AQSQID: 420590002

Site Name: Holb

Location: Center Twsp, PA

Reporting: True, Located: True

Current AQI: 23.0

Center Twsp PA, US: 39.82, -80.2897

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 26, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.4 μg/m3 (2) 23.0
 
March 26, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.1 μg/m3 (9) 24.0
 
March 26, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (15) 15.0
 
March 26, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 2.1 μg/m3 (9) 25.0
 
March 26, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 2.8 μg/m3 (12) 25.0
 
March 26, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 26, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 15.5 μg/m3 (57) 57.0
 
March 26, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 16.1 μg/m3 (59) 59.0
 
March 26, 2019, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 12.8 μg/m3 (52) 52.0
 
March 25, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.7 μg/m3 (36) 36.0
 
March 25, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 25, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 25, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 25, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 13.4 μg/m3 (53) 53.0
 
March 25, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 13.6 μg/m3 (53) 53.0
 
March 25, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 25, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 25, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 6.5 μg/m3 (27) 27.0
 
March 25, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 25, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 25, 2019, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 25, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.0 μg/m3 (17) 17.0
 
March 25, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 2.4 μg/m3 (10) 19.0
 
March 25, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.1 μg/m3 (13) 21.0
 
March 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.4 μg/m3 (18) 18.0
 
March 25, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 4.6 μg/m3 (19) 21.0
 
March 25, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
March 25, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.6 μg/m3 (23) 28.0
 
March 25, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 25, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.9 μg/m3 (25) 30.0
 
March 25, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.8 μg/m3 (20) 30.0
 
March 25, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.4 μg/m3 (18) 29.0
 
March 25, 2019, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 6.1 μg/m3 (25) 31.0
 
March 24, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.9 μg/m3 (20) 31.0
 
March 24, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
March 24, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.7 μg/m3 (11) 31.0
 
March 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
March 24, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
March 24, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 0.7 μg/m3 (3) 31.0
 
March 24, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.8 μg/m3 (3) 29.0
 
March 24, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.9 μg/m3 (8) 28.0
 
March 24, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
March 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 3.2 μg/m3 (13) 22.0
 
March 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.6 μg/m3 (11) 24.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.3 μg/m3 (18) 24.0
 
March 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.9 μg/m3 (20) 25.0
 
March 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 5.5 μg/m3 (23) 25.0
 
March 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.7 μg/m3 (15) 24.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.4 μg/m3 (6) 27.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.3 μg/m3 (22) 29.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.8 μg/m3 (16) 30.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.6 μg/m3 (11) 31.0
 
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.7 μg/m3 (15) 31.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.5 μg/m3 (15) 30.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.6 μg/m3 (2) 29.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 0.7 μg/m3 (3) 26.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.8 μg/m3 (12) 24.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.7 μg/m3 (20) 24.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.4 μg/m3 (10) 22.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.2 μg/m3 (5) 21.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.5 μg/m3 (6) 21.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.7 μg/m3 (7) 22.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 3.1 μg/m3 (13) 22.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 5.7 μg/m3 (24) 24.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
March 23, 2019, 3 a.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
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.5 μg/m3 (19) 22.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 2.5 μg/m3 (10) 22.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 12.3 μg/m3 (51) 51.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.1 μg/m3 (13) 23.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.3 μg/m3 (18) 26.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.5 μg/m3 (27) 27.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (35) 35.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 12.6 μg/m3 (51) 51.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.1 μg/m3 (25) 25.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.7 μg/m3 (20) 27.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.8 μg/m3 (24) 25.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 8.7 μg/m3 (36) 36.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.6 μg/m3 (28) 30.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 6.7 μg/m3 (28) 29.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 14.9 μg/m3 (56) 56.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 16.4 μg/m3 (59) 59.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 21.9 μg/m3 (71) 71.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.3 μg/m3 (70) 70.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 15.6 μg/m3 (58) 58.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 6.2 μg/m3 (26) 29.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.6 μg/m3 (19) 29.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 7.3 μg/m3 (30) 31.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 7.7 μg/m3 (32) 32.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 8.7 μg/m3 (36) 36.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 6.9 μg/m3 (29) 34.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.5 μg/m3 (27) 35.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 6.4 μg/m3 (27) 34.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.4 μg/m3 (10) 33.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.1 μg/m3 (13) 32.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 6.8 μg/m3 (28) 32.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.3 μg/m3 (22) 23.0
 
March 20, 2019, 11 a.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
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.9 μg/m3 (25) 25.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 6.4 μg/m3 (27) 29.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 6.8 μg/m3 (28) 29.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 8.7 μg/m3 (36) 36.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 7.1 μg/m3 (30) 33.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.3 μg/m3 (10) 33.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.5 μg/m3 (10) 32.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.2 μg/m3 (13) 30.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.2 μg/m3 (18) 29.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 6.3 μg/m3 (26) 26.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 7.5 μg/m3 (31) 31.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 5.8 μg/m3 (24) 24.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.6 μg/m3 (15) 23.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.5 μg/m3 (23) 26.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.5 μg/m3 (19) 27.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.7 μg/m3 (24) 28.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 8.8 μg/m3 (37) 37.0