AQSQID: 160010010

Site Name: St. Lukes Meridian

Location: Meridian, ID

Reporting: True, Located: True

Current AQI: 34.0

Meridian ID, US: 43.600699, -116.347853

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, 9 p.m. N/A 0.8 ppb (1) 2.8 ppb (3) N/A 1.9 ppb (2) N/A 44.0 ppb (34) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 34.0
 
March 19, 2019, 8 p.m. N/A 1.2 ppb (1) 3.7 ppb (3) N/A 2.5 ppb (2) N/A 42.0 ppb (32) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
March 19, 2019, 7 p.m. N/A 1.3 ppb (1) 3.8 ppb (4) N/A 2.4 ppb (2) N/A 40.0 ppb (31) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 31.0
 
March 19, 2019, 6 p.m. N/A 1.5 ppb (1) 4.2 ppb (4) N/A 2.6 ppb (2) N/A 37.0 ppb (28) N/A N/A -2.0 μg/m3 (0) 28.0
 
March 19, 2019, 5 p.m. N/A 2.7 ppb (3) 6.4 ppb (6) N/A 3.6 ppb (3) N/A 33.0 ppb (25) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
March 19, 2019, 4 p.m. N/A 2.7 ppb (3) 6.8 ppb (6) N/A 4.0 ppb (4) N/A 30.0 ppb (23) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 19, 2019, 3 p.m. N/A 4.1 ppb (4) 10.3 ppb (10) N/A 6.1 ppb (6) N/A N/A 0.15 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 19, 2019, 2 p.m. N/A 6.4 ppb (6) 20.2 ppb (19) N/A 13.7 ppb (13) N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 19.0
 
March 19, 2019, 1 p.m. N/A 6.6 ppb (6) 24.1 ppb (22) N/A 17.5 ppb (16) N/A 14.0 ppb (11) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
March 19, 2019, noon N/A 4.9 ppb (5) 20.6 ppb (19) N/A 15.6 ppb (14) N/A 12.0 ppb (9) 0.25 ppb (3) N/A 1.0 μg/m3 (4) 19.0
 
March 19, 2019, 11 a.m. N/A 1.5 ppb (1) 9.3 ppb (9) N/A 7.8 ppb (7) N/A 23.0 ppb (18) 0.17 ppb (2) N/A 1.0 μg/m3 (4) 18.0
 
March 19, 2019, 10 a.m. N/A 2.6 ppb (2) 17.5 ppb (16) N/A 14.8 ppb (14) N/A 14.0 ppb (11) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 16.0
 
March 19, 2019, 9 a.m. N/A 2.0 ppb (2) 14.9 ppb (14) N/A 12.8 ppb (12) N/A 14.0 ppb (11) 0.19 ppb (2) N/A 1.0 μg/m3 (4) 14.0
 
March 19, 2019, 8 a.m. N/A 1.3 ppb (1) 11.6 ppb (11) N/A 10.3 ppb (10) N/A 19.0 ppb (15) 0.17 ppb (2) N/A 1.0 μg/m3 (4) 15.0
 
March 19, 2019, 7 a.m. N/A 1.1 ppb (1) 7.8 ppb (7) N/A 6.6 ppb (6) N/A 20.0 ppb (15) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 15.0
 
March 19, 2019, 6 a.m. N/A 1.4 ppb (1) 8.3 ppb (8) N/A 6.9 ppb (6) N/A 19.0 ppb (15) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 15.0
 
March 19, 2019, 5 a.m. N/A 1.5 ppb (1) 11.6 ppb (11) N/A 10.1 ppb (9) N/A 22.0 ppb (17) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 19, 2019, 4 a.m. N/A 3.1 ppb (3) 20.2 ppb (19) N/A 17.1 ppb (16) N/A 20.0 ppb (15) 0.39 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 19, 2019, 3 a.m. N/A 1.3 ppb (1) 11.4 ppb (11) N/A 10.1 ppb (9) N/A 28.0 ppb (22) 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 19, 2019, 2 a.m. N/A 1.1 ppb (1) 9.6 ppb (9) N/A 8.5 ppb (8) N/A 35.0 ppb (27) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
March 19, 2019, 1 a.m. N/A 0.6 ppb (1) 4.9 ppb (5) N/A 4.3 ppb (4) N/A 39.0 ppb (30) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 30.0
 
