ID: 2019

AQSQID: 560210100

Site Name: Cheyenne Ncore

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

Updated: Sept. 25, 2020, 2:40 p.m.

Location: Cheyenne (Chief Washwick Ave), WY

Reporting: True, Located: True

Current AQI: 50.0

Cheyenne (Chief Washwick Ave) WY, US: 41.18222, -104.778336

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 25, 2020, 1 p.m. 2.1 ppb (2) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 3.0 ppb (4) 36.0 ppb (28) 0.15 ppb (2) 48.0 μg/m3 (44) 12.0 μg/m3 (50) 50.0
 
Sept. 25, 2020, noon 1.8 ppb (2) 0.1 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 3.0 ppb (4) 38.0 ppb (29) 0.21 ppb (2) 60.0 μg/m3 (52) 22.0 μg/m3 (71) 71.0
 
Sept. 25, 2020, 11 a.m. 1.2 ppb (1) 0.0 ppb (0) 0.3 ppb (0) 0.0 ppb (0) N/A 3.0 ppb (4) 48.0 ppb (37) 0.21 ppb (2) 38.0 μg/m3 (35) 19.0 μg/m3 (65) 65.0
 
Sept. 25, 2020, 10 a.m. 1.5 ppb (1) 0.0 ppb (0) 0.4 ppb (0) 0.0 ppb (0) N/A 3.0 ppb (4) 46.0 ppb (35) 0.22 ppb (2) 27.0 μg/m3 (25) 17.0 μg/m3 (61) 61.0
 
Sept. 25, 2020, 9 a.m. 1.7 ppb (2) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 3.0 ppb (4) 45.0 ppb (35) 0.21 ppb (2) 26.0 μg/m3 (24) 11.0 μg/m3 (46) 46.0
 
Sept. 25, 2020, 8 a.m. 3.7 ppb (3) 0.0 ppb (0) 2.8 ppb (3) 3.0 ppb (3) N/A 3.0 ppb (4) 42.0 ppb (32) 0.27 ppb (3) 38.0 μg/m3 (35) 28.0 μg/m3 (84) 84.0
 
Sept. 25, 2020, 7 a.m. 5.6 ppb (5) 0.0 ppb (0) 5.1 ppb (5) 5.0 ppb (5) N/A 2.0 ppb (3) 41.0 ppb (32) 0.25 ppb (3) 41.0 μg/m3 (37) 30.0 μg/m3 (88) 88.0
 
Sept. 25, 2020, 6 a.m. 4.9 ppb (5) 0.0 ppb (0) 4.3 ppb (4) 4.0 ppb (4) N/A 2.0 ppb (3) 48.0 ppb (37) 0.16 ppb (2) 35.0 μg/m3 (32) 18.0 μg/m3 (63) 63.0
 
Sept. 25, 2020, 5 a.m. 6.1 ppb (6) 0.0 ppb (0) 5.6 ppb (5) 6.0 ppb (6) N/A 2.0 ppb (3) 52.0 ppb (40) 0.13 ppb (1) 29.0 μg/m3 (26) 3.0 μg/m3 (12) 40.0
 
Sept. 25, 2020, 4 a.m. 13.6 ppb (13) 0.0 ppb (0) 12.6 ppb (12) 13.0 ppb (12) N/A 3.0 ppb (4) 46.0 ppb (35) 0.14 ppb (2) 33.0 μg/m3 (30) 8.0 μg/m3 (33) 35.0
 
Sept. 25, 2020, 3 a.m. 18.1 ppb (17) 0.0 ppb (0) 18.0 ppb (17) 18.0 ppb (17) N/A 3.0 ppb (4) 42.0 ppb (32) 0.15 ppb (2) 37.0 μg/m3 (34) 15.0 μg/m3 (56) 56.0
 
Sept. 25, 2020, 2 a.m. 21.3 ppb (20) 0.1 ppb (0) 21.5 ppb (20) 21.0 ppb (19) N/A 3.0 ppb (4) 39.0 ppb (30) 0.21 ppb (2) 41.0 μg/m3 (37) 10.0 μg/m3 (42) 42.0
 
Sept. 25, 2020, 1 a.m. 13.0 ppb (12) 0.1 ppb (0) 12.4 ppb (11) 12.0 ppb (11) N/A 2.0 ppb (3) 51.0 ppb (39) 0.19 ppb (2) 57.0 μg/m3 (51) 11.0 μg/m3 (46) 51.0
 
Sept. 25, 2020, midnight 4.2 ppb (4) 0.1 ppb (0) 3.3 ppb (3) 3.0 ppb (3) N/A 2.0 ppb (3) 61.0 ppb (47) 0.15 ppb (2) 32.0 μg/m3 (29) 6.0 μg/m3 (25) 47.0
 
Sept. 24, 2020, 11 p.m. 2.8 ppb (3) 0.1 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 3.0 ppb (4) 64.0 ppb (49) 0.16 ppb (2) 24.0 μg/m3 (22) 5.0 μg/m3 (21) 49.0
 
