AQSQID: 401091037

Site Name: North Okc

Location: Oklahoma City (Neast 140th St), OK

Reporting: True, Located: True

Current AQI: 35.0

Oklahoma City (Neast 140th St) OK, US: 35.612801, -97.472198

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 19, 2019, 11 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.4 ppb (4) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Sept. 19, 2019, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) 0.4 ppb (4) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Sept. 19, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (12) 0.4 ppb (4) 15.0 μg/m3 (14) 8.3 μg/m3 (35) 35.0
 
Sept. 19, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) 0.4 ppb (4) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Sept. 19, 2019, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) 0.4 ppb (4) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Sept. 19, 2019, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) 0.4 ppb (4) 15.0 μg/m3 (14) 8.7 μg/m3 (36) 36.0
 
Sept. 19, 2019, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) 0.4 ppb (4) 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
Sept. 19, 2019, 4 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (13) 0.4 ppb (4) 21.0 μg/m3 (19) 8.6 μg/m3 (36) 36.0
 
Sept. 19, 2019, 3 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.4 ppb (4) 20.0 μg/m3 (18) 8.5 μg/m3 (35) 35.0
 
Sept. 19, 2019, 2 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.4 ppb (4) 24.0 μg/m3 (22) 8.7 μg/m3 (36) 36.0
 
Sept. 19, 2019, 1 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.4 ppb (4) 26.0 μg/m3 (24) 8.8 μg/m3 (37) 37.0
 
Sept. 19, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.4 ppb (4) 24.0 μg/m3 (22) 8.2 μg/m3 (34) 34.0
 
Sept. 18, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.3 ppb (3) 19.0 μg/m3 (17) 7.3 μg/m3 (30) 30.0
 
Sept. 18, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.3 ppb (3) 16.0 μg/m3 (15) 7.2 μg/m3 (30) 30.0
 
Sept. 18, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.4 ppb (4) 21.0 μg/m3 (19) 7.8 μg/m3 (32) 32.0
 
Sept. 18, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.3 ppb (3) 20.0 μg/m3 (18) 6.7 μg/m3 (28) 35.0
 
Sept. 18, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.3 ppb (3) 17.0 μg/m3 (15) 6.8 μg/m3 (28) 33.0
 
Sept. 18, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.3 ppb (3) 18.0 μg/m3 (16) 7.5 μg/m3 (31) 35.0
 
Sept. 18, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.3 ppb (3) 22.0 μg/m3 (20) 7.6 μg/m3 (32) 35.0
 
Sept. 18, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.4 ppb (4) 23.0 μg/m3 (21) 8.5 μg/m3 (35) 35.0
 
Sept. 18, 2019, 3 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.4 ppb (4) 20.0 μg/m3 (18) 8.6 μg/m3 (36) 36.0
 
Sept. 18, 2019, 2 p.m. 22.0 ppb (20) 8.0 ppb (7) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 19.0 ppb (15) 0.5 ppb (6) 36.0 μg/m3 (33) 10.4 μg/m3 (43) 43.0
 
Sept. 18, 2019, 1 p.m. 27.0 ppb (25) 9.0 ppb (8) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 10.0 ppb (8) 0.6 ppb (7) 34.0 μg/m3 (31) 11.4 μg/m3 (48) 48.0
 
Sept. 18, 2019, noon 22.0 ppb (20) 4.0 ppb (4) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 6.0 ppb (5) 0.5 ppb (6) 30.0 μg/m3 (27) 11.3 μg/m3 (47) 47.0
 
Sept. 18, 2019, 11 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (11) 0.4 ppb (4) 17.0 μg/m3 (15) 8.9 μg/m3 (37) 37.0
 
Sept. 18, 2019, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.4 ppb (4) 15.0 μg/m3 (14) 8.4 μg/m3 (35) 35.0
 
Sept. 18, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) 0.4 ppb (4) 16.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
Sept. 18, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (18) 0.3 ppb (3) 17.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
Sept. 18, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.3 ppb (3) 12.0 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
Sept. 18, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) 0.4 ppb (4) 14.0 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
Sept. 18, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.4 ppb (4) 16.0 μg/m3 (15) 10.2 μg/m3 (42) 42.0
 
Sept. 18, 2019, 4 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (17) 0.4 ppb (4) 17.0 μg/m3 (15) 10.9 μg/m3 (45) 45.0
 
Sept. 18, 2019, 3 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.4 ppb (4) 18.0 μg/m3 (16) 11.1 μg/m3 (46) 46.0
 
Sept. 18, 2019, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.4 ppb (4) 20.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2019, 1 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) 0.4 ppb (4) 19.0 μg/m3 (17) 11.9 μg/m3 (50) 50.0
 
