ID: 318

AQSQID: 130890002

Site Name: South Dekalb

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

Updated: Sept. 30, 2020, 6:39 p.m.

Location: Decatur (Clifton Spgs Rd), GA

Reporting: True, Located: True

Current AQI: 25.0

Decatur (Clifton Spgs Rd) GA, US: 33.6906, -84.2731

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 30, 2020, 5 p.m. 4.1 ppb (4) 0.8 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 10.6 μg/m3 (10) 3.8 μg/m3 (16) 25.0
 
Sept. 30, 2020, 4 p.m. 5.7 ppb (5) 1.5 ppb (1) 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.28 ppb (3) 11.6 μg/m3 (11) 3.8 μg/m3 (16) 20.0
 
Sept. 30, 2020, 3 p.m. 7.2 ppb (7) 2.3 ppb (2) 7.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) 0.19 ppb (2) 19.4 μg/m3 (18) 3.8 μg/m3 (16) 18.0
 
Sept. 30, 2020, 2 p.m. 15.3 ppb (14) 7.7 ppb (7) 13.0 ppb (12) 8.0 ppb (7) N/A 0.0 ppb (0) 13.0 ppb (10) 0.26 ppb (3) 23.1 μg/m3 (21) 5.2 μg/m3 (22) 22.0
 
Sept. 30, 2020, 1 p.m. 36.3 ppb (34) 25.6 ppb (24) 32.0 ppb (30) 11.0 ppb (10) N/A 0.0 ppb (0) 2.0 ppb (2) 0.34 ppb (4) 20.8 μg/m3 (19) 7.4 μg/m3 (31) 34.0
 
Sept. 30, 2020, noon 55.9 ppb (52) 46.6 ppb (43) 49.0 ppb (45) 9.0 ppb (8) N/A 0.0 ppb (0) 0.0 ppb (0) 0.42 ppb (5) 20.9 μg/m3 (19) 8.2 μg/m3 (34) 52.0
 
Sept. 30, 2020, 11 a.m. 45.5 ppb (42) 37.1 ppb (34) 38.0 ppb (35) 8.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) 0.42 ppb (5) 22.8 μg/m3 (21) 8.7 μg/m3 (36) 42.0
 
Sept. 30, 2020, 10 a.m. 29.8 ppb (28) 21.9 ppb (20) 26.0 ppb (24) 8.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) 0.31 ppb (3) 21.4 μg/m3 (19) 9.2 μg/m3 (38) 38.0
 
Sept. 30, 2020, 9 a.m. 31.1 ppb (29) 23.2 ppb (21) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) 0.29 ppb (3) 24.0 μg/m3 (22) 9.5 μg/m3 (40) 40.0
 
Sept. 30, 2020, 8 a.m. 24.3 ppb (23) 16.0 ppb (15) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) 0.26 ppb (3) 24.8 μg/m3 (23) 9.6 μg/m3 (40) 40.0
 
Sept. 30, 2020, 7 a.m. 22.8 ppb (21) 14.1 ppb (13) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 0.0 ppb (0) 0.26 ppb (3) 25.6 μg/m3 (23) 9.8 μg/m3 (41) 41.0
 
Sept. 30, 2020, 6 a.m. 17.8 ppb (16) 8.8 ppb (8) 14.0 ppb (13) 9.0 ppb (8) N/A 0.0 ppb (0) 0.0 ppb (0) 0.24 ppb (3) 23.6 μg/m3 (21) 10.1 μg/m3 (42) 42.0
 
Sept. 30, 2020, 5 a.m. 25.5 ppb (24) 18.3 ppb (17) 20.0 ppb (19) 7.0 ppb (6) N/A 0.0 ppb (0) 0.0 ppb (0) 0.31 ppb (3) 26.4 μg/m3 (24) 10.7 μg/m3 (45) 45.0
 
Sept. 30, 2020, 4 a.m. 33.4 ppb (31) 25.3 ppb (23) 28.0 ppb (26) 8.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) 0.35 ppb (4) 24.2 μg/m3 (22) 10.6 μg/m3 (44) 44.0
 
Sept. 30, 2020, 3 a.m. 34.4 ppb (32) 25.2 ppb (23) 35.0 ppb (32) 9.0 ppb (8) N/A 0.0 ppb (0) 0.0 ppb (0) 0.36 ppb (4) 24.3 μg/m3 (22) 10.1 μg/m3 (42) 42.0
 
Sept. 30, 2020, 2 a.m. 23.0 ppb (21) 12.9 ppb (12) 21.0 ppb (19) 10.0 ppb (9) N/A 0.0 ppb (0) 0.0 ppb (0) 0.32 ppb (4) 23.9 μg/m3 (22) 9.4 μg/m3 (39) 39.0
 
