AQSQID: 060831008

Site Name: Santa Maria - Broadway

Location: Santa Maria (S McClelland St), CA

Reporting: True, Located: True

Current AQI: 30.0

Santa Maria (S McClelland St) CA, US: 34.9481, -120.4344

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 22, 2019, 7 p.m. 7.1 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.15 ppb (2) 33.0 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
Sept. 22, 2019, 6 p.m. 10.1 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) 0.17 ppb (2) 59.0 μg/m3 (52) 5.0 μg/m3 (21) 52.0
 
Sept. 22, 2019, 5 p.m. 11.0 ppb (10) 3.3 ppb (3) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.23 ppb (3) 55.0 μg/m3 (50) 7.0 μg/m3 (29) 50.0
 
Sept. 22, 2019, 4 p.m. 14.3 ppb (13) 4.8 ppb (4) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.29 ppb (3) 51.0 μg/m3 (46) 9.0 μg/m3 (38) 46.0
 
Sept. 22, 2019, 3 p.m. 11.6 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.23 ppb (3) 37.0 μg/m3 (34) 4.0 μg/m3 (17) 34.0
 
Sept. 22, 2019, 2 p.m. 11.2 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 29.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
Sept. 22, 2019, 1 p.m. 7.6 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.16 ppb (2) 27.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Sept. 22, 2019, noon 7.8 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.14 ppb (2) 26.0 μg/m3 (24) 3.0 μg/m3 (12) 24.0
 
Sept. 22, 2019, 11 a.m. 7.6 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.14 ppb (2) 25.0 μg/m3 (23) 2.0 μg/m3 (8) 23.0
 
Sept. 22, 2019, 10 a.m. 7.8 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 10.0 ppb (8) 0.14 ppb (2) 24.0 μg/m3 (22) 2.0 μg/m3 (8) 22.0
 
Sept. 22, 2019, 9 a.m. 7.0 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.15 ppb (2) 25.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
Sept. 22, 2019, 8 a.m. 13.7 ppb (13) 1.5 ppb (1) N/A 12.0 ppb (11) N/A N/A 9.0 ppb (7) 0.22 ppb (2) 32.0 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
Sept. 22, 2019, 7 a.m. 17.1 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A N/A 4.0 ppb (3) 0.26 ppb (3) 36.0 μg/m3 (33) 7.0 μg/m3 (29) 33.0
 
Sept. 22, 2019, 6 a.m. 12.8 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 12.0 ppb (9) 0.22 ppb (2) 33.0 μg/m3 (30) 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2019, 5 a.m. 10.4 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 32.0 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2019, 4 a.m. 11.7 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.22 ppb (2) 44.0 μg/m3 (40) 9.0 μg/m3 (38) 40.0
 
Sept. 22, 2019, 3 a.m. 13.8 ppb (13) 2.9 ppb (3) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.25 ppb (3) 35.0 μg/m3 (32) 13.0 μg/m3 (52) 52.0
 
Sept. 22, 2019, 2 a.m. 10.7 ppb (10) 2.2 ppb (2) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.31 ppb (3) 37.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2019, 1 a.m. 8.6 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 36.0 ppb (28) 0.26 ppb (3) 29.0 μg/m3 (26) 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2019, midnight 7.6 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.17 ppb (2) 32.0 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 11 p.m. 6.7 ppb (6) 2.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.14 ppb (2) 32.0 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2019, 10 p.m. 7.9 ppb (7) 3.1 ppb (3) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.19 ppb (2) 42.0 μg/m3 (38) 5.0 μg/m3 (21) 38.0
 
Sept. 21, 2019, 9 p.m. 7.8 ppb (7) 2.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.13 ppb (1) 58.0 μg/m3 (52) 4.0 μg/m3 (17) 52.0
 
Sept. 21, 2019, 8 p.m. 8.5 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.13 ppb (1) 67.0 μg/m3 (56) 4.0 μg/m3 (17) 56.0
 
Sept. 21, 2019, 7 p.m. 7.3 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (35) 0.13 ppb (1) 65.0 μg/m3 (55) 3.0 μg/m3 (12) 55.0
 
Sept. 21, 2019, 6 p.m. 10.6 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.14 ppb (2) 51.0 μg/m3 (46) 3.0 μg/m3 (12) 46.0
 
