AQSQID: 300830002

Site Name: Sidney 201

Location: Lambert (Montana Hwy 201), MT

Reporting: True, Located: True

Current AQI: 25.0

Lambert (Montana Hwy 201) MT, US: 47.8679, -104.676864

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 25.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 26.0
 
March 29, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 6.0 μg/m3 (5) -0.7 μg/m3 (0) 26.0
 
March 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 2.0 μg/m3 (2) 1.4 μg/m3 (6) 28.0
 
March 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 28.0
 
March 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 28.0
 
March 29, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) 4.1 μg/m3 (17) 32.0
 
March 29, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 0.0 μg/m3 (0) 2.9 μg/m3 (12) 35.0
 
March 28, 2020, 11 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) 1.9 μg/m3 (8) 35.0
 
March 28, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 35.0
 
March 28, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 36.0
 
March 28, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 0.0 μg/m3 (0) 1.3 μg/m3 (5) 35.0
 
March 28, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 35.0
 
March 28, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 34.0
 
March 28, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (15) 30.0
 
March 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.9 μg/m3 (8) 8.0
 
March 28, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -4.4 μg/m3 (0) 5.0
 
March 28, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 4.2 μg/m3 (18) 18.0
 
March 28, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 0.9 μg/m3 (4) 28.0
 
March 28, 2020, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 25.0
 
March 28, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 26.0
 
March 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 5.0 μg/m3 (5) 5.6 μg/m3 (23) 26.0
 
March 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 28.0
 
March 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 9.0 μg/m3 (8) 3.1 μg/m3 (13) 27.0
 
March 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) 6.3 μg/m3 (26) 28.0
 
March 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 1.3 μg/m3 (5) 28.0
 
March 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 5.8 μg/m3 (24) 28.0
 
March 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 14.0 μg/m3 (13) 4.9 μg/m3 (20) 30.0
 
March 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 15.0 μg/m3 (14) 6.5 μg/m3 (27) 32.0
 
March 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 21.0 μg/m3 (19) 5.2 μg/m3 (22) 32.0
 
March 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 34.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 8.0 μg/m3 (7) 5.5 μg/m3 (23) 38.0
 
March 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 12.0 μg/m3 (11) 9.0 μg/m3 (38) 39.0
 
March 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 38.0
 
March 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 11.0 μg/m3 (10) 4.6 μg/m3 (19) 38.0
 
March 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 37.0
 
March 27, 2020, 7 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) 3.6 μg/m3 (15) 35.0
 
March 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 33.0
 
March 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (9) 32.0
 
March 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 29.0
 
March 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 27.0
 
March 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 1.3 μg/m3 (5) 25.0
 
March 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 24.0
 
March 27, 2020, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 1.8 μg/m3 (8) 24.0
 
March 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) 2.9 μg/m3 (12) 25.0
 
March 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 3.1 μg/m3 (13) 24.0
 
March 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 0.0 μg/m3 (0) 1.5 μg/m3 (6) 25.0
 
March 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 2.0 μg/m3 (2) 2.5 μg/m3 (10) 25.0
 
March 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A -2.0 μg/m3 (0) 6.9 μg/m3 (29) 29.0
 
March 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 0.0 μg/m3 (0) 3.4 μg/m3 (14) 22.0
 
March 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 2.4 μg/m3 (10) 22.0
 
March 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 23.0
 
March 27, 2020, 3 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) 2.1 μg/m3 (9) 23.0
 
March 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 2.0 μg/m3 (2) 3.2 μg/m3 (13) 24.0
 
March 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 2.0 μg/m3 (2) 4.7 μg/m3 (20) 28.0
 
March 27, 2020, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 4.0 μg/m3 (4) 5.4 μg/m3 (23) 32.0
 
March 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 32.0
 
March 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 33.0
 
March 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (9) 32.0
 
March 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 33.0
 
March 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 3.0 μg/m3 (3) 1.8 μg/m3 (8) 32.0
 
March 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 30.0
 
March 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) 5.5 μg/m3 (23) 32.0
 
March 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 16.0 μg/m3 (15) 6.7 μg/m3 (28) 32.0
 
March 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 22.0 μg/m3 (20) 4.1 μg/m3 (17) 29.0
 
March 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 2.3 μg/m3 (10) 21.0
 
March 26, 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) 1.0 μg/m3 (4) 14.0
 
March 26, 2020, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 19.0
 
March 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 4.6 μg/m3 (19) 20.0
 
March 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 0.0 μg/m3 (0) 5.9 μg/m3 (25) 25.0
 
March 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 0.0 μg/m3 (0) 3.8 μg/m3 (16) 21.0
 
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 7.3 μg/m3 (30) 30.0
 
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 12.1 μg/m3 (50) 50.0
 
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) 12.4 μg/m3 (51) 51.0
 
March 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 18.0 μg/m3 (16) 12.5 μg/m3 (51) 51.0
 
March 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 18.0 μg/m3 (16) 13.3 μg/m3 (53) 53.0
 
March 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
March 26, 2020, 2 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) 9.4 μg/m3 (39) 39.0
 
March 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 27.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 10.4 μg/m3 (43) 43.0
 
March 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 10.6 μg/m3 (44) 44.0
 
March 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 2.8 μg/m3 (12) 33.0
 
March 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 12.0 μg/m3 (11) 5.6 μg/m3 (23) 32.0
 
March 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 12.0 μg/m3 (11) 5.2 μg/m3 (22) 31.0
 
March 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 15.0 μg/m3 (14) 9.1 μg/m3 (38) 38.0
 
