ID: 7885

AQSQID: 840320310031

Site Name: Reno4

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

Updated: April 20, 2021, 10:44 a.m.

Location: Reno (E Reno), NV

Reporting: True, Located: True

Current AQI: 25.0

Reno (E Reno) NV, US: 39.521918, -119.795444

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 20, 2021, 9 a.m. 7.8 ppb (8) 0.0 ppb (0) 6.3 ppb (6) 8.0 ppb (8) 6.7 ppb (7) 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) 19.0 μg/m3 (18) 5.0 μg/m3 (21) 25.0
 
April 20, 2021, 8 a.m. 6.8 ppb (7) 0.0 ppb (0) 5.8 ppb (6) 7.0 ppb (7) 6.1 ppb (6) 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 31.0
 
April 20, 2021, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) 4.0 ppb (4) 5.0 ppb (5) 4.4 ppb (5) 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 36.0
 
April 20, 2021, 6 a.m. 3.7 ppb (4) -0.1 ppb (0) 3.0 ppb (3) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 41.0 ppb (38) 0.14 ppb (2) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 38.0
 
April 20, 2021, 5 a.m. 3.4 ppb (4) -0.1 ppb (0) 2.9 ppb (3) 4.0 ppb (4) 3.2 ppb (4) 0.0 ppb (0) 42.0 ppb (39) 0.14 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 39.0
 
April 20, 2021, 4 a.m. 3.5 ppb (4) 0.0 ppb (0) 2.9 ppb (3) 4.0 ppb (4) 3.2 ppb (4) 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 40.0
 
April 20, 2021, 3 a.m. 3.8 ppb (4) 0.0 ppb (0) 3.1 ppb (3) 4.0 ppb (4) 3.5 ppb (4) 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 39.0
 
April 20, 2021, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) 2.4 ppb (3) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 42.0 ppb (39) 0.13 ppb (2) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 39.0
 
April 20, 2021, 1 a.m. 3.5 ppb (4) 0.4 ppb (1) 3.0 ppb (3) 3.0 ppb (3) 2.9 ppb (3) 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 40.0
 
April 20, 2021, midnight 5.5 ppb (6) 0.8 ppb (1) 4.8 ppb (5) 5.0 ppb (5) 4.4 ppb (5) 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 21.0 μg/m3 (20) 4.0 μg/m3 (17) 40.0
 
April 19, 2021, 11 p.m. 3.9 ppb (4) 0.6 ppb (1) 3.2 ppb (4) 3.0 ppb (3) 3.0 ppb (3) 0.0 ppb (0) 48.0 ppb (45) 0.13 ppb (2) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 45.0
 
April 19, 2021, 10 p.m. 2.5 ppb (3) 0.3 ppb (1) 1.9 ppb (2) 2.0 ppb (2) 1.9 ppb (2) 0.0 ppb (0) 50.0 ppb (47) 0.13 ppb (2) 12.0 μg/m3 (12) 8.0 μg/m3 (34) 47.0
 
April 19, 2021, 9 p.m. 2.6 ppb (3) 0.5 ppb (1) 1.9 ppb (2) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 48.0 ppb (45) 0.12 ppb (2) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 45.0
 
April 19, 2021, 8 p.m. N/A N/A 2.9 ppb (3) N/A 2.7 ppb (3) 0.0 ppb (0) 49.0 ppb (46) 0.12 ppb (2) 30.0 μg/m3 (28) 2.0 μg/m3 (9) 46.0
 
April 19, 2021, 7 p.m. N/A N/A 6.7 ppb (7) N/A 1.7 ppb (2) 0.0 ppb (0) 48.0 ppb (45) 0.12 ppb (2) 19.0 μg/m3 (18) 2.0 μg/m3 (9) 45.0
 
April 19, 2021, 6 p.m. 14.1 ppb (14) 4.2 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 40.0 ppb (38) 0.19 ppb (3) 34.0 μg/m3 (32) 6.0 μg/m3 (25) 38.0
 
April 19, 2021, 5 p.m. 30.1 ppb (29) 11.3 ppb (11) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 29.0 ppb (27) 0.32 ppb (4) 45.0 μg/m3 (42) 8.0 μg/m3 (34) 42.0
 
April 19, 2021, 4 p.m. 36.9 ppb (35) 15.9 ppb (15) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 29.0 ppb (27) 0.34 ppb (4) 43.0 μg/m3 (40) 10.0 μg/m3 (42) 42.0
 
April 19, 2021, 3 p.m. 46.4 ppb (44) 22.4 ppb (22) 45.0 ppb (43) 24.0 ppb (23) 24.8 ppb (24) N/A N/A N/A 37.0 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 2 p.m. 60.8 ppb (59) 33.6 ppb (32) 57.3 ppb (55) 27.0 ppb (26) 27.6 ppb (27) N/A N/A N/A 45.0 μg/m3 (42) 9.0 μg/m3 (38) 59.0
 
April 19, 2021, 1 p.m. 89.5 ppb (89) 56.8 ppb (54) 87.4 ppb (87) 33.0 ppb (32) 35.0 ppb (34) 1.0 ppb (2) 1.0 ppb (1) 0.74 ppb (8) 68.0 μg/m3 (58) 9.0 μg/m3 (38) 89.0
 
April 19, 2021, noon 49.1 ppb (47) 19.9 ppb (19) 61.1 ppb (59) 29.0 ppb (28) 32.4 ppb (31) 0.0 ppb (0) 2.0 ppb (2) 0.45 ppb (6) 29.0 μg/m3 (27) 8.0 μg/m3 (34) 59.0
 