Sept. 21, 2019, 5 p.m. 15.9 ppb (15) 4.8 ppb (4) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) 0.25 ppb (3) 48.0 μg/m3 (44) 5.0 μg/m3 (21) 44.0
 
Sept. 21, 2019, 4 p.m. 29.6 ppb (27) 12.7 ppb (12) N/A 17.0 ppb (16) N/A N/A 15.0 ppb (12) 0.34 ppb (4) 60.0 μg/m3 (52) 7.0 μg/m3 (29) 52.0
 
Sept. 21, 2019, 3 p.m. 32.4 ppb (30) 16.2 ppb (15) N/A 16.0 ppb (15) N/A N/A 8.0 ppb (6) 0.24 ppb (3) 52.0 μg/m3 (47) 7.0 μg/m3 (29) 47.0
 
Sept. 21, 2019, 2 p.m. 18.9 ppb (18) 6.1 ppb (6) N/A 13.0 ppb (12) N/A N/A 6.0 ppb (5) 0.22 ppb (2) 42.0 μg/m3 (38) 1.0 μg/m3 (4) 38.0
 
Sept. 21, 2019, 1 p.m. 17.6 ppb (16) 3.1 ppb (3) N/A 15.0 ppb (14) N/A N/A 3.0 ppb (2) 0.19 ppb (2) 26.0 μg/m3 (24) 1.0 μg/m3 (4) 24.0
 
Sept. 21, 2019, noon 15.4 ppb (14) 2.1 ppb (2) N/A 13.0 ppb (12) N/A N/A 3.0 ppb (2) 0.16 ppb (2) 23.0 μg/m3 (21) 1.0 μg/m3 (4) 21.0
 
Sept. 21, 2019, 11 a.m. 12.7 ppb (12) 1.7 ppb (2) N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) 0.17 ppb (2) 18.0 μg/m3 (16) 2.0 μg/m3 (8) 16.0
 
Sept. 21, 2019, 10 a.m. 14.3 ppb (13) 3.3 ppb (3) N/A 11.0 ppb (10) N/A N/A 3.0 ppb (2) 0.17 ppb (2) 24.0 μg/m3 (22) 3.0 μg/m3 (12) 22.0
 
Sept. 21, 2019, 9 a.m. 11.6 ppb (11) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 3.0 ppb (2) 0.16 ppb (2) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
Sept. 21, 2019, 8 a.m. 13.6 ppb (13) 1.5 ppb (1) N/A 12.0 ppb (11) N/A N/A 5.0 ppb (4) 0.16 ppb (2) 23.0 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 7 a.m. 15.0 ppb (14) 1.3 ppb (1) N/A 14.0 ppb (13) N/A N/A 4.0 ppb (3) 0.17 ppb (2) 33.0 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
Sept. 21, 2019, 6 a.m. 15.0 ppb (14) 1.8 ppb (2) N/A 13.0 ppb (12) N/A N/A 7.0 ppb (5) 0.19 ppb (2) 42.0 μg/m3 (38) 6.0 μg/m3 (25) 38.0
 
Sept. 21, 2019, 5 a.m. 19.2 ppb (18) 2.5 ppb (2) N/A 17.0 ppb (16) N/A N/A 8.0 ppb (6) 0.4 ppb (4) 61.0 μg/m3 (53) 7.0 μg/m3 (29) 53.0
 
Sept. 21, 2019, 4 a.m. 18.5 ppb (17) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (9) 0.34 ppb (4) 40.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2019, 3 a.m. 15.9 ppb (15) 2.9 ppb (3) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.47 ppb (5) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 2 a.m. 10.8 ppb (10) 2.1 ppb (2) N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) 0.85 ppb (9) 35.0 μg/m3 (32) 3.0 μg/m3 (12) 32.0
 
Sept. 21, 2019, 1 a.m. 8.6 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.91 ppb (10) 33.0 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
Sept. 21, 2019, midnight 8.0 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.21 ppb (2) 53.0 μg/m3 (48) 5.0 μg/m3 (21) 48.0
 
Sept. 20, 2019, 11 p.m. 8.4 ppb (8) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.16 ppb (2) 100.0 μg/m3 (72) 3.0 μg/m3 (12) 72.0
 
Sept. 20, 2019, 10 p.m. 6.6 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.15 ppb (2) 65.0 μg/m3 (55) 4.0 μg/m3 (17) 55.0
 
