ID: 739

AQSQID: 440071010

Site Name: E Providence

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

Updated: July 30, 2021, 7:59 p.m.

Location: Rumford (Rumford), RI

Reporting: True, Located: True

Current AQI: 43.0

Rumford (Rumford) RI, US: 41.840302, -71.361702

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 30, 2021, 6 p.m. 0.8 ppb (1) 0.1 ppb (1) 0.9 ppb (1) 1.0 ppb (1) 0.8 ppb (1) 0.0 ppb (0) 46.0 ppb (43) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 43.0
 
July 30, 2021, 5 p.m. 1.0 ppb (1) 0.1 ppb (1) 1.2 ppb (2) 1.0 ppb (1) 1.1 ppb (2) 0.0 ppb (0) 46.0 ppb (43) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 43.0
 
July 30, 2021, 4 p.m. 1.5 ppb (2) 0.2 ppb (1) 1.8 ppb (2) 1.0 ppb (1) 1.6 ppb (2) 0.0 ppb (0) 47.0 ppb (44) 0.22 ppb (3) N/A 8.0 μg/m3 (34) 44.0
 
July 30, 2021, 3 p.m. 4.4 ppb (5) 1.4 ppb (2) 3.8 ppb (4) 3.0 ppb (3) 2.4 ppb (3) 0.0 ppb (0) 46.0 ppb (43) 0.32 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
July 30, 2021, 2 p.m. 2.2 ppb (3) 0.4 ppb (1) 2.5 ppb (3) 2.0 ppb (2) 2.1 ppb (2) 0.0 ppb (0) 46.0 ppb (43) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 43.0
 
July 30, 2021, 1 p.m. 1.9 ppb (2) 0.4 ppb (1) 2.1 ppb (2) 2.0 ppb (2) 1.7 ppb (2) 0.0 ppb (0) 43.0 ppb (40) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 40.0
 
July 30, 2021, noon 2.1 ppb (2) 0.4 ppb (1) 2.2 ppb (3) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 41.0 ppb (38) 0.23 ppb (3) N/A 8.0 μg/m3 (34) 38.0
 
July 30, 2021, 11 a.m. 2.7 ppb (3) 0.4 ppb (1) 2.8 ppb (3) 2.0 ppb (2) 2.4 ppb (3) 0.0 ppb (0) 39.0 ppb (37) 0.23 ppb (3) N/A 6.0 μg/m3 (25) 37.0
 
July 30, 2021, 10 a.m. 2.3 ppb (3) 0.1 ppb (1) 2.4 ppb (3) 2.0 ppb (2) 2.2 ppb (3) 0.0 ppb (0) 39.0 ppb (37) 0.23 ppb (3) N/A 3.0 μg/m3 (13) 37.0
 
July 30, 2021, 9 a.m. 2.4 ppb (3) 0.0 ppb (0) 2.4 ppb (3) 2.0 ppb (2) 2.4 ppb (3) 0.0 ppb (0) 41.0 ppb (38) 0.23 ppb (3) N/A 8.0 μg/m3 (34) 38.0
 
July 30, 2021, 8 a.m. 1.8 ppb (2) 0.0 ppb (0) 1.9 ppb (2) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 40.0 ppb (38) 0.23 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 30, 2021, 7 a.m. N/A N/A 1.5 ppb (2) N/A 1.5 ppb (2) N/A 42.0 ppb (39) N/A N/A 16.0 μg/m3 (60) 60.0
 
July 30, 2021, 6 a.m. N/A N/A 2.0 ppb (2) N/A 2.0 ppb (2) N/A 37.0 ppb (35) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 30, 2021, 5 a.m. N/A N/A 0.9 ppb (1) N/A 0.9 ppb (1) N/A 37.0 ppb (35) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 30, 2021, 4 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 37.0
 
July 30, 2021, 3 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 30, 2021, 2 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 30, 2021, 1 a.m. 0.5 ppb (1) 0.0 ppb (0) 0.5 ppb (1) 1.0 ppb (1) 0.4 ppb (1) 0.0 ppb (0) 35.0 ppb (33) 0.18 ppb (3) N/A 7.0 μg/m3 (30) 33.0
 
July 30, 2021, midnight 1.0 ppb (1) 0.1 ppb (1) 1.0 ppb (1) 1.0 ppb (1) 0.8 ppb (1) 0.0 ppb (0) 30.0 ppb (28) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
July 29, 2021, 11 p.m. 1.2 ppb (2) 0.1 ppb (1) 1.2 ppb (2) 1.0 ppb (1) 1.1 ppb (2) 0.0 ppb (0) 32.0 ppb (30) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 30.0
 