April 19, 2021, 11 a.m. 24.4 ppb (24) 1.8 ppb (2) 19.8 ppb (19) 22.0 ppb (21) 19.3 ppb (19) 0.0 ppb (0) 8.0 ppb (8) 0.33 ppb (4) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
April 19, 2021, 10 a.m. 23.9 ppb (23) 1.4 ppb (2) 23.9 ppb (23) 22.0 ppb (21) 23.2 ppb (22) 0.0 ppb (0) 9.0 ppb (9) 0.3 ppb (4) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 9 a.m. 21.7 ppb (21) 1.2 ppb (2) 17.4 ppb (17) 20.0 ppb (19) 16.7 ppb (16) 0.0 ppb (0) 13.0 ppb (13) 0.32 ppb (4) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
April 19, 2021, 8 a.m. 26.0 ppb (25) 2.0 ppb (2) 26.1 ppb (25) 24.0 ppb (23) 24.2 ppb (23) 0.0 ppb (0) 9.0 ppb (9) 0.32 ppb (4) 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
April 19, 2021, 7 a.m. 21.0 ppb (20) 0.7 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 15.0 ppb (14) 0.22 ppb (3) 28.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
April 19, 2021, 6 a.m. 10.0 ppb (10) 0.0 ppb (0) 9.5 ppb (9) 10.0 ppb (10) 9.5 ppb (9) 0.0 ppb (0) 27.0 ppb (25) 0.17 ppb (3) 15.0 μg/m3 (14) 3.0 μg/m3 (13) 25.0
 
April 19, 2021, 5 a.m. 17.7 ppb (17) 1.0 ppb (1) 13.1 ppb (13) 17.0 ppb (17) 12.4 ppb (12) 0.0 ppb (0) 21.0 ppb (20) 0.18 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 20.0
 
April 19, 2021, 4 a.m. 13.0 ppb (13) 0.2 ppb (1) 12.8 ppb (13) 13.0 ppb (13) 12.6 ppb (12) 0.0 ppb (0) 28.0 ppb (26) 0.23 ppb (3) 16.0 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 3 a.m. 17.4 ppb (17) 0.5 ppb (1) 16.1 ppb (16) 17.0 ppb (17) 15.8 ppb (15) 0.0 ppb (0) 26.0 ppb (25) 0.29 ppb (4) 56.0 μg/m3 (52) 4.0 μg/m3 (17) 52.0
 
April 19, 2021, 2 a.m. 5.9 ppb (6) 0.1 ppb (1) 5.6 ppb (6) 6.0 ppb (6) 5.2 ppb (5) 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) 18.0 μg/m3 (17) 1.0 μg/m3 (5) 37.0
 
April 19, 2021, 1 a.m. 3.7 ppb (4) 0.6 ppb (1) 3.3 ppb (4) 3.0 ppb (3) 3.0 ppb (3) 0.0 ppb (0) 44.0 ppb (41) 0.14 ppb (2) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 41.0
 
April 19, 2021, midnight 3.4 ppb (4) 0.8 ppb (1) 2.8 ppb (3) 3.0 ppb (3) 2.4 ppb (3) 0.0 ppb (0) 48.0 ppb (45) 0.13 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 45.0
 
April 18, 2021, 11 p.m. 2.5 ppb (3) 0.6 ppb (1) 2.1 ppb (2) 2.0 ppb (2) 1.9 ppb (2) 0.0 ppb (0) 50.0 ppb (47) 0.13 ppb (2) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 47.0
 
April 18, 2021, 10 p.m. 2.6 ppb (3) 0.5 ppb (1) 2.4 ppb (3) 2.0 ppb (2) 2.1 ppb (2) 0.0 ppb (0) 53.0 ppb (50) 0.13 ppb (2) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 50.0
 
April 18, 2021, 9 p.m. 3.2 ppb (4) 0.6 ppb (1) 2.8 ppb (3) 2.0 ppb (2) 2.5 ppb (3) 0.0 ppb (0) 56.0 ppb (55) 0.14 ppb (2) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 55.0
 
April 18, 2021, 8 p.m. 3.7 ppb (4) 0.8 ppb (1) 3.0 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 55.0 ppb (51) 0.14 ppb (2) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 51.0
 
April 18, 2021, 7 p.m. 3.4 ppb (4) 0.7 ppb (1) 3.0 ppb (3) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 51.0 ppb (48) 0.13 ppb (2) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 48.0
 
April 18, 2021, 6 p.m. 3.7 ppb (4) 1.1 ppb (2) 3.1 ppb (3) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 47.0 ppb (44) 0.13 ppb (2) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 44.0
 
April 18, 2021, 5 p.m. 12.2 ppb (12) 4.1 ppb (4) 11.5 ppb (11) 8.0 ppb (8) 8.3 ppb (8) 0.0 ppb (0) 38.0 ppb (36) 0.17 ppb (3) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 36.0
 
April 18, 2021, 4 p.m. 17.5 ppb (17) 6.6 ppb (7) 16.6 ppb (16) 11.0 ppb (11) 11.3 ppb (11) 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) 22.0 μg/m3 (21) 4.0 μg/m3 (17) 28.0
 
April 18, 2021, 3 p.m. 12.5 ppb (12) 4.4 ppb (5) 11.6 ppb (11) 8.0 ppb (8) 8.3 ppb (8) 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 26.0
 