March 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 20.0 μg/m3 (18) 2.3 μg/m3 (10) 30.0
 
March 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 4.1 μg/m3 (17) 29.0
 
March 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 19.0 μg/m3 (17) 1.3 μg/m3 (5) 29.0
 
March 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 17.0 μg/m3 (15) 2.6 μg/m3 (11) 30.0
 
March 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 2.0 μg/m3 (2) 6.3 μg/m3 (26) 29.0
 
March 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) 3.4 μg/m3 (14) 31.0
 
March 25, 2020, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 0.0 μg/m3 (0) 0.2 μg/m3 (1) 30.0
 
March 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A -1.0 μg/m3 (0) 3.8 μg/m3 (16) 30.0
 
March 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 30.0
 
March 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 4.0 μg/m3 (4) 4.9 μg/m3 (20) 30.0
 
March 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 5.0 μg/m3 (5) -1.1 μg/m3 (0) 30.0
 
March 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 0.0 μg/m3 (0) -1.3 μg/m3 (0) 29.0
 
March 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A -2.0 μg/m3 (0) 2.8 μg/m3 (12) 30.0
 
March 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A -1.0 μg/m3 (0) 0.0 μg/m3 (0) 29.0
 
March 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 29.0
 
March 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 2.9 μg/m3 (12) 29.0
 
March 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 3.2 μg/m3 (13) 29.0
 
March 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 4.0 μg/m3 (4) 6.1 μg/m3 (25) 30.0
 
March 25, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 13.0 μg/m3 (12) 6.7 μg/m3 (28) 30.0
 
March 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 12.0 μg/m3 (11) 3.8 μg/m3 (16) 34.0
 
March 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) 5.5 μg/m3 (23) 36.0
 
March 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 3.0 μg/m3 (3) 3.2 μg/m3 (13) 37.0
 
March 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 37.0
 
March 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) 6.2 μg/m3 (26) 36.0
 
March 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 8.0 μg/m3 (7) 6.6 μg/m3 (28) 36.0
 
March 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) 4.4 μg/m3 (18) 35.0
 
March 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 9.0 μg/m3 (8) 1.1 μg/m3 (5) 36.0
 
March 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) -1.5 μg/m3 (0) 34.0
 
March 24, 2020, 2 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) 2.2 μg/m3 (9) 32.0
 
March 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 32.0
 
March 24, 2020, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 3.0 μg/m3 (3) 3.2 μg/m3 (13) 32.0
 
March 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 6.7 μg/m3 (28) 31.0
 
March 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 31.0
 
March 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 32.0
 
March 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 33.0
 
March 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 5.0 μg/m3 (5) 5.9 μg/m3 (25) 33.0
 
March 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 35.0
 
March 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 5.0 μg/m3 (5) 4.7 μg/m3 (20) 35.0
 
March 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) 0.1 μg/m3 (0) 35.0
 
March 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 31.0
 
March 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 28.0
 
March 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 2.6 μg/m3 (11) 29.0
 
March 24, 2020, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 32.0
 
March 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 1.0 μg/m3 (1) -1.6 μg/m3 (0) 38.0
 
March 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 1.0 μg/m3 (1) 2.7 μg/m3 (11) 38.0
 
March 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 37.0
 
March 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 35.0
 
March 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 4.3 μg/m3 (18) 33.0
 
March 23, 2020, 6 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) 2.1 μg/m3 (9) 32.0
 
March 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 6.0 μg/m3 (5) 6.6 μg/m3 (28) 31.0
 
March 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 16.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
March 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 22.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
March 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 0.0 μg/m3 (0) 27.0
 
March 23, 2020, 1 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) 3.4 μg/m3 (14) 28.0
 
March 23, 2020, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 5.4 μg/m3 (23) 28.0
 
March 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
March 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 8.3 μg/m3 (35) 35.0
 
March 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) 7.8 μg/m3 (32) 32.0
 
March 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 13.2 μg/m3 (53) 53.0
 
March 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 15.3 μg/m3 (57) 57.0
 
March 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 11.1 μg/m3 (46) 46.0
 
March 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 9.2 μg/m3 (38) 38.0
 
March 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 8.3 μg/m3 (35) 35.0
 
March 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
March 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) 9.2 μg/m3 (38) 38.0
 
March 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 11.2 μg/m3 (47) 47.0
 
March 23, 2020, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 9.0 μg/m3 (8) 7.1 μg/m3 (30) 42.0
 
March 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A -1.0 μg/m3 (0) 2.9 μg/m3 (12) 42.0
 
March 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 4.0 μg/m3 (4) 8.0 μg/m3 (33) 43.0
 
March 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 11.0 μg/m3 (10) 12.8 μg/m3 (52) 52.0
 
March 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 15.0 μg/m3 (14) 15.4 μg/m3 (57) 57.0
 
March 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 20.0 μg/m3 (18) 16.2 μg/m3 (59) 59.0
 
March 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 17.0 μg/m3 (15) 14.5 μg/m3 (55) 55.0
 
March 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 24.0 μg/m3 (22) 15.0 μg/m3 (56) 56.0
 
March 22, 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) 10.1 μg/m3 (42) 42.0
 
March 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 7.8 μg/m3 (32) 32.0
 
March 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 7.7 μg/m3 (32) 32.0
 
March 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 26.0
 
March 22, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 7.1 μg/m3 (30) 30.0
 
March 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 3.5 μg/m3 (15) 24.0
 
March 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 5.7 μg/m3 (24) 24.0
 
March 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 5.4 μg/m3 (23) 24.0
 
March 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A -1.0 μg/m3 (0) 2.5 μg/m3 (10) 25.0