July 29, 2021, 10 p.m. 1.1 ppb (2) 0.1 ppb (1) 1.1 ppb (2) 1.0 ppb (1) 1.0 ppb (1) 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 27.0
 
July 29, 2021, 9 p.m. 1.6 ppb (2) 0.2 ppb (1) 1.6 ppb (2) 1.0 ppb (1) 1.4 ppb (2) 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 8 p.m. 1.3 ppb (2) 0.2 ppb (1) 1.4 ppb (2) 1.0 ppb (1) 1.2 ppb (2) 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 26.0
 
July 29, 2021, 7 p.m. 1.4 ppb (2) 0.2 ppb (1) 1.5 ppb (2) 1.0 ppb (1) 1.3 ppb (2) 0.0 ppb (0) 29.0 ppb (27) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
July 29, 2021, 6 p.m. 1.6 ppb (2) 0.2 ppb (1) 1.7 ppb (2) 1.0 ppb (1) 1.4 ppb (2) 0.0 ppb (0) 30.0 ppb (28) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
July 29, 2021, 5 p.m. 2.1 ppb (2) 0.2 ppb (1) 2.2 ppb (3) 2.0 ppb (2) 1.9 ppb (2) 0.0 ppb (0) 31.0 ppb (29) 0.15 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
July 29, 2021, 4 p.m. 1.7 ppb (2) 0.3 ppb (1) 1.9 ppb (2) 1.0 ppb (1) 1.5 ppb (2) 0.0 ppb (0) 34.0 ppb (32) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 32.0
 
July 29, 2021, 3 p.m. 2.1 ppb (2) 0.4 ppb (1) 2.3 ppb (3) 2.0 ppb (2) 1.9 ppb (2) 0.0 ppb (0) 34.0 ppb (32) 0.19 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 2 p.m. 1.4 ppb (2) 0.2 ppb (1) 1.6 ppb (2) 1.0 ppb (1) 1.4 ppb (2) 0.0 ppb (0) 35.0 ppb (33) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 1 p.m. 3.1 ppb (3) 0.6 ppb (1) 3.3 ppb (4) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A 6.0 μg/m3 (25) 29.0
 
July 29, 2021, noon 6.7 ppb (7) 1.3 ppb (2) 6.9 ppb (7) 5.0 ppb (5) 5.6 ppb (6) 0.0 ppb (0) 24.0 ppb (23) 0.24 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 11 a.m. 9.8 ppb (10) 2.0 ppb (2) 10.2 ppb (10) 8.0 ppb (8) 8.2 ppb (8) 0.0 ppb (0) 17.0 ppb (16) 0.27 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 10 a.m. 9.0 ppb (9) 0.9 ppb (1) 9.6 ppb (10) 8.0 ppb (8) 8.6 ppb (9) 0.0 ppb (0) N/A 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 29, 2021, 9 a.m. 5.8 ppb (6) 0.1 ppb (1) 6.1 ppb (6) 6.0 ppb (6) 6.0 ppb (6) 0.0 ppb (0) N/A 0.23 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 29, 2021, 8 a.m. 4.4 ppb (5) 0.0 ppb (0) 4.5 ppb (5) 4.0 ppb (4) 4.4 ppb (5) 0.0 ppb (0) 18.0 ppb (17) 0.22 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 29, 2021, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) 3.8 ppb (4) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 19.0 ppb (18) 0.22 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 29, 2021, 6 a.m. 5.4 ppb (6) 0.1 ppb (1) 5.2 ppb (5) 5.0 ppb (5) 5.1 ppb (5) 0.0 ppb (0) 17.0 ppb (16) 0.23 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
July 29, 2021, 5 a.m. 7.5 ppb (8) 0.1 ppb (1) 7.5 ppb (8) 7.0 ppb (7) 7.4 ppb (7) 0.0 ppb (0) 12.0 ppb (12) 0.25 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 29, 2021, 4 a.m. 8.8 ppb (9) 0.4 ppb (1) 8.2 ppb (8) 8.0 ppb (8) 8.1 ppb (8) 0.0 ppb (0) 10.0 ppb (10) 0.27 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 3 a.m. 8.3 ppb (8) 0.2 ppb (1) 7.6 ppb (8) 8.0 ppb (8) 7.5 ppb (8) 0.0 ppb (0) 10.0 ppb (10) 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 29, 2021, 2 a.m. 8.1 ppb (8) 0.2 ppb (1) 8.8 ppb (9) 8.0 ppb (8) 8.6 ppb (9) 0.0 ppb (0) 11.0 ppb (11) 0.31 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
July 29, 2021, 1 a.m. 3.9 ppb (4) 0.1 ppb (1) 3.5 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 18.0 ppb (17) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 29, 2021, midnight 3.5 ppb (4) 0.1 ppb (1) 3.2 ppb (4) 4.0 ppb (4) 3.1 ppb (3) 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 28, 2021, 11 p.m. 2.1 ppb (2) 0.1 ppb (1) 2.0 ppb (2) 2.0 ppb (2) 1.9 ppb (2) 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 28, 2021, 10 p.m. 1.5 ppb (2) 0.1 ppb (1) 1.5 ppb (2) 2.0 ppb (2) 1.4 ppb (2) 0.0 ppb (0) 37.0 ppb (35) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 28, 2021, 9 p.m. 1.6 ppb (2) 0.1 ppb (1) 1.7 ppb (2) 2.0 ppb (2) 1.6 ppb (2) 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 28, 2021, 8 p.m. 1.8 ppb (2) 0.2 ppb (1) 2.0 ppb (2) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 42.0 ppb (39) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 7 p.m. 2.3 ppb (3) 0.3 ppb (1) 2.5 ppb (3) 2.0 ppb (2) 2.2 ppb (3) 0.0 ppb (0) 39.0 ppb (37) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 6 p.m. 2.4 ppb (3) 0.3 ppb (1) 2.6 ppb (3) 2.0 ppb (2) 2.2 ppb (3) 0.0 ppb (0) 37.0 ppb (35) 0.22 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 5 p.m. 2.7 ppb (3) 0.5 ppb (1) 3.0 ppb (3) 2.0 ppb (2) 2.5 ppb (3) 0.0 ppb (0) 36.0 ppb (34) 0.24 ppb (3) N/A 7.0 μg/m3 (30) 34.0
 