April 18, 2021, 2 p.m. 15.2 ppb (15) 4.2 ppb (4) 14.2 ppb (14) 11.0 ppb (11) 11.1 ppb (11) 0.0 ppb (0) 22.0 ppb (21) 0.18 ppb (3) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 18, 2021, 1 p.m. 19.1 ppb (19) 2.3 ppb (3) 18.0 ppb (17) 17.0 ppb (17) 16.2 ppb (16) 0.0 ppb (0) 15.0 ppb (14) 0.22 ppb (3) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
April 18, 2021, noon 13.2 ppb (13) 0.5 ppb (1) 12.6 ppb (12) 13.0 ppb (13) 12.1 ppb (12) 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 18.0
 
April 18, 2021, 11 a.m. 10.1 ppb (10) 0.2 ppb (1) 10.2 ppb (10) 10.0 ppb (10) 9.8 ppb (10) 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 21.0
 
April 18, 2021, 10 a.m. 9.6 ppb (10) 0.2 ppb (1) 9.2 ppb (9) 9.0 ppb (9) 9.0 ppb (9) 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
April 18, 2021, 9 a.m. 11.6 ppb (11) 0.2 ppb (1) 11.0 ppb (11) 11.0 ppb (11) 10.9 ppb (11) 0.0 ppb (0) 22.0 ppb (21) 0.18 ppb (3) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 18, 2021, 8 a.m. 19.2 ppb (19) 0.9 ppb (1) 17.9 ppb (17) 18.0 ppb (17) 17.5 ppb (17) 0.0 ppb (0) 16.0 ppb (15) 0.28 ppb (4) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 25.0
 
April 18, 2021, 7 a.m. 31.3 ppb (30) 2.6 ppb (3) 30.0 ppb (29) 29.0 ppb (28) 28.3 ppb (27) 0.0 ppb (0) 6.0 ppb (6) 0.47 ppb (6) 34.0 μg/m3 (32) 10.0 μg/m3 (42) 42.0
 
April 18, 2021, 6 a.m. 21.8 ppb (21) 0.7 ppb (1) 21.2 ppb (20) 21.0 ppb (20) 20.6 ppb (20) 0.0 ppb (0) 16.0 ppb (15) 0.39 ppb (5) 27.0 μg/m3 (25) 7.0 μg/m3 (30) 30.0
 
April 18, 2021, 5 a.m. 21.8 ppb (21) 0.8 ppb (1) 20.8 ppb (20) 21.0 ppb (20) 20.2 ppb (20) 0.0 ppb (0) 19.0 ppb (18) 0.35 ppb (4) 21.0 μg/m3 (20) 8.0 μg/m3 (34) 34.0
 
April 18, 2021, 4 a.m. 8.5 ppb (9) 0.0 ppb (0) 8.0 ppb (8) 8.0 ppb (8) 8.0 ppb (8) 0.0 ppb (0) 36.0 ppb (34) 0.2 ppb (3) 27.0 μg/m3 (25) 6.0 μg/m3 (25) 34.0
 
April 18, 2021, 3 a.m. 10.4 ppb (10) 0.3 ppb (1) 9.5 ppb (9) 10.0 ppb (10) 9.3 ppb (9) 0.0 ppb (0) 36.0 ppb (34) 0.21 ppb (3) 32.0 μg/m3 (30) 7.0 μg/m3 (30) 34.0
 
April 18, 2021, 2 a.m. 5.3 ppb (5) 0.3 ppb (1) 4.8 ppb (5) 5.0 ppb (5) 4.4 ppb (5) 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 40.0
 
April 18, 2021, 1 a.m. 4.4 ppb (5) 0.6 ppb (1) 4.0 ppb (4) 4.0 ppb (4) 3.6 ppb (4) 0.0 ppb (0) 46.0 ppb (43) 0.13 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 43.0
 
April 18, 2021, midnight 4.2 ppb (4) 0.9 ppb (1) 3.8 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 46.0 ppb (43) 0.13 ppb (2) 24.0 μg/m3 (23) 5.0 μg/m3 (21) 43.0
 
April 17, 2021, 11 p.m. 3.7 ppb (4) 0.9 ppb (1) 3.4 ppb (4) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 46.0 ppb (43) 0.12 ppb (2) 91.0 μg/m3 (69) 6.0 μg/m3 (25) 69.0
 
April 17, 2021, 10 p.m. 3.9 ppb (4) 1.1 ppb (2) 3.6 ppb (4) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 46.0 ppb (43) 0.11 ppb (2) 60.0 μg/m3 (54) 7.0 μg/m3 (30) 54.0
 
April 17, 2021, 9 p.m. 4.4 ppb (5) 1.2 ppb (2) 4.0 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 46.0 ppb (43) 0.12 ppb (2) 39.0 μg/m3 (37) 5.0 μg/m3 (21) 43.0
 
April 17, 2021, 8 p.m. 4.7 ppb (5) 1.3 ppb (2) 4.2 ppb (4) 3.0 ppb (3) 3.3 ppb (4) 0.0 ppb (0) 46.0 ppb (43) 0.12 ppb (2) 37.0 μg/m3 (35) 5.0 μg/m3 (21) 43.0
 
April 17, 2021, 7 p.m. 4.4 ppb (5) 1.3 ppb (2) 4.1 ppb (4) 3.0 ppb (3) 3.1 ppb (3) 0.0 ppb (0) 45.0 ppb (42) 0.12 ppb (2) 24.0 μg/m3 (23) 2.0 μg/m3 (9) 42.0
 
April 17, 2021, 6 p.m. 4.6 ppb (5) 1.3 ppb (2) 4.3 ppb (5) 3.0 ppb (3) 3.3 ppb (4) 0.0 ppb (0) 43.0 ppb (40) 0.13 ppb (2) 23.0 μg/m3 (22) 4.0 μg/m3 (17) 40.0
 
