AQSQID: 060831008

Site Name: Santa Maria - Broadway

Location: Santa Maria (N Santa Maria), CA

Reporting: True, Located: True

Current AQI: 35.0

Santa Maria (N Santa Maria) CA, US: 34.942872, -120.435611

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 25, 2020, 10 p.m. 6.8 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.19 ppb (2) 39.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
Jan. 25, 2020, 9 p.m. 6.7 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.2 ppb (2) 32.0 μg/m3 (29) 5.0 μg/m3 (21) 29.0
 
Jan. 25, 2020, 8 p.m. 5.7 ppb (5) 2.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.17 ppb (2) 33.0 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
Jan. 25, 2020, 7 p.m. 5.9 ppb (5) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.15 ppb (2) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 26.0
 
Jan. 25, 2020, 6 p.m. 7.8 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.18 ppb (2) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 24.0
 
Jan. 25, 2020, 5 p.m. 6.5 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.19 ppb (2) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 25.0
 
Jan. 25, 2020, 4 p.m. 5.8 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.19 ppb (2) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 24.0
 
Jan. 25, 2020, 3 p.m. 5.3 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.17 ppb (2) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 24.0
 
Jan. 25, 2020, 2 p.m. 3.7 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.17 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 25.0
 
Jan. 25, 2020, 1 p.m. 2.5 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.15 ppb (2) 6.0 μg/m3 (5) 5.0 μg/m3 (21) 25.0
 
Jan. 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 25, 2020, 11 a.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.13 ppb (1) 8.0 μg/m3 (7) 0.0 μg/m3 (0) 25.0
 
Jan. 25, 2020, 10 a.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.15 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 24.0
 
Jan. 25, 2020, 9 a.m. 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 0.14 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (4) 23.0
 
Jan. 25, 2020, 8 a.m. 2.4 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.13 ppb (1) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 27.0
 
Jan. 25, 2020, 7 a.m. 3.6 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 0.15 ppb (2) 6.0 μg/m3 (5) 1.0 μg/m3 (4) 23.0
 
Jan. 25, 2020, 6 a.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.14 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 26.0
 
Jan. 25, 2020, 5 a.m. 8.1 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.19 ppb (2) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 22.0
 
Jan. 25, 2020, 4 a.m. 7.2 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.2 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 21.0
 
Jan. 25, 2020, 3 a.m. 10.8 ppb (10) 3.3 ppb (3) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.27 ppb (3) 22.0 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
Jan. 25, 2020, 2 a.m. 16.2 ppb (15) 4.8 ppb (4) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.34 ppb (4) 44.0 μg/m3 (40) 8.0 μg/m3 (33) 40.0
 
Jan. 25, 2020, 1 a.m. 12.6 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.29 ppb (3) 20.0 μg/m3 (18) 3.0 μg/m3 (12) 18.0
 
Jan. 25, 2020, midnight 7.0 ppb (6) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.18 ppb (2) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 20.0
 
Jan. 24, 2020, 11 p.m. 6.2 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.18 ppb (2) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 22.0
 
Jan. 24, 2020, 10 p.m. 4.0 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.13 ppb (1) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 24.0
 
Jan. 24, 2020, 9 p.m. 3.1 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.12 ppb (1) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 24.0
 
Jan. 24, 2020, 8 p.m. 2.9 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.12 ppb (1) 13.0 μg/m3 (12) 1.0 μg/m3 (4) 25.0
 
Jan. 24, 2020, 7 p.m. 9.0 ppb (8) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.21 ppb (2) 18.0 μg/m3 (16) 4.0 μg/m3 (17) 18.0
 
Jan. 24, 2020, 6 p.m. 17.3 ppb (16) 8.1 ppb (8) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.27 ppb (3) 32.0 μg/m3 (29) 5.0 μg/m3 (21) 29.0
 
Jan. 24, 2020, 5 p.m. 29.4 ppb (27) 16.4 ppb (15) N/A 13.0 ppb (12) N/A N/A 8.0 ppb (6) 0.39 ppb (4) 38.0 μg/m3 (35) 4.0 μg/m3 (17) 35.0
 
Jan. 24, 2020, 4 p.m. 38.5 ppb (36) 25.6 ppb (24) N/A 13.0 ppb (12) N/A N/A 2.0 ppb (2) 0.41 ppb (5) 30.0 μg/m3 (27) 6.0 μg/m3 (25) 36.0
 