July 28, 2021, 4 p.m. 3.6 ppb (4) 0.8 ppb (1) 3.9 ppb (4) 3.0 ppb (3) 3.0 ppb (3) 0.0 ppb (0) 32.0 ppb (30) 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
July 28, 2021, 3 p.m. 4.2 ppb (4) 0.7 ppb (1) 4.4 ppb (5) 3.0 ppb (3) 3.6 ppb (4) 0.0 ppb (0) 33.0 ppb (31) 0.26 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
July 28, 2021, 2 p.m. 3.9 ppb (4) 0.6 ppb (1) 4.0 ppb (4) 3.0 ppb (3) 3.4 ppb (4) 0.0 ppb (0) 31.0 ppb (29) 0.26 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 1 p.m. 3.9 ppb (4) 0.4 ppb (1) 4.0 ppb (4) 4.0 ppb (4) 3.5 ppb (4) 0.0 ppb (0) 24.0 ppb (23) 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 28, 2021, noon 2.9 ppb (3) 0.2 ppb (1) 2.9 ppb (3) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 25.0 ppb (24) 0.25 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 28, 2021, 11 a.m. 2.8 ppb (3) 0.2 ppb (1) 2.8 ppb (3) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 24.0 ppb (23) 0.25 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 10 a.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) 23.0 ppb (22) 0.26 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
July 28, 2021, 9 a.m. 4.3 ppb (5) 0.0 ppb (0) 4.4 ppb (5) 4.0 ppb (4) 4.4 ppb (5) 0.0 ppb (0) 24.0 ppb (23) 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 28, 2021, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.1 ppb (4) 4.0 ppb (4) 4.1 ppb (4) 0.0 ppb (0) 26.0 ppb (25) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 7 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) 26.0 ppb (25) 0.23 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 28, 2021, 6 a.m. 2.8 ppb (3) 0.0 ppb (0) 2.8 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 27.0 ppb (25) 0.22 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 28, 2021, 5 a.m. 2.4 ppb (3) 0.0 ppb (0) 2.4 ppb (3) 2.0 ppb (2) 2.4 ppb (3) 0.0 ppb (0) 32.0 ppb (30) 0.23 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 28, 2021, 4 a.m. 2.3 ppb (3) 0.0 ppb (0) 2.3 ppb (3) 2.0 ppb (2) 2.3 ppb (3) 0.0 ppb (0) 35.0 ppb (33) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 28, 2021, 3 a.m. 5.0 ppb (5) 0.0 ppb (0) 5.1 ppb (5) 5.0 ppb (5) 5.1 ppb (5) 0.0 ppb (0) 36.0 ppb (34) 0.26 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 2 a.m. 4.5 ppb (5) 0.0 ppb (0) 4.5 ppb (5) 5.0 ppb (5) 4.5 ppb (5) 0.0 ppb (0) 37.0 ppb (35) 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 28, 2021, 1 a.m. 3.3 ppb (4) 0.0 ppb (0) 3.2 ppb (4) 3.0 ppb (3) 3.2 ppb (4) 0.0 ppb (0) 45.0 ppb (42) 0.23 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 28, 2021, midnight 2.2 ppb (3) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) 2.0 ppb (2) 0.0 ppb (0) 49.0 ppb (46) 0.22 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 27, 2021, 11 p.m. 3.9 ppb (4) 0.0 ppb (0) 4.1 ppb (4) 4.0 ppb (4) 4.0 ppb (4) 0.0 ppb (0) 55.0 ppb (51) 0.26 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
July 27, 2021, 10 p.m. 2.4 ppb (3) 0.1 ppb (1) 2.7 ppb (3) 2.0 ppb (2) 2.6 ppb (3) 0.0 ppb (0) 65.0 ppb (84) 0.29 ppb (4) N/A 20.0 μg/m3 (68) 84.0
 