April 17, 2021, 5 p.m. 6.1 ppb (6) 1.9 ppb (2) 5.9 ppb (6) 4.0 ppb (4) 4.4 ppb (5) 0.0 ppb (0) 41.0 ppb (38) 0.12 ppb (2) 32.0 μg/m3 (30) 7.0 μg/m3 (30) 38.0
 
April 17, 2021, 4 p.m. 15.4 ppb (15) 5.6 ppb (6) 14.9 ppb (15) 10.0 ppb (10) 10.2 ppb (10) 0.0 ppb (0) 33.0 ppb (31) 0.21 ppb (3) 23.0 μg/m3 (22) 7.0 μg/m3 (30) 31.0
 
April 17, 2021, 3 p.m. 33.8 ppb (32) 14.3 ppb (14) 33.0 ppb (32) 19.0 ppb (18) 20.3 ppb (20) 0.0 ppb (0) 20.0 ppb (19) 0.36 ppb (5) 67.0 μg/m3 (57) 10.0 μg/m3 (42) 57.0
 
April 17, 2021, 2 p.m. 26.0 ppb (25) 9.1 ppb (9) 25.5 ppb (25) 17.0 ppb (17) 17.6 ppb (17) 0.0 ppb (0) 14.0 ppb (13) 0.33 ppb (4) 29.0 μg/m3 (27) 14.0 μg/m3 (55) 55.0
 
April 17, 2021, 1 p.m. 23.8 ppb (23) 3.4 ppb (4) 22.9 ppb (22) 20.0 ppb (19) 20.2 ppb (20) 0.0 ppb (0) 9.0 ppb (9) 0.31 ppb (4) 25.0 μg/m3 (24) 14.0 μg/m3 (55) 55.0
 
April 17, 2021, noon 19.4 ppb (19) 1.6 ppb (2) 19.1 ppb (19) 18.0 ppb (17) 17.8 ppb (17) 0.0 ppb (0) 11.0 ppb (11) 0.28 ppb (4) 28.0 μg/m3 (26) 15.0 μg/m3 (58) 58.0
 
April 17, 2021, 11 a.m. 15.4 ppb (15) 1.1 ppb (2) 14.4 ppb (14) 14.0 ppb (14) 13.9 ppb (14) 0.0 ppb (0) 17.0 ppb (16) 0.29 ppb (4) 27.0 μg/m3 (25) 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 10 a.m. 21.2 ppb (20) 1.4 ppb (2) 19.6 ppb (19) 20.0 ppb (19) 18.7 ppb (18) 0.0 ppb (0) 12.0 ppb (12) 0.36 ppb (5) 34.0 μg/m3 (32) 18.0 μg/m3 (64) 64.0
 
April 17, 2021, 9 a.m. 18.9 ppb (18) 1.2 ppb (2) 17.9 ppb (17) 18.0 ppb (17) 17.5 ppb (17) 0.0 ppb (0) 14.0 ppb (13) 0.47 ppb (6) 27.0 μg/m3 (25) 18.0 μg/m3 (64) 64.0
 
April 17, 2021, 8 a.m. 16.7 ppb (16) 0.7 ppb (1) 16.3 ppb (16) 16.0 ppb (16) 16.0 ppb (16) 0.0 ppb (0) 18.0 ppb (17) 0.29 ppb (4) 20.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 7 a.m. 17.6 ppb (17) 0.5 ppb (1) 16.6 ppb (16) 17.0 ppb (17) 16.4 ppb (16) 1.0 ppb (2) 20.0 ppb (19) 0.27 ppb (4) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
April 17, 2021, 6 a.m. 10.7 ppb (11) 0.1 ppb (1) 9.5 ppb (9) 10.0 ppb (10) 9.4 ppb (9) 0.0 ppb (0) 32.0 ppb (30) 0.19 ppb (3) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 30.0
 
April 17, 2021, 5 a.m. 13.3 ppb (13) 0.1 ppb (1) 12.6 ppb (12) 13.0 ppb (13) 12.4 ppb (12) 0.0 ppb (0) 28.0 ppb (26) 0.23 ppb (3) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 26.0
 
April 17, 2021, 4 a.m. 16.8 ppb (16) 1.0 ppb (1) 15.2 ppb (15) 16.0 ppb (16) 14.8 ppb (14) 0.0 ppb (0) 26.0 ppb (25) 0.25 ppb (3) 17.0 μg/m3 (16) 5.0 μg/m3 (21) 25.0
 
April 17, 2021, 3 a.m. 10.5 ppb (10) 0.1 ppb (1) 9.8 ppb (10) 10.0 ppb (10) 9.5 ppb (9) 0.0 ppb (0) 34.0 ppb (32) 0.22 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 32.0
 
April 17, 2021, 2 a.m. 5.4 ppb (6) 0.2 ppb (1) 5.0 ppb (5) 5.0 ppb (5) 4.8 ppb (5) 0.0 ppb (0) 42.0 ppb (39) 0.16 ppb (3) 15.0 μg/m3 (14) 2.0 μg/m3 (9) 39.0
 
April 17, 2021, 1 a.m. 3.8 ppb (4) 0.4 ppb (1) 3.6 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 46.0 ppb (43) 0.14 ppb (2) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 43.0
 
April 17, 2021, midnight 4.3 ppb (5) 0.7 ppb (1) 4.0 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 45.0 ppb (42) 0.14 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 42.0
 
April 16, 2021, 11 p.m. 6.7 ppb (7) 1.6 ppb (2) 5.9 ppb (6) 5.0 ppb (5) 4.8 ppb (5) 0.0 ppb (0) 42.0 ppb (39) 0.14 ppb (2) 22.0 μg/m3 (21) 4.0 μg/m3 (17) 39.0
 
