ID: 2975

AQSQID: 060010015

Site Name: Pleasanton - Owens Ct.

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

Updated: Jan. 17, 2022, 12:33 a.m.

Location: Pleasanton (Dougherty), CA

Reporting: True, Located: True

Current AQI: 81.0

Pleasanton (Dougherty) CA, US: 37.701222, -121.903019

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 16, 2022, 11 p.m. 20.1 ppb (19) 6.7 ppb (7) N/A 13.0 ppb (13) N/A N/A N/A 0.75 ppb (10) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 16, 2022, 10 p.m. 21.2 ppb (20) 8.2 ppb (8) N/A 13.0 ppb (13) N/A N/A N/A 0.74 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2022, 9 p.m. 15.3 ppb (15) 5.4 ppb (6) N/A 10.0 ppb (10) N/A N/A N/A 0.55 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 16, 2022, 8 p.m. 20.4 ppb (20) 9.1 ppb (9) N/A 11.0 ppb (11) N/A N/A N/A 0.69 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2022, 7 p.m. 17.6 ppb (17) 8.6 ppb (9) N/A 9.0 ppb (9) N/A N/A N/A 0.64 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2022, 6 p.m. 21.8 ppb (21) 12.0 ppb (12) N/A 10.0 ppb (10) N/A N/A N/A 0.75 ppb (10) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 16, 2022, 5 p.m. 22.8 ppb (22) 11.9 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A 0.66 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 16, 2022, 4 p.m. 29.6 ppb (28) 17.8 ppb (17) N/A 12.0 ppb (12) N/A N/A N/A 0.69 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2022, 3 p.m. 27.7 ppb (27) 16.6 ppb (16) N/A 11.0 ppb (11) N/A N/A N/A 0.52 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2022, 2 p.m. 23.5 ppb (23) 11.5 ppb (11) N/A 12.0 ppb (12) N/A N/A N/A 0.5 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2022, 1 p.m. 20.1 ppb (19) 8.2 ppb (8) N/A 12.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, noon 18.6 ppb (18) 5.3 ppb (5) N/A 13.0 ppb (13) N/A N/A N/A 0.45 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 11 a.m. 19.9 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (14) N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2022, 9 a.m. 16.9 ppb (16) 4.9 ppb (5) N/A 12.0 ppb (12) N/A N/A N/A 0.45 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 8 a.m. 22.4 ppb (22) 6.1 ppb (6) N/A 16.0 ppb (16) N/A N/A N/A 0.54 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2022, 7 a.m. 19.0 ppb (18) 7.2 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.55 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2022, 6 a.m. 27.1 ppb (26) 12.1 ppb (12) N/A 15.0 ppb (15) N/A N/A N/A 0.63 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2022, 5 a.m. 18.6 ppb (18) 6.1 ppb (6) N/A 13.0 ppb (13) N/A N/A N/A 0.55 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 4 a.m. 27.9 ppb (27) 10.1 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.85 ppb (10) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2022, 3 a.m. 28.8 ppb (28) 10.4 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.77 ppb (10) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2022, 2 a.m. 28.5 ppb (27) 10.7 ppb (11) N/A 18.0 ppb (17) N/A N/A N/A 0.66 ppb (8) N/A 0.0 μg/m3 (0) 27.0
 
Jan. 16, 2022, 1 a.m. 6.8 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A -1.0 μg/m3 (0) 7.0
 
Jan. 16, 2022, midnight 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (3) N/A 0.0 μg/m3 (0) 4.0
 
Jan. 15, 2022, 11 p.m. 5.4 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) N/A -1.0 μg/m3 (0) 6.0
 
Jan. 15, 2022, 10 p.m. 17.1 ppb (17) 6.9 ppb (7) N/A 10.0 ppb (10) N/A N/A N/A 0.6 ppb (7) N/A 2.0 μg/m3 (9) 17.0
 
Jan. 15, 2022, 9 p.m. 17.7 ppb (17) 7.5 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A 0.58 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2022, 8 p.m. 13.4 ppb (13) 5.7 ppb (6) N/A 8.0 ppb (8) N/A N/A N/A 0.42 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2022, 7 p.m. 45.8 ppb (44) 27.6 ppb (27) N/A 18.0 ppb (17) N/A N/A N/A 1.01 ppb (12) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 15, 2022, 6 p.m. 70.1 ppb (69) 50.5 ppb (48) N/A 20.0 ppb (19) N/A N/A N/A 1.16 ppb (14) N/A 20.0 μg/m3 (68) 69.0
 