Jan. 24, 2020, 3 p.m. 65.4 ppb (62) 50.5 ppb (47) N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) 1.06 ppb (12) 49.0 μg/m3 (45) 7.0 μg/m3 (29) 62.0
 
Jan. 24, 2020, 2 p.m. 42.4 ppb (39) 30.7 ppb (28) N/A 12.0 ppb (11) N/A N/A 0.0 ppb (0) 0.55 ppb (6) 30.0 μg/m3 (27) 6.0 μg/m3 (25) 39.0
 
Jan. 24, 2020, 1 p.m. 17.4 ppb (16) 8.8 ppb (8) N/A 9.0 ppb (8) N/A N/A 1.0 ppb (1) 0.24 ppb (3) 9.0 μg/m3 (8) N/A 16.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
Jan. 24, 2020, 11 a.m. 4.2 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 7.0 ppb (5) 0.13 ppb (1) 9.0 μg/m3 (8) N/A 8.0
 
Jan. 24, 2020, 10 a.m. 4.9 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 5.0 ppb (4) 0.14 ppb (2) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 13.0
 
Jan. 24, 2020, 9 a.m. 9.9 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 2.0 ppb (2) 0.17 ppb (2) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 14.0
 
Jan. 24, 2020, 8 a.m. 12.5 ppb (12) 2.3 ppb (2) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) 0.22 ppb (2) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 13.0
 
Jan. 24, 2020, 7 a.m. 19.0 ppb (18) 5.8 ppb (5) N/A 13.0 ppb (12) N/A N/A 2.0 ppb (2) 0.3 ppb (3) 25.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
Jan. 24, 2020, 6 a.m. 20.2 ppb (19) 5.7 ppb (5) N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) 0.29 ppb (3) 22.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
Jan. 24, 2020, 5 a.m. 23.7 ppb (22) 6.0 ppb (6) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.41 ppb (5) 32.0 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
Jan. 24, 2020, 4 a.m. 22.9 ppb (21) 5.9 ppb (5) N/A 17.0 ppb (16) N/A N/A 2.0 ppb (2) 0.38 ppb (4) 34.0 μg/m3 (31) 8.0 μg/m3 (33) 33.0
 
Jan. 24, 2020, 3 a.m. 17.0 ppb (16) 2.1 ppb (2) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) 0.31 ppb (3) 35.0 μg/m3 (32) 5.0 μg/m3 (21) 32.0
 
Jan. 24, 2020, 2 a.m. 13.7 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.24 ppb (3) 32.0 μg/m3 (29) 5.0 μg/m3 (21) 29.0
 
Jan. 24, 2020, 1 a.m. 11.1 ppb (10) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.19 ppb (2) 29.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
Jan. 24, 2020, midnight 9.2 ppb (9) 3.2 ppb (3) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.19 ppb (2) 32.0 μg/m3 (29) 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2020, 11 p.m. 7.6 ppb (7) 3.3 ppb (3) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.21 ppb (2) 28.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Jan. 23, 2020, 10 p.m. 13.3 ppb (12) 5.6 ppb (5) N/A 8.0 ppb (7) N/A N/A 27.0 ppb (21) 0.21 ppb (2) 55.0 μg/m3 (50) 4.0 μg/m3 (17) 50.0
 
Jan. 23, 2020, 9 p.m. 13.1 ppb (12) 4.7 ppb (4) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) 0.19 ppb (2) 18.0 μg/m3 (16) 3.0 μg/m3 (12) 23.0
 
Jan. 23, 2020, 8 p.m. 7.9 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.17 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 23.0
 
Jan. 23, 2020, 7 p.m. 6.8 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.17 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2020, 6 p.m. 10.8 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.19 ppb (2) 29.0 μg/m3 (26) 19.0 μg/m3 (65) 65.0
 
Jan. 23, 2020, 5 p.m. 11.0 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) 0.15 ppb (2) 10.0 μg/m3 (9) 1.0 μg/m3 (4) 12.0
 
Jan. 23, 2020, 4 p.m. 21.7 ppb (20) 12.0 ppb (11) N/A 10.0 ppb (9) N/A N/A 6.0 ppb (5) 0.29 ppb (3) 20.0 μg/m3 (18) 1.0 μg/m3 (4) 20.0
 