March 19, 2019, midnight N/A 0.6 ppb (1) 2.9 ppb (3) N/A 2.3 ppb (2) N/A 43.0 ppb (33) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 33.0
 
March 18, 2019, 11 p.m. N/A 0.5 ppb (0) 2.3 ppb (2) N/A 1.8 ppb (2) N/A 44.0 ppb (34) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 34.0
 
March 18, 2019, 10 p.m. N/A 0.6 ppb (1) 2.5 ppb (2) N/A 1.9 ppb (2) N/A 43.0 ppb (33) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 33.0
 
March 18, 2019, 9 p.m. N/A 0.7 ppb (1) 2.7 ppb (3) N/A 1.9 ppb (2) N/A 43.0 ppb (33) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 33.0
 
March 18, 2019, 8 p.m. N/A 0.9 ppb (1) 2.9 ppb (3) N/A 2.0 ppb (2) N/A 42.0 ppb (32) 0.13 ppb (1) N/A 0.0 μg/m3 (0) 32.0
 
March 18, 2019, 7 p.m. N/A 0.9 ppb (1) 3.2 ppb (3) N/A 2.2 ppb (2) N/A 41.0 ppb (32) 0.13 ppb (1) N/A 1.0 μg/m3 (4) 32.0
 
March 18, 2019, 6 p.m. N/A 1.4 ppb (1) 4.1 ppb (4) N/A 2.6 ppb (2) N/A 37.0 ppb (28) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 28.0
 
March 18, 2019, 5 p.m. N/A 1.5 ppb (1) 4.4 ppb (4) N/A 2.8 ppb (3) N/A 35.0 ppb (27) 0.13 ppb (1) N/A N/A 27.0
 
March 18, 2019, 4 p.m. N/A 2.6 ppb (2) 6.9 ppb (6) N/A 4.2 ppb (4) N/A 33.0 ppb (25) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
March 18, 2019, 3 p.m. N/A 9.9 ppb (9) 23.2 ppb (21) N/A 13.2 ppb (12) N/A 20.0 ppb (15) 0.22 ppb (2) N/A 3.0 μg/m3 (12) 21.0
 
March 18, 2019, 2 p.m. N/A 12.0 ppb (11) 33.2 ppb (31) N/A 21.1 ppb (20) N/A 10.0 ppb (8) 0.29 ppb (3) N/A 5.0 μg/m3 (21) 31.0
 
March 18, 2019, 1 p.m. N/A 7.7 ppb (7) 24.8 ppb (23) N/A 17.1 ppb (16) N/A 11.0 ppb (8) 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 18, 2019, noon N/A 16.2 ppb (15) 39.2 ppb (36) N/A 22.9 ppb (21) N/A 6.0 ppb (5) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 36.0
 
March 18, 2019, 11 a.m. N/A 1.9 ppb (2) 16.2 ppb (15) N/A 14.2 ppb (13) N/A 11.0 ppb (8) 0.25 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
March 18, 2019, 10 a.m. N/A 1.4 ppb (1) 9.8 ppb (9) N/A 8.4 ppb (8) N/A 17.0 ppb (13) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 9 a.m. N/A 1.2 ppb (1) 8.7 ppb (8) N/A 7.5 ppb (7) N/A 18.0 ppb (14) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 8 a.m. N/A 1.3 ppb (1) 9.8 ppb (9) N/A 8.5 ppb (8) N/A 17.0 ppb (13) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 7 a.m. N/A 1.9 ppb (2) 14.0 ppb (13) N/A 12.0 ppb (11) N/A 13.0 ppb (10) 0.25 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
March 18, 2019, 6 a.m. N/A 4.2 ppb (4) 24.7 ppb (23) N/A 20.5 ppb (19) N/A 9.0 ppb (7) 0.44 ppb (5) N/A 18.0 μg/m3 (63) 63.0
 
