AQSQID: 060371201

Site Name: Reseda

Location: LA, CA

Reporting: True, Located: True

Current AQI: 63.0

LA CA, US: 34.1992, -118.5331

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 22, 2019, 9 p.m. 5.8 ppb (5) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 81.0 ppb (63) 0.26 ppb (3) N/A 15.2 μg/m3 (57) 63.0
 
July 22, 2019, 8 p.m. 7.2 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 72.0 ppb (56) 0.29 ppb (3) N/A 16.1 μg/m3 (59) 59.0
 
July 22, 2019, 7 p.m. 9.5 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (7) N/A N/A 67.0 ppb (52) 0.34 ppb (4) N/A 15.9 μg/m3 (58) 58.0
 
July 22, 2019, 6 p.m. 8.5 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 57.0 ppb (44) 0.28 ppb (3) N/A 19.1 μg/m3 (65) 65.0
 
July 22, 2019, 5 p.m. 12.2 ppb (11) 3.9 ppb (4) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.31 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
July 22, 2019, 4 p.m. 14.6 ppb (14) 4.6 ppb (4) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.31 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
July 22, 2019, 3 p.m. 16.9 ppb (16) 4.2 ppb (4) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.33 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
July 22, 2019, 2 p.m. 20.1 ppb (19) 5.1 ppb (5) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.37 ppb (4) N/A 10.4 μg/m3 (43) 43.0
 
July 22, 2019, 1 p.m. 20.3 ppb (19) 4.6 ppb (4) N/A 16.0 ppb (15) N/A N/A 10.0 ppb (8) 0.35 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
July 22, 2019, noon 14.5 ppb (13) 1.7 ppb (2) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.31 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
July 22, 2019, 11 a.m. 11.0 ppb (10) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.25 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
July 22, 2019, 10 a.m. 9.6 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 22, 2019, 9 a.m. 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.22 ppb (2) N/A 13.4 μg/m3 (53) 53.0
 
July 22, 2019, 8 a.m. 7.6 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.23 ppb (3) N/A 10.2 μg/m3 (42) 42.0
 
July 22, 2019, 7 a.m. 11.0 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.28 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
July 22, 2019, 6 a.m. 10.7 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 23.0 ppb (18) 0.27 ppb (3) N/A 7.8 μg/m3 (32) 32.0
 
July 22, 2019, 5 a.m. 11.3 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 28.0 ppb (22) 0.28 ppb (3) N/A 10.2 μg/m3 (42) 42.0
 
July 22, 2019, 4 a.m. 9.6 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) 0.27 ppb (3) N/A 10.5 μg/m3 (44) 44.0
 
July 22, 2019, 3 a.m. 5.4 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.22 ppb (2) N/A 8.7 μg/m3 (36) 36.0
 
July 22, 2019, 2 a.m. 4.1 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.19 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
July 22, 2019, 1 a.m. 3.3 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.19 ppb (2) N/A 9.4 μg/m3 (39) 40.0
 
July 22, 2019, midnight 3.1 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.18 ppb (2) N/A 3.8 μg/m3 (16) 36.0
 
July 21, 2019, 11 p.m. 2.7 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.15 ppb (2) N/A 3.3 μg/m3 (14) 32.0
 
July 21, 2019, 10 p.m. 2.9 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.16 ppb (2) N/A 5.6 μg/m3 (23) 32.0
 
July 21, 2019, 9 p.m. 3.2 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.17 ppb (2) N/A 4.3 μg/m3 (18) 35.0
 
July 21, 2019, 8 p.m. 3.5 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.18 ppb (2) N/A 6.6 μg/m3 (28) 38.0
 
July 21, 2019, 7 p.m. 3.8 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (44) 0.21 ppb (2) N/A 7.8 μg/m3 (32) 44.0
 
July 21, 2019, 6 p.m. 4.3 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) 0.21 ppb (2) N/A 12.4 μg/m3 (51) 51.0
 
July 21, 2019, 5 p.m. 9.2 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 50.0 ppb (38) 0.3 ppb (3) N/A 11.7 μg/m3 (49) 49.0
 
July 21, 2019, 4 p.m. 11.4 ppb (11) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.32 ppb (4) N/A 6.8 μg/m3 (28) 28.0
 
July 21, 2019, 3 p.m. 11.0 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.3 ppb (3) N/A 18.2 μg/m3 (63) 63.0
 
July 21, 2019, 2 p.m. 11.6 ppb (11) 3.8 ppb (4) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.32 ppb (4) N/A 14.1 μg/m3 (54) 54.0
 