Sept. 18, 2019, midnight 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.5 ppb (6) 25.0 μg/m3 (23) 15.7 μg/m3 (58) 58.0
 
Sept. 17, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.4 ppb (4) 25.0 μg/m3 (23) 13.2 μg/m3 (53) 53.0
 
Sept. 17, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) 0.4 ppb (4) 24.0 μg/m3 (22) 13.7 μg/m3 (54) 54.0
 
Sept. 17, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (39) 0.4 ppb (4) 32.0 μg/m3 (29) 15.9 μg/m3 (58) 58.0
 
Sept. 17, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) 0.4 ppb (4) 24.0 μg/m3 (22) 16.5 μg/m3 (60) 60.0
 
Sept. 17, 2019, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) 0.4 ppb (4) 22.0 μg/m3 (20) 16.5 μg/m3 (60) 60.0
 
Sept. 17, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) 0.4 ppb (4) 29.0 μg/m3 (26) 17.7 μg/m3 (62) 62.0
 
Sept. 17, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (40) 0.4 ppb (4) 28.0 μg/m3 (25) 17.3 μg/m3 (61) 61.0
 
Sept. 17, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (40) 0.4 ppb (4) 29.0 μg/m3 (26) 17.7 μg/m3 (62) 62.0
 
Sept. 17, 2019, 3 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) 0.4 ppb (4) 30.0 μg/m3 (27) 18.6 μg/m3 (64) 64.0
 
Sept. 17, 2019, 2 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) 0.5 ppb (6) 35.0 μg/m3 (32) 18.8 μg/m3 (64) 64.0
 
Sept. 17, 2019, 1 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.5 ppb (6) 36.0 μg/m3 (33) 19.6 μg/m3 (66) 66.0
 
Sept. 17, 2019, noon 10.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (18) 0.5 ppb (6) 24.0 μg/m3 (22) 19.9 μg/m3 (67) 67.0
 
Sept. 17, 2019, 11 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.4 ppb (4) 21.0 μg/m3 (19) 19.6 μg/m3 (66) 66.0
 
Sept. 17, 2019, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) 0.4 ppb (4) 24.0 μg/m3 (22) 20.1 μg/m3 (67) 67.0
 
Sept. 17, 2019, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.4 ppb (4) 22.0 μg/m3 (20) 19.7 μg/m3 (66) 66.0
 
Sept. 17, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.4 ppb (4) 23.0 μg/m3 (21) 19.3 μg/m3 (66) 66.0
 
Sept. 17, 2019, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.4 ppb (4) 22.0 μg/m3 (20) 19.2 μg/m3 (65) 65.0
 
Sept. 17, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.4 ppb (4) 22.0 μg/m3 (20) 19.4 μg/m3 (66) 66.0
 
Sept. 17, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.4 ppb (4) 25.0 μg/m3 (23) 19.3 μg/m3 (66) 66.0
 
Sept. 17, 2019, 4 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.5 ppb (6) 27.0 μg/m3 (25) 19.8 μg/m3 (67) 67.0
 
Sept. 17, 2019, 3 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (22) 0.5 ppb (6) 26.0 μg/m3 (24) 18.9 μg/m3 (65) 65.0
 
Sept. 17, 2019, 2 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (25) 0.5 ppb (6) 23.0 μg/m3 (21) 19.1 μg/m3 (65) 65.0
 
Sept. 17, 2019, 1 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.5 ppb (6) 23.0 μg/m3 (21) 18.4 μg/m3 (64) 64.0
 
Sept. 17, 2019, midnight 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) 0.5 ppb (6) 25.0 μg/m3 (23) 19.1 μg/m3 (65) 65.0
 
Sept. 16, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.4 ppb (4) 33.0 μg/m3 (30) 19.9 μg/m3 (67) 67.0
 
Sept. 16, 2019, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.5 ppb (6) 29.0 μg/m3 (26) 20.4 μg/m3 (68) 68.0
 
Sept. 16, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) 0.5 ppb (6) 36.0 μg/m3 (33) 21.8 μg/m3 (71) 71.0
 
Sept. 16, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 57.0 ppb (44) 0.5 ppb (6) 30.0 μg/m3 (27) 20.7 μg/m3 (69) 69.0
 
Sept. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A 27.0 μg/m3 (25) 21.0 μg/m3 (69) 69.0
 
Sept. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 66.0 ppb (51) 0.4 ppb (4) 31.0 μg/m3 (28) 21.3 μg/m3 (70) 70.0
 