Sept. 30, 2020, 1 a.m. 19.1 ppb (18) 8.2 ppb (8) 18.0 ppb (17) 11.0 ppb (10) N/A 0.0 ppb (0) 0.0 ppb (0) 0.27 ppb (3) 21.7 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
Sept. 30, 2020, midnight 12.5 ppb (12) 2.2 ppb (2) 12.0 ppb (11) 10.0 ppb (9) N/A 0.0 ppb (0) 1.0 ppb (1) 0.23 ppb (3) 20.9 μg/m3 (19) 8.2 μg/m3 (34) 34.0
 
Sept. 29, 2020, 11 p.m. 7.5 ppb (7) 1.2 ppb (1) 7.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (8) 0.18 ppb (2) 17.1 μg/m3 (16) 7.8 μg/m3 (32) 32.0
 
Sept. 29, 2020, 10 p.m. 5.4 ppb (5) 1.4 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) 0.15 ppb (2) 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
Sept. 29, 2020, 9 p.m. 6.7 ppb (6) 1.7 ppb (2) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) 0.16 ppb (2) 14.9 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
Sept. 29, 2020, 8 p.m. 10.5 ppb (10) 2.3 ppb (2) 9.0 ppb (8) 8.0 ppb (7) N/A 0.0 ppb (0) 13.0 ppb (10) 0.18 ppb (2) 14.5 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Sept. 29, 2020, 7 p.m. 13.1 ppb (12) 3.6 ppb (3) 12.0 ppb (11) 10.0 ppb (9) N/A 0.0 ppb (0) 10.0 ppb (8) 0.19 ppb (2) 15.0 μg/m3 (14) 6.7 μg/m3 (28) 28.0
 
Sept. 29, 2020, 6 p.m. 11.6 ppb (11) 2.8 ppb (3) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (8) 0.18 ppb (2) 13.2 μg/m3 (12) 6.2 μg/m3 (26) 26.0
 
Sept. 29, 2020, 5 p.m. 11.3 ppb (10) 2.7 ppb (3) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (8) 0.18 ppb (2) 12.5 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
Sept. 29, 2020, 4 p.m. 11.6 ppb (11) 2.9 ppb (3) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (8) 0.17 ppb (2) 15.2 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Sept. 29, 2020, 3 p.m. 9.7 ppb (9) 2.0 ppb (2) 9.0 ppb (8) 8.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (9) 0.17 ppb (2) 14.3 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
Sept. 29, 2020, 2 p.m. 8.7 ppb (8) 2.0 ppb (2) 8.0 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (8) 0.17 ppb (2) 13.8 μg/m3 (13) 6.7 μg/m3 (28) 28.0
 
Sept. 29, 2020, 1 p.m. 8.2 ppb (8) 1.5 ppb (1) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) 0.16 ppb (2) 15.5 μg/m3 (14) 7.2 μg/m3 (30) 30.0
 
Sept. 29, 2020, noon 7.9 ppb (7) 1.4 ppb (1) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.15 ppb (2) 14.9 μg/m3 (14) 6.1 μg/m3 (25) 25.0
 
Sept. 29, 2020, 11 a.m. 6.5 ppb (6) 0.9 ppb (1) 5.0 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) 0.15 ppb (2) 12.6 μg/m3 (11) 5.2 μg/m3 (22) 22.0
 
Sept. 29, 2020, 10 a.m. 5.0 ppb (5) 0.9 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.14 ppb (2) 10.6 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Sept. 29, 2020, 9 a.m. 3.6 ppb (3) 0.7 ppb (1) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.13 ppb (1) 9.7 μg/m3 (9) 3.7 μg/m3 (15) 18.0
 
Sept. 29, 2020, 8 a.m. 3.5 ppb (3) 0.6 ppb (1) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.13 ppb (1) 9.9 μg/m3 (9) 3.5 μg/m3 (15) 18.0
 
Sept. 29, 2020, 7 a.m. 3.2 ppb (3) 0.3 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.13 ppb (1) 9.5 μg/m3 (9) 3.1 μg/m3 (13) 18.0
 
Sept. 29, 2020, 6 a.m. 2.8 ppb (3) 0.1 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.17 ppb (2) 10.9 μg/m3 (10) 3.7 μg/m3 (15) 15.0
 
Sept. 29, 2020, 5 a.m. 6.1 ppb (6) 0.1 ppb (0) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) 17.6 μg/m3 (16) 7.4 μg/m3 (31) 31.0
 