Jan. 15, 2022, 5 p.m. 53.8 ppb (51) 37.7 ppb (36) N/A 16.0 ppb (16) N/A N/A N/A 0.74 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 15, 2022, 4 p.m. 49.9 ppb (48) 35.2 ppb (34) N/A 15.0 ppb (15) N/A N/A N/A 0.75 ppb (10) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 15, 2022, 3 p.m. 40.3 ppb (39) 27.3 ppb (26) N/A 13.0 ppb (13) N/A N/A N/A 0.61 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2022, 2 p.m. 32.4 ppb (31) 20.7 ppb (20) N/A 12.0 ppb (12) N/A N/A N/A 0.54 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2022, 1 p.m. 29.0 ppb (28) 17.2 ppb (17) N/A 12.0 ppb (12) N/A N/A N/A 0.45 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2022, noon 24.9 ppb (24) 13.0 ppb (13) N/A 12.0 ppb (12) N/A N/A N/A 0.38 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2022, 11 a.m. 28.3 ppb (27) 14.7 ppb (14) N/A 14.0 ppb (14) N/A N/A N/A 0.39 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2022, 9 a.m. 17.3 ppb (17) 5.7 ppb (6) N/A 12.0 ppb (12) N/A N/A N/A 0.45 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2022, 8 a.m. 19.5 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (14) N/A N/A N/A 0.47 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2022, 7 a.m. 30.1 ppb (29) 13.2 ppb (13) N/A 17.0 ppb (17) N/A N/A N/A 0.56 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2022, 6 a.m. 32.6 ppb (31) 13.3 ppb (13) N/A 19.0 ppb (18) N/A N/A N/A 0.62 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2022, 5 a.m. 33.2 ppb (32) 11.7 ppb (12) N/A 22.0 ppb (21) N/A N/A N/A 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2022, 4 a.m. 29.8 ppb (29) 10.0 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.67 ppb (8) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2022, 3 a.m. 38.7 ppb (37) 16.5 ppb (16) N/A 22.0 ppb (21) N/A N/A N/A 0.7 ppb (8) N/A 6.0 μg/m3 (25) 37.0
 
Jan. 15, 2022, 2 a.m. 20.4 ppb (20) 2.7 ppb (3) N/A 18.0 ppb (17) N/A N/A N/A 0.34 ppb (4) N/A 2.0 μg/m3 (9) 20.0
 
Jan. 15, 2022, 1 a.m. 37.1 ppb (35) 13.1 ppb (13) N/A 24.0 ppb (23) N/A N/A N/A 0.64 ppb (7) N/A 4.0 μg/m3 (17) 35.0
 
Jan. 15, 2022, midnight 19.5 ppb (19) 5.8 ppb (6) N/A 14.0 ppb (14) N/A N/A N/A 0.29 ppb (4) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 14, 2022, 11 p.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) N/A 2.0 μg/m3 (9) 9.0
 
Jan. 14, 2022, 10 p.m. 11.8 ppb (12) 4.1 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.29 ppb (4) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 9 p.m. 17.2 ppb (17) 6.4 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2022, 8 p.m. 23.2 ppb (22) 8.6 ppb (9) N/A 15.0 ppb (15) N/A N/A N/A 0.32 ppb (4) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 14, 2022, 7 p.m. 11.7 ppb (12) 3.9 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2022, 6 p.m. 38.4 ppb (37) 18.9 ppb (18) N/A 20.0 ppb (19) N/A N/A N/A 0.46 ppb (6) N/A 8.0 μg/m3 (34) 37.0
 
Jan. 14, 2022, 5 p.m. 70.2 ppb (69) 40.1 ppb (38) N/A 31.0 ppb (30) N/A N/A N/A 0.64 ppb (7) N/A N/A 69.0
 
Jan. 14, 2022, 4 p.m. 34.4 ppb (33) 14.8 ppb (14) N/A 20.0 ppb (19) N/A N/A N/A 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2022, 3 p.m. 77.9 ppb (77) 49.3 ppb (47) N/A 29.0 ppb (28) N/A N/A N/A 0.78 ppb (10) N/A 13.0 μg/m3 (53) 77.0
 
Jan. 14, 2022, 2 p.m. 94.5 ppb (95) 71.1 ppb (70) N/A 23.0 ppb (22) N/A N/A N/A 0.87 ppb (11) N/A 10.0 μg/m3 (42) 95.0
 