July 21, 2019, 1 p.m. 10.7 ppb (10) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) 0.28 ppb (3) N/A 13.4 μg/m3 (53) 53.0
 
July 21, 2019, noon 9.6 ppb (9) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) 0.29 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
July 21, 2019, 11 a.m. 7.8 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.26 ppb (3) N/A 7.8 μg/m3 (32) 32.0
 
July 21, 2019, 10 a.m. 8.3 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.25 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
July 21, 2019, 9 a.m. 10.7 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.29 ppb (3) N/A 9.7 μg/m3 (40) 40.0
 
July 21, 2019, 8 a.m. 10.5 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.29 ppb (3) N/A 12.9 μg/m3 (52) 52.0
 
July 21, 2019, 7 a.m. 11.2 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.31 ppb (3) N/A 12.6 μg/m3 (51) 51.0
 
July 21, 2019, 6 a.m. 10.1 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.28 ppb (3) N/A 13.1 μg/m3 (52) 52.0
 
July 21, 2019, 5 a.m. 8.3 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.26 ppb (3) N/A 9.9 μg/m3 (41) 41.0
 
July 21, 2019, 4 a.m. 8.0 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.24 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
July 21, 2019, 3 a.m. 7.3 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (32) 0.23 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
July 21, 2019, 2 a.m. 6.7 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) 0.22 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
July 21, 2019, 1 a.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) 0.17 ppb (2) N/A 7.5 μg/m3 (31) 40.0
 
July 21, 2019, midnight 3.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 42.0
 
July 20, 2019, 11 p.m. 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) 0.18 ppb (2) N/A 5.8 μg/m3 (24) 48.0
 
July 20, 2019, 10 p.m. 3.5 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 70.0 ppb (54) 0.18 ppb (2) N/A 8.0 μg/m3 (33) 54.0
 
July 20, 2019, 9 p.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 66.0 ppb (51) 0.2 ppb (2) N/A 9.4 μg/m3 (39) 51.0
 
July 20, 2019, 8 p.m. 4.5 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (50) 0.21 ppb (2) N/A 10.9 μg/m3 (45) 50.0
 
July 20, 2019, 7 p.m. 5.9 ppb (5) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 64.0 ppb (49) 0.24 ppb (3) N/A 14.4 μg/m3 (55) 55.0
 
July 20, 2019, 6 p.m. 6.1 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) 0.22 ppb (2) N/A 18.5 μg/m3 (64) 64.0
 
July 20, 2019, 5 p.m. 7.9 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.23 ppb (3) N/A 14.4 μg/m3 (55) 55.0
 
July 20, 2019, 4 p.m. 8.7 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.23 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
July 20, 2019, 3 p.m. 8.5 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) 0.21 ppb (2) N/A 14.4 μg/m3 (55) 55.0
 
July 20, 2019, 2 p.m. 8.2 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.21 ppb (2) N/A 15.6 μg/m3 (58) 58.0
 
July 20, 2019, 1 p.m. 5.8 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.16 ppb (2) N/A 18.6 μg/m3 (64) 64.0
 
July 20, 2019, noon 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.16 ppb (2) N/A 10.9 μg/m3 (45) 45.0
 
July 20, 2019, 11 a.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.14 ppb (2) N/A 8.1 μg/m3 (34) 34.0
 
July 20, 2019, 10 a.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) 0.14 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
July 20, 2019, 9 a.m. 5.1 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.19 ppb (2) N/A 10.3 μg/m3 (43) 43.0
 
July 20, 2019, 8 a.m. 7.2 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.23 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
July 20, 2019, 7 a.m. 7.9 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) 0.23 ppb (3) N/A 10.2 μg/m3 (42) 42.0
 
July 20, 2019, 6 a.m. 7.5 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) 0.23 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
July 20, 2019, 5 a.m. 10.8 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 27.0 ppb (21) 0.28 ppb (3) N/A 11.7 μg/m3 (49) 49.0
 
July 20, 2019, 4 a.m. 6.8 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) 0.22 ppb (2) N/A 8.8 μg/m3 (37) 37.0
 
July 20, 2019, 3 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 2 a.m. 6.7 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
July 20, 2019, 1 a.m. 3.9 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.16 ppb (2) N/A 6.3 μg/m3 (26) 29.0
 
July 20, 2019, midnight 3.1 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.14 ppb (2) N/A 2.1 μg/m3 (9) 29.0
 
July 19, 2019, 11 p.m. 2.7 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.13 ppb (1) N/A 5.8 μg/m3 (24) 25.0
 