April 16, 2021, 10 p.m. 5.2 ppb (5) 1.1 ppb (2) 4.6 ppb (5) 4.0 ppb (4) 3.6 ppb (4) 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 15.0 μg/m3 (14) 3.0 μg/m3 (13) 40.0
 
April 16, 2021, 9 p.m. 4.2 ppb (4) 1.0 ppb (1) 3.5 ppb (4) 3.0 ppb (3) 2.9 ppb (3) 0.0 ppb (0) 44.0 ppb (41) 0.13 ppb (2) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 41.0
 
April 16, 2021, 8 p.m. 3.3 ppb (4) 0.9 ppb (1) 2.5 ppb (3) 2.0 ppb (2) 2.2 ppb (3) 0.0 ppb (0) 45.0 ppb (42) 0.13 ppb (2) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 42.0
 
April 16, 2021, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) 3.8 ppb (4) 3.0 ppb (3) 3.1 ppb (3) 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 28.0 μg/m3 (26) 7.0 μg/m3 (30) 40.0
 
April 16, 2021, 6 p.m. 7.7 ppb (8) 2.4 ppb (3) 7.4 ppb (7) 5.0 ppb (5) 5.5 ppb (6) 0.0 ppb (0) 39.0 ppb (37) 0.15 ppb (2) 21.0 μg/m3 (20) 4.0 μg/m3 (17) 37.0
 
April 16, 2021, 5 p.m. 26.9 ppb (26) 11.1 ppb (11) 26.0 ppb (25) 16.0 ppb (16) 16.6 ppb (16) 1.0 ppb (2) 28.0 ppb (26) 0.27 ppb (4) 44.0 μg/m3 (41) 7.0 μg/m3 (30) 41.0
 
April 16, 2021, 4 p.m. 28.4 ppb (27) 12.8 ppb (13) 28.1 ppb (27) 16.0 ppb (16) 16.6 ppb (16) 0.0 ppb (0) 23.0 ppb (22) 0.3 ppb (4) 39.0 μg/m3 (37) 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 3 p.m. 59.3 ppb (57) 32.6 ppb (31) 58.6 ppb (56) 27.0 ppb (26) 28.2 ppb (27) 1.0 ppb (2) 12.0 ppb (12) 0.49 ppb (6) 64.0 μg/m3 (56) 11.0 μg/m3 (46) 57.0
 
April 16, 2021, 2 p.m. 31.4 ppb (30) 12.6 ppb (12) 30.3 ppb (29) 19.0 ppb (18) 19.3 ppb (19) 0.0 ppb (0) 13.0 ppb (13) 0.32 ppb (4) 24.0 μg/m3 (23) 5.0 μg/m3 (21) 30.0
 
April 16, 2021, 1 p.m. 20.9 ppb (20) 3.4 ppb (4) 20.0 ppb (19) 17.0 ppb (17) 17.1 ppb (17) 0.0 ppb (0) 12.0 ppb (12) 0.23 ppb (3) 32.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
April 16, 2021, noon 13.2 ppb (13) 0.7 ppb (1) 12.5 ppb (12) 12.0 ppb (12) 12.0 ppb (12) 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) 18.0 μg/m3 (17) 7.0 μg/m3 (30) 30.0
 
April 16, 2021, 11 a.m. 15.0 ppb (15) 0.8 ppb (1) 14.1 ppb (14) 14.0 ppb (14) 13.6 ppb (13) 0.0 ppb (0) 16.0 ppb (15) 0.17 ppb (3) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
April 16, 2021, 10 a.m. 9.8 ppb (10) 0.5 ppb (1) 9.1 ppb (9) 9.0 ppb (9) 8.7 ppb (9) 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 22.0
 
April 16, 2021, 9 a.m. 10.6 ppb (10) 0.3 ppb (1) 9.6 ppb (10) 10.0 ppb (10) 9.6 ppb (10) 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) 16.0 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
April 16, 2021, 8 a.m. 21.1 ppb (20) 0.7 ppb (1) 17.1 ppb (17) 20.0 ppb (19) 16.9 ppb (16) 0.0 ppb (0) 10.0 ppb (10) 0.26 ppb (4) 25.0 μg/m3 (24) 8.0 μg/m3 (34) 34.0
 
April 16, 2021, 7 a.m. 18.9 ppb (18) 0.7 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (15) 0.25 ppb (3) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
April 16, 2021, 6 a.m. 10.2 ppb (10) 0.0 ppb (0) 9.9 ppb (10) 10.0 ppb (10) 9.9 ppb (10) 0.0 ppb (0) 26.0 ppb (25) 0.17 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
April 16, 2021, 5 a.m. 11.8 ppb (12) 0.2 ppb (1) 11.3 ppb (11) 12.0 ppb (12) 11.1 ppb (11) 0.0 ppb (0) 27.0 ppb (25) 0.17 ppb (3) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
April 16, 2021, 4 a.m. 12.3 ppb (12) 0.2 ppb (1) 11.7 ppb (12) 12.0 ppb (12) 11.5 ppb (11) 0.0 ppb (0) 28.0 ppb (26) 0.19 ppb (3) 20.0 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
April 16, 2021, 3 a.m. 7.2 ppb (7) 0.0 ppb (0) 6.8 ppb (7) 7.0 ppb (7) 6.7 ppb (7) 0.0 ppb (0) 34.0 ppb (32) 0.17 ppb (3) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 32.0
 