Sept. 24, 2020, 10 p.m. 2.7 ppb (3) 0.2 ppb (0) 1.6 ppb (1) 1.0 ppb (1) N/A 3.0 ppb (4) 61.0 ppb (47) 0.15 ppb (2) 18.0 μg/m3 (16) 5.0 μg/m3 (21) 47.0
 
Sept. 24, 2020, 9 p.m. 2.4 ppb (2) 0.2 ppb (0) 1.3 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 60.0 ppb (46) 0.15 ppb (2) 18.0 μg/m3 (16) 8.0 μg/m3 (33) 46.0
 
Sept. 24, 2020, 8 p.m. 3.1 ppb (3) 0.3 ppb (0) 2.2 ppb (2) 2.0 ppb (2) N/A 2.0 ppb (3) 59.0 ppb (45) 0.16 ppb (2) 30.0 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
Sept. 24, 2020, 7 p.m. 2.7 ppb (3) 0.3 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 2.0 ppb (3) 56.0 ppb (43) 0.16 ppb (2) 28.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 6 p.m. 1.9 ppb (2) 0.2 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 54.0 ppb (42) 0.14 ppb (2) 26.0 μg/m3 (24) 9.0 μg/m3 (38) 42.0
 
Sept. 24, 2020, 5 p.m. 1.6 ppb (1) 0.1 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 54.0 ppb (42) 0.15 ppb (2) 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 4 p.m. 5.3 ppb (5) 0.8 ppb (1) 4.2 ppb (4) 3.0 ppb (3) N/A 2.0 ppb (3) 49.0 ppb (38) 0.18 ppb (2) 29.0 μg/m3 (26) 17.0 μg/m3 (61) 61.0
 
Sept. 24, 2020, 3 p.m. 12.4 ppb (11) 2.2 ppb (2) 11.3 ppb (10) 9.0 ppb (8) N/A 2.0 ppb (3) 40.0 ppb (31) 0.22 ppb (2) 34.0 μg/m3 (31) 7.0 μg/m3 (29) 31.0
 
Sept. 24, 2020, 2 p.m. 18.1 ppb (17) 1.3 ppb (1) 16.5 ppb (15) 15.0 ppb (14) N/A 2.0 ppb (3) 31.0 ppb (24) 0.25 ppb (3) 34.0 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 1 p.m. 20.3 ppb (19) 0.4 ppb (0) 18.3 ppb (17) 18.0 ppb (17) N/A 2.0 ppb (3) 25.0 ppb (19) 0.39 ppb (4) 53.0 μg/m3 (48) 34.0 μg/m3 (97) 97.0
 
Sept. 24, 2020, noon 5.2 ppb (5) 0.3 ppb (0) 5.0 ppb (5) 5.0 ppb (5) N/A 2.0 ppb (3) 38.0 ppb (29) 0.48 ppb (5) 65.0 μg/m3 (55) 43.0 μg/m3 (119) 119.0
 
Sept. 24, 2020, 11 a.m. 2.1 ppb (2) 0.2 ppb (0) 1.5 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 43.0 ppb (33) 0.45 ppb (5) 56.0 μg/m3 (50) 42.0 μg/m3 (116) 116.0
 
Sept. 24, 2020, 10 a.m. 3.0 ppb (3) 0.1 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 2.0 ppb (3) 39.0 ppb (30) 0.33 ppb (4) 50.0 μg/m3 (45) 28.0 μg/m3 (84) 84.0
 
Sept. 24, 2020, 9 a.m. 2.9 ppb (3) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 2.0 ppb (3) 42.0 ppb (32) 0.2 ppb (2) 40.0 μg/m3 (36) 20.0 μg/m3 (67) 67.0
 
Sept. 24, 2020, 8 a.m. 1.9 ppb (2) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 44.0 ppb (34) 0.13 ppb (1) 18.0 μg/m3 (16) 13.0 μg/m3 (52) 52.0
 
Sept. 24, 2020, 7 a.m. 1.5 ppb (1) 0.0 ppb (0) 0.4 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 45.0 ppb (35) 0.13 ppb (1) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Sept. 24, 2020, 6 a.m. 1.5 ppb (1) 0.0 ppb (0) 0.4 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 44.0 ppb (34) 0.12 ppb (1) 24.0 μg/m3 (22) 17.0 μg/m3 (61) 61.0
 
Sept. 24, 2020, 5 a.m. 2.2 ppb (2) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 40.0 ppb (31) 0.12 ppb (1) 26.0 μg/m3 (24) 14.0 μg/m3 (54) 54.0
 
Sept. 24, 2020, 4 a.m. 1.9 ppb (2) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 44.0 ppb (34) 0.12 ppb (1) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 34.0
 
Sept. 24, 2020, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 46.0 ppb (35) 0.12 ppb (1) 18.0 μg/m3 (16) 3.0 μg/m3 (12) 35.0
 
Sept. 24, 2020, 2 a.m. 2.4 ppb (2) 0.0 ppb (0) 1.1 ppb (1) 1.0 ppb (1) N/A 2.0 ppb (3) 46.0 ppb (35) 0.13 ppb (1) 20.0 μg/m3 (18) 16.0 μg/m3 (59) 59.0
 
