ID: 2424

AQSQID: 300270006

Site Name: Lewistown

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

Updated: July 15, 2020, 12:39 a.m.

Location: Lewistown (E Aztec Dr), MT

Reporting: True, Located: True

Current AQI: 29.0

Lewistown (E Aztec Dr) MT, US: 47.048537, -109.455315

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) -1.2 μg/m3 (0) 29.0
 
July 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) -2.7 μg/m3 (0) 28.0
 
July 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 28.0
 
July 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 0.6 μg/m3 (2) 28.0
 
July 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 0.7 μg/m3 (3) 28.0
 
July 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 0.2 μg/m3 (1) 28.0
 
July 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 27.0
 
July 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 18.0 μg/m3 (16) 4.6 μg/m3 (19) 25.0
 
July 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 0.5 μg/m3 (2) 18.0
 
July 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 4.0 μg/m3 (4) 3.1 μg/m3 (13) 14.0
 
July 14, 2020, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 11.0
 
July 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 19.0
 
July 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 14.0
 
July 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
July 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 10.0 μg/m3 (9) 3.5 μg/m3 (15) 15.0
 
July 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 13.0 μg/m3 (12) -3.3 μg/m3 (0) 15.0
 
July 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 18.0 μg/m3 (16) 4.3 μg/m3 (18) 18.0
 
July 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 24.0 μg/m3 (22) 1.3 μg/m3 (5) 22.0
 
July 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 23.0 μg/m3 (21) 4.4 μg/m3 (18) 21.0
 
July 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 38.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
July 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 17.0 μg/m3 (15) 3.1 μg/m3 (13) 28.0
 
July 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 30.0
 
July 14, 2020, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 0.0 μg/m3 (0) 31.0
 
July 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 16.0 μg/m3 (15) -0.3 μg/m3 (0) 31.0
 
July 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) -0.9 μg/m3 (0) 32.0
 
July 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 31.0
 
July 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 31.0
 
July 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 2.3 μg/m3 (10) 32.0
 
July 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 7.0 μg/m3 (6) -0.3 μg/m3 (0) 32.0
 
July 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A -1.0 μg/m3 (0) 2.2 μg/m3 (9) 31.0
 
July 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.2 μg/m3 (13) 31.0
 
July 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 0.0 μg/m3 (0) 5.5 μg/m3 (23) 31.0
 
July 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 9.0 μg/m3 (8) 0.9 μg/m3 (4) 29.0
 
July 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) 1.7 μg/m3 (7) 25.0
 
July 13, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 25.0
 
July 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 5.2 μg/m3 (22) 24.0
 
July 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 2.8 μg/m3 (12) 25.0
 
July 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 7.4 μg/m3 (31) 31.0
 
July 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 9.0 μg/m3 (8) 2.7 μg/m3 (11) 29.0
 
July 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 12.0 μg/m3 (11) 7.6 μg/m3 (32) 32.0
 
July 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 29.0
 
July 13, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 32.0
 
July 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 4.2 μg/m3 (18) 34.0
 
July 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 25.0 μg/m3 (23) 5.8 μg/m3 (24) 35.0
 
July 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 19.0 μg/m3 (17) 4.2 μg/m3 (18) 32.0
 
July 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 18.0 μg/m3 (16) 4.2 μg/m3 (18) 25.0
 
July 13, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 35.0 μg/m3 (32) 10.1 μg/m3 (42) 42.0
 
July 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 27.0 μg/m3 (25) 8.2 μg/m3 (34) 34.0
 
July 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 13.0 μg/m3 (12) 5.3 μg/m3 (22) 32.0
 
July 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 30.0
 
July 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 3.5 μg/m3 (15) 31.0
 
July 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 32.0
 
July 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 20.0 μg/m3 (18) 4.0 μg/m3 (17) 33.0
 
July 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 18.0 μg/m3 (16) 5.9 μg/m3 (25) 33.0
 