April 16, 2021, 2 a.m. 4.5 ppb (5) 0.0 ppb (0) 4.4 ppb (5) 4.0 ppb (4) 4.3 ppb (5) 0.0 ppb (0) 39.0 ppb (37) 0.15 ppb (2) 22.0 μg/m3 (21) 5.0 μg/m3 (21) 37.0
 
April 16, 2021, 1 a.m. 3.8 ppb (4) 0.2 ppb (1) 3.6 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 41.0 ppb (38) 0.15 ppb (2) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 38.0
 
April 16, 2021, midnight 3.5 ppb (4) 0.3 ppb (1) 3.4 ppb (4) 3.0 ppb (3) 3.1 ppb (3) 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 22.0 μg/m3 (21) 3.0 μg/m3 (13) 39.0
 
April 15, 2021, 11 p.m. 2.9 ppb (3) 0.4 ppb (1) 2.7 ppb (3) 2.0 ppb (2) 2.3 ppb (3) 0.0 ppb (0) 44.0 ppb (41) 0.13 ppb (2) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 41.0
 
April 15, 2021, 10 p.m. 3.3 ppb (4) 0.5 ppb (1) 3.1 ppb (3) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 44.0 ppb (41) 0.13 ppb (2) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 41.0
 
April 15, 2021, 9 p.m. 3.0 ppb (3) 0.4 ppb (1) 3.1 ppb (3) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 43.0 ppb (40) 0.13 ppb (2) 22.0 μg/m3 (21) 4.0 μg/m3 (17) 40.0
 
April 15, 2021, 8 p.m. 2.4 ppb (3) 0.3 ppb (1) 2.5 ppb (3) 2.0 ppb (2) 2.1 ppb (2) 0.0 ppb (0) 46.0 ppb (43) 0.13 ppb (2) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 43.0
 
April 15, 2021, 7 p.m. 2.2 ppb (3) 0.3 ppb (1) 2.3 ppb (3) 2.0 ppb (2) 2.0 ppb (2) 0.0 ppb (0) 45.0 ppb (42) 0.13 ppb (2) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 42.0
 
April 15, 2021, 6 p.m. 6.4 ppb (7) 1.8 ppb (2) 6.2 ppb (6) 5.0 ppb (5) 4.7 ppb (5) 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 20.0 μg/m3 (19) 4.0 μg/m3 (17) 39.0
 
April 15, 2021, 5 p.m. 14.9 ppb (15) 5.1 ppb (5) 14.2 ppb (14) 10.0 ppb (10) 10.0 ppb (10) 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) 27.0 μg/m3 (25) 5.0 μg/m3 (21) 32.0
 
April 15, 2021, 4 p.m. 17.8 ppb (17) 6.8 ppb (7) 16.9 ppb (16) 11.0 ppb (11) 11.6 ppb (11) 0.0 ppb (0) 30.0 ppb (28) 0.23 ppb (3) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 28.0
 
April 15, 2021, 3 p.m. 28.7 ppb (28) 12.2 ppb (12) 26.9 ppb (26) 17.0 ppb (17) 16.6 ppb (16) 0.0 ppb (0) 21.0 ppb (20) 0.25 ppb (3) 30.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
April 15, 2021, 2 p.m. 53.7 ppb (51) 27.8 ppb (27) 50.4 ppb (48) 26.0 ppb (25) 25.8 ppb (25) 1.0 ppb (2) 10.0 ppb (10) 0.47 ppb (6) 39.0 μg/m3 (37) 7.0 μg/m3 (30) 51.0
 
April 15, 2021, 1 p.m. 59.5 ppb (57) 27.5 ppb (26) 52.6 ppb (50) 32.0 ppb (31) 32.9 ppb (32) 1.0 ppb (2) 1.0 ppb (1) 0.54 ppb (6) 32.0 μg/m3 (30) 5.0 μg/m3 (21) 57.0
 
April 15, 2021, noon 38.7 ppb (37) 9.3 ppb (9) 37.4 ppb (36) 29.0 ppb (28) 29.3 ppb (28) 0.0 ppb (0) 3.0 ppb (3) 0.45 ppb (6) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 37.0
 
April 15, 2021, 11 a.m. 39.4 ppb (38) 9.7 ppb (10) 33.2 ppb (32) 30.0 ppb (29) 27.6 ppb (27) 0.0 ppb (0) 4.0 ppb (4) 0.34 ppb (4) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 38.0
 
April 15, 2021, 10 a.m. 38.6 ppb (37) 8.3 ppb (8) 40.6 ppb (39) 30.0 ppb (29) 31.7 ppb (30) 0.0 ppb (0) 3.0 ppb (3) 0.33 ppb (4) 20.0 μg/m3 (19) 7.0 μg/m3 (30) 39.0
 
April 15, 2021, 9 a.m. 17.8 ppb (17) 1.0 ppb (1) 17.2 ppb (17) 17.0 ppb (17) 16.4 ppb (16) 0.0 ppb (0) 12.0 ppb (12) 0.25 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 17.0
 
April 15, 2021, 8 a.m. 10.0 ppb (10) 0.2 ppb (1) 9.5 ppb (9) 10.0 ppb (10) 9.4 ppb (9) 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 14.0 μg/m3 (13) 2.0 μg/m3 (9) 22.0
 
April 15, 2021, 7 a.m. 7.6 ppb (8) 0.1 ppb (1) 7.0 ppb (7) 7.0 ppb (7) 6.8 ppb (7) 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 26.0
 
April 15, 2021, 6 a.m. 5.7 ppb (6) 0.0 ppb (0) 5.5 ppb (6) 6.0 ppb (6) 5.4 ppb (6) 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 30.0
 