Sept. 24, 2020, 1 a.m. 1.5 ppb (1) 0.0 ppb (0) 0.3 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 50.0 ppb (38) 0.12 ppb (1) 25.0 μg/m3 (23) 0.0 μg/m3 (0) 38.0
 
Sept. 24, 2020, midnight 1.0 ppb (1) 0.0 ppb (0) -0.2 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 53.0 ppb (41) 0.12 ppb (1) 19.0 μg/m3 (17) -1.0 μg/m3 (0) 41.0
 
Sept. 23, 2020, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) -0.1 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 56.0 ppb (43) 0.14 ppb (2) 23.0 μg/m3 (21) 7.0 μg/m3 (29) 43.0
 
Sept. 23, 2020, 10 p.m. 1.1 ppb (1) 0.0 ppb (0) -0.1 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 56.0 ppb (43) 0.15 ppb (2) 30.0 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
Sept. 23, 2020, 9 p.m. 1.1 ppb (1) 0.0 ppb (0) -0.1 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 56.0 ppb (43) 0.15 ppb (2) 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Sept. 23, 2020, 8 p.m. 1.1 ppb (1) 0.0 ppb (0) 0.0 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 55.0 ppb (42) 0.15 ppb (2) 28.0 μg/m3 (25) 17.0 μg/m3 (61) 61.0
 
Sept. 23, 2020, 7 p.m. 1.2 ppb (1) 0.0 ppb (0) 0.1 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 55.0 ppb (42) 0.14 ppb (2) 37.0 μg/m3 (34) 21.0 μg/m3 (69) 69.0
 
Sept. 23, 2020, 6 p.m. 1.4 ppb (1) 0.1 ppb (0) 0.3 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 55.0 ppb (42) 0.1 ppb (1) 42.0 μg/m3 (38) 6.0 μg/m3 (25) 42.0
 
Sept. 23, 2020, 5 p.m. 1.6 ppb (1) 0.1 ppb (0) 0.3 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) 0.09 ppb (1) 41.0 μg/m3 (37) 6.0 μg/m3 (25) 41.0
 
Sept. 23, 2020, 4 p.m. 2.2 ppb (2) 0.3 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.09 ppb (1) 79.0 μg/m3 (62) 5.0 μg/m3 (21) 62.0
 
Sept. 23, 2020, 3 p.m. 3.4 ppb (3) 0.6 ppb (1) 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) 0.1 ppb (1) N/A 6.0 μg/m3 (25) 36.0
 
Sept. 23, 2020, 2 p.m. 3.6 ppb (3) 0.4 ppb (0) 2.2 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) 81.0 μg/m3 (63) 5.0 μg/m3 (21) 63.0
 
Sept. 23, 2020, 1 p.m. 1.3 ppb (1) 0.0 ppb (0) 0.1 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) 0.09 ppb (1) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 37.0
 
Sept. 23, 2020, noon 1.0 ppb (1) 0.0 ppb (0) -0.2 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 47.0 ppb (36) 0.08 ppb (1) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 36.0
 
Sept. 23, 2020, 11 a.m. 0.9 ppb (1) 0.0 ppb (0) -0.2 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 49.0 ppb (38) 0.1 ppb (1) 31.0 μg/m3 (28) -2.0 μg/m3 (0) 38.0
 
Sept. 23, 2020, 10 a.m. 1.7 ppb (2) 0.0 ppb (0) 0.1 ppb (0) 0.0 ppb (0) N/A 2.0 ppb (3) 45.0 ppb (35) 0.18 ppb (2) 25.0 μg/m3 (23) 17.0 μg/m3 (61) 61.0
 
Sept. 23, 2020, 9 a.m. N/A 0.0 ppb (0) 1.3 ppb (1) 1.0 ppb (1) N/A N/A N/A N/A 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Sept. 23, 2020, 8 a.m. 2.1 ppb (2) 0.0 ppb (0) 1.2 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) 0.22 ppb (2) 34.0 μg/m3 (31) 19.0 μg/m3 (65) 65.0
 
Sept. 23, 2020, 7 a.m. 5.9 ppb (5) 0.0 ppb (0) 5.4 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (1) 44.0 ppb (34) 0.15 ppb (2) 27.0 μg/m3 (25) 14.0 μg/m3 (54) 54.0
 
Sept. 23, 2020, 6 a.m. 3.4 ppb (3) 0.0 ppb (0) 2.5 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) 0.13 ppb (1) 25.0 μg/m3 (23) 14.0 μg/m3 (54) 54.0
 
Sept. 23, 2020, 5 a.m. 2.1 ppb (2) 0.0 ppb (0) 1.1 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 56.0 ppb (43) 0.12 ppb (1) 24.0 μg/m3 (22) 15.0 μg/m3 (56) 56.0
 
Sept. 23, 2020, 4 a.m. 3.2 ppb (3) 0.0 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 56.0 ppb (43) 0.14 ppb (2) 23.0 μg/m3 (21) 9.0 μg/m3 (38) 43.0
 
Sept. 23, 2020, 3 a.m. 2.1 ppb (2) 0.0 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 57.0 ppb (44) 0.13 ppb (1) 22.0 μg/m3 (20) 13.0 μg/m3 (52) 52.0
 