July 19, 2019, 10 p.m. 5.6 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (38) 0.19 ppb (2) N/A 10.2 μg/m3 (42) 42.0
 
July 19, 2019, 9 p.m. 7.6 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (39) 0.22 ppb (2) N/A 12.1 μg/m3 (50) 50.0
 
July 19, 2019, 8 p.m. 7.2 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (36) 0.22 ppb (2) N/A 12.4 μg/m3 (51) 51.0
 
July 19, 2019, 7 p.m. 11.8 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) 0.27 ppb (3) N/A 12.9 μg/m3 (52) 52.0
 
July 19, 2019, 6 p.m. 13.1 ppb (12) 4.3 ppb (4) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.28 ppb (3) N/A 13.8 μg/m3 (54) 54.0
 
July 19, 2019, 5 p.m. 12.1 ppb (11) 4.4 ppb (4) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.26 ppb (3) N/A 13.3 μg/m3 (53) 53.0
 
July 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.3 μg/m3 (61) 61.0
 
July 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (63) 63.0
 
July 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
July 19, 2019, 1 p.m. 9.2 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) 0.21 ppb (2) N/A 14.9 μg/m3 (56) 56.0
 
July 19, 2019, noon 6.7 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) 0.17 ppb (2) N/A 11.4 μg/m3 (48) 48.0
 
July 19, 2019, 11 a.m. 7.0 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.16 ppb (2) N/A 9.5 μg/m3 (40) 40.0
 
July 19, 2019, 10 a.m. 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.18 ppb (2) N/A 9.7 μg/m3 (40) 40.0
 
July 19, 2019, 9 a.m. 6.9 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.19 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
July 19, 2019, 8 a.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.19 ppb (2) N/A 4.8 μg/m3 (20) 20.0
 
July 19, 2019, 7 a.m. 6.7 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.19 ppb (2) N/A 6.3 μg/m3 (26) 26.0
 
July 19, 2019, 6 a.m. 6.5 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) 0.19 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
July 19, 2019, 5 a.m. 8.8 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.22 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
July 19, 2019, 4 a.m. 9.4 ppb (9) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) 0.25 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
July 19, 2019, 3 a.m. 8.6 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.26 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
July 19, 2019, 2 a.m. 6.2 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.21 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 1 a.m. 6.2 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) 0.19 ppb (2) N/A 5.8 μg/m3 (24) 31.0
 
July 19, 2019, midnight 6.3 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
July 18, 2019, 11 p.m. 5.3 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.16 ppb (2) N/A 6.3 μg/m3 (26) 26.0
 
July 18, 2019, 10 p.m. 4.4 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.17 ppb (2) N/A 9.3 μg/m3 (39) 39.0
 
July 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (47) 47.0
 
July 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
July 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.8 μg/m3 (73) 73.0
 
July 18, 2019, 6 p.m. 11.4 ppb (11) 2.9 ppb (3) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) 0.27 ppb (3) N/A 19.6 μg/m3 (66) 66.0
 
July 18, 2019, 5 p.m. 11.7 ppb (11) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A 39.0 ppb (30) 0.26 ppb (3) N/A 19.5 μg/m3 (66) 66.0
 
July 18, 2019, 4 p.m. 10.8 ppb (10) 3.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) 0.24 ppb (3) N/A 17.6 μg/m3 (62) 62.0
 
July 18, 2019, 3 p.m. 11.6 ppb (11) 3.9 ppb (4) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.25 ppb (3) N/A 16.5 μg/m3 (60) 60.0
 
July 18, 2019, 2 p.m. 10.1 ppb (9) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.22 ppb (2) N/A 15.2 μg/m3 (57) 57.0
 
July 18, 2019, 1 p.m. 9.5 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.22 ppb (2) N/A 18.1 μg/m3 (63) 63.0
 
July 18, 2019, noon 8.9 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.23 ppb (3) N/A 17.7 μg/m3 (62) 62.0
 
July 18, 2019, 11 a.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.19 ppb (2) N/A 12.6 μg/m3 (51) 51.0
 
July 18, 2019, 10 a.m. 5.5 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.18 ppb (2) N/A 18.2 μg/m3 (63) 63.0
 
July 18, 2019, 9 a.m. 6.3 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.21 ppb (2) N/A 13.4 μg/m3 (53) 53.0
 
July 18, 2019, 8 a.m. 5.4 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.19 ppb (2) N/A 11.2 μg/m3 (47) 47.0
 