July 27, 2021, 9 p.m. 2.6 ppb (3) 0.2 ppb (1) 3.0 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 62.0 ppb (74) 0.27 ppb (4) N/A 20.0 μg/m3 (68) 74.0
 
July 27, 2021, 8 p.m. 2.0 ppb (2) 0.2 ppb (1) 2.3 ppb (3) 2.0 ppb (2) 2.1 ppb (2) 0.0 ppb (0) 59.0 ppb (65) 0.24 ppb (3) N/A 14.0 μg/m3 (55) 65.0
 
July 27, 2021, 7 p.m. 1.3 ppb (2) 0.1 ppb (1) 1.5 ppb (2) 1.0 ppb (1) 1.4 ppb (2) 0.0 ppb (0) 57.0 ppb (58) 0.23 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 27, 2021, 6 p.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) 0.21 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 27, 2021, 5 p.m. 1.1 ppb (2) 0.1 ppb (1) 1.3 ppb (2) 1.0 ppb (1) 1.2 ppb (2) 0.0 ppb (0) 46.0 ppb (43) 0.21 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 27, 2021, 4 p.m. 1.6 ppb (2) 0.2 ppb (1) 1.9 ppb (2) 1.0 ppb (1) 1.8 ppb (2) 0.0 ppb (0) 48.0 ppb (45) 0.22 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 27, 2021, 3 p.m. 2.7 ppb (3) 0.3 ppb (1) 3.1 ppb (3) 2.0 ppb (2) 2.8 ppb (3) 0.0 ppb (0) 53.0 ppb (50) 0.28 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
July 27, 2021, 2 p.m. 2.7 ppb (3) 0.3 ppb (1) 3.0 ppb (3) 2.0 ppb (2) 2.7 ppb (3) 0.0 ppb (0) 48.0 ppb (45) 0.28 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
July 27, 2021, 1 p.m. 4.0 ppb (4) 1.5 ppb (2) 4.0 ppb (4) 3.0 ppb (3) 3.4 ppb (4) 0.0 ppb (0) 41.0 ppb (38) 0.48 ppb (6) N/A 23.0 μg/m3 (74) 74.0
 
July 27, 2021, noon 8.1 ppb (8) 2.2 ppb (3) 7.6 ppb (8) 6.0 ppb (6) 5.7 ppb (6) 0.0 ppb (0) 31.0 ppb (29) 0.82 ppb (10) N/A 28.0 μg/m3 (85) 85.0
 
July 27, 2021, 11 a.m. 7.1 ppb (7) 0.9 ppb (1) 7.3 ppb (7) 6.0 ppb (6) 6.4 ppb (7) 0.0 ppb (0) 27.0 ppb (25) 0.37 ppb (5) N/A 27.0 μg/m3 (83) 83.0
 
July 27, 2021, 10 a.m. 7.6 ppb (8) 0.4 ppb (1) 7.1 ppb (7) 7.0 ppb (7) 6.8 ppb (7) 0.0 ppb (0) 24.0 ppb (23) 0.37 ppb (5) N/A 30.0 μg/m3 (89) 89.0
 
July 27, 2021, 9 a.m. 7.4 ppb (7) 0.0 ppb (0) 7.3 ppb (7) 7.0 ppb (7) 7.3 ppb (7) 0.0 ppb (0) N/A 0.33 ppb (4) N/A 32.0 μg/m3 (93) 93.0
 
July 27, 2021, 8 a.m. 5.7 ppb (6) 0.0 ppb (0) 5.8 ppb (6) 6.0 ppb (6) 5.7 ppb (6) 0.0 ppb (0) 28.0 ppb (26) 0.34 ppb (4) N/A 34.0 μg/m3 (98) 98.0
 
July 27, 2021, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.0 ppb (4) 4.0 ppb (4) 4.0 ppb (4) 0.0 ppb (0) 31.0 ppb (29) 0.37 ppb (5) N/A 35.0 μg/m3 (100) 100.0
 