Sept. 23, 2020, 2 a.m. 1.4 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 61.0 ppb (47) 0.13 ppb (1) 30.0 μg/m3 (27) 17.0 μg/m3 (61) 61.0
 
Sept. 23, 2020, 1 a.m. 3.5 ppb (3) 0.2 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 57.0 ppb (44) 0.14 ppb (2) 89.0 μg/m3 (67) 16.0 μg/m3 (59) 67.0
 
Sept. 23, 2020, midnight 3.2 ppb (3) 0.1 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 58.0 ppb (45) 0.14 ppb (2) 92.0 μg/m3 (68) 10.0 μg/m3 (42) 68.0
 
Sept. 22, 2020, 11 p.m. 1.9 ppb (2) 0.1 ppb (0) 1.3 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 62.0 ppb (48) 0.14 ppb (2) 30.0 μg/m3 (27) 13.0 μg/m3 (52) 52.0
 
Sept. 22, 2020, 10 p.m. 2.2 ppb (2) 0.2 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 58.0 ppb (45) 0.16 ppb (2) 41.0 μg/m3 (37) 19.0 μg/m3 (65) 65.0
 
Sept. 22, 2020, 9 p.m. 2.9 ppb (3) 0.2 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 57.0 ppb (44) 0.17 ppb (2) 30.0 μg/m3 (27) 19.0 μg/m3 (65) 65.0
 
Sept. 22, 2020, 8 p.m. 2.2 ppb (2) 0.1 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 59.0 ppb (45) 0.18 ppb (2) 26.0 μg/m3 (24) 15.0 μg/m3 (56) 56.0
 
Sept. 22, 2020, 7 p.m. 2.1 ppb (2) 0.1 ppb (0) 1.5 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 59.0 ppb (45) 0.2 ppb (2) 37.0 μg/m3 (34) 19.0 μg/m3 (65) 65.0
 
Sept. 22, 2020, 6 p.m. 1.2 ppb (1) 0.0 ppb (0) 0.3 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) 0.16 ppb (2) 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Sept. 22, 2020, 5 p.m. 2.2 ppb (2) 0.2 ppb (0) 1.5 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 54.0 ppb (42) 0.18 ppb (2) 44.0 μg/m3 (40) 30.0 μg/m3 (88) 88.0
 
Sept. 22, 2020, 4 p.m. 4.9 ppb (5) 0.7 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) 47.0 ppb (36) 0.21 ppb (2) 100.0 μg/m3 (72) 26.0 μg/m3 (80) 80.0
 
Sept. 22, 2020, 3 p.m. 5.5 ppb (5) 0.7 ppb (1) 4.5 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) 0.2 ppb (2) 59.0 μg/m3 (52) 16.0 μg/m3 (59) 59.0
 
Sept. 22, 2020, 2 p.m. 6.6 ppb (6) 0.5 ppb (0) 5.7 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) 0.16 ppb (2) 52.0 μg/m3 (47) 11.0 μg/m3 (46) 47.0
 
Sept. 22, 2020, 1 p.m. 2.9 ppb (3) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) 0.15 ppb (2) 26.0 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2020, noon 2.4 ppb (2) 0.0 ppb (0) 1.6 ppb (1) 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) 0.14 ppb (2) 25.0 μg/m3 (23) 6.0 μg/m3 (25) 36.0
 
Sept. 22, 2020, 11 a.m. 2.5 ppb (2) 0.0 ppb (0) 1.7 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.15 ppb (2) 24.0 μg/m3 (22) 13.0 μg/m3 (52) 52.0
 
Sept. 22, 2020, 10 a.m. 2.8 ppb (3) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) 0.15 ppb (2) 31.0 μg/m3 (28) 14.0 μg/m3 (54) 54.0
 
Sept. 22, 2020, 9 a.m. 3.4 ppb (3) 0.0 ppb (0) 2.6 ppb (2) 3.0 ppb (3) N/A 1.0 ppb (1) 46.0 ppb (35) 0.15 ppb (2) 37.0 μg/m3 (34) 18.0 μg/m3 (63) 63.0
 
Sept. 22, 2020, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) 3.4 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 42.0 ppb (32) 0.16 ppb (2) 35.0 μg/m3 (32) 13.0 μg/m3 (52) 52.0
 
Sept. 22, 2020, 7 a.m. 4.7 ppb (4) 0.0 ppb (0) 3.6 ppb (3) 4.0 ppb (4) N/A 1.0 ppb (1) 38.0 ppb (29) 0.16 ppb (2) 36.0 μg/m3 (33) 22.0 μg/m3 (71) 71.0
 
Sept. 22, 2020, 6 a.m. 5.9 ppb (5) 0.0 ppb (0) 5.1 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (1) 37.0 ppb (28) 0.17 ppb (2) 39.0 μg/m3 (35) 22.0 μg/m3 (71) 71.0
 
Sept. 22, 2020, 5 a.m. 5.2 ppb (5) 0.0 ppb (0) 4.2 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) 0.17 ppb (2) 32.0 μg/m3 (29) 14.0 μg/m3 (54) 54.0
 