April 15, 2021, 5 a.m. 6.0 ppb (6) 0.1 ppb (1) 5.8 ppb (6) 6.0 ppb (6) 5.7 ppb (6) 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 31.0
 
April 15, 2021, 4 a.m. 12.7 ppb (12) 0.4 ppb (1) 12.2 ppb (12) 12.0 ppb (12) 11.8 ppb (12) 0.0 ppb (0) 26.0 ppb (25) 0.22 ppb (3) 18.0 μg/m3 (17) 3.0 μg/m3 (13) 25.0
 
April 15, 2021, 3 a.m. 10.9 ppb (11) 0.2 ppb (1) 10.0 ppb (10) 11.0 ppb (11) 9.7 ppb (10) 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) 22.0 μg/m3 (21) 4.0 μg/m3 (17) 28.0
 
April 15, 2021, 2 a.m. 3.9 ppb (4) 0.1 ppb (1) 3.6 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 37.0
 
April 15, 2021, 1 a.m. 3.4 ppb (4) 0.2 ppb (1) 3.3 ppb (4) 3.0 ppb (3) 3.0 ppb (3) 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 17.0 μg/m3 (16) 2.0 μg/m3 (9) 38.0
 
April 15, 2021, midnight 4.3 ppb (5) 0.7 ppb (1) 4.1 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 15.0 μg/m3 (14) -1.0 μg/m3 (0) 38.0
 
April 14, 2021, 11 p.m. 4.7 ppb (5) 1.0 ppb (1) 4.2 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 40.0 ppb (38) 0.13 ppb (2) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 38.0
 
April 14, 2021, 10 p.m. 3.4 ppb (4) 0.7 ppb (1) 3.2 ppb (4) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 41.0 ppb (38) 0.13 ppb (2) 19.0 μg/m3 (18) 2.0 μg/m3 (9) 38.0
 
April 14, 2021, 9 p.m. 2.8 ppb (3) 0.6 ppb (1) 3.0 ppb (3) 2.0 ppb (2) 2.4 ppb (3) 0.0 ppb (0) 41.0 ppb (38) 0.13 ppb (2) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 38.0
 
April 14, 2021, 8 p.m. 3.4 ppb (4) 0.8 ppb (1) 3.2 ppb (4) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 41.0 ppb (38) 0.13 ppb (2) 17.0 μg/m3 (16) 4.0 μg/m3 (17) 38.0
 
April 14, 2021, 7 p.m. 4.0 ppb (4) 0.9 ppb (1) 3.9 ppb (4) 3.0 ppb (3) 3.1 ppb (3) 0.0 ppb (0) 39.0 ppb (37) 0.13 ppb (2) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 37.0
 
April 14, 2021, 6 p.m. 4.0 ppb (4) 0.9 ppb (1) 3.9 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 39.0 ppb (37) 0.13 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (30) 37.0
 
April 14, 2021, 5 p.m. 3.8 ppb (4) 1.0 ppb (1) 3.4 ppb (4) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 39.0 ppb (37) 0.12 ppb (2) 19.0 μg/m3 (18) 3.0 μg/m3 (13) 37.0
 
April 14, 2021, 4 p.m. 3.6 ppb (4) 0.9 ppb (1) 3.4 ppb (4) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 24.0 μg/m3 (23) 2.0 μg/m3 (9) 35.0
 
April 14, 2021, 3 p.m. 6.8 ppb (7) 1.4 ppb (2) 6.4 ppb (7) 5.0 ppb (5) 5.3 ppb (5) 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 30.0 μg/m3 (28) 2.0 μg/m3 (9) 30.0
 
April 14, 2021, 2 p.m. 7.3 ppb (7) 1.0 ppb (1) 6.7 ppb (7) 6.0 ppb (6) 6.0 ppb (6) 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 24.0 μg/m3 (23) 3.0 μg/m3 (13) 30.0
 
April 14, 2021, 1 p.m. 6.8 ppb (7) 0.4 ppb (1) 6.5 ppb (7) 6.0 ppb (6) 6.0 ppb (6) 0.0 ppb (0) 31.0 ppb (29) 0.14 ppb (2) 27.0 μg/m3 (25) 5.0 μg/m3 (21) 29.0
 
April 14, 2021, noon 4.1 ppb (4) 0.1 ppb (1) 3.9 ppb (4) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) 32.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
April 14, 2021, 11 a.m. 5.0 ppb (5) 0.2 ppb (1) 4.9 ppb (5) 5.0 ppb (5) 4.7 ppb (5) 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) 27.0 μg/m3 (25) 3.0 μg/m3 (13) 27.0
 
April 14, 2021, 10 a.m. 3.9 ppb (4) 0.2 ppb (1) 3.6 ppb (4) 4.0 ppb (4) 3.5 ppb (4) 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) 20.0 μg/m3 (19) 2.0 μg/m3 (9) 32.0
 
April 14, 2021, 9 a.m. 3.9 ppb (4) 0.0 ppb (0) 3.9 ppb (4) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) 14.0 μg/m3 (13) 3.0 μg/m3 (13) 29.0
 
April 14, 2021, 8 a.m. 3.1 ppb (3) 0.0 ppb (0) 3.1 ppb (3) 3.0 ppb (3) 3.1 ppb (3) 0.0 ppb (0) 37.0 ppb (35) 0.11 ppb (2) 26.0 μg/m3 (25) 5.0 μg/m3 (21) 35.0
 
April 14, 2021, 7 a.m. 4.5 ppb (5) 0.1 ppb (1) 4.4 ppb (5) 4.0 ppb (4) 4.2 ppb (4) 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 33.0
 