March 18, 2019, 5 a.m. N/A 5.2 ppb (5) 30.2 ppb (28) N/A 25.0 ppb (23) N/A 5.0 ppb (4) 0.46 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
March 18, 2019, 4 a.m. N/A 7.9 ppb (7) 36.8 ppb (34) N/A 28.8 ppb (27) N/A 7.0 ppb (5) 0.45 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
March 18, 2019, 3 a.m. N/A 1.0 ppb (1) 8.9 ppb (8) N/A 7.9 ppb (7) N/A 32.0 ppb (25) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 2 a.m. N/A 0.7 ppb (1) 6.7 ppb (6) N/A 6.0 ppb (6) N/A 35.0 ppb (27) 0.21 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
March 18, 2019, 1 a.m. N/A 0.4 ppb (0) 3.7 ppb (3) N/A 3.2 ppb (3) N/A 39.0 ppb (30) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 30.0
 
March 18, 2019, midnight N/A 0.4 ppb (0) 2.8 ppb (3) N/A 2.4 ppb (2) N/A 42.0 ppb (32) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 32.0
 
March 17, 2019, 11 p.m. N/A 0.4 ppb (0) 2.7 ppb (3) N/A 2.2 ppb (2) N/A 43.0 ppb (33) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 33.0
 
March 17, 2019, 10 p.m. N/A 0.5 ppb (0) 3.2 ppb (3) N/A 2.6 ppb (2) N/A 45.0 ppb (35) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 35.0
 
March 17, 2019, 9 p.m. N/A 0.7 ppb (1) 3.6 ppb (3) N/A 2.8 ppb (3) N/A 42.0 ppb (32) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
March 17, 2019, 8 p.m. N/A 0.7 ppb (1) 3.2 ppb (3) N/A 2.4 ppb (2) N/A 41.0 ppb (32) 0.15 ppb (2) N/A -1.0 μg/m3 (0) 32.0
 
March 17, 2019, 7 p.m. N/A 1.1 ppb (1) 4.0 ppb (4) N/A 2.9 ppb (3) N/A 38.0 ppb (29) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 29.0
 
March 17, 2019, 6 p.m. N/A 1.5 ppb (1) 4.7 ppb (4) N/A 3.2 ppb (3) N/A 35.0 ppb (27) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
March 17, 2019, 5 p.m. N/A 1.6 ppb (1) 4.8 ppb (4) N/A 3.2 ppb (3) N/A 34.0 ppb (26) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
March 17, 2019, 4 p.m. N/A 4.3 ppb (4) 11.5 ppb (11) N/A 7.2 ppb (7) N/A 28.0 ppb (22) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 17, 2019, 3 p.m. N/A 13.1 ppb (12) 30.2 ppb (28) N/A 17.0 ppb (16) N/A 14.0 ppb (11) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
March 17, 2019, 2 p.m. N/A 4.1 ppb (4) 18.0 ppb (17) N/A 13.8 ppb (13) N/A 11.0 ppb (8) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 17, 2019, 1 p.m. N/A 4.7 ppb (4) 19.5 ppb (18) N/A 14.7 ppb (14) N/A 10.0 ppb (8) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 17, 2019, noon N/A 3.3 ppb (3) 15.7 ppb (15) N/A 12.4 ppb (11) N/A 16.0 ppb (12) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 17, 2019, 11 a.m. N/A 0.8 ppb (1) 5.9 ppb (5) N/A 5.1 ppb (5) N/A 26.0 ppb (20) 0.15 ppb (2) N/A -1.0 μg/m3 (0) 20.0
 
March 17, 2019, 10 a.m. N/A 0.5 ppb (0) 4.1 ppb (4) N/A 3.5 ppb (3) N/A 31.0 ppb (24) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 24.0
 
March 17, 2019, 9 a.m. N/A 0.8 ppb (1) 6.2 ppb (6) N/A 5.4 ppb (5) N/A 27.0 ppb (21) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 21.0
 