Sept. 20, 2019, 9 p.m. 6.8 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 67.0 μg/m3 (56) 5.0 μg/m3 (21) 56.0
 
Sept. 20, 2019, 8 p.m. 7.2 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.15 ppb (2) 95.0 μg/m3 (70) 2.0 μg/m3 (8) 70.0
 
Sept. 20, 2019, 7 p.m. 7.5 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.16 ppb (2) 65.0 μg/m3 (55) 2.0 μg/m3 (8) 55.0
 
Sept. 20, 2019, 6 p.m. 6.7 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.18 ppb (2) 15.0 μg/m3 (14) 1.0 μg/m3 (4) 26.0
 
Sept. 20, 2019, 5 p.m. 4.3 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.14 ppb (2) 22.0 μg/m3 (20) 3.0 μg/m3 (12) 26.0
 
Sept. 20, 2019, 4 p.m. 7.8 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.16 ppb (2) 39.0 μg/m3 (35) 4.0 μg/m3 (17) 35.0
 
Sept. 20, 2019, 3 p.m. 38.2 ppb (35) 16.1 ppb (15) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) 0.39 ppb (4) 56.0 μg/m3 (50) 6.0 μg/m3 (25) 50.0
 
Sept. 20, 2019, 2 p.m. 55.2 ppb (51) 36.2 ppb (34) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) 0.6 ppb (7) 53.0 μg/m3 (48) 7.0 μg/m3 (29) 51.0
 
Sept. 20, 2019, 1 p.m. 50.4 ppb (47) 33.3 ppb (31) N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) 0.62 ppb (7) 44.0 μg/m3 (40) 6.0 μg/m3 (25) 47.0
 
Sept. 20, 2019, noon 27.5 ppb (25) 14.0 ppb (13) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) 0.4 ppb (4) 31.0 μg/m3 (28) 4.0 μg/m3 (17) 28.0
 
Sept. 20, 2019, 11 a.m. 13.3 ppb (12) 4.4 ppb (4) N/A 9.0 ppb (8) N/A N/A 1.0 ppb (1) 0.15 ppb (2) 21.0 μg/m3 (19) 2.0 μg/m3 (8) 19.0
 
Sept. 20, 2019, 10 a.m. 7.5 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 2.0 ppb (2) 0.13 ppb (1) 22.0 μg/m3 (20) 1.0 μg/m3 (4) 20.0
 
Sept. 20, 2019, 9 a.m. 8.9 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 3.0 ppb (2) 0.14 ppb (2) 21.0 μg/m3 (19) 2.0 μg/m3 (8) 19.0
 
Sept. 20, 2019, 8 a.m. 11.4 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 3.0 ppb (2) 0.16 ppb (2) 20.0 μg/m3 (18) 1.0 μg/m3 (4) 18.0
 
Sept. 20, 2019, 7 a.m. 11.4 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 6.0 ppb (5) 0.17 ppb (2) 25.0 μg/m3 (23) 2.0 μg/m3 (8) 23.0
 
Sept. 20, 2019, 6 a.m. 11.8 ppb (11) 1.7 ppb (2) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) 0.16 ppb (2) 29.0 μg/m3 (26) 3.0 μg/m3 (12) 26.0
 
Sept. 20, 2019, 5 a.m. 12.9 ppb (12) 1.5 ppb (1) N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.16 ppb (2) 30.0 μg/m3 (27) 4.0 μg/m3 (17) 27.0
 
Sept. 20, 2019, 4 a.m. 10.9 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.17 ppb (2) 26.0 μg/m3 (24) 5.0 μg/m3 (21) 24.0
 
Sept. 20, 2019, 3 a.m. 8.4 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.15 ppb (2) 29.0 μg/m3 (26) 4.0 μg/m3 (17) 26.0
 
Sept. 20, 2019, 2 a.m. 7.4 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.14 ppb (2) 27.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Sept. 20, 2019, 1 a.m. 6.2 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.14 ppb (2) 36.0 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
Sept. 20, 2019, midnight 5.3 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.14 ppb (2) 64.0 μg/m3 (54) 6.0 μg/m3 (25) 54.0
 
Sept. 19, 2019, 11 p.m. 6.2 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.14 ppb (2) 132.0 μg/m3 (88) 9.0 μg/m3 (38) 88.0
 