July 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 6.0 μg/m3 (5) 1.1 μg/m3 (5) 32.0
 
July 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 11.0 μg/m3 (10) -0.6 μg/m3 (0) 32.0
 
July 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 12.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
July 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 14.0 μg/m3 (13) 1.5 μg/m3 (6) 26.0
 
July 12, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 6.2 μg/m3 (26) 26.0
 
July 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 26.0
 
July 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 28.0
 
July 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) 3.3 μg/m3 (14) 25.0
 
July 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 19.0 μg/m3 (17) -3.4 μg/m3 (0) 22.0
 
July 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 20.0 μg/m3 (18) N/A 19.0
 
July 12, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 25.0
 
July 12, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 9.0 μg/m3 (8) -3.3 μg/m3 (0) 22.0
 
July 12, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (9) 22.0
 
July 12, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 24.0 μg/m3 (22) 4.7 μg/m3 (20) 28.0
 
July 12, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 20.0 μg/m3 (18) 2.9 μg/m3 (12) 33.0
 
July 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 35.0
 
July 12, 2020, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 12.0 μg/m3 (11) 5.2 μg/m3 (22) 36.0
 
July 11, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 9.0 μg/m3 (8) 11.7 μg/m3 (49) 49.0
 
July 11, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 9.0 μg/m3 (8) 2.7 μg/m3 (11) 35.0
 
July 11, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 35.0
 
July 11, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 35.0
 
July 11, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 0.0 μg/m3 (0) 2.9 μg/m3 (12) 32.0
 
July 11, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 3.0 μg/m3 (3) 4.1 μg/m3 (17) 31.0
 
July 11, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
July 11, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 18.0 μg/m3 (16) 3.4 μg/m3 (14) 31.0
 
July 11, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) 0.3 μg/m3 (1) 25.0
 
July 11, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 0.0 μg/m3 (0) -3.4 μg/m3 (0) 18.0
 
July 11, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 3.5 μg/m3 (15) 15.0
 
July 11, 2020, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (4) 13.0
 
July 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) 2.8 μg/m3 (12) 14.0
 
July 11, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
July 11, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
July 11, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 4.0 μg/m3 (4) 5.2 μg/m3 (22) 22.0
 
July 11, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 2.0 μg/m3 (2) 9.8 μg/m3 (41) 41.0
 
July 11, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 3.6 μg/m3 (15) 16.0
 
July 11, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 14.0 μg/m3 (13) 3.3 μg/m3 (14) 17.0
 
July 11, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 1.4 μg/m3 (6) 17.0
 
July 11, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 2.5 μg/m3 (10) 23.0
 
July 11, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 26.0
 
July 11, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 2.0 μg/m3 (2) 3.2 μg/m3 (13) 28.0
 
July 11, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 19.0 μg/m3 (17) 0.4 μg/m3 (2) 30.0
 
July 10, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 29.0 μg/m3 (26) 0.0 μg/m3 (0) 31.0
 
July 10, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 17.0 μg/m3 (15) 5.9 μg/m3 (25) 29.0
 
July 10, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) 0.3 μg/m3 (1) 29.0
 
July 10, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 30.0
 
July 10, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A -2.0 μg/m3 (0) -3.4 μg/m3 (0) 31.0
 
July 10, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 6.0 μg/m3 (5) -0.2 μg/m3 (0) 32.0
 
July 10, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A -3.0 μg/m3 (0) 1.3 μg/m3 (5) 28.0
 
July 10, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 2.7 μg/m3 (11) 25.0
 
July 10, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 26.0 μg/m3 (24) 1.5 μg/m3 (6) 25.0
 
July 10, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 15.0 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
July 10, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 3.0 μg/m3 (3) 4.2 μg/m3 (18) 22.0
 
July 10, 2020, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 5.4 μg/m3 (23) 23.0
 
July 10, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 10.0 μg/m3 (9) 2.3 μg/m3 (10) 18.0
 
July 10, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
July 10, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 4.1 μg/m3 (17) 18.0
 