March 17, 2019, 8 a.m. N/A 0.5 ppb (0) 4.4 ppb (4) N/A 3.9 ppb (4) N/A 30.0 ppb (23) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 23.0
 
March 17, 2019, 7 a.m. N/A 1.3 ppb (1) 8.9 ppb (8) N/A 7.5 ppb (7) N/A 18.0 ppb (14) 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
March 17, 2019, 6 a.m. N/A 2.0 ppb (2) 13.4 ppb (12) N/A 11.4 ppb (11) N/A 17.0 ppb (13) 0.28 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
March 17, 2019, 5 a.m. N/A 4.3 ppb (4) 27.1 ppb (25) N/A 22.8 ppb (21) N/A 12.0 ppb (9) 0.46 ppb (5) N/A 24.0 μg/m3 (76) 76.0
 
March 17, 2019, 4 a.m. N/A 8.0 ppb (7) 34.6 ppb (32) N/A 26.5 ppb (25) N/A 12.0 ppb (9) 0.44 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
March 17, 2019, 3 a.m. N/A 0.8 ppb (1) 7.7 ppb (7) N/A 6.8 ppb (6) N/A 36.0 ppb (28) 0.22 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
March 17, 2019, 2 a.m. N/A 1.0 ppb (1) 9.5 ppb (9) N/A 8.4 ppb (8) N/A 38.0 ppb (29) 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 17, 2019, 1 a.m. N/A 0.7 ppb (1) 6.4 ppb (6) N/A 5.6 ppb (5) N/A 44.0 ppb (34) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
March 17, 2019, midnight N/A 0.7 ppb (1) 4.2 ppb (4) N/A 3.4 ppb (3) N/A 47.0 ppb (36) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 36.0
 
March 16, 2019, 11 p.m. N/A 0.8 ppb (1) 3.9 ppb (4) N/A 3.1 ppb (3) N/A 47.0 ppb (36) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 36.0
 
March 16, 2019, 10 p.m. N/A 0.7 ppb (1) 3.4 ppb (3) N/A 2.7 ppb (3) N/A 46.0 ppb (35) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 35.0
 
March 16, 2019, 9 p.m. N/A 0.6 ppb (1) 2.9 ppb (3) N/A 2.2 ppb (2) N/A 44.0 ppb (34) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 34.0
 
March 16, 2019, 8 p.m. N/A 0.6 ppb (1) 2.4 ppb (2) N/A 1.8 ppb (2) N/A 42.0 ppb (32) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
March 16, 2019, 7 p.m. N/A 0.7 ppb (1) 2.7 ppb (3) N/A 1.9 ppb (2) N/A 39.0 ppb (30) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 30.0
 
March 16, 2019, 6 p.m. N/A 1.1 ppb (1) 3.4 ppb (3) N/A 2.3 ppb (2) N/A 37.0 ppb (28) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
March 16, 2019, 5 p.m. N/A 1.6 ppb (1) 4.5 ppb (4) N/A 2.8 ppb (3) N/A 33.0 ppb (25) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 25.0
 
March 16, 2019, 4 p.m. N/A 2.5 ppb (2) 6.8 ppb (6) N/A 4.3 ppb (4) N/A 31.0 ppb (24) 0.16 ppb (2) N/A 1.0 μg/m3 (4) 24.0
 
March 16, 2019, 3 p.m. N/A 3.3 ppb (3) 9.3 ppb (9) N/A 6.0 ppb (6) N/A 27.0 ppb (21) 0.16 ppb (2) N/A 0.0 μg/m3 (0) 21.0
 
March 16, 2019, 2 p.m. N/A 3.7 ppb (3) 13.9 ppb (13) N/A 10.2 ppb (9) N/A 21.0 ppb (16) 0.18 ppb (2) N/A 0.0 μg/m3 (0) 16.0
 