Sept. 19, 2019, 10 p.m. 6.8 ppb (6) 3.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.14 ppb (2) 164.0 μg/m3 (104) 9.0 μg/m3 (38) 104.0
 
Sept. 19, 2019, 9 p.m. 5.3 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.13 ppb (1) 96.0 μg/m3 (70) 7.0 μg/m3 (29) 70.0
 
Sept. 19, 2019, 8 p.m. 4.4 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.11 ppb (1) 88.0 μg/m3 (66) 5.0 μg/m3 (21) 66.0
 
Sept. 19, 2019, 7 p.m. 4.6 ppb (4) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.12 ppb (1) 44.0 μg/m3 (40) 0.0 μg/m3 (0) 40.0
 
Sept. 19, 2019, 6 p.m. 6.2 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.13 ppb (1) 36.0 μg/m3 (33) 2.0 μg/m3 (8) 33.0
 
Sept. 19, 2019, 5 p.m. 7.4 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.13 ppb (1) 24.0 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
Sept. 19, 2019, 4 p.m. 8.4 ppb (8) 3.9 ppb (4) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) 0.14 ppb (2) 22.0 μg/m3 (20) 2.0 μg/m3 (8) 20.0
 
Sept. 19, 2019, 3 p.m. 10.2 ppb (9) 4.7 ppb (4) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) 0.17 ppb (2) 13.0 μg/m3 (12) 2.0 μg/m3 (8) 12.0
 
Sept. 19, 2019, 2 p.m. 12.0 ppb (11) 4.7 ppb (4) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.15 ppb (2) 15.0 μg/m3 (14) 2.0 μg/m3 (8) 14.0
 
Sept. 19, 2019, 1 p.m. 11.4 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.26 ppb (3) 15.0 μg/m3 (14) 1.0 μg/m3 (4) 14.0
 
Sept. 19, 2019, noon 5.4 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.13 ppb (1) 16.0 μg/m3 (15) 1.0 μg/m3 (4) 16.0
 
Sept. 19, 2019, 11 a.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.08 ppb (1) 10.0 μg/m3 (9) 0.0 μg/m3 (0) 17.0
 
Sept. 19, 2019, 10 a.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.08 ppb (1) 10.0 μg/m3 (9) 0.0 μg/m3 (0) 17.0
 
Sept. 19, 2019, 9 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) 0.06 ppb (1) 11.0 μg/m3 (10) 1.0 μg/m3 (4) 16.0
 
Sept. 19, 2019, 8 a.m. 2.0 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) 0.07 ppb (1) 10.0 μg/m3 (9) 2.0 μg/m3 (8) 15.0
 
Sept. 19, 2019, 7 a.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 0.09 ppb (1) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 6 a.m. 3.4 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 13.0
 
Sept. 19, 2019, 5 a.m. 4.1 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 7.0 μg/m3 (6) 0.0 μg/m3 (0) 13.0
 
Sept. 19, 2019, 4 a.m. 5.7 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) 0.13 ppb (1) 10.0 μg/m3 (9) 2.0 μg/m3 (8) 14.0
 
Sept. 19, 2019, 3 a.m. 6.2 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.12 ppb (1) 12.0 μg/m3 (11) 2.0 μg/m3 (8) 15.0
 
Sept. 19, 2019, 2 a.m. 7.7 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.13 ppb (1) 18.0 μg/m3 (16) -1.0 μg/m3 (0) 16.0
 
Sept. 19, 2019, 1 a.m. 5.6 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.12 ppb (1) 17.0 μg/m3 (15) 0.0 μg/m3 (0) 15.0
 
Sept. 19, 2019, midnight 5.6 ppb (5) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.11 ppb (1) 45.0 μg/m3 (41) 4.0 μg/m3 (17) 41.0
 
Sept. 18, 2019, 11 p.m. 7.1 ppb (7) 3.3 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.12 ppb (1) 83.0 μg/m3 (64) 5.0 μg/m3 (21) 64.0
 
Sept. 18, 2019, 10 p.m. 6.6 ppb (6) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.11 ppb (1) 76.0 μg/m3 (60) 3.0 μg/m3 (12) 60.0
 
Sept. 18, 2019, 9 p.m. 6.6 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.13 ppb (1) 42.0 μg/m3 (38) 2.0 μg/m3 (8) 38.0
 