Sept. 22, 2020, 4 a.m. 5.6 ppb (5) 0.0 ppb (0) 4.2 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) 0.19 ppb (2) 37.0 μg/m3 (34) 15.0 μg/m3 (56) 56.0
 
Sept. 22, 2020, 3 a.m. 5.8 ppb (5) 0.0 ppb (0) 5.0 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (1) 45.0 ppb (35) 0.2 ppb (2) 55.0 μg/m3 (50) 24.0 μg/m3 (76) 76.0
 
Sept. 22, 2020, 2 a.m. 4.7 ppb (4) 0.0 ppb (0) 3.8 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 49.0 ppb (38) 0.2 ppb (2) 52.0 μg/m3 (47) 11.0 μg/m3 (46) 47.0
 
Sept. 22, 2020, 1 a.m. 3.4 ppb (3) 0.0 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) 0.23 ppb (3) 55.0 μg/m3 (50) 17.0 μg/m3 (61) 61.0
 
Sept. 22, 2020, midnight 1.8 ppb (2) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 52.0 ppb (40) 0.24 ppb (3) 45.0 μg/m3 (41) 14.0 μg/m3 (54) 54.0
 
Sept. 21, 2020, 11 p.m. 1.4 ppb (1) 0.0 ppb (0) 0.5 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 55.0 ppb (42) 0.25 ppb (3) 32.0 μg/m3 (29) 18.0 μg/m3 (63) 63.0
 
Sept. 21, 2020, 10 p.m. 1.3 ppb (1) 0.0 ppb (0) 0.3 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 54.0 ppb (42) 0.25 ppb (3) 29.0 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
Sept. 21, 2020, 9 p.m. 1.9 ppb (2) 0.2 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.25 ppb (3) 60.0 μg/m3 (52) 22.0 μg/m3 (71) 71.0
 
Sept. 21, 2020, 8 p.m. 2.1 ppb (2) 0.2 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.21 ppb (2) 55.0 μg/m3 (50) 17.0 μg/m3 (61) 61.0
 
Sept. 21, 2020, 7 p.m. 1.2 ppb (1) 0.1 ppb (0) 0.1 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) 0.2 ppb (2) 30.0 μg/m3 (27) 25.0 μg/m3 (78) 78.0
 
Sept. 21, 2020, 6 p.m. 1.8 ppb (2) 0.1 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 56.0 ppb (43) 0.2 ppb (2) 49.0 μg/m3 (45) 16.0 μg/m3 (59) 59.0
 
Sept. 21, 2020, 5 p.m. 2.6 ppb (2) 0.3 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 55.0 ppb (42) 0.19 ppb (2) 40.0 μg/m3 (36) 9.0 μg/m3 (38) 42.0
 
Sept. 21, 2020, 4 p.m. 5.4 ppb (5) 0.9 ppb (1) 4.6 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 49.0 ppb (38) 0.19 ppb (2) 50.0 μg/m3 (45) 20.0 μg/m3 (67) 67.0
 
Sept. 21, 2020, 3 p.m. 7.9 ppb (7) 1.1 ppb (1) 7.6 ppb (7) 7.0 ppb (6) N/A 1.0 ppb (1) 44.0 ppb (34) 0.2 ppb (2) 29.0 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2020, 2 p.m. 5.6 ppb (5) 0.3 ppb (0) 4.6 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) 0.21 ppb (2) 38.0 μg/m3 (35) 17.0 μg/m3 (61) 61.0
 
Sept. 21, 2020, 1 p.m. 3.2 ppb (3) 0.0 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.2 ppb (2) 35.0 μg/m3 (32) 17.0 μg/m3 (61) 61.0
 
Sept. 21, 2020, noon 7.3 ppb (7) 0.0 ppb (0) 7.8 ppb (7) 8.0 ppb (7) N/A 1.0 ppb (1) 42.0 ppb (32) 0.2 ppb (2) 31.0 μg/m3 (28) 25.0 μg/m3 (78) 78.0
 
Sept. 21, 2020, 11 a.m. 11.6 ppb (11) 0.0 ppb (0) 12.4 ppb (11) 12.0 ppb (11) N/A 1.0 ppb (1) 35.0 ppb (27) 0.21 ppb (2) 29.0 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
Sept. 21, 2020, 10 a.m. 6.2 ppb (6) 0.0 ppb (0) 6.5 ppb (6) 6.0 ppb (6) N/A 1.0 ppb (1) 35.0 ppb (27) 0.22 ppb (2) 33.0 μg/m3 (30) 16.0 μg/m3 (59) 59.0
 
Sept. 21, 2020, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) 3.1 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) 0.23 ppb (3) 28.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2020, 8 a.m. 3.7 ppb (3) 0.0 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) 0.22 ppb (2) 26.0 μg/m3 (24) 18.0 μg/m3 (63) 63.0
 
Sept. 21, 2020, 7 a.m. 4.4 ppb (4) 0.0 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) 0.22 ppb (2) 38.0 μg/m3 (35) 24.0 μg/m3 (76) 76.0
 
Sept. 21, 2020, 6 a.m. 3.8 ppb (4) 0.0 ppb (0) 2.8 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) 0.21 ppb (2) 29.0 μg/m3 (26) 18.0 μg/m3 (63) 63.0
 