Sept. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 65.0 ppb (50) 0.4 ppb (4) 23.0 μg/m3 (21) 20.9 μg/m3 (69) 69.0
 
Sept. 16, 2019, 4 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 62.0 ppb (48) 0.5 ppb (6) 24.0 μg/m3 (22) 21.3 μg/m3 (70) 70.0
 
Sept. 16, 2019, 3 p.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 51.0 ppb (39) 0.5 ppb (6) 31.0 μg/m3 (28) 22.3 μg/m3 (72) 72.0
 
Sept. 16, 2019, 2 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) 0.6 ppb (7) 41.0 μg/m3 (37) 22.6 μg/m3 (73) 73.0
 
Sept. 16, 2019, 1 p.m. 13.0 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) 0.6 ppb (7) 35.0 μg/m3 (32) 23.6 μg/m3 (75) 75.0
 
Sept. 16, 2019, noon 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (18) 0.5 ppb (6) 31.0 μg/m3 (28) 24.7 μg/m3 (77) 77.0
 
Sept. 16, 2019, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.4 ppb (4) 27.0 μg/m3 (25) 24.7 μg/m3 (77) 77.0
 
Sept. 16, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.4 ppb (4) 27.0 μg/m3 (25) 24.0 μg/m3 (76) 76.0
 
Sept. 16, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.4 ppb (4) 25.0 μg/m3 (23) 24.7 μg/m3 (77) 77.0
 
Sept. 16, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.4 ppb (4) 27.0 μg/m3 (25) 24.7 μg/m3 (77) 77.0
 
Sept. 16, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.5 ppb (6) 26.0 μg/m3 (24) 25.6 μg/m3 (79) 79.0
 
Sept. 16, 2019, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.5 ppb (6) 31.0 μg/m3 (28) 26.6 μg/m3 (81) 81.0
 
Sept. 16, 2019, 5 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (21) 0.5 ppb (6) 33.0 μg/m3 (30) 26.5 μg/m3 (81) 81.0
 
Sept. 16, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) 0.5 ppb (6) 31.0 μg/m3 (28) 25.9 μg/m3 (80) 80.0
 
Sept. 16, 2019, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) 0.5 ppb (6) 31.0 μg/m3 (28) 26.1 μg/m3 (80) 80.0
 
Sept. 16, 2019, 2 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (32) 0.5 ppb (6) 34.0 μg/m3 (31) 25.3 μg/m3 (78) 78.0
 
Sept. 16, 2019, 1 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 42.0 ppb (32) 0.5 ppb (6) 38.0 μg/m3 (35) 24.0 μg/m3 (76) 76.0
 
Sept. 16, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 54.0 ppb (42) 0.4 ppb (4) 23.0 μg/m3 (21) 21.8 μg/m3 (71) 71.0
 
Sept. 15, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 62.0 ppb (48) 0.4 ppb (4) 30.0 μg/m3 (27) 22.3 μg/m3 (72) 72.0
 
Sept. 15, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 67.0 ppb (52) 0.4 ppb (4) 32.0 μg/m3 (29) 22.5 μg/m3 (72) 72.0
 
Sept. 15, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 72.0 ppb (56) 0.4 ppb (4) 24.0 μg/m3 (22) 23.2 μg/m3 (74) 74.0
 
Sept. 15, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 67.0 ppb (52) 0.4 ppb (4) 23.0 μg/m3 (21) 22.1 μg/m3 (71) 71.0
 
Sept. 15, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 66.0 ppb (51) 0.4 ppb (4) 16.0 μg/m3 (15) 23.1 μg/m3 (74) 74.0
 
Sept. 15, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 67.0 ppb (52) 0.4 ppb (4) 23.0 μg/m3 (21) 24.5 μg/m3 (77) 77.0
 
Sept. 15, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 64.0 ppb (49) 0.4 ppb (4) 25.0 μg/m3 (23) 23.9 μg/m3 (75) 75.0
 
Sept. 15, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (45) 0.4 ppb (4) 28.0 μg/m3 (25) 24.1 μg/m3 (76) 76.0
 
Sept. 15, 2019, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.4 ppb (4) 24.0 μg/m3 (22) 23.3 μg/m3 (74) 74.0
 
Sept. 15, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.4 ppb (4) 29.0 μg/m3 (26) 21.3 μg/m3 (70) 70.0
 
Sept. 15, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.4 ppb (4) 29.0 μg/m3 (26) 20.9 μg/m3 (69) 69.0
 
Sept. 15, 2019, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.4 ppb (4) 26.0 μg/m3 (24) 21.5 μg/m3 (70) 70.0
 