Sept. 18, 2019, 8 p.m. 7.8 ppb (7) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.13 ppb (1) 69.0 μg/m3 (57) 5.0 μg/m3 (21) 57.0
 
Sept. 18, 2019, 7 p.m. 8.4 ppb (8) 3.1 ppb (3) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 55.0 μg/m3 (50) 7.0 μg/m3 (29) 50.0
 
Sept. 18, 2019, 6 p.m. 11.9 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.16 ppb (2) 69.0 μg/m3 (57) 5.0 μg/m3 (21) 57.0
 
Sept. 18, 2019, 5 p.m. 11.8 ppb (11) 4.3 ppb (4) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.17 ppb (2) 48.0 μg/m3 (44) 4.0 μg/m3 (17) 44.0
 
Sept. 18, 2019, 4 p.m. 18.9 ppb (18) 8.3 ppb (8) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.22 ppb (2) 48.0 μg/m3 (44) 6.0 μg/m3 (25) 44.0
 
Sept. 18, 2019, 3 p.m. 26.5 ppb (25) 13.8 ppb (13) N/A 13.0 ppb (12) N/A N/A 7.0 ppb (5) 0.26 ppb (3) 53.0 μg/m3 (48) 3.0 μg/m3 (12) 48.0
 
Sept. 18, 2019, 2 p.m. 21.2 ppb (20) 9.2 ppb (9) N/A 12.0 ppb (11) N/A N/A 4.0 ppb (3) 0.23 ppb (3) 59.0 μg/m3 (52) 6.0 μg/m3 (25) 52.0
 
Sept. 18, 2019, 1 p.m. 20.5 ppb (19) 8.1 ppb (8) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) 0.23 ppb (3) 31.0 μg/m3 (28) 3.0 μg/m3 (12) 28.0
 
Sept. 18, 2019, noon 11.8 ppb (11) 2.5 ppb (2) N/A 9.0 ppb (8) N/A N/A 3.0 ppb (2) 0.18 ppb (2) 26.0 μg/m3 (24) 0.0 μg/m3 (0) 24.0
 
Sept. 18, 2019, 11 a.m. 6.8 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) 0.14 ppb (2) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 13.0
 
Sept. 18, 2019, 10 a.m. 6.1 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) 0.14 ppb (2) 20.0 μg/m3 (18) -1.0 μg/m3 (0) 18.0
 
Sept. 18, 2019, 9 a.m. 7.5 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 7.0 ppb (5) 0.14 ppb (2) 17.0 μg/m3 (15) -2.0 μg/m3 (0) 15.0
 
Sept. 18, 2019, 8 a.m. 6.3 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 9.0 ppb (7) 0.22 ppb (2) 27.0 μg/m3 (25) 2.0 μg/m3 (8) 25.0
 
Sept. 18, 2019, 7 a.m. 9.7 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 6.0 ppb (5) 0.16 ppb (2) 36.0 μg/m3 (33) 3.0 μg/m3 (12) 33.0
 
Sept. 18, 2019, 6 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 10.0 ppb (8) 0.16 ppb (2) 30.0 μg/m3 (27) 0.0 μg/m3 (0) 27.0
 
Sept. 18, 2019, 5 a.m. 5.1 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) 0.14 ppb (2) 20.0 μg/m3 (18) 1.0 μg/m3 (4) 18.0
 
Sept. 18, 2019, 4 a.m. 6.5 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.15 ppb (2) 26.0 μg/m3 (24) 3.0 μg/m3 (12) 24.0
 
Sept. 18, 2019, 3 a.m. 5.6 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.13 ppb (1) 26.0 μg/m3 (24) 3.0 μg/m3 (12) 24.0
 
Sept. 18, 2019, 2 a.m. 7.2 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.15 ppb (2) 31.0 μg/m3 (28) 3.0 μg/m3 (12) 28.0
 
Sept. 18, 2019, 1 a.m. 7.4 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.15 ppb (2) 38.0 μg/m3 (35) 4.0 μg/m3 (17) 35.0
 
Sept. 18, 2019, midnight 7.2 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.15 ppb (2) 63.0 μg/m3 (54) 7.0 μg/m3 (29) 54.0
 