Sept. 21, 2020, 5 a.m. 3.6 ppb (3) 0.0 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) 0.21 ppb (2) 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Sept. 21, 2020, 4 a.m. 4.5 ppb (4) 0.0 ppb (0) 3.9 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 42.0 ppb (32) 0.21 ppb (2) 29.0 μg/m3 (26) 15.0 μg/m3 (56) 56.0
 
Sept. 21, 2020, 3 a.m. 2.2 ppb (2) 0.0 ppb (0) 1.1 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) 0.21 ppb (2) 30.0 μg/m3 (27) 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2020, 2 a.m. 1.9 ppb (2) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) 0.22 ppb (2) 33.0 μg/m3 (30) 19.0 μg/m3 (65) 65.0
 
Sept. 21, 2020, 1 a.m. 5.0 ppb (5) 0.1 ppb (0) 4.2 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 49.0 ppb (38) 0.23 ppb (3) 44.0 μg/m3 (40) 17.0 μg/m3 (61) 61.0
 
Sept. 21, 2020, midnight 3.6 ppb (3) 0.1 ppb (0) 2.9 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 54.0 ppb (42) 0.21 ppb (2) 43.0 μg/m3 (39) 3.0 μg/m3 (12) 42.0
 
Sept. 20, 2020, 11 p.m. 1.8 ppb (2) 0.1 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 56.0 ppb (43) 0.2 ppb (2) 40.0 μg/m3 (36) 23.0 μg/m3 (73) 73.0
 
Sept. 20, 2020, 10 p.m. 1.8 ppb (2) 0.1 ppb (0) 1.1 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 58.0 ppb (45) 0.19 ppb (2) 30.0 μg/m3 (27) 14.0 μg/m3 (54) 54.0
 
Sept. 20, 2020, 9 p.m. 1.7 ppb (2) 0.1 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 57.0 ppb (44) 0.2 ppb (2) 26.0 μg/m3 (24) 15.0 μg/m3 (56) 56.0
 
Sept. 20, 2020, 8 p.m. 1.6 ppb (1) 0.1 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 55.0 ppb (42) 0.2 ppb (2) 23.0 μg/m3 (21) 20.0 μg/m3 (67) 67.0
 
Sept. 20, 2020, 7 p.m. 1.6 ppb (1) 0.1 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) 0.19 ppb (2) 31.0 μg/m3 (28) 14.0 μg/m3 (54) 54.0
 
Sept. 20, 2020, 6 p.m. 1.4 ppb (1) 0.1 ppb (0) 0.3 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) 0.2 ppb (2) 33.0 μg/m3 (30) 26.0 μg/m3 (80) 80.0
 
Sept. 20, 2020, 5 p.m. 1.6 ppb (1) 0.1 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) 0.17 ppb (2) 30.0 μg/m3 (27) 8.0 μg/m3 (33) 39.0
 
Sept. 20, 2020, 4 p.m. 1.3 ppb (1) 0.1 ppb (0) 0.1 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 50.0 ppb (38) 0.18 ppb (2) 20.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 3 p.m. 1.4 ppb (1) 0.1 ppb (0) 0.2 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 37.0
 
Sept. 20, 2020, 2 p.m. 1.8 ppb (2) 0.1 ppb (0) 0.4 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 44.0 ppb (34) 0.25 ppb (3) 23.0 μg/m3 (21) 14.0 μg/m3 (54) 54.0
 
Sept. 20, 2020, 1 p.m. 2.3 ppb (2) 0.1 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) 0.26 ppb (3) 27.0 μg/m3 (25) 19.0 μg/m3 (65) 65.0
 
Sept. 20, 2020, noon 2.1 ppb (2) 0.1 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) 0.25 ppb (3) 25.0 μg/m3 (23) 14.0 μg/m3 (54) 54.0
 
Sept. 20, 2020, 11 a.m. 1.9 ppb (2) 0.1 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) 0.26 ppb (3) 30.0 μg/m3 (27) 19.0 μg/m3 (65) 65.0
 
Sept. 20, 2020, 10 a.m. 2.2 ppb (2) 0.1 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 46.0 ppb (35) 0.32 ppb (4) 37.0 μg/m3 (34) 24.0 μg/m3 (76) 76.0
 
Sept. 20, 2020, 9 a.m. N/A 0.2 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A N/A N/A N/A 49.0 μg/m3 (45) 35.0 μg/m3 (99) 99.0
 
Sept. 20, 2020, 8 a.m. 1.8 ppb (2) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) 0.22 ppb (2) N/A 23.0 μg/m3 (73) 73.0
 
Sept. 20, 2020, 7 a.m. 1.8 ppb (2) 0.0 ppb (0) 0.4 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) 0.19 ppb (2) 25.0 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 6 a.m. 1.9 ppb (2) 0.0 ppb (0) 0.5 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) 0.22 ppb (2) 38.0 μg/m3 (35) 21.0 μg/m3 (69) 69.0
 
Sept. 20, 2020, 5 a.m. 1.9 ppb (2) 0.0 ppb (0) 0.4 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 44.0 ppb (34) 0.18 ppb (2) 41.0 μg/m3 (37) 18.0 μg/m3 (63) 63.0
 