Sept. 15, 2019, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.4 ppb (4) 26.0 μg/m3 (24) 22.4 μg/m3 (72) 72.0
 
Sept. 15, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.4 ppb (4) 25.0 μg/m3 (23) 22.2 μg/m3 (72) 72.0
 
Sept. 15, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.4 ppb (4) 23.0 μg/m3 (21) 22.1 μg/m3 (71) 71.0
 
Sept. 15, 2019, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.4 ppb (4) 21.0 μg/m3 (19) 22.4 μg/m3 (72) 72.0
 
Sept. 15, 2019, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.4 ppb (4) 22.0 μg/m3 (20) 23.0 μg/m3 (73) 73.0
 
Sept. 15, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.4 ppb (4) 26.0 μg/m3 (24) 24.2 μg/m3 (76) 76.0
 
Sept. 15, 2019, 5 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.5 ppb (6) 28.0 μg/m3 (25) 25.2 μg/m3 (78) 78.0
 
Sept. 15, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.5 ppb (6) 30.0 μg/m3 (27) 26.0 μg/m3 (80) 80.0
 
Sept. 15, 2019, 3 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.5 ppb (6) 28.0 μg/m3 (25) 24.8 μg/m3 (77) 77.0
 
Sept. 15, 2019, 2 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.5 ppb (6) 33.0 μg/m3 (30) 23.7 μg/m3 (75) 75.0
 
Sept. 15, 2019, 1 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (32) 0.5 ppb (6) 30.0 μg/m3 (27) 22.7 μg/m3 (73) 73.0
 
Sept. 15, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.4 ppb (4) 29.0 μg/m3 (26) 20.5 μg/m3 (68) 68.0
 
Sept. 14, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) 0.4 ppb (4) 22.0 μg/m3 (20) 18.5 μg/m3 (64) 64.0
 
Sept. 14, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 57.0 ppb (44) 0.4 ppb (4) 24.0 μg/m3 (22) 18.7 μg/m3 (64) 64.0
 
Sept. 14, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (45) 0.4 ppb (4) 21.0 μg/m3 (19) 19.0 μg/m3 (65) 65.0
 
Sept. 14, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 60.0 ppb (46) 0.4 ppb (4) 14.0 μg/m3 (13) 18.0 μg/m3 (63) 63.0
 
Sept. 14, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 63.0 ppb (48) 0.4 ppb (4) 26.0 μg/m3 (24) 17.4 μg/m3 (61) 61.0
 
Sept. 14, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 62.0 ppb (48) 0.4 ppb (4) 23.0 μg/m3 (21) 16.4 μg/m3 (59) 59.0
 
Sept. 14, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) 0.4 ppb (4) 19.0 μg/m3 (17) 14.5 μg/m3 (55) 55.0
 
Sept. 14, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) 0.4 ppb (4) 16.0 μg/m3 (15) 13.9 μg/m3 (54) 54.0
 
Sept. 14, 2019, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.4 ppb (4) 14.0 μg/m3 (13) 12.4 μg/m3 (51) 51.0
 
Sept. 14, 2019, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.4 ppb (4) 16.0 μg/m3 (15) 10.1 μg/m3 (42) 42.0
 
Sept. 14, 2019, 1 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) 0.4 ppb (4) 15.0 μg/m3 (14) 8.7 μg/m3 (36) 36.0
 
Sept. 14, 2019, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (11) 0.4 ppb (4) 18.0 μg/m3 (16) 8.2 μg/m3 (34) 34.0
 
Sept. 14, 2019, 11 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (12) 0.3 ppb (3) 12.0 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
Sept. 14, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) 0.3 ppb (3) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
Sept. 14, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.3 ppb (3) 13.0 μg/m3 (12) 7.6 μg/m3 (32) 32.0
 
Sept. 14, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.3 ppb (3) N/A 7.5 μg/m3 (31) 31.0
 
Sept. 14, 2019, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) 0.3 ppb (3) N/A 7.8 μg/m3 (32) 32.0
 
Sept. 14, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) 0.3 ppb (3) N/A 7.5 μg/m3 (31) 31.0
 
Sept. 14, 2019, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) 0.3 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 14, 2019, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) 13.0 μg/m3 (12) 6.6 μg/m3 (28) 28.0
 
Sept. 14, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.4 ppb (4) 13.0 μg/m3 (12) 6.5 μg/m3 (27) 27.0
 
Sept. 14, 2019, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.4 ppb (4) 15.0 μg/m3 (14) 6.5 μg/m3 (27) 27.0
 
Sept. 14, 2019, 1 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.4 ppb (4) 12.0 μg/m3 (11) 6.1 μg/m3 (25) 25.0
 