July 18, 2019, 7 a.m. 6.0 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.19 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
July 18, 2019, 6 a.m. 8.6 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.22 ppb (2) N/A 13.4 μg/m3 (53) 53.0
 
July 18, 2019, 5 a.m. 10.0 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) 0.25 ppb (3) N/A 13.1 μg/m3 (52) 52.0
 
July 18, 2019, 4 a.m. 9.2 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 37.0 ppb (28) 0.21 ppb (2) N/A 10.5 μg/m3 (44) 44.0
 
July 18, 2019, 3 a.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.2 ppb (2) N/A 11.4 μg/m3 (48) 48.0
 
July 18, 2019, 2 a.m. 7.5 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 47.0 ppb (36) 0.19 ppb (2) N/A 12.1 μg/m3 (50) 50.0
 
July 18, 2019, 1 a.m. 5.9 ppb (5) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) 0.19 ppb (2) N/A 11.1 μg/m3 (46) 46.0
 
July 18, 2019, midnight 4.8 ppb (4) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 54.0 ppb (42) 0.18 ppb (2) N/A 12.8 μg/m3 (52) 52.0
 
July 17, 2019, 11 p.m. 4.6 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) 0.19 ppb (2) N/A 12.4 μg/m3 (51) 51.0
 
July 17, 2019, 10 p.m. 4.8 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) 0.18 ppb (2) N/A 11.6 μg/m3 (48) 48.0
 
July 17, 2019, 9 p.m. 6.8 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 67.0 ppb (52) 0.23 ppb (3) N/A 21.0 μg/m3 (69) 69.0
 
July 17, 2019, 8 p.m. 7.7 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 67.0 ppb (52) 0.24 ppb (3) N/A 18.6 μg/m3 (64) 64.0
 
July 17, 2019, 7 p.m. 10.1 ppb (9) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A 59.0 ppb (45) 0.27 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
July 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (68) 68.0
 
July 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.3 μg/m3 (68) 68.0
 
July 17, 2019, 4 p.m. 13.6 ppb (13) 4.3 ppb (4) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.28 ppb (3) N/A 21.8 μg/m3 (71) 71.0
 
July 17, 2019, 3 p.m. 13.3 ppb (12) 4.4 ppb (4) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) 0.28 ppb (3) N/A 18.6 μg/m3 (64) 64.0
 
July 17, 2019, 2 p.m. 11.7 ppb (11) 2.1 ppb (2) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.26 ppb (3) N/A 23.9 μg/m3 (75) 75.0
 
July 17, 2019, 1 p.m. 10.6 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.26 ppb (3) N/A 19.6 μg/m3 (66) 66.0
 
July 17, 2019, noon 8.3 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.24 ppb (3) N/A 22.0 μg/m3 (71) 71.0
 
July 17, 2019, 11 a.m. 6.9 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.21 ppb (2) N/A 20.3 μg/m3 (68) 68.0
 
July 17, 2019, 10 a.m. 8.8 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.23 ppb (3) N/A 15.9 μg/m3 (58) 58.0
 
July 17, 2019, 9 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.25 ppb (3) N/A 17.6 μg/m3 (62) 62.0
 
July 17, 2019, 8 a.m. 7.1 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 0.23 ppb (3) N/A 17.9 μg/m3 (63) 63.0
 
July 17, 2019, 7 a.m. 7.3 ppb (7) -0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 0.22 ppb (2) N/A 17.4 μg/m3 (61) 61.0
 
July 17, 2019, 6 a.m. 8.3 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) 0.24 ppb (3) N/A 15.2 μg/m3 (57) 57.0
 
July 17, 2019, 5 a.m. 8.1 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) 0.24 ppb (3) N/A 17.1 μg/m3 (61) 61.0
 
July 17, 2019, 4 a.m. 10.2 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 45.0 ppb (35) 0.26 ppb (3) N/A 18.1 μg/m3 (63) 63.0
 
July 17, 2019, 3 a.m. 9.4 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 51.0 ppb (39) 0.27 ppb (3) N/A 14.9 μg/m3 (56) 56.0
 
July 17, 2019, 2 a.m. 6.8 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 56.0 ppb (43) 0.25 ppb (3) N/A 14.6 μg/m3 (56) 56.0
 
July 17, 2019, 1 a.m. 5.3 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 61.0 ppb (47) 0.24 ppb (3) N/A 14.9 μg/m3 (56) 56.0
 
July 17, 2019, midnight 3.4 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) 0.21 ppb (2) N/A 12.8 μg/m3 (52) 52.0
 