July 27, 2021, 6 a.m. 3.7 ppb (4) 0.0 ppb (0) 3.4 ppb (4) 4.0 ppb (4) 3.3 ppb (4) 0.0 ppb (0) 33.0 ppb (31) 0.41 ppb (5) N/A 44.0 μg/m3 (122) 122.0
 
July 27, 2021, 5 a.m. 5.1 ppb (5) 0.1 ppb (1) 4.3 ppb (5) 5.0 ppb (5) 4.3 ppb (5) 0.0 ppb (0) 31.0 ppb (29) 0.46 ppb (6) N/A 55.0 μg/m3 (150) 150.0
 
July 27, 2021, 4 a.m. 3.7 ppb (4) 0.0 ppb (0) 3.4 ppb (4) 4.0 ppb (4) 3.3 ppb (4) 0.0 ppb (0) 35.0 ppb (33) 0.47 ppb (6) N/A 51.0 μg/m3 (140) 140.0
 
July 27, 2021, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.2 ppb (4) 4.0 ppb (4) 4.1 ppb (4) 0.0 ppb (0) 38.0 ppb (36) 0.54 ppb (6) N/A 57.0 μg/m3 (152) 152.0
 
July 27, 2021, 2 a.m. 77.8 ppb (77) 76.9 ppb (76) N/A 1.0 ppb (1) N/A 26.0 ppb (38) 40.0 ppb (38) 2.63 ppb (30) N/A 65.0 μg/m3 (156) 156.0
 
July 27, 2021, 1 a.m. 4.1 ppb (4) 0.0 ppb (0) 4.4 ppb (5) 4.0 ppb (4) 4.3 ppb (5) 0.0 ppb (0) 44.0 ppb (41) 0.64 ppb (7) N/A 82.0 μg/m3 (165) 165.0
 
July 27, 2021, midnight 4.2 ppb (4) 0.0 ppb (0) 4.6 ppb (5) 4.0 ppb (4) 4.6 ppb (5) 0.0 ppb (0) 51.0 ppb (48) 0.67 ppb (8) N/A 87.0 μg/m3 (168) 168.0
 
July 26, 2021, 11 p.m. 3.1 ppb (3) 0.0 ppb (0) 3.5 ppb (4) 3.0 ppb (3) 3.4 ppb (4) 0.0 ppb (0) 58.0 ppb (61) 0.61 ppb (7) N/A 80.0 μg/m3 (164) 164.0
 
July 26, 2021, 10 p.m. 2.3 ppb (3) 0.0 ppb (0) 2.7 ppb (3) 2.0 ppb (2) 2.6 ppb (3) 0.0 ppb (0) 65.0 ppb (84) 0.61 ppb (7) N/A 83.0 μg/m3 (166) 166.0
 
July 26, 2021, 9 p.m. 2.3 ppb (3) 0.1 ppb (1) 2.7 ppb (3) 2.0 ppb (2) 2.6 ppb (3) 0.0 ppb (0) 66.0 ppb (87) 0.56 ppb (7) N/A 76.0 μg/m3 (162) 162.0
 
July 26, 2021, 8 p.m. 2.2 ppb (3) 0.1 ppb (1) 2.7 ppb (3) 2.0 ppb (2) 2.6 ppb (3) 0.0 ppb (0) 69.0 ppb (97) 0.58 ppb (7) N/A 82.0 μg/m3 (165) 165.0
 
July 26, 2021, 7 p.m. 2.0 ppb (2) 0.1 ppb (1) 2.6 ppb (3) 2.0 ppb (2) 2.4 ppb (3) 0.0 ppb (0) 68.0 ppb (94) 0.53 ppb (6) N/A 72.0 μg/m3 (160) 160.0
 
July 26, 2021, 6 p.m. 1.1 ppb (2) 0.1 ppb (1) 1.4 ppb (2) 1.0 ppb (1) 1.2 ppb (2) 0.0 ppb (0) 54.0 ppb (50) 0.3 ppb (4) N/A 26.0 μg/m3 (81) 81.0
 
July 26, 2021, 5 p.m. 1.5 ppb (2) 0.2 ppb (1) 1.9 ppb (2) 1.0 ppb (1) 1.7 ppb (2) 0.0 ppb (0) 55.0 ppb (51) 0.3 ppb (4) N/A 27.0 μg/m3 (83) 83.0
 
July 26, 2021, 4 p.m. 1.4 ppb (2) 0.1 ppb (1) 1.7 ppb (2) 1.0 ppb (1) 1.5 ppb (2) 0.0 ppb (0) 54.0 ppb (50) 0.31 ppb (4) N/A 26.0 μg/m3 (81) 81.0
 