March 16, 2019, 1 p.m. N/A 2.0 ppb (2) 9.7 ppb (9) N/A 7.7 ppb (7) N/A 25.0 ppb (19) 0.18 ppb (2) N/A 1.0 μg/m3 (4) 19.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 16, 2019, 10 a.m. N/A 0.6 ppb (1) 5.0 ppb (5) N/A 4.3 ppb (4) N/A 29.0 ppb (22) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 22.0
 
March 16, 2019, 9 a.m. N/A 0.6 ppb (1) 4.7 ppb (4) N/A 4.1 ppb (4) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 23.0
 
March 16, 2019, 8 a.m. N/A 1.5 ppb (1) 10.0 ppb (9) N/A 8.5 ppb (8) N/A 20.0 ppb (15) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 15.0
 
March 16, 2019, 7 a.m. N/A 7.5 ppb (7) 27.8 ppb (26) N/A 20.2 ppb (19) N/A 5.0 ppb (4) 0.39 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
March 16, 2019, 6 a.m. N/A 3.5 ppb (3) 20.6 ppb (19) N/A 17.1 ppb (16) N/A 10.0 ppb (8) 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 5 a.m. N/A 4.5 ppb (4) 26.1 ppb (24) N/A 21.6 ppb (20) N/A 14.0 ppb (11) 0.32 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 4 a.m. N/A 2.7 ppb (3) 22.6 ppb (21) N/A 19.8 ppb (18) N/A 16.0 ppb (12) 0.41 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 3 a.m. N/A 3.2 ppb (3) 25.5 ppb (24) N/A 22.3 ppb (21) N/A 16.0 ppb (12) 0.37 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
March 16, 2019, 2 a.m. N/A 1.4 ppb (1) 12.7 ppb (12) N/A 11.2 ppb (10) N/A 31.0 ppb (24) 0.23 ppb (3) N/A 4.0 μg/m3 (17) 24.0
 
March 16, 2019, 1 a.m. N/A 0.7 ppb (1) 5.7 ppb (5) N/A 5.0 ppb (5) N/A 40.0 ppb (31) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 31.0
 
March 16, 2019, midnight N/A 0.7 ppb (1) 4.0 ppb (4) N/A 3.3 ppb (3) N/A 43.0 ppb (33) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 33.0
 
March 15, 2019, 11 p.m. N/A 1.3 ppb (1) 5.0 ppb (5) N/A 3.7 ppb (3) N/A 41.0 ppb (32) 0.16 ppb (2) N/A 1.0 μg/m3 (4) 32.0
 
March 15, 2019, 10 p.m. N/A 1.8 ppb (2) 6.0 ppb (6) N/A 4.2 ppb (4) N/A 40.0 ppb (31) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 31.0
 
March 15, 2019, 9 p.m. N/A 2.1 ppb (2) 6.5 ppb (6) N/A 4.3 ppb (4) N/A 39.0 ppb (30) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 30.0
 
March 15, 2019, 8 p.m. N/A 2.5 ppb (2) 7.0 ppb (6) N/A 4.5 ppb (4) N/A 37.0 ppb (28) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 28.0
 
March 15, 2019, 7 p.m. N/A 3.3 ppb (3) 8.5 ppb (8) N/A 5.2 ppb (5) N/A 36.0 ppb (28) 0.17 ppb (2) N/A 1.0 μg/m3 (4) 28.0
 
March 15, 2019, 6 p.m. N/A 3.3 ppb (3) 8.1 ppb (8) N/A 4.8 ppb (4) N/A 34.0 ppb (26) 0.17 ppb (2) N/A 1.0 μg/m3 (4) 26.0
 
March 15, 2019, 5 p.m. N/A 2.4 ppb (2) 6.1 ppb (6) N/A 3.6 ppb (3) N/A 34.0 ppb (26) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
March 15, 2019, 4 p.m. N/A 3.7 ppb (3) 8.7 ppb (8) N/A 5.0 ppb (5) N/A 28.0 ppb (22) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 22.0
 