Sept. 17, 2019, 11 p.m. 5.9 ppb (5) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.13 ppb (1) 126.0 μg/m3 (86) 8.0 μg/m3 (33) 86.0
 
Sept. 17, 2019, 10 p.m. 6.7 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.14 ppb (2) 187.0 μg/m3 (116) 8.0 μg/m3 (33) 116.0
 
Sept. 17, 2019, 9 p.m. 8.8 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.15 ppb (2) 169.0 μg/m3 (107) 10.0 μg/m3 (42) 107.0
 
Sept. 17, 2019, 8 p.m. 6.8 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.14 ppb (2) 174.0 μg/m3 (110) 7.0 μg/m3 (29) 110.0
 
Sept. 17, 2019, 7 p.m. 6.3 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.15 ppb (2) 22.0 μg/m3 (20) 3.0 μg/m3 (12) 26.0
 
Sept. 17, 2019, 6 p.m. 4.4 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.13 ppb (1) 29.0 μg/m3 (26) 3.0 μg/m3 (12) 26.0
 
Sept. 17, 2019, 5 p.m. 8.1 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.14 ppb (2) 31.0 μg/m3 (28) 3.0 μg/m3 (12) 28.0
 
Sept. 17, 2019, 4 p.m. 16.3 ppb (15) 5.7 ppb (5) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.18 ppb (2) 38.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
Sept. 17, 2019, 3 p.m. 36.5 ppb (34) 19.0 ppb (18) N/A 17.0 ppb (16) N/A N/A 7.0 ppb (5) 0.44 ppb (5) 68.0 μg/m3 (56) 8.0 μg/m3 (33) 56.0
 
Sept. 17, 2019, 2 p.m. 37.4 ppb (35) 21.2 ppb (20) N/A 16.0 ppb (15) N/A N/A 2.0 ppb (2) 0.42 ppb (5) 47.0 μg/m3 (43) 6.0 μg/m3 (25) 43.0
 
Sept. 17, 2019, 1 p.m. 23.3 ppb (22) 10.4 ppb (10) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) 0.3 ppb (3) 33.0 μg/m3 (30) 2.0 μg/m3 (8) 30.0
 
Sept. 17, 2019, noon 10.2 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 6.0 ppb (5) 0.17 ppb (2) 17.0 μg/m3 (15) 0.0 μg/m3 (0) 15.0
 
Sept. 17, 2019, 11 a.m. 5.8 ppb (5) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) 0.12 ppb (1) 10.0 μg/m3 (9) 2.0 μg/m3 (8) 9.0
 
Sept. 17, 2019, 10 a.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 19.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 9 a.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.12 ppb (1) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 8 a.m. 4.5 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.11 ppb (1) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 18.0
 
Sept. 17, 2019, 7 a.m. 4.8 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.12 ppb (1) 12.0 μg/m3 (11) -1.0 μg/m3 (0) 18.0
 
Sept. 17, 2019, 6 a.m. 7.3 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.12 ppb (1) 18.0 μg/m3 (16) -1.0 μg/m3 (0) 16.0
 
Sept. 17, 2019, 5 a.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.11 ppb (1) 16.0 μg/m3 (15) 1.0 μg/m3 (4) 19.0
 
Sept. 17, 2019, 4 a.m. 4.8 ppb (4) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.11 ppb (1) 13.0 μg/m3 (12) 1.0 μg/m3 (4) 19.0
 
Sept. 17, 2019, 3 a.m. 5.2 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.15 ppb (2) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 20.0
 
Sept. 17, 2019, 2 a.m. 5.0 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.13 ppb (1) 12.0 μg/m3 (11) 1.0 μg/m3 (4) 20.0
 
Sept. 17, 2019, 1 a.m. 6.4 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.13 ppb (1) 27.0 μg/m3 (25) -1.0 μg/m3 (0) 25.0
 
Sept. 17, 2019, midnight 5.7 ppb (5) 2.8 ppb (3) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.12 ppb (1) 25.0 μg/m3 (23) -1.0 μg/m3 (0) 23.0
 
Sept. 16, 2019, 11 p.m. 5.4 ppb (5) 2.9 ppb (3) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.1 ppb (1) 19.0 μg/m3 (17) 0.0 μg/m3 (0) 18.0
 