Jan. 14, 2022, 1 p.m. 68.3 ppb (67) 46.3 ppb (44) N/A 22.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A 10.0 μg/m3 (42) 67.0
 
Jan. 14, 2022, noon 35.0 ppb (34) 19.3 ppb (19) N/A 16.0 ppb (16) N/A N/A N/A 0.43 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 14, 2022, 11 a.m. 52.4 ppb (50) 34.3 ppb (33) N/A 18.0 ppb (17) N/A N/A N/A 0.57 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (72) 72.0
 
Jan. 14, 2022, 9 a.m. 43.7 ppb (42) 27.4 ppb (26) N/A 16.0 ppb (16) N/A N/A N/A 0.68 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 14, 2022, 8 a.m. 46.6 ppb (44) 29.9 ppb (29) N/A 17.0 ppb (17) N/A N/A N/A 0.74 ppb (8) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 14, 2022, 7 a.m. 38.7 ppb (37) 20.5 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A 0.67 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 14, 2022, 6 a.m. 40.4 ppb (39) 20.8 ppb (20) N/A 20.0 ppb (19) N/A N/A N/A 0.69 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 14, 2022, 5 a.m. 50.9 ppb (49) 28.6 ppb (27) N/A 22.0 ppb (21) N/A N/A N/A 0.87 ppb (11) N/A 30.0 μg/m3 (89) 89.0
 
Jan. 14, 2022, 4 a.m. 57.1 ppb (55) 31.4 ppb (30) N/A 26.0 ppb (25) N/A N/A N/A 1.0 ppb (12) N/A 32.0 μg/m3 (93) 93.0
 
Jan. 14, 2022, 3 a.m. 41.7 ppb (40) 15.6 ppb (15) N/A 26.0 ppb (25) N/A N/A N/A 0.8 ppb (10) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 14, 2022, 2 a.m. 35.3 ppb (34) 7.9 ppb (8) N/A 28.0 ppb (27) N/A N/A N/A 0.63 ppb (7) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 14, 2022, 1 a.m. 39.0 ppb (37) 7.1 ppb (7) N/A 32.0 ppb (31) N/A N/A N/A 0.58 ppb (7) N/A 34.0 μg/m3 (98) 98.0
 
Jan. 14, 2022, midnight 47.3 ppb (45) 15.2 ppb (15) N/A 32.0 ppb (31) N/A N/A N/A 0.7 ppb (8) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 13, 2022, 11 p.m. 32.2 ppb (31) 11.9 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.49 ppb (6) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 13, 2022, 10 p.m. 30.1 ppb (29) 10.0 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.41 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 13, 2022, 9 p.m. 40.8 ppb (39) 18.7 ppb (18) N/A 22.0 ppb (21) N/A N/A N/A 0.51 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 13, 2022, 8 p.m. 74.2 ppb (73) 44.3 ppb (42) N/A 30.0 ppb (29) N/A N/A N/A 0.79 ppb (10) N/A 19.0 μg/m3 (66) 73.0
 
Jan. 13, 2022, 7 p.m. 57.2 ppb (55) 33.1 ppb (32) N/A 24.0 ppb (23) N/A N/A N/A 0.66 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 13, 2022, 6 p.m. 52.1 ppb (50) 33.4 ppb (32) N/A 19.0 ppb (18) N/A N/A N/A 0.66 ppb (8) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 13, 2022, 5 p.m. 69.1 ppb (68) 47.8 ppb (46) N/A 21.0 ppb (20) N/A N/A N/A 0.8 ppb (10) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 13, 2022, 4 p.m. 83.1 ppb (82) 62.3 ppb (60) N/A 21.0 ppb (20) N/A N/A N/A 0.91 ppb (11) N/A 20.0 μg/m3 (68) 82.0
 
Jan. 13, 2022, 3 p.m. 71.3 ppb (70) 52.3 ppb (50) N/A 19.0 ppb (18) N/A N/A N/A 0.84 ppb (10) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 13, 2022, 2 p.m. 79.2 ppb (78) 61.2 ppb (59) N/A 18.0 ppb (17) N/A N/A N/A 0.8 ppb (10) N/A 21.0 μg/m3 (70) 78.0
 