March 15, 2019, 3 p.m. N/A 11.8 ppb (11) 23.0 ppb (21) N/A 11.1 ppb (10) N/A 15.0 ppb (12) 0.19 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
March 15, 2019, 2 p.m. N/A 22.5 ppb (21) 41.7 ppb (39) N/A 19.1 ppb (18) N/A 3.0 ppb (2) 0.33 ppb (4) N/A 6.0 μg/m3 (25) 39.0
 
March 15, 2019, 1 p.m. N/A 43.8 ppb (41) 73.5 ppb (71) N/A 29.5 ppb (27) N/A 0.0 ppb (0) 0.49 ppb (5) N/A 8.0 μg/m3 (33) 71.0
 
March 15, 2019, noon N/A 23.5 ppb (22) 53.2 ppb (49) N/A 29.7 ppb (28) N/A 2.0 ppb (2) 0.41 ppb (5) N/A 5.0 μg/m3 (21) 49.0
 
March 15, 2019, 11 a.m. N/A 1.9 ppb (2) 16.2 ppb (15) N/A 14.3 ppb (13) N/A 17.0 ppb (13) 0.21 ppb (2) N/A 2.0 μg/m3 (8) 15.0
 
March 15, 2019, 10 a.m. N/A 1.6 ppb (1) 12.1 ppb (11) N/A 10.4 ppb (10) N/A 21.0 ppb (16) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 15, 2019, 9 a.m. N/A 1.4 ppb (1) 11.8 ppb (11) N/A 10.4 ppb (10) N/A 19.0 ppb (15) 0.19 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 8 a.m. N/A 5.0 ppb (5) 23.8 ppb (22) N/A 18.7 ppb (17) N/A 4.0 ppb (3) 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
March 15, 2019, 7 a.m. N/A 3.5 ppb (3) 20.7 ppb (19) N/A 17.1 ppb (16) N/A 12.0 ppb (9) 0.22 ppb (2) N/A N/A 19.0
 
March 15, 2019, 6 a.m. N/A 2.9 ppb (3) 19.3 ppb (18) N/A 16.3 ppb (15) N/A 11.0 ppb (8) 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 5 a.m. N/A 3.6 ppb (3) 22.8 ppb (21) N/A 19.1 ppb (18) N/A 11.0 ppb (8) 0.35 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
March 15, 2019, 4 a.m. N/A 8.2 ppb (8) 39.1 ppb (36) N/A 30.8 ppb (29) N/A 5.0 ppb (4) 0.4 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
March 15, 2019, 3 a.m. N/A 5.7 ppb (5) 28.8 ppb (27) N/A 23.0 ppb (21) N/A 15.0 ppb (12) 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 2 a.m. N/A 0.9 ppb (1) 8.4 ppb (8) N/A 7.5 ppb (7) N/A 32.0 ppb (25) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
March 15, 2019, 1 a.m. N/A 0.3 ppb (0) 2.9 ppb (3) N/A 2.5 ppb (2) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 31.0
 
March 15, 2019, midnight N/A 0.3 ppb (0) 2.0 ppb (2) N/A 1.6 ppb (1) N/A 43.0 ppb (33) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 33.0
 
March 14, 2019, 11 p.m. N/A 0.7 ppb (1) 2.7 ppb (3) N/A 2.0 ppb (2) N/A 43.0 ppb (33) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 33.0
 
March 14, 2019, 10 p.m. N/A 0.7 ppb (1) 2.5 ppb (2) N/A 1.8 ppb (2) N/A 43.0 ppb (33) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 33.0
 
March 14, 2019, 9 p.m. N/A 0.6 ppb (1) 2.3 ppb (2) N/A 1.6 ppb (1) N/A 42.0 ppb (32) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
March 14, 2019, 8 p.m. N/A 0.7 ppb (1) 2.5 ppb (2) N/A 1.7 ppb (2) N/A 41.0 ppb (32) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 32.0
 
March 14, 2019, 7 p.m. N/A 1.0 ppb (1) 2.7 ppb (3) N/A 1.6 ppb (1) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 31.0
 