Jan. 23, 2020, 3 p.m. 24.5 ppb (23) 14.1 ppb (13) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) 0.43 ppb (5) 15.0 μg/m3 (14) -1.0 μg/m3 (0) 23.0
 
Jan. 23, 2020, 2 p.m. 8.6 ppb (8) 2.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 5.0 ppb (4) 0.15 ppb (2) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
Jan. 23, 2020, 1 p.m. 7.2 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (5) 0.14 ppb (2) 4.0 μg/m3 (4) 2.0 μg/m3 (8) 8.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) -1.0 μg/m3 (0) 7.0
 
Jan. 23, 2020, 11 a.m. 7.3 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 4.0 ppb (3) 0.13 ppb (1) 11.0 μg/m3 (10) 0.0 μg/m3 (0) 10.0
 
Jan. 23, 2020, 10 a.m. 5.6 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.12 ppb (1) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
Jan. 23, 2020, 9 a.m. 5.2 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) 0.13 ppb (1) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 9.0
 
Jan. 23, 2020, 8 a.m. 6.4 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) 0.15 ppb (2) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
Jan. 23, 2020, 7 a.m. 7.0 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) 0.14 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 23, 2020, 6 a.m. 8.8 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.22 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2020, 5 a.m. 5.7 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.18 ppb (2) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 23.0
 
Jan. 23, 2020, 4 a.m. 6.5 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.24 ppb (3) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2020, 3 a.m. 10.6 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.2 ppb (2) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2020, 2 a.m. 7.5 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.18 ppb (2) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 18.0
 
Jan. 23, 2020, 1 a.m. 8.6 ppb (8) 3.2 ppb (3) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.17 ppb (2) 13.0 μg/m3 (12) 2.0 μg/m3 (8) 18.0
 
Jan. 23, 2020, midnight 8.7 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 19.0
 
Jan. 22, 2020, 11 p.m. 6.9 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.15 ppb (2) 19.0 μg/m3 (17) 1.0 μg/m3 (4) 22.0
 
Jan. 22, 2020, 10 p.m. 8.0 ppb (7) 3.5 ppb (3) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.14 ppb (2) 31.0 μg/m3 (28) 0.0 μg/m3 (0) 28.0
 
Jan. 22, 2020, 9 p.m. 8.5 ppb (8) 3.9 ppb (4) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.14 ppb (2) 28.0 μg/m3 (25) -1.0 μg/m3 (0) 25.0
 
Jan. 22, 2020, 8 p.m. 10.5 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.16 ppb (2) 13.0 μg/m3 (12) 0.0 μg/m3 (0) 21.0
 
Jan. 22, 2020, 7 p.m. 9.9 ppb (9) 4.4 ppb (4) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.16 ppb (2) 20.0 μg/m3 (18) -1.0 μg/m3 (0) 20.0
 
Jan. 22, 2020, 6 p.m. 14.5 ppb (13) 7.1 ppb (7) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.16 ppb (2) 17.0 μg/m3 (15) -2.0 μg/m3 (0) 15.0
 
Jan. 22, 2020, 5 p.m. 8.1 ppb (8) 3.6 ppb (3) N/A 5.0 ppb (5) N/A N/A 13.0 ppb (10) 0.14 ppb (2) 7.0 μg/m3 (6) -1.0 μg/m3 (0) 10.0
 
Jan. 22, 2020, 4 p.m. 10.4 ppb (10) 4.9 ppb (5) N/A 6.0 ppb (6) N/A N/A 8.0 ppb (6) 0.15 ppb (2) 16.0 μg/m3 (15) 0.0 μg/m3 (0) 15.0
 
Jan. 22, 2020, 3 p.m. 8.7 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (5) 0.17 ppb (2) 10.0 μg/m3 (9) 0.0 μg/m3 (0) 9.0
 
Jan. 22, 2020, 2 p.m. 7.5 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) 0.14 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 7.0
 
Jan. 22, 2020, 1 p.m. 3.3 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 9.0 ppb (7) 0.12 ppb (1) 3.0 μg/m3 (3) 1.0 μg/m3 (4) 7.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 4.0
 
Jan. 22, 2020, 11 a.m. 2.7 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 9.0 ppb (7) 0.09 ppb (1) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 7.0
 