Sept. 20, 2020, 4 a.m. 1.7 ppb (2) 0.0 ppb (0) 0.2 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 47.0 ppb (36) 0.17 ppb (2) 37.0 μg/m3 (34) 14.0 μg/m3 (54) 54.0
 
Sept. 20, 2020, 3 a.m. 3.4 ppb (3) 0.0 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.17 ppb (2) 92.0 μg/m3 (68) 12.0 μg/m3 (50) 68.0
 
Sept. 20, 2020, 2 a.m. 3.8 ppb (4) 0.0 ppb (0) 2.9 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 53.0 ppb (41) 0.16 ppb (2) 19.0 μg/m3 (17) 14.0 μg/m3 (54) 54.0
 
Sept. 20, 2020, 1 a.m. 3.5 ppb (3) 0.0 ppb (0) 2.7 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 57.0 ppb (44) 0.16 ppb (2) 23.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2020, midnight 2.2 ppb (2) 0.0 ppb (0) 1.3 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 57.0 ppb (44) 0.15 ppb (2) 29.0 μg/m3 (26) 10.0 μg/m3 (42) 44.0
 
Sept. 19, 2020, 11 p.m. 2.1 ppb (2) 0.1 ppb (0) 1.3 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 57.0 ppb (44) 0.15 ppb (2) 23.0 μg/m3 (21) 7.0 μg/m3 (29) 44.0
 
Sept. 19, 2020, 10 p.m. 1.8 ppb (2) 0.1 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 59.0 ppb (45) 0.16 ppb (2) 32.0 μg/m3 (29) 11.0 μg/m3 (46) 46.0
 
Sept. 19, 2020, 9 p.m. 1.6 ppb (1) 0.0 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) 0.16 ppb (2) 16.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2020, 8 p.m. 1.4 ppb (1) 0.0 ppb (0) 0.2 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) 0.16 ppb (2) 19.0 μg/m3 (17) 8.0 μg/m3 (33) 44.0
 
Sept. 19, 2020, 7 p.m. 1.4 ppb (1) 0.0 ppb (0) 0.1 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) 0.16 ppb (2) 24.0 μg/m3 (22) 10.0 μg/m3 (42) 44.0
 
Sept. 19, 2020, 6 p.m. 1.6 ppb (1) 0.1 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) 0.16 ppb (2) 30.0 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2020, 5 p.m. 2.2 ppb (2) 0.1 ppb (0) 1.3 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 57.0 ppb (44) 0.17 ppb (2) 41.0 μg/m3 (37) 23.0 μg/m3 (73) 73.0
 
Sept. 19, 2020, 4 p.m. 2.7 ppb (3) 0.2 ppb (0) 1.8 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 51.0 ppb (39) 0.16 ppb (2) 27.0 μg/m3 (25) 20.0 μg/m3 (67) 67.0
 
Sept. 19, 2020, 3 p.m. 2.7 ppb (3) 0.1 ppb (0) 1.6 ppb (1) 2.0 ppb (2) N/A 1.0 ppb (1) 52.0 ppb (40) 0.16 ppb (2) 33.0 μg/m3 (30) 20.0 μg/m3 (67) 67.0
 
Sept. 19, 2020, 2 p.m. 1.9 ppb (2) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.16 ppb (2) 31.0 μg/m3 (28) 24.0 μg/m3 (76) 76.0
 
Sept. 19, 2020, 1 p.m. 1.7 ppb (2) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.18 ppb (2) 37.0 μg/m3 (34) 20.0 μg/m3 (67) 67.0
 
Sept. 19, 2020, noon 1.9 ppb (2) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) 0.18 ppb (2) 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Sept. 19, 2020, 11 a.m. 3.2 ppb (3) 0.0 ppb (0) 1.7 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) 0.19 ppb (2) 38.0 μg/m3 (35) 19.0 μg/m3 (65) 65.0
 
Sept. 19, 2020, 10 a.m. 7.2 ppb (7) 0.0 ppb (0) 6.3 ppb (6) 6.0 ppb (6) N/A 1.0 ppb (1) 49.0 ppb (38) 0.24 ppb (3) 54.0 μg/m3 (49) 26.0 μg/m3 (80) 80.0
 
Sept. 19, 2020, 9 a.m. 13.2 ppb (12) 0.0 ppb (0) 12.9 ppb (12) 13.0 ppb (12) N/A 1.0 ppb (1) 41.0 ppb (32) 0.25 ppb (3) 59.0 μg/m3 (52) 27.0 μg/m3 (82) 82.0
 
Sept. 19, 2020, 8 a.m. 12.4 ppb (11) 0.0 ppb (0) 11.7 ppb (11) 12.0 ppb (11) N/A 1.0 ppb (1) 41.0 ppb (32) 0.27 ppb (3) 61.0 μg/m3 (53) 33.0 μg/m3 (95) 95.0
 
Sept. 19, 2020, 7 a.m. 5.1 ppb (5) 0.0 ppb (0) 4.8 ppb (4) 5.0 ppb (5) N/A 1.0 ppb (1) 53.0 ppb (41) 0.25 ppb (3) 67.0 μg/m3 (56) 27.0 μg/m3 (82) 82.0
 