July 26, 2021, 3 p.m. 2.6 ppb (3) 0.3 ppb (1) 3.0 ppb (3) 2.0 ppb (2) 2.7 ppb (3) 0.0 ppb (0) 56.0 ppb (55) 0.34 ppb (4) N/A 27.0 μg/m3 (83) 83.0
 
July 26, 2021, 2 p.m. 2.7 ppb (3) 0.3 ppb (1) 3.1 ppb (3) 2.0 ppb (2) 2.8 ppb (3) 0.0 ppb (0) 52.0 ppb (49) 0.36 ppb (5) N/A 33.0 μg/m3 (95) 95.0
 
July 26, 2021, 1 p.m. N/A N/A 3.8 ppb (4) N/A 3.3 ppb (4) N/A 43.0 ppb (40) N/A N/A 33.0 μg/m3 (95) 95.0
 
July 26, 2021, noon N/A N/A 5.7 ppb (6) N/A 4.6 ppb (5) N/A 30.0 ppb (28) N/A N/A 26.0 μg/m3 (81) 81.0
 
July 26, 2021, 11 a.m. N/A N/A 13.7 ppb (13) N/A 10.9 ppb (11) N/A 16.0 ppb (15) N/A N/A 18.0 μg/m3 (64) 64.0
 
July 26, 2021, 10 a.m. 11.8 ppb (12) 1.8 ppb (2) 12.7 ppb (12) 10.0 ppb (10) 11.1 ppb (11) 0.0 ppb (0) 8.0 ppb (8) 0.29 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
July 26, 2021, 9 a.m. 4.5 ppb (5) 0.1 ppb (1) 4.7 ppb (5) 4.0 ppb (4) 4.6 ppb (5) 0.0 ppb (0) 17.0 ppb (16) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 26, 2021, 8 a.m. 4.5 ppb (5) 0.1 ppb (1) 4.8 ppb (5) 5.0 ppb (5) 4.8 ppb (5) 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 26, 2021, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.2 ppb (4) 4.0 ppb (4) 4.2 ppb (4) 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 26, 2021, 6 a.m. N/A N/A 2.9 ppb (3) N/A 2.9 ppb (3) N/A 22.0 ppb (21) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 26, 2021, 5 a.m. N/A N/A 3.9 ppb (4) N/A 3.8 ppb (4) N/A 23.0 ppb (22) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 26, 2021, 4 a.m. 4.4 ppb (5) 0.1 ppb (1) 4.5 ppb (5) 4.0 ppb (4) 4.5 ppb (5) 0.0 ppb (0) 24.0 ppb (23) 0.19 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 26, 2021, 3 a.m. 3.5 ppb (4) 0.0 ppb (0) 3.6 ppb (4) 4.0 ppb (4) 3.5 ppb (4) 0.0 ppb (0) 26.0 ppb (25) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 26, 2021, 2 a.m. 2.5 ppb (3) 0.0 ppb (0) 2.6 ppb (3) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 30.0 ppb (28) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 26, 2021, 1 a.m. 2.8 ppb (3) 0.0 ppb (0) 2.9 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 26, 2021, midnight 2.5 ppb (3) 0.0 ppb (0) 2.6 ppb (3) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 33.0 ppb (31) 0.18 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 25, 2021, 11 p.m. 2.1 ppb (2) 0.1 ppb (1) 2.2 ppb (3) 2.0 ppb (2) 2.2 ppb (3) 0.0 ppb (0) 34.0 ppb (32) 0.19 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 25, 2021, 10 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) 35.0 ppb (33) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 25, 2021, 9 p.m. 2.2 ppb (3) 0.1 ppb (1) 2.3 ppb (3) 2.0 ppb (2) 2.1 ppb (2) 0.0 ppb (0) 36.0 ppb (34) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 25, 2021, 8 p.m. 1.8 ppb (2) 0.2 ppb (1) 1.9 ppb (2) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 39.0 ppb (37) 0.19 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 25, 2021, 7 p.m. 2.3 ppb (3) 0.2 ppb (1) 2.4 ppb (3) 2.0 ppb (2) 2.2 ppb (3) 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 25, 2021, 6 p.m. 1.7 ppb (2) 0.2 ppb (1) 1.8 ppb (2) 2.0 ppb (2) 1.6 ppb (2) 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 