Jan. 22, 2020, 10 a.m. 2.3 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 9.0 ppb (7) 0.09 ppb (1) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 7.0
 
Jan. 22, 2020, 9 a.m. 3.6 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 10.0 ppb (8) 0.1 ppb (1) 6.0 μg/m3 (5) -1.0 μg/m3 (0) 8.0
 
Jan. 22, 2020, 8 a.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 10.0 ppb (8) 0.11 ppb (1) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
Jan. 22, 2020, 7 a.m. 12.1 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 4.0 ppb (3) 0.24 ppb (3) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 6 a.m. 11.4 ppb (11) 1.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 22, 2020, 5 a.m. 20.2 ppb (19) 3.9 ppb (4) N/A 16.0 ppb (15) N/A N/A 3.0 ppb (2) 0.34 ppb (4) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 4 a.m. 17.4 ppb (16) 3.1 ppb (3) N/A 14.0 ppb (13) N/A N/A 7.0 ppb (5) 0.31 ppb (3) 25.0 μg/m3 (23) 3.0 μg/m3 (12) 23.0
 
Jan. 22, 2020, 3 a.m. 11.9 ppb (11) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.24 ppb (3) 30.0 μg/m3 (27) 4.0 μg/m3 (17) 27.0
 
Jan. 22, 2020, 2 a.m. 14.8 ppb (14) 3.4 ppb (3) N/A 11.0 ppb (10) N/A N/A 21.0 ppb (16) 0.29 ppb (3) 25.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
Jan. 22, 2020, 1 a.m. 12.7 ppb (12) 4.3 ppb (4) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.27 ppb (3) 27.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, midnight 9.8 ppb (9) 3.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.18 ppb (2) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 25.0
 
Jan. 21, 2020, 11 p.m. 6.8 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.16 ppb (2) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 28.0
 
Jan. 21, 2020, 10 p.m. 6.2 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.15 ppb (2) 19.0 μg/m3 (17) 1.0 μg/m3 (4) 29.0
 
Jan. 21, 2020, 9 p.m. 5.3 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.12 ppb (1) 17.0 μg/m3 (15) 1.0 μg/m3 (4) 30.0
 
Jan. 21, 2020, 8 p.m. 7.3 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.14 ppb (2) 18.0 μg/m3 (16) 4.0 μg/m3 (17) 28.0
 
Jan. 21, 2020, 7 p.m. 7.4 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.14 ppb (2) 18.0 μg/m3 (16) 6.0 μg/m3 (25) 27.0
 
Jan. 21, 2020, 6 p.m. 7.6 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.16 ppb (2) 23.0 μg/m3 (21) 5.0 μg/m3 (21) 24.0
 
Jan. 21, 2020, 5 p.m. 26.3 ppb (24) 12.6 ppb (12) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) 0.4 ppb (4) 36.0 μg/m3 (33) 7.0 μg/m3 (29) 33.0
 
Jan. 21, 2020, 4 p.m. 44.2 ppb (41) 31.6 ppb (29) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) 0.59 ppb (7) 21.0 μg/m3 (19) 6.0 μg/m3 (25) 41.0
 
Jan. 21, 2020, 3 p.m. 60.0 ppb (56) 40.9 ppb (38) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.47 ppb (5) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 56.0
 
Jan. 21, 2020, 2 p.m. 20.6 ppb (19) 7.0 ppb (6) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) 0.32 ppb (4) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 1 p.m. 16.7 ppb (15) 5.1 ppb (5) N/A 12.0 ppb (11) N/A N/A 2.0 ppb (2) 0.26 ppb (3) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 8.0
 
Jan. 21, 2020, 11 a.m. 8.3 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 7.0 ppb (5) 0.16 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 10 a.m. 8.9 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 7.0 ppb (5) 0.18 ppb (2) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 9 a.m. 10.2 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 8.0 ppb (6) 0.21 ppb (2) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 8 a.m. 10.6 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 13.0 ppb (10) 0.2 ppb (2) 13.0 μg/m3 (12) 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 7 a.m. 14.5 ppb (13) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) 0.24 ppb (3) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 13.0
 
Jan. 21, 2020, 6 a.m. 12.0 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.22 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, 5 a.m. 8.9 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) 0.21 ppb (2) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 16.0
 
Jan. 21, 2020, 4 a.m. 13.4 ppb (12) 5.1 ppb (5) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.18 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 18.0
 
