ID: 1406

AQSQID: 410470041

Site Name: Salem - State Hospital

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

Updated: Sept. 25, 2020, 8:39 a.m.

Location: Salem (23rd St Neast), OR

Reporting: True, Located: True

Current AQI: 19.0

Salem (23rd St Neast) OR, US: 44.943114, -123.005934

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 4.8 μg/m3 (20) 20.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.8 μg/m3 (16) 23.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.5 μg/m3 (15) 23.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 3.5 μg/m3 (15) 22.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.7 μg/m3 (15) 21.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.4 μg/m3 (18) 23.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 3.8 μg/m3 (16) 18.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 3.3 μg/m3 (14) 15.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.9 μg/m3 (12) 14.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 3.1 μg/m3 (13) 15.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 2.7 μg/m3 (11) 15.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.3 μg/m3 (10) 16.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 2.0 μg/m3 (8) 19.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.7 μg/m3 (7) 21.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.4 μg/m3 (6) 23.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.4 μg/m3 (6) 26.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.4 μg/m3 (6) 23.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 1.4 μg/m3 (6) 13.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 1.7 μg/m3 (7) 15.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.2 μg/m3 (9) 14.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 6.1 μg/m3 (25) 25.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 14.4 μg/m3 (55) 55.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 16.8 μg/m3 (60) 60.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 8.2 μg/m3 (34) 34.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 6.1 μg/m3 (25) 25.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 7.4 μg/m3 (31) 31.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 5.1 μg/m3 (21) 21.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 3.5 μg/m3 (15) 15.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.9 μg/m3 (12) 16.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.5 μg/m3 (10) 14.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 2.6 μg/m3 (11) 12.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 4.2 μg/m3 (18) 18.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.5 μg/m3 (10) 14.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.2 μg/m3 (9) 23.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.8 μg/m3 (8) 18.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 1.9 μg/m3 (8) 15.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.8 μg/m3 (8) 14.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 2.1 μg/m3 (9) 9.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 2.4 μg/m3 (10) 10.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 2.0 μg/m3 (8) 10.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 2.4 μg/m3 (10) 10.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 2.5 μg/m3 (10) 10.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 2.6 μg/m3 (11) 13.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 2.9 μg/m3 (12) 12.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 22.2 μg/m3 (72) 72.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 27.0 μg/m3 (82) 82.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 30.0 μg/m3 (88) 88.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 22.9 μg/m3 (73) 73.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 15.4 μg/m3 (57) 57.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.6 μg/m3 (28) 28.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 6.5 μg/m3 (27) 27.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 8.1 μg/m3 (34) 34.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 8.3 μg/m3 (35) 35.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.9 μg/m3 (20) 22.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.5 μg/m3 (19) 28.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 4.9 μg/m3 (20) 28.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 6.8 μg/m3 (28) 28.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 23.2 μg/m3 (74) 74.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 23.5 μg/m3 (74) 74.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 9.4 μg/m3 (39) 39.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.8 μg/m3 (20) 20.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.4 μg/m3 (18) 18.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 3.9 μg/m3 (16) 16.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 4.9 μg/m3 (20) 20.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 3.9 μg/m3 (16) 16.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 3.4 μg/m3 (14) 17.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.6 μg/m3 (11) 23.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.6 μg/m3 (11) 23.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.2 μg/m3 (13) 24.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.2 μg/m3 (18) 24.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 4.4 μg/m3 (18) 21.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 4.4 μg/m3 (18) 18.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 7.2 μg/m3 (30) 30.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 8.4 μg/m3 (35) 35.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 6.3 μg/m3 (26) 26.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 8.7 μg/m3 (36) 36.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 6.3 μg/m3 (26) 26.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 4.3 μg/m3 (18) 18.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 5.1 μg/m3 (21) 21.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 4.1 μg/m3 (17) 17.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 3.9 μg/m3 (16) 16.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 3.6 μg/m3 (15) 15.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 3.6 μg/m3 (15) 15.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.7 μg/m3 (11) 20.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 2.8 μg/m3 (12) 15.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 33.5 μg/m3 (96) 96.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 35.0 μg/m3 (99) 99.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 40.6 μg/m3 (113) 113.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 33.1 μg/m3 (95) 95.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 35.6 μg/m3 (100) 100.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 58.0 μg/m3 (151) 151.0
 
Sept. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 67.5 μg/m3 (156) 156.0
 
Sept. 18, 2020, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 73.4 μg/m3 (159) 159.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 69.9 μg/m3 (158) 158.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 91.5 μg/m3 (169) 169.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 159.2 μg/m3 (209) 209.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 248.7 μg/m3 (298) 298.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 256.6 μg/m3 (306) 306.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 294.9 μg/m3 (344) 344.0
 
Sept. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 331.7 μg/m3 (381) 381.0
 
Sept. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 336.2 μg/m3 (386) 386.0
 
Sept. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 324.9 μg/m3 (374) 374.0
 
Sept. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 218.4 μg/m3 (268) 268.0
 
Sept. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 216.3 μg/m3 (266) 266.0
 
Sept. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 277.0 μg/m3 (326) 326.0
 
Sept. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 305.2 μg/m3 (355) 355.0
 
Sept. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 286.0 μg/m3 (336) 336.0
 
Sept. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 258.9 μg/m3 (308) 308.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 264.7 μg/m3 (314) 314.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 276.1 μg/m3 (326) 326.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 290.7 μg/m3 (340) 340.0
 
Sept. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 307.3 μg/m3 (357) 357.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 306.4 μg/m3 (356) 356.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 365.6 μg/m3 (410) 410.0