Sept. 19, 2020, 6 a.m. 7.5 ppb (7) 0.0 ppb (0) 8.5 ppb (8) 8.0 ppb (7) N/A 1.0 ppb (1) 54.0 ppb (42) 0.26 ppb (3) 67.0 μg/m3 (56) 23.0 μg/m3 (73) 73.0
 
Sept. 19, 2020, 5 a.m. 11.7 ppb (11) 0.0 ppb (0) 13.0 ppb (12) 13.0 ppb (12) N/A 1.0 ppb (1) 50.0 ppb (38) 0.29 ppb (3) 72.0 μg/m3 (58) 48.0 μg/m3 (131) 131.0
 
Sept. 19, 2020, 4 a.m. 17.5 ppb (16) 0.0 ppb (0) 19.7 ppb (18) 20.0 ppb (19) N/A 1.0 ppb (1) 49.0 ppb (38) 0.34 ppb (4) 84.0 μg/m3 (64) 40.0 μg/m3 (111) 111.0
 
Sept. 19, 2020, 3 a.m. 16.3 ppb (15) 0.0 ppb (0) 18.4 ppb (17) 18.0 ppb (17) N/A 1.0 ppb (1) 55.0 ppb (42) 0.36 ppb (4) 86.0 μg/m3 (66) 27.0 μg/m3 (82) 82.0
 
Sept. 19, 2020, 2 a.m. 11.3 ppb (10) 0.0 ppb (0) 12.8 ppb (12) 13.0 ppb (12) N/A 1.0 ppb (1) 64.0 ppb (49) 0.33 ppb (4) 89.0 μg/m3 (67) 33.0 μg/m3 (95) 95.0
 
Sept. 19, 2020, 1 a.m. 9.1 ppb (8) 0.1 ppb (0) 9.8 ppb (9) 10.0 ppb (9) N/A 1.0 ppb (1) 68.0 ppb (52) 0.29 ppb (3) 79.0 μg/m3 (62) 34.0 μg/m3 (97) 97.0
 
Sept. 19, 2020, midnight 5.2 ppb (5) 0.1 ppb (0) 5.7 ppb (5) 6.0 ppb (6) N/A 1.0 ppb (1) 71.0 ppb (55) 0.28 ppb (3) 74.0 μg/m3 (60) 23.0 μg/m3 (73) 73.0
 
Sept. 18, 2020, 11 p.m. 3.9 ppb (4) 0.2 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 70.0 ppb (54) 0.25 ppb (3) 67.0 μg/m3 (56) 23.0 μg/m3 (73) 73.0
 
Sept. 18, 2020, 10 p.m. 3.7 ppb (3) 0.2 ppb (0) 3.5 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 69.0 ppb (53) 0.26 ppb (3) 67.0 μg/m3 (56) 26.0 μg/m3 (80) 80.0
 
Sept. 18, 2020, 9 p.m. 3.2 ppb (3) 0.2 ppb (0) 2.8 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 67.0 ppb (52) 0.27 ppb (3) 69.0 μg/m3 (57) 25.0 μg/m3 (78) 78.0
 
Sept. 18, 2020, 8 p.m. 3.1 ppb (3) 0.2 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 63.0 ppb (48) 0.28 ppb (3) 84.0 μg/m3 (64) 24.0 μg/m3 (76) 76.0
 
Sept. 18, 2020, 7 p.m. 3.5 ppb (3) 0.3 ppb (0) 2.8 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) 59.0 ppb (45) 0.28 ppb (3) 73.0 μg/m3 (59) 30.0 μg/m3 (88) 88.0
 
Sept. 18, 2020, 6 p.m. 3.6 ppb (3) 0.3 ppb (0) 2.8 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 55.0 ppb (42) 0.29 ppb (3) 76.0 μg/m3 (60) 30.0 μg/m3 (88) 88.0
 
Sept. 18, 2020, 5 p.m. 4.5 ppb (4) 0.6 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) 74.0 μg/m3 (60) 34.0 μg/m3 (97) 97.0
 
Sept. 18, 2020, 4 p.m. 17.2 ppb (16) 4.3 ppb (4) 17.4 ppb (16) 13.0 ppb (12) N/A 1.0 ppb (1) 33.0 ppb (25) 0.35 ppb (4) 84.0 μg/m3 (64) 38.0 μg/m3 (106) 106.0
 
Sept. 18, 2020, 3 p.m. 21.1 ppb (20) 5.5 ppb (5) 22.5 ppb (21) 17.0 ppb (16) N/A 1.0 ppb (1) 20.0 ppb (15) 0.42 ppb (5) 83.0 μg/m3 (64) 28.0 μg/m3 (84) 84.0
 
Sept. 18, 2020, 2 p.m. 12.7 ppb (12) 1.2 ppb (1) 13.0 ppb (12) 12.0 ppb (11) N/A 1.0 ppb (1) 16.0 ppb (12) 0.32 ppb (4) 61.0 μg/m3 (53) 33.0 μg/m3 (95) 95.0