022, 2 p.m. 17.7 ppb (17) 7.1 ppb (7) N/A 11.0 ppb (11) N/A N/A 11.0 ppb (11) 0.25 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
May 24, 2022, 1 p.m. 8.8 ppb (9) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 13.0 ppb (13) 0.16 ppb (3) N/A 12.8 μg/m3 (53) 53.0
 
May 24, 2022, noon 6.3 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) 0.13 ppb (2) N/A 10.6 μg/m3 (45) 45.0
 
May 24, 2022, 10 a.m. 6.1 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.1 ppb (2) N/A 10.9 μg/m3 (46) 46.0
 
May 24, 2022, 9 a.m. 8.5 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) 0.09 ppb (2) N/A 11.5 μg/m3 (48) 48.0
 
May 24, 2022, 8 a.m. 10.1 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) 0.16 ppb (3) N/A 11.6 μg/m3 (49) 49.0
 
May 24, 2022, 6 a.m. 12.4 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) 0.17 ppb (3) N/A 13.3 μg/m3 (54) 54.0
 
May 24, 2022, 5 a.m. 11.7 ppb (12) 0.2 ppb (1) N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) 0.16 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 5 a.m. 11.7 ppb (12) 0.2 ppb (1) N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) 0.16 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 4 a.m. 11.2 ppb (11) 0.1 ppb (1) N/A 11.0 ppb (11) N/A N/A 39.0 ppb (37) 0.16 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
May 24, 2022, 4 a.m. 11.2 ppb (11) 0.1 ppb (1) N/A 11.0 ppb (11) N/A N/A 39.0 ppb (37) 0.16 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
May 24, 2022, 3 a.m. 10.8 ppb (11) 0.2 ppb (1) N/A 11.0 ppb (11) N/A N/A 46.0 ppb (43) 0.15 ppb (2) N/A 17.0 μg/m3 (62) 62.0
 
May 24, 2022, 3 a.m. 10.8 ppb (11) 0.2 ppb (1) N/A 11.0 ppb (11) N/A N/A 46.0 ppb (43) 0.15 ppb (2) N/A 17.0 μg/m3 (62) 62.0
 
May 24, 2022, 2 a.m. 10.9 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A N/A 52.0 ppb (49) 0.17 ppb (3) N/A 16.7 μg/m3 (61) 61.0
 
May 24, 2022, 2 a.m. 10.9 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A N/A 52.0 ppb (49) 0.17 ppb (3) N/A 16.7 μg/m3 (61) 61.0
 
May 24, 2022, 1 a.m. 10.3 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 64.0 ppb (81) 0.19 ppb (3) N/A 16.8 μg/m3 (61) 81.0
 
May 24, 2022, 1 a.m. 10.3 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 64.0 ppb (81) 0.19 ppb (3) N/A 16.8 μg/m3 (61) 81.0
 
May 24, 2022, midnight 11.6 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 73.0 ppb (103) 0.24 ppb (3) N/A 25.1 μg/m3 (79) 103.0
 
May 24, 2022, midnight 11.6 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 73.0 ppb (103) 0.24 ppb (3) N/A 25.1 μg/m3 (79) 103.0
 
May 23, 2022, 11 p.m. 11.6 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A N/A 75.0 ppb (104) 0.26 ppb (4) N/A 19.2 μg/m3 (66) 104.0
 
May 23, 2022, 11 p.m. 11.6 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A N/A 75.0 ppb (104) 0.26 ppb (4) N/A 19.2 μg/m3 (66) 104.0
 
May 23, 2022, 8 p.m. 13.3 ppb (13) 2.2 ppb (3) N/A 11.0 ppb (11) N/A N/A 60.0 ppb (68) 0.32 ppb (4) N/A 18.0 μg/m3 (64) 68.0
 
May 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
May 23, 2022, 6 p.m. 24.1 ppb (23) 7.4 ppb (7) N/A 17.0 ppb (17) N/A N/A 6.0 ppb (6) 0.27 ppb (4) N/A 19.8 μg/m3 (68) 68.0
 
May 23, 2022, 3 p.m. 24.1 ppb (23) 7.4 ppb (7) N/A 17.0 ppb (17) N/A N/A 6.0 ppb (6) 0.27 ppb (4) N/A 14.6 μg/m3 (57) 57.0
 
May 23, 2022, 2 p.m. 24.1 ppb (23) 7.4 ppb (7) N/A 17.0 ppb (17) N/A N/A 6.0 ppb (6) 0.27 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 23, 2022, 11 a.m. 6.5 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (15) 0.18 ppb (3) N/A 11.3 μg/m3 (48) 48.0
 
May 23, 2022, 10 a.m. 8.7 ppb (9) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) 0.19 ppb (3) N/A 14.3 μg/m3 (56) 56.0
 