Sept. 29, 2020, 4 a.m. 8.9 ppb (8) 0.2 ppb (0) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (8) 0.27 ppb (3) 23.0 μg/m3 (21) 10.7 μg/m3 (45) 45.0
 
Sept. 29, 2020, 3 a.m. 11.4 ppb (11) 0.4 ppb (0) 12.0 ppb (11) 11.0 ppb (10) N/A 0.0 ppb (0) 5.0 ppb (4) 0.31 ppb (3) 26.1 μg/m3 (24) 12.7 μg/m3 (51) 51.0
 
Sept. 29, 2020, 2 a.m. 9.6 ppb (9) 0.5 ppb (0) 10.0 ppb (9) 9.0 ppb (8) N/A N/A 7.0 ppb (5) 0.27 ppb (3) 27.2 μg/m3 (25) 13.2 μg/m3 (53) 53.0
 
Sept. 29, 2020, 1 a.m. 5.2 ppb (5) 0.1 ppb (0) 5.0 ppb (5) 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.25 ppb (3) 22.0 μg/m3 (20) 11.5 μg/m3 (48) 48.0
 
Sept. 29, 2020, midnight 3.2 ppb (3) -0.2 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.24 ppb (3) 24.3 μg/m3 (22) 12.1 μg/m3 (50) 50.0
 
Sept. 28, 2020, 11 p.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) 16.9 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
Sept. 28, 2020, 10 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 1.56 ppb (17) 20.4 μg/m3 (19) 11.1 μg/m3 (46) 46.0
 
Sept. 28, 2020, 9 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.18 ppb (2) 15.4 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
Sept. 28, 2020, 8 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) 14.9 μg/m3 (14) 8.6 μg/m3 (36) 36.0
 
Sept. 28, 2020, 7 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.18 ppb (2) 15.4 μg/m3 (14) 8.5 μg/m3 (35) 35.0
 
Sept. 28, 2020, 6 p.m. 1.3 ppb (1) -0.1 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) 0.17 ppb (2) 15.7 μg/m3 (14) 8.4 μg/m3 (35) 35.0
 
Sept. 28, 2020, 5 p.m. 1.3 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
Sept. 28, 2020, 4 p.m. 1.4 ppb (1) 0.1 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) 0.16 ppb (2) 12.7 μg/m3 (12) 7.2 μg/m3 (30) 30.0
 
Sept. 28, 2020, 3 p.m. 3.6 ppb (3) 0.8 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 14.2 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
Sept. 28, 2020, 2 p.m. 4.7 ppb (4) 1.0 ppb (1) 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (8) 0.2 ppb (2) 14.5 μg/m3 (13) 7.5 μg/m3 (31) 31.0
 
Sept. 28, 2020, 1 p.m. 4.3 ppb (4) 0.9 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 9.0 ppb (7) 0.19 ppb (2) 17.1 μg/m3 (16) 8.3 μg/m3 (35) 35.0
 
Sept. 28, 2020, noon 3.4 ppb (3) 0.5 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 5.0 ppb (4) 0.19 ppb (2) 24.3 μg/m3 (22) 10.1 μg/m3 (42) 42.0
 
Sept. 28, 2020, 11 a.m. 2.5 ppb (2) 0.2 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 5.0 ppb (4) 0.18 ppb (2) 27.4 μg/m3 (25) 11.1 μg/m3 (46) 46.0
 
Sept. 28, 2020, 10 a.m. 2.3 ppb (2) 0.2 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (7) 0.17 ppb (2) 25.9 μg/m3 (24) 11.1 μg/m3 (46) 46.0
 
Sept. 28, 2020, 9 a.m. 1.9 ppb (2) 0.2 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.17 ppb (2) 27.9 μg/m3 (25) 11.5 μg/m3 (48) 48.0
 
Sept. 28, 2020, 8 a.m. 1.6 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.17 ppb (2) 29.4 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
Sept. 28, 2020, 7 a.m. 1.3 ppb (1) 0.1 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (5) 0.18 ppb (2) 39.0 μg/m3 (35) 13.4 μg/m3 (53) 53.0
 
Sept. 28, 2020, 6 a.m. 1.4 ppb (1) 0.1 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (5) 0.18 ppb (2) 36.5 μg/m3 (33) 12.8 μg/m3 (52) 52.0
 
Sept. 28, 2020, 5 a.m. 1.4 ppb (1) 0.1 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 9.0 ppb (7) 0.18 ppb (2) 37.6 μg/m3 (34) 13.1 μg/m3 (52) 52.0
 