Jan. 21, 2020, 3 a.m. 48.7 ppb (45) 27.0 ppb (25) N/A 23.0 ppb (21) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 45.0
 
Jan. 21, 2020, 2 a.m. 32.7 ppb (30) 21.9 ppb (20) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.25 ppb (3) 16.0 μg/m3 (15) 1.0 μg/m3 (4) 30.0
 
Jan. 21, 2020, 1 a.m. 44.2 ppb (41) 26.1 ppb (24) N/A 19.0 ppb (18) N/A N/A 25.0 ppb (19) 0.23 ppb (3) 16.0 μg/m3 (15) 2.0 μg/m3 (8) 41.0
 
Jan. 21, 2020, midnight 12.5 ppb (12) 5.5 ppb (5) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) 0.18 ppb (2) 17.0 μg/m3 (15) 2.0 μg/m3 (8) 23.0
 
Jan. 20, 2020, 11 p.m. 7.6 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.15 ppb (2) 23.0 μg/m3 (21) 3.0 μg/m3 (12) 24.0
 
Jan. 20, 2020, 10 p.m. 21.3 ppb (20) 7.3 ppb (7) N/A 14.0 ppb (13) N/A N/A 27.0 ppb (21) 0.22 ppb (2) 23.0 μg/m3 (21) 3.0 μg/m3 (12) 21.0
 
Jan. 20, 2020, 9 p.m. 44.5 ppb (41) 23.8 ppb (22) N/A 21.0 ppb (19) N/A N/A 23.0 ppb (18) 0.21 ppb (2) 26.0 μg/m3 (24) 2.0 μg/m3 (8) 41.0
 
Jan. 20, 2020, 8 p.m. 25.9 ppb (24) 13.1 ppb (12) N/A 13.0 ppb (12) N/A N/A 27.0 ppb (21) 0.17 ppb (2) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 24.0
 
Jan. 20, 2020, 7 p.m. 13.0 ppb (12) 7.6 ppb (7) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.15 ppb (2) 20.0 μg/m3 (18) 4.0 μg/m3 (17) 20.0
 
Jan. 20, 2020, 6 p.m. 11.5 ppb (11) 3.3 ppb (3) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.16 ppb (2) 22.0 μg/m3 (20) 3.0 μg/m3 (12) 20.0
 
Jan. 20, 2020, 5 p.m. 16.6 ppb (15) 6.0 ppb (6) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
Jan. 20, 2020, 4 p.m. 34.7 ppb (32) 18.3 ppb (17) N/A 16.0 ppb (15) N/A N/A 2.0 ppb (2) 0.39 ppb (4) 37.0 μg/m3 (34) 5.0 μg/m3 (21) 34.0
 
Jan. 20, 2020, 3 p.m. 26.9 ppb (25) 12.8 ppb (12) N/A 14.0 ppb (13) N/A N/A 3.0 ppb (2) 0.26 ppb (3) 28.0 μg/m3 (25) 1.0 μg/m3 (4) 25.0
 
Jan. 20, 2020, 2 p.m. 16.8 ppb (16) 2.9 ppb (3) N/A 14.0 ppb (13) N/A N/A 4.0 ppb (3) 0.22 ppb (2) 12.0 μg/m3 (11) 1.0 μg/m3 (4) 16.0
 
Jan. 20, 2020, 1 p.m. 11.6 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A N/A 8.0 ppb (6) 0.21 ppb (2) 12.0 μg/m3 (11) 2.0 μg/m3 (8) 11.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -2.0 μg/m3 (0) 2.0
 
Jan. 20, 2020, 11 a.m. 4.3 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 11.0 ppb (8) 0.1 ppb (1) 0.0 μg/m3 (0) -1.0 μg/m3 (0) 8.0
 
Jan. 20, 2020, 10 a.m. 4.7 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 11.0 ppb (8) 0.13 ppb (1) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 8.0
 
Jan. 20, 2020, 9 a.m. 3.1 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) 0.11 ppb (1) 0.0 μg/m3 (0) -1.0 μg/m3 (0) 12.0
 
Jan. 20, 2020, 8 a.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) 0.1 ppb (1) 2.0 μg/m3 (2) 1.0 μg/m3 (4) 12.0
 