25, 2021, 5 p.m. 2.0 ppb (2) 0.2 ppb (1) 2.0 ppb (2) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 42.0 ppb (39) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 25, 2021, 4 p.m. 3.0 ppb (3) 0.2 ppb (1) 3.0 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 25, 2021, 3 p.m. 2.2 ppb (3) 0.1 ppb (1) 2.2 ppb (3) 2.0 ppb (2) 2.0 ppb (2) 0.0 ppb (0) 41.0 ppb (38) 0.19 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 25, 2021, 2 p.m. 1.8 ppb (2) 0.2 ppb (1) 1.8 ppb (2) 2.0 ppb (2) 1.6 ppb (2) 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 25, 2021, 1 p.m. 2.2 ppb (3) 0.1 ppb (1) 2.2 ppb (3) 2.0 ppb (2) 2.0 ppb (2) 0.0 ppb (0) 40.0 ppb (38) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 25, 2021, noon 2.8 ppb (3) 0.2 ppb (1) 2.6 ppb (3) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 38.0 ppb (36) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 25, 2021, 11 a.m. 3.9 ppb (4) 0.1 ppb (1) 4.1 ppb (4) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 25, 2021, 10 a.m. 2.7 ppb (3) 0.0 ppb (0) 2.6 ppb (3) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 41.0 ppb (38) 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 25, 2021, 9 a.m. 2.2 ppb (3) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) 2.0 ppb (2) 0.0 ppb (0) 34.0 ppb (32) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 25, 2021, 8 a.m. 1.9 ppb (2) 0.0 ppb (0) 1.9 ppb (2) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 33.0 ppb (31) 0.18 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 25, 2021, 7 a.m. 2.1 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) 1.9 ppb (2) 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 25, 2021, 6 a.m. 4.1 ppb (4) 0.0 ppb (0) 4.2 ppb (4) 4.0 ppb (4) 4.1 ppb (4) 0.0 ppb (0) 30.0 ppb (28) 0.21 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
July 25, 2021, 5 a.m. 3.5 ppb (4) 0.0 ppb (0) 3.5 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 31.0 ppb (29) 0.23 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 25, 2021, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) 4.8 ppb (5) 5.0 ppb (5) 4.7 ppb (5) 0.0 ppb (0) 30.0 ppb (28) 0.25 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
July 25, 2021, 3 a.m. 4.6 ppb (5) 0.0 ppb (0) 4.6 ppb (5) 5.0 ppb (5) 4.5 ppb (5) 0.0 ppb (0) 34.0 ppb (32) 0.25 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
July 25, 2021, 2 a.m. 5.2 ppb (5) 0.0 ppb (0) 5.2 ppb (5) 5.0 ppb (5) 5.2 ppb (5) 0.0 ppb (0) 39.0 ppb (37) 0.24 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 25, 2021, 1 a.m. 6.7 ppb (7) 0.0 ppb (0) 7.0 ppb (7) 7.0 ppb (7) 6.9 ppb (7) 0.0 ppb (0) 39.0 ppb (37) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
July 25, 2021, midnight 4.9 ppb (5) 0.0 ppb (0) 4.6 ppb (5) 5.0 ppb (5) 4.6 ppb (5) 0.0 ppb (0) 42.0 ppb (39) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 24, 2021, 11 p.m. 3.8 ppb (4) 0.1 ppb (1) 3.4 ppb (4) 4.0 ppb (4) 3.3 ppb (4) 0.0 ppb (0) 45.0 ppb (42) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 24, 2021, 10 p.m. 2.8 ppb (3) 0.1 ppb (1) 2.9 ppb (3) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) N/A 10.0 μg/m3 (42) 47.0
 