May 23, 2022, 10 a.m. 8.7 ppb (9) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) 0.19 ppb (3) N/A 14.3 μg/m3 (56) 56.0
 
May 23, 2022, 9 a.m. 9.2 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A N/A 21.0 ppb (20) 0.19 ppb (3) N/A 14.1 μg/m3 (56) 56.0
 
May 23, 2022, 3 a.m. 10.2 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 40.0 ppb (38) 0.15 ppb (2) N/A 14.5 μg/m3 (57) 57.0
 
May 23, 2022, 2 a.m. 15.8 ppb (15) 3.0 ppb (3) N/A 13.0 ppb (13) N/A N/A 40.0 ppb (38) 0.15 ppb (2) N/A 10.6 μg/m3 (45) 45.0
 
May 23, 2022, 1 a.m. 7.2 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (47) 0.12 ppb (2) N/A 10.9 μg/m3 (46) 47.0
 
May 23, 2022, midnight 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (55) 0.12 ppb (2) N/A 9.2 μg/m3 (39) 55.0
 
May 22, 2022, 11 p.m. 4.4 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 61.0 ppb (71) 0.1 ppb (2) N/A 14.1 μg/m3 (56) 71.0
 
May 22, 2022, 9 p.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 63.0 ppb (78) 0.13 ppb (2) N/A 13.6 μg/m3 (55) 78.0
 
May 22, 2022, 8 p.m. 5.1 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (68) 0.12 ppb (2) N/A 8.9 μg/m3 (38) 68.0
 
May 22, 2022, 7 p.m. 4.0 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) 0.12 ppb (2) N/A 6.8 μg/m3 (29) 51.0
 
May 22, 2022, 6 p.m. 4.8 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) 0.14 ppb (2) N/A 9.1 μg/m3 (38) 47.0
 
May 22, 2022, 5 p.m. 7.1 ppb (7) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) 0.16 ppb (3) N/A 11.1 μg/m3 (47) 47.0
 
May 22, 2022, 4 p.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.1 ppb (2) N/A 7.2 μg/m3 (31) 38.0
 
May 22, 2022, 3 p.m. 4.4 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.13 ppb (2) N/A 8.9 μg/m3 (38) 38.0
 
May 22, 2022, 2 p.m. 10.5 ppb (10) 3.6 ppb (4) N/A 7.0 ppb (7) N/A N/A 15.0 ppb (14) 0.2 ppb (3) N/A 11.6 μg/m3 (49) 49.0
 
May 22, 2022, 1 p.m. 7.7 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (7) 0.21 ppb (3) N/A 3.1 μg/m3 (13) 13.0
 
May 22, 2022, 1 p.m. 7.7 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (7) 0.21 ppb (3) N/A 3.1 μg/m3 (13) 13.0
 
May 22, 2022, noon 5.2 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 8.0 ppb (8) 0.18 ppb (3) N/A 2.1 μg/m3 (9) 9.0
 
May 22, 2022, 11 a.m. 4.9 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 11.0 ppb (11) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
May 22, 2022, 10 a.m. 5.2 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (12) 0.15 ppb (2) N/A 5.3 μg/m3 (23) 23.0
 
May 22, 2022, 9 a.m. 6.0 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (13) 0.15 ppb (2) N/A 6.3 μg/m3 (27) 27.0
 
May 22, 2022, 8 a.m. 5.3 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) 0.14 ppb (2) N/A 6.8 μg/m3 (29) 29.0
 
May 22, 2022, 7 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.07 ppb (2) N/A 9.4 μg/m3 (40) 40.0
 
May 22, 2022, 5 a.m. 8.4 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 35.0 ppb (33) 0.13 ppb (2) N/A 10.6 μg/m3 (45) 45.0
 
May 22, 2022, 3 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) 0.12 ppb (2) N/A 10.6 μg/m3 (45) 45.0
 
May 22, 2022, 2 a.m. 10.0 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A 46.0 ppb (43) 0.1 ppb (2) N/A 9.9 μg/m3 (42) 43.0
 
May 22, 2022, 1 a.m. 4.4 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (49) 0.07 ppb (2) N/A 10.6 μg/m3 (45) 49.0
 
May 22, 2022, midnight 4.4 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) 0.07 ppb (2) N/A 7.9 μg/m3 (33) 47.0
 
May 21, 2022, 11 p.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.06 ppb (2) N/A 8.6 μg/m3 (36) 46.0
 
May 21, 2022, 10 p.m. 4.4 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (49) 0.07 ppb (2) N/A 9.2 μg/m3 (39) 49.0
 
May 21, 2022, 9 p.m. 6.3 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (50) 0.09 ppb (2) N/A 9.6 μg/m3 (40) 50.0
 
May 21, 2022, 8 p.m. 4.5 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 54.0 ppb (50) 0.09 ppb (2) N/A 9.9 μg/m3 (42) 50.0
 