March 14, 2019, 6 p.m. N/A 1.3 ppb (1) 3.3 ppb (3) N/A 1.9 ppb (2) N/A 38.0 ppb (29) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
March 14, 2019, 5 p.m. N/A 1.4 ppb (1) 3.8 ppb (4) N/A 2.3 ppb (2) N/A 35.0 ppb (27) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 27.0
 
March 14, 2019, 4 p.m. N/A 2.6 ppb (2) 6.7 ppb (6) N/A 4.1 ppb (4) N/A 31.0 ppb (24) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 24.0
 
March 14, 2019, 3 p.m. N/A 5.9 ppb (5) 15.8 ppb (15) N/A 9.9 ppb (9) N/A 23.0 ppb (18) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 14, 2019, 2 p.m. N/A 6.7 ppb (6) 23.7 ppb (22) N/A 16.9 ppb (16) N/A 14.0 ppb (11) 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
March 14, 2019, 1 p.m. N/A 3.3 ppb (3) 17.3 ppb (16) N/A 14.0 ppb (13) N/A 17.0 ppb (13) 0.23 ppb (3) N/A 3.0 μg/m3 (12) 16.0
 
March 14, 2019, noon N/A 1.4 ppb (1) 9.1 ppb (8) N/A 7.6 ppb (7) N/A 25.0 ppb (19) 0.18 ppb (2) N/A 2.0 μg/m3 (8) 19.0
 
March 14, 2019, 11 a.m. N/A 1.1 ppb (1) 6.6 ppb (6) N/A 5.5 ppb (5) N/A 25.0 ppb (19) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 19.0
 
March 14, 2019, 10 a.m. N/A 0.9 ppb (1) 5.1 ppb (5) N/A 4.1 ppb (4) N/A 27.0 ppb (21) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 21.0
 
March 14, 2019, 9 a.m. N/A 0.5 ppb (0) 3.8 ppb (4) N/A 3.2 ppb (3) N/A 27.0 ppb (21) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 21.0
 
March 14, 2019, 8 a.m. N/A 1.0 ppb (1) 5.1 ppb (5) N/A 4.0 ppb (4) N/A 26.0 ppb (20) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
March 14, 2019, 7 a.m. N/A 1.0 ppb (1) 5.1 ppb (5) N/A 4.1 ppb (4) N/A 27.0 ppb (21) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 21.0
 
March 14, 2019, 6 a.m. N/A 0.3 ppb (0) 2.8 ppb (3) N/A 2.4 ppb (2) N/A 31.0 ppb (24) 0.13 ppb (1) N/A 0.0 μg/m3 (0) 24.0
 
March 14, 2019, 5 a.m. N/A 0.4 ppb (0) 3.0 ppb (3) N/A 2.5 ppb (2) N/A 31.0 ppb (24) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 24.0
 
March 14, 2019, 4 a.m. N/A 0.4 ppb (0) 3.3 ppb (3) N/A 2.9 ppb (3) N/A 32.0 ppb (25) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
March 14, 2019, 3 a.m. N/A 0.4 ppb (0) 3.5 ppb (3) N/A 3.0 ppb (3) N/A 33.0 ppb (25) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
March 14, 2019, 2 a.m. N/A 0.4 ppb (0) 3.3 ppb (3) N/A 2.9 ppb (3) N/A 36.0 ppb (28) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 28.0
 
March 14, 2019, 1 a.m. N/A 0.3 ppb (0) 2.3 ppb (2) N/A 1.9 ppb (2) N/A 39.0 ppb (30) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 30.0
 
March 14, 2019, midnight N/A 0.4 ppb (0) 1.7 ppb (2) N/A 1.2 ppb (1) N/A 41.0 ppb (32) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
March 13, 2019, 11 p.m. N/A 0.9 ppb (1) 2.8 ppb (3) N/A 1.9 ppb (2) N/A 41.0 ppb (32) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 32.0
 