Jan. 20, 2020, 7 a.m. 5.2 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) 0.14 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 6 a.m. 6.7 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.19 ppb (2) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 5 a.m. 12.8 ppb (12) 3.3 ppb (3) N/A 10.0 ppb (9) N/A N/A 6.0 ppb (5) 0.31 ppb (3) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 4 a.m. 12.2 ppb (11) 3.3 ppb (3) N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) 0.28 ppb (3) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 3 a.m. 32.8 ppb (30) 14.2 ppb (13) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.72 ppb (8) 44.0 μg/m3 (40) 25.0 μg/m3 (78) 78.0
 
Jan. 20, 2020, 2 a.m. 49.0 ppb (45) 25.3 ppb (23) N/A 24.0 ppb (22) N/A N/A 2.0 ppb (2) 0.98 ppb (11) 72.0 μg/m3 (58) 35.0 μg/m3 (99) 99.0
 
Jan. 20, 2020, 1 a.m. 39.9 ppb (37) 16.1 ppb (15) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.68 ppb (8) 50.0 μg/m3 (45) 15.0 μg/m3 (56) 56.0
 
Jan. 20, 2020, midnight 15.7 ppb (15) 2.5 ppb (2) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) 0.41 ppb (5) 32.0 μg/m3 (29) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 11 p.m. 13.1 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.32 ppb (4) 23.0 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 10 p.m. 11.1 ppb (10) 3.1 ppb (3) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.27 ppb (3) 10.0 μg/m3 (9) 0.0 μg/m3 (0) 17.0
 
Jan. 19, 2020, 9 p.m. 6.5 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) 0.17 ppb (2) 9.0 μg/m3 (8) 1.0 μg/m3 (4) 17.0
 
Jan. 19, 2020, 8 p.m. 7.7 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.18 ppb (2) 9.0 μg/m3 (8) 0.0 μg/m3 (0) 15.0
 
Jan. 19, 2020, 7 p.m. 5.6 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.14 ppb (2) 4.0 μg/m3 (4) N/A 17.0
 
Jan. 19, 2020, 6 p.m. 4.9 ppb (5) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.16 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 16.0
 
Jan. 19, 2020, 5 p.m. 5.4 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.12 ppb (1) 3.0 μg/m3 (3) 2.0 μg/m3 (8) 15.0
 
Jan. 19, 2020, 4 p.m. 4.3 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) 0.12 ppb (1) 1.0 μg/m3 (1) 2.0 μg/m3 (8) 14.0
 
Jan. 19, 2020, 3 p.m. 3.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.1 ppb (1) 1.0 μg/m3 (1) 3.0 μg/m3 (12) 15.0
 
Jan. 19, 2020, 2 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) 0.1 ppb (1) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 15.0
 
Jan. 19, 2020, 1 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (14) 0.11 ppb (1) 2.0 μg/m3 (2) 1.0 μg/m3 (4) 14.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.0 μg/m3 (4) 4.0
 
Jan. 19, 2020, 11 a.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 13.0
 
Jan. 19, 2020, 10 a.m. 3.3 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 13.0
 
Jan. 19, 2020, 9 a.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 13.0
 
Jan. 19, 2020, 8 a.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) 0.11 ppb (1) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 12.0
 
Jan. 19, 2020, 7 a.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.13 ppb (1) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 9.0
 
Jan. 19, 2020, 6 a.m. 5.1 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) 0.16 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2020, 5 a.m. 7.1 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 13.0 ppb (10) 0.22 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, 4 a.m. 6.5 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.21 ppb (2) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 3 a.m. 21.2 ppb (20) 3.6 ppb (3) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (5) 0.55 ppb (6) 48.0 μg/m3 (44) 25.0 μg/m3 (78) 78.0
 
Jan. 19, 2020, 2 a.m. 13.3 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.29 ppb (3) 24.0 μg/m3 (22) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 1 a.m. 8.4 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) 0.22 ppb (2) 27.0 μg/m3 (25) 3.0 μg/m3 (12) 25.0
 
Jan. 19, 2020, midnight 10.2 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.23 ppb (3) 25.0 μg/m3 (23) 3.0 μg/m3 (12) 23.0
 
Jan. 18, 2020, 11 p.m. 8.7 ppb (8) 3.6 ppb (3) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.19 ppb (2) 21.0 μg/m3 (19) 1.0 μg/m3 (4) 22.0