Sept. 14, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.4 ppb (4) 11.0 μg/m3 (10) 5.5 μg/m3 (23) 27.0
 
Sept. 13, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.3 ppb (3) 8.0 μg/m3 (7) 5.2 μg/m3 (22) 32.0
 
Sept. 13, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.3 ppb (3) 8.0 μg/m3 (7) 5.6 μg/m3 (23) 35.0
 
Sept. 13, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.4 ppb (4) 10.0 μg/m3 (9) 6.9 μg/m3 (29) 38.0
 
Sept. 13, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.4 ppb (4) 9.0 μg/m3 (8) 8.8 μg/m3 (37) 38.0
 
Sept. 13, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) N/A 13.0 μg/m3 (12) 9.5 μg/m3 (40) 40.0
 
Sept. 13, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 15.0 μg/m3 (14) 10.9 μg/m3 (45) 45.0
 
Sept. 13, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.4 ppb (4) 14.0 μg/m3 (13) 10.2 μg/m3 (42) 42.0
 
Sept. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.4 ppb (4) 16.0 μg/m3 (15) 6.2 μg/m3 (26) 26.0
 
Sept. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.4 ppb (4) 6.0 μg/m3 (5) 3.3 μg/m3 (14) 14.0
 
Sept. 13, 2019, 2 p.m. 11.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.5 ppb (6) 13.0 μg/m3 (12) 4.5 μg/m3 (19) 20.0
 
Sept. 13, 2019, 1 p.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.4 ppb (4) 9.0 μg/m3 (8) 3.7 μg/m3 (15) 19.0
 
Sept. 13, 2019, noon 7.0 ppb (6) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.4 ppb (4) 8.0 μg/m3 (7) 3.7 μg/m3 (15) 20.0
 
Sept. 13, 2019, 11 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) 6.0 μg/m3 (5) 3.3 μg/m3 (14) 22.0
 
Sept. 13, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.3 ppb (3) 4.0 μg/m3 (4) 2.9 μg/m3 (12) 26.0
 
Sept. 13, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.3 ppb (3) 2.0 μg/m3 (2) 2.7 μg/m3 (11) 25.0
 
Sept. 13, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.3 ppb (3) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 21.0
 
Sept. 13, 2019, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.3 ppb (3) -1.0 μg/m3 (0) 4.4 μg/m3 (18) 22.0
 
Sept. 13, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) 0.3 ppb (3) 17.0 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
Sept. 13, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.3 ppb (3) 7.0 μg/m3 (6) 3.5 μg/m3 (15) 16.0
 
Sept. 13, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) 5.0 μg/m3 (5) 3.2 μg/m3 (13) 22.0
 
Sept. 13, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.3 ppb (3) 2.0 μg/m3 (2) 3.5 μg/m3 (15) 23.0
 
Sept. 13, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.3 ppb (3) 17.0 μg/m3 (15) 4.2 μg/m3 (18) 25.0
 
Sept. 13, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.3 ppb (3) 23.0 μg/m3 (21) 5.3 μg/m3 (22) 26.0
 
Sept. 13, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.3 ppb (3) 26.0 μg/m3 (24) 5.9 μg/m3 (25) 27.0
 
Sept. 12, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.3 ppb (3) 25.0 μg/m3 (23) 5.7 μg/m3 (24) 29.0
 
Sept. 12, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.3 ppb (3) 20.0 μg/m3 (18) 6.1 μg/m3 (25) 31.0
 
Sept. 12, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.3 ppb (3) 32.0 μg/m3 (29) 6.8 μg/m3 (28) 30.0
 
Sept. 12, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 69.0 μg/m3 (57) 8.9 μg/m3 (37) 57.0
 
Sept. 12, 2019, 7 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 46.0 μg/m3 (42) 8.4 μg/m3 (35) 42.0
 
Sept. 12, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 32.0 μg/m3 (29) 7.7 μg/m3 (32) 32.0
 
Sept. 12, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.3 ppb (3) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
Sept. 12, 2019, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.3 ppb (3) 34.0 μg/m3 (31) 8.0 μg/m3 (33) 33.0
 
Sept. 12, 2019, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) 22.0 μg/m3 (20) 7.5 μg/m3 (31) 31.0
 
Sept. 12, 2019, 2 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.3 ppb (3) 21.0 μg/m3 (19) 6.9 μg/m3 (29) 29.0
 
Sept. 12, 2019, 1 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.4 ppb (4) 26.0 μg/m3 (24) 6.6 μg/m3 (28) 28.0
 
Sept. 12, 2019, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) 18.0 μg/m3 (16) 5.9 μg/m3 (25) 25.0