April 14, 2021, 6 a.m. 4.8 ppb (5) 0.7 ppb (1) 4.5 ppb (5) 4.0 ppb (4) 4.2 ppb (4) 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 32.0
 
April 14, 2021, 5 a.m. 7.1 ppb (7) 0.1 ppb (1) 6.9 ppb (7) 7.0 ppb (7) 6.7 ppb (7) 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) 20.0 μg/m3 (19) 4.0 μg/m3 (17) 31.0
 
April 14, 2021, 4 a.m. 2.9 ppb (3) 0.0 ppb (0) 2.9 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 11.0 μg/m3 (11) 0.0 μg/m3 (0) 35.0
 
April 14, 2021, 3 a.m. 3.4 ppb (4) 0.1 ppb (1) 3.3 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 34.0
 
April 14, 2021, 2 a.m. 4.2 ppb (4) 0.2 ppb (1) 4.0 ppb (4) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 33.0
 
April 14, 2021, 1 a.m. 3.4 ppb (4) 0.2 ppb (1) 3.2 ppb (4) 3.0 ppb (3) 3.0 ppb (3) 0.0 ppb (0) 38.0 ppb (36) 0.12 ppb (2) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 36.0
 
April 14, 2021, midnight 3.3 ppb (4) 0.0 ppb (0) 3.3 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 40.0 ppb (38) 0.12 ppb (2) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 38.0
 
April 13, 2021, 11 p.m. 2.3 ppb (3) 0.1 ppb (1) 2.4 ppb (3) 2.0 ppb (2) 2.3 ppb (3) 0.0 ppb (0) 41.0 ppb (38) 0.12 ppb (2) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 38.0
 
April 13, 2021, 10 p.m. 4.4 ppb (5) 0.8 ppb (1) 4.2 ppb (4) 4.0 ppb (4) 3.7 ppb (4) 0.0 ppb (0) 41.0 ppb (38) 0.12 ppb (2) 27.0 μg/m3 (25) 3.0 μg/m3 (13) 38.0
 
April 13, 2021, 9 p.m. 5.8 ppb (6) 1.7 ppb (2) 5.3 ppb (5) 4.0 ppb (4) 4.0 ppb (4) 0.0 ppb (0) 40.0 ppb (38) 0.12 ppb (2) 30.0 μg/m3 (28) 2.0 μg/m3 (9) 38.0
 
April 13, 2021, 8 p.m. 4.6 ppb (5) 1.4 ppb (2) 4.5 ppb (5) 3.0 ppb (3) 3.4 ppb (4) 0.0 ppb (0) 41.0 ppb (38) 0.12 ppb (2) 35.0 μg/m3 (33) 2.0 μg/m3 (9) 38.0
 
April 13, 2021, 7 p.m. 4.3 ppb (5) 1.2 ppb (2) 4.1 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 41.0 ppb (38) 0.13 ppb (2) 25.0 μg/m3 (24) 2.0 μg/m3 (9) 38.0
 
April 13, 2021, 6 p.m. 5.0 ppb (5) 1.3 ppb (2) 5.0 ppb (5) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 40.0 ppb (38) 0.13 ppb (2) 25.0 μg/m3 (24) 3.0 μg/m3 (13) 38.0
 
April 13, 2021, 5 p.m. 6.7 ppb (7) 2.0 ppb (2) 6.5 ppb (7) 5.0 ppb (5) 4.7 ppb (5) 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) 25.0 μg/m3 (24) 4.0 μg/m3 (17) 36.0
 
April 13, 2021, 4 p.m. 10.5 ppb (10) 3.1 ppb (3) 10.2 ppb (10) 7.0 ppb (7) 7.5 ppb (8) 0.0 ppb (0) 35.0 ppb (33) 0.17 ppb (3) 38.0 μg/m3 (36) 6.0 μg/m3 (25) 36.0
 
April 13, 2021, 3 p.m. N/A N/A 38.3 ppb (37) N/A 24.4 ppb (24) 1.0 ppb (2) 21.0 ppb (20) 0.36 ppb (5) 53.0 μg/m3 (50) 8.0 μg/m3 (34) 50.0
 
April 13, 2021, 2 p.m. N/A N/A 42.0 ppb (40) N/A 29.5 ppb (28) 1.0 ppb (2) 12.0 ppb (12) 0.41 ppb (5) 49.0 μg/m3 (46) 7.0 μg/m3 (30) 46.0
 
April 13, 2021, 1 p.m. N/A N/A 49.5 ppb (47) N/A 36.4 ppb (35) 1.0 ppb (2) 3.0 ppb (3) 0.47 ppb (6) 33.0 μg/m3 (31) 7.0 μg/m3 (30) 47.0
 
April 13, 2021, noon 49.5 ppb (47) 13.2 ppb (13) 47.4 ppb (45) 36.0 ppb (34) 35.9 ppb (34) 1.0 ppb (2) 3.0 ppb (3) 0.4 ppb (5) 34.0 μg/m3 (32) 6.0 μg/m3 (25) 47.0
 
April 13, 2021, 11 a.m. 44.0 ppb (42) 12.8 ppb (13) 43.2 ppb (41) 31.0 ppb (30) 31.4 ppb (30) 1.0 ppb (2) 1.0 ppb (1) 0.43 ppb (5) 28.0 μg/m3 (26) 6.0 μg/m3 (25) 42.0
 
April 13, 2021, 10 a.m. 23.5 ppb (23) 1.4 ppb (2) 21.6 ppb (21) 22.0 ppb (21) 21.0 ppb (20) 0.0 ppb (0) 9.0 ppb (9) 0.26 ppb (4) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 23.0