July 16, 2019, 11 p.m. 2.3 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (52) 0.19 ppb (2) N/A 10.7 μg/m3 (45) 52.0
 
July 16, 2019, 10 p.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (50) 0.19 ppb (2) N/A 10.4 μg/m3 (43) 50.0
 
July 16, 2019, 9 p.m. 3.3 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 66.0 ppb (51) 0.2 ppb (2) N/A 10.9 μg/m3 (45) 51.0
 
July 16, 2019, 8 p.m. 3.5 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 69.0 ppb (53) 0.22 ppb (2) N/A 18.8 μg/m3 (64) 64.0
 
July 16, 2019, 7 p.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (57) 0.23 ppb (3) N/A 11.1 μg/m3 (46) 57.0
 
July 16, 2019, 6 p.m. 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 74.0 ppb (57) 0.26 ppb (3) N/A 12.9 μg/m3 (52) 57.0
 
July 16, 2019, 5 p.m. 8.7 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 70.0 ppb (54) 0.31 ppb (3) N/A 13.2 μg/m3 (53) 54.0
 
July 16, 2019, 4 p.m. 16.7 ppb (15) 2.6 ppb (2) N/A 14.0 ppb (13) N/A N/A 52.0 ppb (40) 0.43 ppb (5) N/A 21.5 μg/m3 (70) 70.0
 
July 16, 2019, 3 p.m. 20.4 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (15) N/A N/A 36.0 ppb (28) 0.47 ppb (5) N/A 22.0 μg/m3 (71) 71.0
 
July 16, 2019, 2 p.m. 31.2 ppb (29) 8.5 ppb (8) N/A 23.0 ppb (21) N/A N/A 19.0 ppb (15) 0.52 ppb (6) N/A 18.8 μg/m3 (64) 64.0
 
July 16, 2019, 1 p.m. 32.9 ppb (30) 8.6 ppb (8) N/A 24.0 ppb (22) N/A N/A 10.0 ppb (8) 0.56 ppb (6) N/A 11.9 μg/m3 (50) 50.0
 
July 16, 2019, noon 25.5 ppb (24) 2.6 ppb (2) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) 0.44 ppb (5) N/A 22.6 μg/m3 (73) 73.0
 
July 16, 2019, 11 a.m. 18.8 ppb (17) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (10) 0.37 ppb (4) N/A 13.9 μg/m3 (54) 54.0
 
July 16, 2019, 10 a.m. 16.7 ppb (15) -0.1 ppb (0) N/A 17.0 ppb (16) N/A N/A 19.0 ppb (15) 0.35 ppb (4) N/A 13.6 μg/m3 (53) 53.0
 
July 16, 2019, 9 a.m. 15.2 ppb (14) -0.3 ppb (0) N/A 16.0 ppb (15) N/A N/A 21.0 ppb (16) 0.35 ppb (4) N/A 14.6 μg/m3 (56) 56.0
 
July 16, 2019, 8 a.m. 13.2 ppb (12) -0.1 ppb (0) N/A 13.0 ppb (12) N/A N/A 28.0 ppb (22) 0.33 ppb (4) N/A 20.5 μg/m3 (68) 68.0
 
July 16, 2019, 7 a.m. 11.0 ppb (10) -0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 36.0 ppb (28) 0.31 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
July 16, 2019, 6 a.m. 9.7 ppb (9) -0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 42.0 ppb (32) 0.29 ppb (3) N/A 12.1 μg/m3 (50) 50.0
 
July 16, 2019, 5 a.m. 7.7 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 46.0 ppb (35) 0.26 ppb (3) N/A 13.4 μg/m3 (53) 53.0
 
July 16, 2019, 4 a.m. 7.9 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) 0.26 ppb (3) N/A 13.8 μg/m3 (54) 54.0
 
July 16, 2019, 3 a.m. 5.8 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 52.0 ppb (40) 0.25 ppb (3) N/A 13.8 μg/m3 (54) 54.0
 
July 16, 2019, 2 a.m. 4.7 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (44) 0.25 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
July 16, 2019, 1 a.m. 4.4 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 64.0 ppb (49) 0.24 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
July 16, 2019, midnight 4.6 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 70.0 ppb (54) 0.25 ppb (3) N/A 14.1 μg/m3 (54) 54.0
 
July 15, 2019, 11 p.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 70.0 ppb (54) 0.23 ppb (3) N/A 12.4 μg/m3 (51) 54.0
 
July 15, 2019, 10 p.m. 4.5 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (57) 0.25 ppb (3) N/A 12.6 μg/m3 (51) 57.0