Sept. 28, 2020, 4 a.m. 1.5 ppb (1) 0.1 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 10.0 ppb (8) 0.18 ppb (2) 33.8 μg/m3 (31) 12.6 μg/m3 (51) 51.0
 
Sept. 28, 2020, 3 a.m. 2.0 ppb (2) 0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 10.0 ppb (8) 0.18 ppb (2) 27.4 μg/m3 (25) 11.4 μg/m3 (48) 48.0
 
Sept. 28, 2020, 2 a.m. 2.2 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 8.0 ppb (6) 0.2 ppb (2) 34.2 μg/m3 (31) 13.0 μg/m3 (52) 52.0
 
Sept. 28, 2020, 1 a.m. 1.8 ppb (2) -0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (7) 0.2 ppb (2) 28.9 μg/m3 (26) 11.9 μg/m3 (50) 50.0
 
Sept. 28, 2020, midnight 1.5 ppb (1) -0.2 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 11.0 ppb (8) 0.2 ppb (2) 23.5 μg/m3 (21) 10.5 μg/m3 (44) 44.0
 
Sept. 27, 2020, 11 p.m. 1.4 ppb (1) -0.2 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (12) 0.21 ppb (2) 17.7 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
Sept. 27, 2020, 10 p.m. 1.1 ppb (1) -0.2 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 13.7 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
Sept. 27, 2020, 9 p.m. 0.9 ppb (1) -0.2 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) 0.19 ppb (2) 18.1 μg/m3 (16) 8.7 μg/m3 (36) 36.0
 
Sept. 27, 2020, 8 p.m. 0.8 ppb (1) -0.2 ppb (0) 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) 0.19 ppb (2) 16.7 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Sept. 27, 2020, 7 p.m. 0.7 ppb (1) -0.2 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) 0.19 ppb (2) 13.5 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Sept. 27, 2020, 6 p.m. 1.2 ppb (1) -0.1 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) 13.4 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Sept. 27, 2020, 5 p.m. 1.7 ppb (2) -0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) 12.6 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
Sept. 27, 2020, 4 p.m. 1.8 ppb (2) 0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) 14.0 μg/m3 (13) 8.5 μg/m3 (35) 35.0
 
Sept. 27, 2020, 3 p.m. 2.0 ppb (2) 0.4 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) 0.22 ppb (2) 16.2 μg/m3 (15) 9.7 μg/m3 (40) 40.0
 
Sept. 27, 2020, 2 p.m. 2.4 ppb (2) 0.7 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (7) 0.23 ppb (3) 16.3 μg/m3 (15) 9.9 μg/m3 (41) 41.0
 
Sept. 27, 2020, 1 p.m. 2.9 ppb (3) 1.1 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 5.0 ppb (4) 0.23 ppb (3) 17.9 μg/m3 (16) 10.1 μg/m3 (42) 42.0
 
Sept. 27, 2020, noon 2.8 ppb (3) 1.0 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 1.0 ppb (1) 0.26 ppb (3) 22.3 μg/m3 (20) 11.2 μg/m3 (47) 47.0
 
Sept. 27, 2020, 11 a.m. 2.9 ppb (3) 0.9 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 0.0 ppb (0) 0.28 ppb (3) 22.9 μg/m3 (21) 11.4 μg/m3 (48) 48.0
 
Sept. 27, 2020, 10 a.m. 2.9 ppb (3) 0.6 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 0.0 ppb (0) 0.27 ppb (3) 25.3 μg/m3 (23) 12.1 μg/m3 (50) 50.0
 
Sept. 27, 2020, 9 a.m. 2.8 ppb (3) 0.6 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 24.1 μg/m3 (22) 11.9 μg/m3 (50) 50.0
 
Sept. 27, 2020, 8 a.m. 3.2 ppb (3) 0.4 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 22.6 μg/m3 (21) 11.5 μg/m3 (48) 48.0
 
Sept. 27, 2020, 7 a.m. 4.2 ppb (4) 0.7 ppb (1) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 2.0 ppb (2) 0.32 ppb (4) 23.9 μg/m3 (22) 11.8 μg/m3 (49) 49.0
 
Sept. 27, 2020, 6 a.m. 10.7 ppb (10) 5.7 ppb (5) 9.0 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 0.0 ppb (0) 0.55 ppb (6) 29.3 μg/m3 (27) 13.2 μg/m3 (53) 53.0
 
Sept. 27, 2020, 5 a.m. 21.0 ppb (19) 18.1 ppb (17) 21.0 ppb (19) 3.0 ppb (3) N/A 0.0 ppb (0) 0.0 ppb (0) 0.7 ppb (8) 30.9 μg/m3 (28) 12.1 μg/m3 (50) 50.0
 