July 24, 2021, 9 p.m. 2.6 ppb (3) 0.1 ppb (1) 2.7 ppb (3) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 50.0 ppb (47) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 47.0
 
July 24, 2021, 8 p.m. 3.0 ppb (3) 0.2 ppb (1) 2.9 ppb (3) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 49.0 ppb (46) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 24, 2021, 7 p.m. 1.3 ppb (2) 0.1 ppb (1) 1.3 ppb (2) 1.0 ppb (1) 1.2 ppb (2) 0.0 ppb (0) 40.0 ppb (38) 0.19 ppb (3) N/A 6.0 μg/m3 (25) 38.0
 
July 24, 2021, 6 p.m. 1.1 ppb (2) 0.1 ppb (1) 1.1 ppb (2) 1.0 ppb (1) 1.0 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) N/A 7.0 μg/m3 (30) 37.0
 
July 24, 2021, 5 p.m. 0.9 ppb (1) 0.1 ppb (1) 1.0 ppb (1) 1.0 ppb (1) 0.9 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 24, 2021, 4 p.m. 1.1 ppb (2) 0.1 ppb (1) 1.2 ppb (2) 1.0 ppb (1) 1.0 ppb (1) 0.0 ppb (0) 38.0 ppb (36) 0.16 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 24, 2021, 3 p.m. 1.5 ppb (2) 0.2 ppb (1) 1.6 ppb (2) 1.0 ppb (1) 1.4 ppb (2) 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 24, 2021, 2 p.m. 2.6 ppb (3) 0.5 ppb (1) 2.9 ppb (3) 2.0 ppb (2) 2.4 ppb (3) 0.0 ppb (0) 35.0 ppb (33) 0.18 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 24, 2021, 1 p.m. 2.5 ppb (3) 0.5 ppb (1) 2.7 ppb (3) 2.0 ppb (2) 2.2 ppb (3) 0.0 ppb (0) 31.0 ppb (29) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 24, 2021, noon 3.1 ppb (3) 0.7 ppb (1) 3.2 ppb (4) 2.0 ppb (2) 2.4 ppb (3) 0.0 ppb (0) 25.0 ppb (24) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 24, 2021, 11 a.m. 4.6 ppb (5) 1.2 ppb (2) 4.7 ppb (5) 3.0 ppb (3) 3.4 ppb (4) 0.0 ppb (0) 15.0 ppb (14) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 24, 2021, 10 a.m. 7.6 ppb (8) 2.2 ppb (3) 7.5 ppb (8) 5.0 ppb (5) 5.3 ppb (5) 0.0 ppb (0) 7.0 ppb (7) 0.34 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
July 24, 2021, 9 a.m. 6.2 ppb (6) 0.4 ppb (1) 6.3 ppb (6) 6.0 ppb (6) 5.9 ppb (6) 0.0 ppb (0) 5.0 ppb (5) 0.28 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
July 24, 2021, 8 a.m. 7.0 ppb (7) 0.2 ppb (1) 7.0 ppb (7) 7.0 ppb (7) 6.8 ppb (7) 0.0 ppb (0) 5.0 ppb (5) 0.29 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
July 24, 2021, 7 a.m. 7.8 ppb (8) 0.2 ppb (1) 8.1 ppb (8) 8.0 ppb (8) 7.9 ppb (8) 0.0 ppb (0) 5.0 ppb (5) 0.3 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
July 24, 2021, 6 a.m. 6.5 ppb (7) 0.1 ppb (1) 6.8 ppb (7) 6.0 ppb (6) 6.7 ppb (7) 0.0 ppb (0) 10.0 ppb (10) 0.29 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
July 24, 2021, 5 a.m. 7.3 ppb (7) 0.1 ppb (1) 7.5 ppb (8) 7.0 ppb (7) 7.4 ppb (7) 0.0 ppb (0) 8.0 ppb (8) 0.3 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
July 24, 2021, 4 a.m. 8.1 ppb (8) 0.2 ppb (1) 8.3 ppb (8) 8.0 ppb (8) 8.1 ppb (8) 0.0 ppb (0) 7.0 ppb (7) 0.29 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
July 24, 2021, 3 a.m. 6.6 ppb (7) 0.1 ppb (1) 7.1 ppb (7) 7.0 ppb (7) 7.0 ppb (7) 0.0 ppb (0) 13.0 ppb (13) 0.25 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 24, 2021, 2 a.m. 4.9 ppb (5) 0.0 ppb (0) 5.1 ppb (5) 5.0 ppb (5) 5.0 ppb (5) 0.0 ppb (0) 19.0 ppb (18) 0.22 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 24, 2021, 1 a.m. 4.3 ppb (5) 0.0 ppb (0) 4.4 ppb (5) 4.0 ppb (4) 4.3 ppb (5) 0.0 ppb (0) 23.0 ppb (22) 0.21 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 24, 2021, midnight 6.1 ppb (6) 0.0 ppb (0) 6.1 ppb (6) 6.0 ppb (6) 6.1 ppb (6) 0.0 ppb (0) 28.0 ppb (26) 0.27 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
July 23, 2021, 11 p.m. 4.2 ppb (4) 0.1 ppb (1) 4.2 ppb (4) 4.0 ppb (4) 4.1 ppb (4) 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 23, 2021, 10 p.m. 3.2 ppb (4) 0.2 ppb (1) 3.2 ppb (4) 3.0 ppb (3) 3.0 ppb (3) 0.0 ppb (0) 34.0 ppb (32) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 9 p.m. 2.7 ppb (3) 0.2 ppb (1) 2.7 ppb (3) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 39.0 ppb (37) 0.17 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 23, 2021, 8 p.m. 1.1 ppb (2) 0.1 ppb (1) 1.1 ppb (2) 1.0 ppb (1) 1.0 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.15 ppb (2) N/A 8.0 μg/m3 (34) 37.0
 
July 23, 2021, 7 p.m. 1.3 ppb (2) 0.1 ppb (1) 1.3 ppb (2) 1.0 ppb (1) 1.1 ppb (2) 0.0 ppb (0) 39.0 ppb (37) 0.15 ppb (2) N/A 11.0 μg/m3 (46) 46.0