May 21, 2022, 7 p.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) 0.11 ppb (2) N/A 12.1 μg/m3 (51) 51.0
 
May 21, 2022, 6 p.m. 6.4 ppb (7) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (42) 0.11 ppb (2) N/A 11.6 μg/m3 (49) 49.0
 
May 21, 2022, 5 p.m. 8.2 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) 0.13 ppb (2) N/A 8.4 μg/m3 (36) 38.0
 
May 21, 2022, 4 p.m. 6.0 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) 0.09 ppb (2) N/A 8.4 μg/m3 (36) 40.0
 
May 21, 2022, 3 p.m. 5.6 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) 0.1 ppb (2) N/A 9.6 μg/m3 (40) 40.0
 
May 21, 2022, 2 p.m. 11.2 ppb (11) 2.6 ppb (3) N/A 9.0 ppb (9) N/A N/A 22.0 ppb (21) 0.17 ppb (3) N/A 13.8 μg/m3 (55) 55.0
 
May 21, 2022, 1 p.m. 11.8 ppb (12) 1.8 ppb (2) N/A 10.0 ppb (10) N/A N/A 6.0 ppb (6) 0.18 ppb (3) N/A 12.6 μg/m3 (53) 53.0
 
May 21, 2022, 1 p.m. 11.8 ppb (12) 1.8 ppb (2) N/A 10.0 ppb (10) N/A N/A 6.0 ppb (6) 0.18 ppb (3) N/A 12.6 μg/m3 (53) 53.0
 
May 21, 2022, noon 8.0 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 9.0 ppb (9) 0.14 ppb (2) N/A 9.6 μg/m3 (40) 40.0
 
May 21, 2022, 10 a.m. 6.3 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) 0.08 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
May 21, 2022, 9 a.m. 6.5 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.06 ppb (2) N/A 6.8 μg/m3 (29) 29.0
 
May 21, 2022, 8 a.m. 7.0 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) 0.09 ppb (2) N/A 6.3 μg/m3 (27) 27.0
 
May 21, 2022, 4 a.m. 8.7 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 29.0
 
May 21, 2022, 3 a.m. 8.5 ppb (9) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.09 ppb (2) N/A 6.8 μg/m3 (29) 32.0
 
May 21, 2022, 2 a.m. 8.9 ppb (9) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 37.0 ppb (35) 0.08 ppb (2) N/A 5.3 μg/m3 (23) 35.0
 
May 21, 2022, 1 a.m. 7.7 ppb (8) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) 0.09 ppb (2) N/A 6.0 μg/m3 (25) 38.0
 
May 21, 2022, midnight 8.1 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 42.0 ppb (39) 0.1 ppb (2) N/A 7.3 μg/m3 (31) 39.0
 
May 20, 2022, 11 p.m. 8.6 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 48.0 ppb (45) 0.09 ppb (2) N/A 7.7 μg/m3 (33) 45.0
 
May 20, 2022, 10 p.m. 7.7 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 55.0 ppb (51) 0.11 ppb (2) N/A 7.7 μg/m3 (33) 51.0
 
May 20, 2022, 9 p.m. 8.1 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 56.0 ppb (55) 0.12 ppb (2) N/A 9.4 μg/m3 (40) 55.0
 
May 20, 2022, 7 p.m. 9.4 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (8) N/A N/A 52.0 ppb (49) 0.14 ppb (2) N/A 14.8 μg/m3 (57) 57.0
 
May 20, 2022, 6 p.m. 9.9 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 48.0 ppb (45) 0.12 ppb (2) N/A 10.1 μg/m3 (43) 45.0
 
May 20, 2022, 5 p.m. 9.8 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A N/A 44.0 ppb (41) 0.12 ppb (2) N/A 9.1 μg/m3 (38) 41.0
 
May 20, 2022, 4 p.m. 9.7 ppb (10) 2.3 ppb (3) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) 0.13 ppb (2) N/A 8.4 μg/m3 (36) 38.0
 
May 20, 2022, 3 p.m. 10.1 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) 0.12 ppb (2) N/A 10.1 μg/m3 (43) 43.0
 
May 20, 2022, 2 p.m. 9.8 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A 37.0 ppb (35) 0.11 ppb (2) N/A 7.9 μg/m3 (33) 35.0
 
May 20, 2022, 1 p.m. 6.2 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) 0.08 ppb (2) N/A 6.1 μg/m3 (26) 37.0
 
May 20, 2022, 11 a.m. 4.6 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.07 ppb (2) N/A 7.4 μg/m3 (31) 34.0
 
May 20, 2022, 10 a.m. 5.6 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.09 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
May 20, 2022, 9 a.m. 8.0 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.12 ppb (2) N/A 11.6 μg/m3 (49) 49.0
 
May 20, 2022, 8 a.m. 8.1 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.15 ppb (2) N/A 14.1 μg/m3 (56) 56.0