Sept. 27, 2020, 4 a.m. 22.3 ppb (21) 18.3 ppb (17) 24.0 ppb (22) 4.0 ppb (4) N/A 0.0 ppb (0) 0.0 ppb (0) 0.7 ppb (8) 29.9 μg/m3 (27) 11.9 μg/m3 (50) 50.0
 
Sept. 27, 2020, 3 a.m. 14.0 ppb (13) 8.7 ppb (8) 16.0 ppb (15) 5.0 ppb (5) N/A 0.0 ppb (0) 0.0 ppb (0) 0.57 ppb (6) 29.8 μg/m3 (27) 11.8 μg/m3 (49) 49.0
 
Sept. 27, 2020, 2 a.m. 9.2 ppb (9) 2.2 ppb (2) 11.0 ppb (10) 7.0 ppb (6) N/A 0.0 ppb (0) 0.0 ppb (0) 0.47 ppb (5) 25.0 μg/m3 (23) 10.7 μg/m3 (45) 45.0
 
Sept. 27, 2020, 1 a.m. 10.7 ppb (10) 0.6 ppb (1) 13.0 ppb (12) 10.0 ppb (9) N/A 0.0 ppb (0) 1.0 ppb (1) 0.45 ppb (5) 25.0 μg/m3 (23) 10.5 μg/m3 (44) 44.0
 
Sept. 27, 2020, midnight 4.6 ppb (4) 0.0 ppb (0) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (9) 0.33 ppb (4) 21.6 μg/m3 (20) 9.8 μg/m3 (41) 41.0
 
Sept. 26, 2020, 11 p.m. 2.6 ppb (2) -0.1 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.28 ppb (3) 17.7 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
Sept. 26, 2020, 10 p.m. 2.5 ppb (2) -0.1 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.24 ppb (3) 12.5 μg/m3 (11) 6.5 μg/m3 (27) 27.0
 
Sept. 26, 2020, 9 p.m. 3.7 ppb (3) 0.2 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.28 ppb (3) 12.0 μg/m3 (11) 6.1 μg/m3 (25) 25.0
 
Sept. 26, 2020, 8 p.m. 3.2 ppb (3) 0.1 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 10.8 μg/m3 (10) 5.6 μg/m3 (23) 26.0
 
Sept. 26, 2020, 7 p.m. 2.6 ppb (2) 0.1 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) 0.22 ppb (2) 10.9 μg/m3 (10) 5.8 μg/m3 (24) 28.0
 
Sept. 26, 2020, 6 p.m. 3.8 ppb (4) 0.3 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.33 ppb (4) 11.2 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Sept. 26, 2020, 5 p.m. 3.7 ppb (3) 0.4 ppb (0) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.27 ppb (3) 10.8 μg/m3 (10) 6.2 μg/m3 (26) 26.0
 
Sept. 26, 2020, 4 p.m. 3.5 ppb (3) 0.5 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.25 ppb (3) 10.3 μg/m3 (9) 6.1 μg/m3 (25) 25.0
 
Sept. 26, 2020, 3 p.m. 4.2 ppb (4) 1.2 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (12) 0.27 ppb (3) 10.7 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
Sept. 26, 2020, 2 p.m. 5.3 ppb (5) 1.9 ppb (2) 5.0 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 9.0 ppb (7) 0.28 ppb (3) 11.0 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Sept. 26, 2020, 1 p.m. 5.0 ppb (5) 1.5 ppb (1) 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 4.0 ppb (3) 0.28 ppb (3) 14.3 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
Sept. 26, 2020, noon 2.7 ppb (3) 0.6 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 4.0 ppb (3) 0.27 ppb (3) 18.6 μg/m3 (17) 8.6 μg/m3 (36) 36.0
 
Sept. 26, 2020, 11 a.m. 2.7 ppb (3) 0.3 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 3.0 ppb (2) 0.27 ppb (3) 19.2 μg/m3 (17) 8.7 μg/m3 (36) 36.0
 
Sept. 26, 2020, 10 a.m. 3.5 ppb (3) 0.3 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 3.0 ppb (2) 0.28 ppb (3) 19.3 μg/m3 (18) 8.3 μg/m3 (35) 35.0
 
Sept. 26, 2020, 9 a.m. 3.3 ppb (3) 0.4 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (3) 24.3 μg/m3 (22) 9.6 μg/m3 (40) 40.0
 
Sept. 26, 2020, 8 a.m. 4.6 ppb (4) 0.6 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 0.0 ppb (0) 0.33 ppb (4) 19.4 μg/m3 (18) 8.6 μg/m3 (36) 36.0
 