Jan. 13, 2022, 1 p.m. 73.0 ppb (72) 53.9 ppb (51) N/A 19.0 ppb (18) N/A N/A N/A 0.73 ppb (8) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 13, 2022, noon 42.3 ppb (40) 27.1 ppb (26) N/A 15.0 ppb (15) N/A N/A N/A 0.56 ppb (7) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 13, 2022, 11 a.m. 36.7 ppb (35) 19.7 ppb (19) N/A 17.0 ppb (17) N/A N/A N/A 0.54 ppb (6) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 13, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
Jan. 13, 2022, 9 a.m. 28.5 ppb (27) 12.3 ppb (12) N/A 16.0 ppb (16) N/A N/A N/A 0.53 ppb (6) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 13, 2022, 8 a.m. 27.5 ppb (26) 11.5 ppb (11) N/A 16.0 ppb (16) N/A N/A N/A 0.56 ppb (7) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 13, 2022, 7 a.m. 34.6 ppb (33) 16.6 ppb (16) N/A 18.0 ppb (17) N/A N/A N/A 0.62 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 13, 2022, 6 a.m. 37.6 ppb (36) 17.6 ppb (17) N/A 20.0 ppb (19) N/A N/A N/A 0.58 ppb (7) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 13, 2022, 5 a.m. 35.0 ppb (34) 14.2 ppb (14) N/A 21.0 ppb (20) N/A N/A N/A 0.67 ppb (8) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 13, 2022, 4 a.m. 40.6 ppb (39) 18.5 ppb (18) N/A 22.0 ppb (21) N/A N/A N/A 0.72 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 13, 2022, 3 a.m. 52.6 ppb (50) 26.3 ppb (25) N/A 26.0 ppb (25) N/A N/A N/A 0.69 ppb (8) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 13, 2022, 2 a.m. 35.8 ppb (34) 11.9 ppb (12) N/A 24.0 ppb (23) N/A N/A N/A 0.55 ppb (7) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 13, 2022, 1 a.m. 18.4 ppb (18) 1.1 ppb (2) N/A 17.0 ppb (17) N/A N/A N/A 0.31 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 13, 2022, midnight 12.7 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (12) N/A N/A N/A 0.27 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 12, 2022, 11 p.m. 11.4 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.27 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 10 p.m. 10.4 ppb (10) 2.3 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.27 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2022, 9 p.m. 11.1 ppb (11) 2.9 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.29 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 12, 2022, 8 p.m. 7.5 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 7 p.m. 27.6 ppb (27) 12.5 ppb (12) N/A 15.0 ppb (15) N/A N/A N/A 0.39 ppb (5) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 12, 2022, 6 p.m. 20.8 ppb (20) 8.1 ppb (8) N/A 13.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 12, 2022, 5 p.m. 65.9 ppb (64) 44.7 ppb (43) N/A 21.0 ppb (20) N/A N/A N/A 0.74 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 12, 2022, 4 p.m. 97.3 ppb (98) 72.2 ppb (71) N/A 25.0 ppb (24) N/A N/A N/A 0.98 ppb (12) N/A 20.0 μg/m3 (68) 98.0
 
Jan. 12, 2022, 3 p.m. 56.9 ppb (55) 36.9 ppb (35) N/A 20.0 ppb (19) N/A N/A N/A 0.66 ppb (8) N/A 10.0 μg/m3 (42) 55.0
 
Jan. 12, 2022, 2 p.m. 68.1 ppb (67) 46.6 ppb (44) N/A 22.0 ppb (21) N/A N/A N/A 0.64 ppb (7) N/A 10.0 μg/m3 (42) 67.0
 
Jan. 12, 2022, 1 p.m. 55.5 ppb (53) 34.1 ppb (33) N/A 22.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A 11.0 μg/m3 (46) 53.0
 
Jan. 12, 2022, noon 44.8 ppb (43) 25.7 ppb (25) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (34) 43.0
 
Jan. 12, 2022, 11 a.m. 34.0 ppb (33) 17.3 ppb (17) N/A 17.0 ppb (17) N/A N/A N/A 0.47 ppb (6) N/A 6.0 μg/m3 (25) 33.0
 
Jan. 12, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2022, 9 a.m. 26.5 ppb (25) 8.6 ppb (9) N/A 18.0 ppb (17) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2022, 8 a.m. 27.2 ppb (26) 10.6 ppb (10) N/A 17.0 ppb (17) N/A N/A N/A 0.37 ppb (5) N/A 6.0 μg/m3 (25) 26.0
 
Jan. 12, 2022, 7 a.m. 33.0 ppb (32) 13.7 ppb (13) N/A 19.0 ppb (18) N/A N/A N/A 0.47 ppb (6) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 12, 2022, 6 a.m. 36.1 ppb (35) 16.2 ppb (16) N/A 20.0 ppb (19) N/A N/A N/A 0.62 ppb (7) N/A 7.0 μg/m3 (30) 35.0
 