Sept. 16, 2019, 10 p.m. 6.7 ppb (6) 3.5 ppb (3) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.11 ppb (1) 31.0 μg/m3 (28) -1.0 μg/m3 (0) 28.0
 
Sept. 16, 2019, 9 p.m. 5.6 ppb (5) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.11 ppb (1) 39.0 μg/m3 (35) -1.0 μg/m3 (0) 35.0
 
Sept. 16, 2019, 8 p.m. 5.9 ppb (5) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.11 ppb (1) 37.0 μg/m3 (34) 0.0 μg/m3 (0) 34.0
 
Sept. 16, 2019, 7 p.m. 6.5 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.12 ppb (1) 27.0 μg/m3 (25) 0.0 μg/m3 (0) 25.0
 
Sept. 16, 2019, 6 p.m. 6.8 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.13 ppb (1) 19.0 μg/m3 (17) 1.0 μg/m3 (4) 20.0
 
Sept. 16, 2019, 5 p.m. 4.3 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) 0.11 ppb (1) 16.0 μg/m3 (15) 1.0 μg/m3 (4) 18.0
 
Sept. 16, 2019, 4 p.m. 4.0 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.11 ppb (1) 20.0 μg/m3 (18) 2.0 μg/m3 (8) 18.0
 
Sept. 16, 2019, 3 p.m. 4.7 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.12 ppb (1) 15.0 μg/m3 (14) 1.0 μg/m3 (4) 16.0
 
Sept. 16, 2019, 2 p.m. 6.7 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.13 ppb (1) 14.0 μg/m3 (13) -1.0 μg/m3 (0) 14.0
 
Sept. 16, 2019, 1 p.m. 5.4 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) 0.13 ppb (1) 17.0 μg/m3 (15) 1.0 μg/m3 (4) 15.0
 
Sept. 16, 2019, noon 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.11 ppb (1) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 18.0
 
Sept. 16, 2019, 11 a.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 20.0
 
Sept. 16, 2019, 10 a.m. 1.7 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.11 ppb (1) 11.0 μg/m3 (10) 1.0 μg/m3 (4) 21.0
 
Sept. 16, 2019, 9 a.m. 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 12.0 μg/m3 (11) 0.0 μg/m3 (0) 22.0
 
Sept. 16, 2019, 8 a.m. 1.4 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) 0.1 ppb (1) 16.0 μg/m3 (15) 1.0 μg/m3 (4) 22.0
 
Sept. 16, 2019, 7 a.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) 0.11 ppb (1) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 22.0
 
Sept. 16, 2019, 6 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.1 ppb (1) 13.0 μg/m3 (12) 0.0 μg/m3 (0) 24.0
 
Sept. 16, 2019, 5 a.m. 2.1 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.11 ppb (1) 13.0 μg/m3 (12) 1.0 μg/m3 (4) 24.0
 
Sept. 16, 2019, 4 a.m. 3.1 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) 0.12 ppb (1) 18.0 μg/m3 (16) 1.0 μg/m3 (4) 22.0
 
Sept. 16, 2019, 3 a.m. 7.1 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.17 ppb (2) 19.0 μg/m3 (17) 1.0 μg/m3 (4) 19.0
 
Sept. 16, 2019, 2 a.m. 4.4 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.15 ppb (2) 20.0 μg/m3 (18) 3.0 μg/m3 (12) 19.0
 
Sept. 16, 2019, 1 a.m. 5.1 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.16 ppb (2) 18.0 μg/m3 (16) 3.0 μg/m3 (12) 19.0
 
Sept. 16, 2019, midnight 4.8 ppb (4) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.14 ppb (2) 20.0 μg/m3 (18) 1.0 μg/m3 (4) 19.0
 
Sept. 15, 2019, 11 p.m. 5.5 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.14 ppb (2) 19.0 μg/m3 (17) 2.0 μg/m3 (8) 20.0
 
Sept. 15, 2019, 10 p.m. 5.7 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.13 ppb (1) 18.0 μg/m3 (16) 1.0 μg/m3 (4) 20.0
 
Sept. 15, 2019, 9 p.m. 5.5 ppb (5) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.14 ppb (2) 16.0 μg/m3 (15) 0.0 μg/m3 (0) 19.0
 
Sept. 15, 2019, 8 p.m. 6.1 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.13 ppb (1) 19.0 μg/m3 (17) -2.0 μg/m3 (0) 19.0