Sept. 26, 2020, 7 a.m. 9.9 ppb (9) 5.2 ppb (5) 9.0 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 0.0 ppb (0) 0.42 ppb (5) 31.2 μg/m3 (28) 10.1 μg/m3 (42) 42.0
 
Sept. 26, 2020, 6 a.m. 19.2 ppb (18) 16.1 ppb (15) 19.0 ppb (18) 3.0 ppb (3) N/A 0.0 ppb (0) 0.0 ppb (0) 0.52 ppb (6) 38.4 μg/m3 (35) 10.6 μg/m3 (44) 44.0
 
Sept. 26, 2020, 5 a.m. 23.7 ppb (22) 21.4 ppb (20) 27.0 ppb (25) 2.0 ppb (2) N/A 0.0 ppb (0) 0.0 ppb (0) 0.55 ppb (6) 44.4 μg/m3 (40) 11.2 μg/m3 (47) 47.0
 
Sept. 26, 2020, 4 a.m. 24.1 ppb (22) 20.3 ppb (19) 26.0 ppb (24) 4.0 ppb (4) N/A 0.0 ppb (0) 0.0 ppb (0) 0.54 ppb (6) 40.6 μg/m3 (37) 10.5 μg/m3 (44) 44.0
 
Sept. 26, 2020, 3 a.m. 18.4 ppb (17) 15.0 ppb (14) 23.0 ppb (21) 3.0 ppb (3) N/A 0.0 ppb (0) 0.0 ppb (0) 0.47 ppb (5) 41.7 μg/m3 (38) 10.9 μg/m3 (45) 45.0
 
Sept. 26, 2020, 2 a.m. 12.6 ppb (12) 7.7 ppb (7) 15.0 ppb (14) 5.0 ppb (5) N/A 0.0 ppb (0) 0.0 ppb (0) 0.41 ppb (5) 35.0 μg/m3 (32) 9.7 μg/m3 (40) 40.0
 
Sept. 26, 2020, 1 a.m. 11.4 ppb (11) 3.0 ppb (3) 13.0 ppb (12) 9.0 ppb (8) N/A 0.0 ppb (0) 0.0 ppb (0) 0.36 ppb (4) 32.3 μg/m3 (29) 9.9 μg/m3 (41) 41.0
 
Sept. 26, 2020, midnight 9.5 ppb (9) 0.5 ppb (0) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 1.0 ppb (1) 0.32 ppb (4) 28.4 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 11 p.m. 9.3 ppb (9) 0.2 ppb (0) 11.0 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 5.0 ppb (4) 0.29 ppb (3) 16.1 μg/m3 (15) 6.3 μg/m3 (26) 26.0
 
Sept. 25, 2020, 10 p.m. 5.7 ppb (5) 0.4 ppb (0) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (9) 0.25 ppb (3) 14.3 μg/m3 (13) 5.3 μg/m3 (22) 22.0
 
Sept. 25, 2020, 9 p.m. 5.0 ppb (5) 0.5 ppb (0) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) 0.23 ppb (3) 10.2 μg/m3 (9) 4.4 μg/m3 (18) 18.0
 
Sept. 25, 2020, 8 p.m. 2.8 ppb (3) 0.2 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 10.9 μg/m3 (10) 4.5 μg/m3 (19) 19.0
 
Sept. 25, 2020, 7 p.m. 4.4 ppb (4) 0.9 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) 9.7 μg/m3 (9) 4.1 μg/m3 (17) 17.0
 
Sept. 25, 2020, 6 p.m. 3.0 ppb (3) 0.4 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.18 ppb (2) 9.2 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Sept. 25, 2020, 5 p.m. 1.6 ppb (1) 0.1 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) 0.17 ppb (2) 8.4 μg/m3 (8) 3.6 μg/m3 (15) 15.0
 
Sept. 25, 2020, 4 p.m. 3.0 ppb (3) 0.5 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) 0.18 ppb (2) 10.0 μg/m3 (9) 3.8 μg/m3 (16) 16.0
 
Sept. 25, 2020, 3 p.m. 5.8 ppb (5) 1.6 ppb (1) 6.0 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) 0.19 ppb (2) 9.2 μg/m3 (8) 3.9 μg/m3 (16) 16.0
 
Sept. 25, 2020, 2 p.m. 11.8 ppb (11) 3.6 ppb (3) 12.0 ppb (11) 8.0 ppb (7) N/A 0.0 ppb (0) 9.0 ppb (7) 0.23 ppb (3) 12.8 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Sept. 25, 2020, 1 p.m. 10.3 ppb (10) 3.8 ppb (4) 10.0 ppb (9) 7.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (4) 0.28 ppb (3) 21.0 μg/m3 (19) 7.6 μg/m3 (32) 32.0
 