Jan. 12, 2022, 5 a.m. 32.8 ppb (31) 15.3 ppb (15) N/A 18.0 ppb (17) N/A N/A N/A 0.52 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 4 a.m. 34.2 ppb (33) 16.8 ppb (16) N/A 17.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2022, 3 a.m. 39.5 ppb (38) 19.2 ppb (19) N/A 20.0 ppb (19) N/A N/A N/A 0.61 ppb (7) N/A 7.0 μg/m3 (30) 38.0
 
Jan. 12, 2022, 2 a.m. 41.4 ppb (40) 15.8 ppb (15) N/A 26.0 ppb (25) N/A N/A N/A 0.67 ppb (8) N/A 8.0 μg/m3 (34) 40.0
 
Jan. 12, 2022, 1 a.m. 45.6 ppb (44) 19.0 ppb (18) N/A 27.0 ppb (26) N/A N/A N/A 0.82 ppb (10) N/A 7.0 μg/m3 (30) 44.0
 
Jan. 12, 2022, midnight 37.6 ppb (36) 17.2 ppb (17) N/A 20.0 ppb (19) N/A N/A N/A 0.57 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2022, 11 p.m. 39.2 ppb (37) 18.7 ppb (18) N/A 21.0 ppb (20) N/A N/A N/A 0.52 ppb (6) N/A 4.0 μg/m3 (17) 37.0
 
Jan. 11, 2022, 10 p.m. 43.4 ppb (41) 21.5 ppb (21) N/A 22.0 ppb (21) N/A N/A N/A 0.58 ppb (7) N/A 2.0 μg/m3 (9) 41.0
 
Jan. 11, 2022, 9 p.m. 24.1 ppb (23) 10.2 ppb (10) N/A 14.0 ppb (14) N/A N/A N/A 0.34 ppb (4) N/A 0.0 μg/m3 (0) 23.0
 
Jan. 11, 2022, 8 p.m. 15.6 ppb (15) 4.8 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.27 ppb (4) N/A 1.0 μg/m3 (5) 15.0
 
Jan. 11, 2022, 7 p.m. 33.4 ppb (32) 15.5 ppb (15) N/A 18.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 11, 2022, 6 p.m. 66.5 ppb (65) 41.6 ppb (40) N/A 25.0 ppb (24) N/A N/A N/A 0.55 ppb (7) N/A 10.0 μg/m3 (42) 65.0
 
Jan. 11, 2022, 5 p.m. 107.5 ppb (103) 81.2 ppb (80) N/A 26.0 ppb (25) N/A N/A N/A 0.78 ppb (10) N/A 10.0 μg/m3 (42) 103.0
 
Jan. 11, 2022, 4 p.m. 88.5 ppb (88) 66.3 ppb (65) N/A 22.0 ppb (21) N/A N/A N/A 0.69 ppb (8) N/A 9.0 μg/m3 (38) 88.0
 
Jan. 11, 2022, 3 p.m. 73.5 ppb (72) 55.8 ppb (53) N/A 18.0 ppb (17) N/A N/A N/A 0.62 ppb (7) N/A 9.0 μg/m3 (38) 72.0
 
Jan. 11, 2022, 2 p.m. 74.1 ppb (73) 54.9 ppb (52) N/A 19.0 ppb (18) N/A N/A N/A 0.61 ppb (7) N/A 7.0 μg/m3 (30) 73.0
 
Jan. 11, 2022, 1 p.m. 55.3 ppb (53) 37.9 ppb (36) N/A 17.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (30) 53.0
 
Jan. 11, 2022, noon 36.9 ppb (35) 21.0 ppb (20) N/A 16.0 ppb (16) N/A N/A N/A 0.39 ppb (5) N/A 8.0 μg/m3 (34) 35.0
 
Jan. 11, 2022, 11 a.m. 44.5 ppb (42) 28.1 ppb (27) N/A 16.0 ppb (16) N/A N/A N/A 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2022, 9 a.m. 31.4 ppb (30) 15.1 ppb (15) N/A 16.0 ppb (16) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 11, 2022, 8 a.m. 37.8 ppb (36) 21.4 ppb (21) N/A 16.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (34) 36.0
 
Jan. 11, 2022, 7 a.m. 28.1 ppb (27) 12.7 ppb (12) N/A 15.0 ppb (15) N/A N/A N/A 0.39 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2022, 6 a.m. 38.5 ppb (37) 20.6 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (30) 37.0
 