March 13, 2019, 10 p.m. N/A 0.9 ppb (1) 2.6 ppb (2) N/A 1.6 ppb (1) N/A 41.0 ppb (32) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
March 13, 2019, 9 p.m. N/A 0.9 ppb (1) 2.7 ppb (3) N/A 1.8 ppb (2) N/A 39.0 ppb (30) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 30.0
 
March 13, 2019, 8 p.m. N/A 1.1 ppb (1) 3.0 ppb (3) N/A 1.8 ppb (2) N/A 39.0 ppb (30) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 30.0
 
March 13, 2019, 7 p.m. N/A 0.9 ppb (1) 2.7 ppb (3) N/A 1.8 ppb (2) N/A 39.0 ppb (30) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 30.0
 
March 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
March 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.16 ppb (2) N/A N/A 26.0
 
March 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
March 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.21 ppb (2) N/A 3.0 μg/m3 (12) 18.0
 
March 13, 2019, 1 p.m. N/A 2.0 ppb (2) 12.3 ppb (11) N/A 10.2 ppb (9) N/A 25.0 ppb (19) 0.21 ppb (2) N/A 2.0 μg/m3 (8) 19.0
 
March 13, 2019, noon N/A 1.0 ppb (1) 6.6 ppb (6) N/A 5.5 ppb (5) N/A 30.0 ppb (23) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 23.0
 
March 13, 2019, 11 a.m. N/A 0.6 ppb (1) 5.1 ppb (5) N/A 4.4 ppb (4) N/A 31.0 ppb (24) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 24.0
 
March 13, 2019, 10 a.m. N/A 0.5 ppb (0) 3.9 ppb (4) N/A 3.4 ppb (3) N/A 32.0 ppb (25) 0.14 ppb (2) N/A -1.0 μg/m3 (0) 25.0
 
March 13, 2019, 9 a.m. N/A 0.5 ppb (0) 3.0 ppb (3) N/A 2.5 ppb (2) N/A 35.0 ppb (27) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 27.0
 
March 13, 2019, 8 a.m. N/A 0.4 ppb (0) 2.8 ppb (3) N/A 2.4 ppb (2) N/A 34.0 ppb (26) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 26.0
 
March 13, 2019, 7 a.m. N/A 0.3 ppb (0) 3.0 ppb (3) N/A 2.6 ppb (2) N/A 34.0 ppb (26) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 26.0
 
March 13, 2019, 6 a.m. N/A 0.5 ppb (0) 3.7 ppb (3) N/A 3.1 ppb (3) N/A 34.0 ppb (26) 0.15 ppb (2) N/A -1.0 μg/m3 (0) 26.0
 
March 13, 2019, 5 a.m. N/A 0.6 ppb (1) 4.7 ppb (4) N/A 4.0 ppb (4) N/A 29.0 ppb (22) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 22.0
 
March 13, 2019, 4 a.m. N/A 0.6 ppb (1) 5.1 ppb (5) N/A 4.4 ppb (4) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 23.0
 
March 13, 2019, 3 a.m. N/A 0.8 ppb (1) 6.9 ppb (6) N/A 6.0 ppb (6) N/A 27.0 ppb (21) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 21.0
 
March 13, 2019, 2 a.m. N/A 0.6 ppb (1) 5.1 ppb (5) N/A 4.5 ppb (4) N/A 33.0 ppb (25) 0.16 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
March 13, 2019, 1 a.m. N/A 0.6 ppb (1) 4.4 ppb (4) N/A 3.8 ppb (4) N/A 34.0 ppb (26) 0.16 ppb (2) N/A 1.0 μg/m3 (4) 26.0
 
March 13, 2019, midnight N/A 0.6 ppb (1) 3.4 ppb (3) N/A 2.7 ppb (3) N/A 39.0 ppb (30) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 30.0
 
March 12, 2019, 11 p.m. N/A 1.2 ppb (1) 5.0 ppb (5) N/A 3.8 ppb (4) N/A 34.0 ppb (26) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 26.0
 
March 12, 2019, 10 p.m. N/A 1.7 ppb (2) 6.6 ppb (6) N/A 4.8 ppb (4) N/A 30.0 ppb (23) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0