Sept. 25, 2020, noon 5.0 ppb (5) 0.7 ppb (1) 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 4.0 ppb (3) 0.29 ppb (3) 20.8 μg/m3 (19) 7.6 μg/m3 (32) 32.0
 
Sept. 25, 2020, 11 a.m. 3.5 ppb (3) 0.3 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 6.0 ppb (5) 0.17 ppb (2) 20.2 μg/m3 (18) 7.1 μg/m3 (30) 30.0
 
Sept. 25, 2020, 10 a.m. 3.1 ppb (3) 0.1 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) 0.16 ppb (2) 18.5 μg/m3 (17) 6.9 μg/m3 (29) 29.0
 
Sept. 25, 2020, 9 a.m. 1.6 ppb (1) 0.1 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (11) 0.15 ppb (2) 18.8 μg/m3 (17) 6.4 μg/m3 (27) 27.0
 
Sept. 25, 2020, 8 a.m. 1.7 ppb (2) 0.2 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (12) 0.15 ppb (2) 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
Sept. 25, 2020, 7 a.m. 1.7 ppb (2) 0.1 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) 0.15 ppb (2) 20.8 μg/m3 (19) 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 6 a.m. 1.3 ppb (1) 0.2 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (14) 0.15 ppb (2) 20.9 μg/m3 (19) 8.1 μg/m3 (34) 34.0
 
Sept. 25, 2020, 5 a.m. 0.9 ppb (1) 0.3 ppb (0) 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) 0.16 ppb (2) 19.6 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 4 a.m. 0.9 ppb (1) 0.3 ppb (0) 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) 0.17 ppb (2) 17.3 μg/m3 (16) 7.3 μg/m3 (30) 30.0
 
Sept. 25, 2020, 3 a.m. 1.0 ppb (1) 0.3 ppb (0) 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 2 a.m. 1.3 ppb (1) 0.3 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) 18.2 μg/m3 (17) 8.5 μg/m3 (35) 35.0
 
Sept. 25, 2020, 1 a.m. 1.8 ppb (2) 0.3 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.18 ppb (2) 17.2 μg/m3 (16) 8.7 μg/m3 (36) 36.0
 
Sept. 25, 2020, midnight 2.2 ppb (2) 0.4 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 16.2 μg/m3 (15) 8.2 μg/m3 (34) 34.0
 
Sept. 24, 2020, 11 p.m. 2.4 ppb (2) 0.3 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 16.2 μg/m3 (15) 7.7 μg/m3 (32) 32.0
 
Sept. 24, 2020, 10 p.m. 2.8 ppb (3) 0.3 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (13) 0.19 ppb (2) 17.5 μg/m3 (16) 8.5 μg/m3 (35) 35.0
 
Sept. 24, 2020, 9 p.m. 1.9 ppb (2) 0.3 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.17 ppb (2) 18.4 μg/m3 (17) 9.1 μg/m3 (38) 38.0
 
Sept. 24, 2020, 8 p.m. 2.7 ppb (3) 0.5 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.18 ppb (2) 16.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
Sept. 24, 2020, 7 p.m. 3.5 ppb (3) 0.6 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.19 ppb (2) 14.5 μg/m3 (13) 8.2 μg/m3 (34) 34.0
 
Sept. 24, 2020, 6 p.m. 5.7 ppb (5) 0.9 ppb (1) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) 0.21 ppb (2) 16.5 μg/m3 (15) 9.1 μg/m3 (38) 38.0
 
Sept. 24, 2020, 5 p.m. 8.5 ppb (8) 1.5 ppb (1) 8.0 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (8) 0.23 ppb (3) 18.3 μg/m3 (17) 9.6 μg/m3 (40) 40.0
 
Sept. 24, 2020, 4 p.m. 12.1 ppb (11) 3.0 ppb (3) 12.0 ppb (11) 9.0 ppb (8) N/A 0.0 ppb (0) 8.0 ppb (6) 0.25 ppb (3) 17.7 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Sept. 24, 2020, 3 p.m. 3.8 ppb (4) 0.7 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.2 ppb (2) 17.4 μg/m3 (16) 8.7 μg/m3 (36) 36.0
 
Sept. 24, 2020, 2 p.m. 3.1 ppb (3) 0.6 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) 17.2 μg/m3 (16) 9.3 μg/m3 (39) 39.0
 
Sept. 24, 2020, 1 p.m. 3.9 ppb (4) 0.9 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) 17.1 μg/m3 (16) 9.9 μg/m3 (41) 41.0
 