Jan. 11, 2022, 5 a.m. 34.7 ppb (33) 17.7 ppb (17) N/A 17.0 ppb (17) N/A N/A N/A 0.51 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 11, 2022, 4 a.m. 42.9 ppb (41) 22.7 ppb (22) N/A 20.0 ppb (19) N/A N/A N/A 0.57 ppb (7) N/A 9.0 μg/m3 (38) 41.0
 
Jan. 11, 2022, 3 a.m. 34.3 ppb (33) 11.3 ppb (11) N/A 23.0 ppb (22) N/A N/A N/A 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2022, 2 a.m. 25.3 ppb (24) 4.4 ppb (5) N/A 21.0 ppb (20) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 11, 2022, 1 a.m. 12.6 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.27 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, midnight 9.2 ppb (9) 1.3 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.21 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 10, 2022, 11 p.m. 11.8 ppb (12) 3.0 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 10, 2022, 10 p.m. 21.3 ppb (21) 9.7 ppb (10) N/A 12.0 ppb (12) N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 10, 2022, 9 p.m. 26.9 ppb (26) 12.2 ppb (12) N/A 15.0 ppb (15) N/A N/A N/A 0.37 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 10, 2022, 8 p.m. 40.1 ppb (38) 20.7 ppb (20) N/A 19.0 ppb (18) N/A N/A N/A 0.52 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 10, 2022, 7 p.m. 22.0 ppb (21) 9.8 ppb (10) N/A 12.0 ppb (12) N/A N/A N/A 0.4 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2022, 6 p.m. 57.6 ppb (55) 39.0 ppb (37) N/A 19.0 ppb (18) N/A N/A N/A 0.65 ppb (8) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 10, 2022, 5 p.m. 93.3 ppb (93) 69.2 ppb (68) N/A 24.0 ppb (23) N/A N/A N/A 0.82 ppb (10) N/A 21.0 μg/m3 (70) 93.0
 
Jan. 10, 2022, 4 p.m. 79.2 ppb (78) 59.9 ppb (58) N/A 19.0 ppb (18) N/A N/A N/A 0.86 ppb (11) N/A 19.0 μg/m3 (66) 78.0
 
Jan. 10, 2022, 3 p.m. 78.6 ppb (78) 58.7 ppb (57) N/A 20.0 ppb (19) N/A N/A N/A 0.89 ppb (11) N/A 16.0 μg/m3 (60) 78.0
 
Jan. 10, 2022, 2 p.m. 59.3 ppb (57) 40.9 ppb (39) N/A 18.0 ppb (17) N/A N/A N/A 0.63 ppb (7) N/A 14.0 μg/m3 (55) 57.0
 
Jan. 10, 2022, 1 p.m. 58.5 ppb (56) 40.4 ppb (39) N/A 18.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2022, noon 47.2 ppb (45) 31.9 ppb (31) N/A 15.0 ppb (15) N/A N/A N/A 0.52 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2022, 11 a.m. 37.0 ppb (35) 22.8 ppb (22) N/A 14.0 ppb (14) N/A N/A N/A 0.52 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 10, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
Jan. 10, 2022, 9 a.m. 34.1 ppb (33) 18.9 ppb (18) N/A 15.0 ppb (15) N/A N/A N/A 0.52 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 10, 2022, 8 a.m. 30.0 ppb (29) 14.4 ppb (14) N/A 16.0 ppb (16) N/A N/A N/A 0.46 ppb (6) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 10, 2022, 7 a.m. 35.4 ppb (34) 18.6 ppb (18) N/A 17.0 ppb (17) N/A N/A N/A 0.55 ppb (7) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 10, 2022, 6 a.m. 26.3 ppb (25) 11.1 ppb (11) N/A 15.0 ppb (15) N/A N/A N/A 0.48 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2022, 5 a.m. 33.4 ppb (32) 15.4 ppb (15) N/A 18.0 ppb (17) N/A N/A N/A 0.64 ppb (7) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 10, 2022, 4 a.m. 28.5 ppb (27) 12.0 ppb (12) N/A 17.0 ppb (17) N/A N/A N/A 0.62 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 10, 2022, 3 a.m. 19.0 ppb (18) 5.5 ppb (6) N/A 14.0 ppb (14) N/A N/A N/A 0.44 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2022, 2 a.m. 8.5 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.26 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2022, 1 a.m. 7.6 ppb (8) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.25 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 10, 2022, midnight 5.4 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0