July 10, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 20.0
 
July 10, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 24.0 μg/m3 (22) 10.8 μg/m3 (45) 45.0
 
July 10, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 1.1 μg/m3 (5) 22.0
 
July 10, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 5.2 μg/m3 (22) 22.0
 
July 10, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 10.0 μg/m3 (9) 3.1 μg/m3 (13) 22.0
 
July 10, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
July 10, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 2.5 μg/m3 (10) 22.0
 
July 10, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 23.0
 
July 10, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) 2.6 μg/m3 (11) 26.0
 
July 9, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 29.0
 
July 9, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 28.0
 
July 9, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 2.9 μg/m3 (12) 28.0
 
July 9, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 26.0
 
July 9, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 25.0
 
July 9, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 2.3 μg/m3 (10) 10.0
 
July 9, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.5 μg/m3 (6) 6.0
 
July 9, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 4.5 μg/m3 (19) 19.0
 
July 9, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A -2.0 μg/m3 (0) -1.9 μg/m3 (0) 20.0
 
July 9, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A -1.0 μg/m3 (0) 14.0
 
July 9, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A -4.0 μg/m3 (0) -0.3 μg/m3 (0) 8.0
 
July 9, 2020, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 3.0 μg/m3 (3) 4.4 μg/m3 (18) 18.0
 
July 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 12.0
 
July 9, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 12.0
 
July 9, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 11.0
 
July 9, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 10.0 μg/m3 (9) -0.5 μg/m3 (0) 11.0
 
July 9, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 10.0 μg/m3 (9) N/A 11.0
 
July 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 14.0
 
July 9, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 9.0 μg/m3 (8) 0.9 μg/m3 (4) 12.0
 
July 9, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) 0.9 μg/m3 (4) 18.0
 
July 9, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 17.0
 
July 9, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 22.0
 
July 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 16.0 μg/m3 (15) 2.2 μg/m3 (9) 27.0
 
July 9, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 28.0
 
July 8, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 3.8 μg/m3 (16) 28.0
 
July 8, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 23.0 μg/m3 (21) 5.1 μg/m3 (21) 29.0
 
July 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 30.0
 
July 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 8.0 μg/m3 (7) 1.2 μg/m3 (5) 32.0
 
July 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 12.0 μg/m3 (11) 5.6 μg/m3 (23) 33.0
 
July 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 18.0 μg/m3 (16) 2.3 μg/m3 (10) 35.0
 
July 8, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 0.5 μg/m3 (2) 33.0
 
July 8, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 17.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
July 8, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 21.0 μg/m3 (19) 5.0 μg/m3 (21) 30.0
 
July 8, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 15.0 μg/m3 (14) 1.5 μg/m3 (6) 28.0
 
July 8, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 29.0 μg/m3 (26) 2.7 μg/m3 (11) 26.0
 
July 8, 2020, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 13.0 μg/m3 (12) 6.7 μg/m3 (28) 28.0
 
July 8, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 21.0 μg/m3 (19) 4.0 μg/m3 (17) 21.0
 
July 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
July 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 12.0 μg/m3 (11) 2.4 μg/m3 (10) 21.0
 
July 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 19.0 μg/m3 (17) 11.6 μg/m3 (48) 48.0
 
July 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 16.0 μg/m3 (15) 6.8 μg/m3 (28) 28.0
 
July 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 20.0
 
July 8, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 9.0 μg/m3 (8) 7.1 μg/m3 (30) 30.0
 
July 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 15.0 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
July 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 18.0 μg/m3 (16) 7.9 μg/m3 (33) 33.0
 
July 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 7.0 μg/m3 (6) 5.7 μg/m3 (24) 24.0
 
July 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 23.0
 
July 8, 2020, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 8.0 μg/m3 (7) 4.8 μg/m3 (20) 25.0
 
July 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 0.0 μg/m3 (0) -0.7 μg/m3 (0) 22.0