Sept. 24, 2020, noon 2.9 ppb (3) 0.8 ppb (1) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.22 ppb (2) 16.9 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
Sept. 24, 2020, 11 a.m. 2.6 ppb (2) 0.7 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (7) 0.18 ppb (2) 16.1 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
Sept. 24, 2020, 10 a.m. 4.3 ppb (4) 0.7 ppb (1) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 6.0 ppb (5) 0.21 ppb (2) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Sept. 24, 2020, 9 a.m. 6.9 ppb (6) 1.4 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 0.0 ppb (0) 0.3 ppb (3) 17.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
Sept. 24, 2020, 8 a.m. 8.0 ppb (7) 1.3 ppb (1) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 0.0 ppb (0) 0.34 ppb (4) 17.0 μg/m3 (15) 10.8 μg/m3 (45) 45.0
 
Sept. 24, 2020, 7 a.m. 12.6 ppb (12) 2.4 ppb (2) 12.0 ppb (11) 10.0 ppb (9) N/A 0.0 ppb (0) 0.0 ppb (0) 0.4 ppb (4) 18.0 μg/m3 (16) 11.2 μg/m3 (47) 47.0
 
Sept. 24, 2020, 6 a.m. 17.4 ppb (16) 6.3 ppb (6) 17.0 ppb (16) 11.0 ppb (10) N/A 0.0 ppb (0) 0.0 ppb (0) 0.48 ppb (5) 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 5 a.m. 15.6 ppb (14) 6.0 ppb (6) 17.0 ppb (16) 10.0 ppb (9) N/A 0.0 ppb (0) 0.0 ppb (0) 0.48 ppb (5) 18.0 μg/m3 (16) 10.4 μg/m3 (43) 43.0
 
Sept. 24, 2020, 4 a.m. 17.5 ppb (16) 2.9 ppb (3) 17.0 ppb (16) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.49 ppb (5) 20.0 μg/m3 (18) 11.1 μg/m3 (46) 46.0
 
Sept. 24, 2020, 3 a.m. 16.4 ppb (15) 1.7 ppb (2) 16.0 ppb (15) 15.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) 0.47 ppb (5) 21.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 2 a.m. 14.8 ppb (14) 0.9 ppb (1) 15.0 ppb (14) 14.0 ppb (13) N/A 0.0 ppb (0) 3.0 ppb (2) 0.45 ppb (5) 20.0 μg/m3 (18) 10.4 μg/m3 (43) 43.0
 
Sept. 24, 2020, 1 a.m. 14.4 ppb (13) 0.7 ppb (1) 15.0 ppb (14) 14.0 ppb (13) N/A 0.0 ppb (0) 2.0 ppb (2) 0.42 ppb (5) 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
Sept. 24, 2020, midnight 31.3 ppb (29) 7.3 ppb (7) 33.0 ppb (31) 24.0 ppb (22) N/A 0.0 ppb (0) 2.0 ppb (2) 0.51 ppb (6) 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
Sept. 23, 2020, 11 p.m. 15.4 ppb (14) 1.0 ppb (1) 18.0 ppb (17) 15.0 ppb (14) N/A 0.0 ppb (0) 24.0 ppb (18) 0.38 ppb (4) 19.0 μg/m3 (17) 9.3 μg/m3 (39) 39.0
 
Sept. 23, 2020, 10 p.m. 11.5 ppb (11) 0.2 ppb (0) 13.0 ppb (12) 12.0 ppb (11) N/A 1.0 ppb (1) 32.0 ppb (25) 0.32 ppb (4) 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Sept. 23, 2020, 9 p.m. 7.3 ppb (7) 0.2 ppb (0) 7.0 ppb (6) 7.0 ppb (6) N/A 1.0 ppb (1) 46.0 ppb (35) 0.25 ppb (3) 20.0 μg/m3 (18) 8.6 μg/m3 (36) 36.0
 
Sept. 23, 2020, 8 p.m. 3.7 ppb (3) 0.0 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 55.0 ppb (42) 0.21 ppb (2) 21.0 μg/m3 (19) 9.1 μg/m3 (38) 42.0
 
Sept. 23, 2020, 7 p.m. 3.4 ppb (3) 0.0 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 52.0 ppb (40) 0.2 ppb (2) 19.0 μg/m3 (17) 8.8 μg/m3 (37) 40.0
 
Sept. 23, 2020, 6 p.m. 3.9 ppb (4) 0.1 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 49.0 ppb (38) 0.2 ppb (2) 17.0 μg/m3 (15) 8.5 μg/m3 (35) 38.0