AQSQID: 291370001

Site Name: Mtsp

Location: Monroe Co, MO

Reporting: True, Located: True

Current AQI: 32.0

Monroe Co MO, US: 39.475101, -91.788986

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 3 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 10.0 μg/m3 (9) N/A 32.0
 
March 23, 2019, 2 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 11.0 μg/m3 (10) N/A 33.0
 
March 23, 2019, 1 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 12.0 μg/m3 (11) N/A 36.0
 
March 23, 2019, midnight 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 11.0 μg/m3 (10) N/A 37.0
 
March 22, 2019, 11 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 10.0 μg/m3 (9) N/A 38.0
 
March 22, 2019, 10 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 8.0 μg/m3 (7) N/A 38.0
 
March 22, 2019, 9 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 8.0 μg/m3 (7) N/A 38.0
 
March 22, 2019, 8 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 7.0 μg/m3 (6) N/A 38.0
 
March 22, 2019, 7 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 6.0 μg/m3 (5) N/A 37.0
 
March 22, 2019, 6 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 22, 2019, 5 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 7.0 μg/m3 (6) N/A 34.0
 
March 22, 2019, 4 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 8.0 μg/m3 (7) N/A 32.0
 
March 22, 2019, 3 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 9.0 μg/m3 (8) N/A 29.0
 
March 22, 2019, 2 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 9.0 μg/m3 (8) N/A 27.0
 
March 22, 2019, 1 p.m. 2.5 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) N/A 25.0
 
March 22, 2019, noon 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) N/A 25.0
 
March 22, 2019, 11 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) N/A 25.0
 
March 22, 2019, 10 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) N/A 24.0
 
March 22, 2019, 9 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 7.0 μg/m3 (6) N/A 24.0
 
March 22, 2019, 8 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 6.0 μg/m3 (5) N/A 24.0
 
March 22, 2019, 7 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) N/A 25.0
 
March 22, 2019, 6 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 7.0 μg/m3 (6) N/A 25.0
 
March 22, 2019, 5 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) N/A 25.0
 
March 22, 2019, 4 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 9.0 μg/m3 (8) N/A 27.0
 
March 22, 2019, 3 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 8.0 μg/m3 (7) N/A 29.0
 
March 22, 2019, 2 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 7.0 μg/m3 (6) N/A 32.0
 
March 22, 2019, 1 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 6.0 μg/m3 (5) N/A 33.0
 
March 22, 2019, midnight 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 21, 2019, 11 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 7.0 μg/m3 (6) N/A 35.0
 
March 21, 2019, 10 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 7.0 μg/m3 (6) N/A 36.0
 
March 21, 2019, 9 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 21, 2019, 8 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 21, 2019, 7 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 21, 2019, 6 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 21, 2019, 5 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 21, 2019, 4 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 4.0 μg/m3 (4) N/A 32.0
 
March 21, 2019, 3 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 5.0 μg/m3 (5) N/A 31.0
 
March 21, 2019, 2 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 7.0 μg/m3 (6) N/A 28.0
 
March 21, 2019, 1 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 7.0 μg/m3 (6) N/A 26.0
 
March 21, 2019, noon 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) N/A 25.0
 
March 21, 2019, 11 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 7.0 μg/m3 (6) N/A 24.0
 
March 21, 2019, 10 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 8.0 μg/m3 (7) N/A 26.0
 
March 21, 2019, 9 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 7.0 μg/m3 (6) N/A 28.0
 
March 21, 2019, 8 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 6.0 μg/m3 (5) N/A 29.0
 
March 21, 2019, 7 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 7.0 μg/m3 (6) N/A 31.0
 
March 21, 2019, 6 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 8.0 μg/m3 (7) N/A 28.0
 
March 21, 2019, 5 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 9.0 μg/m3 (8) N/A 29.0
 
March 21, 2019, 4 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 8.0 μg/m3 (7) N/A 28.0
 
March 21, 2019, 3 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 6.0 μg/m3 (5) N/A 30.0
 
March 21, 2019, 2 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 6.0 μg/m3 (5) N/A 31.0
 
March 21, 2019, 1 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 8.0 μg/m3 (7) N/A 32.0
 
March 21, 2019, midnight 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 20, 2019, 11 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 8.0 μg/m3 (7) N/A 35.0
 
March 20, 2019, 10 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 9.0 μg/m3 (8) N/A 35.0
 
March 20, 2019, 9 p.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 9.0 μg/m3 (8) N/A 35.0
 
March 20, 2019, 8 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 8.0 μg/m3 (7) N/A 35.0
 
March 20, 2019, 7 p.m. 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 9.0 μg/m3 (8) N/A 33.0
 
March 20, 2019, 6 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 8.0 μg/m3 (7) N/A 33.0
 
March 20, 2019, 5 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 10.0 μg/m3 (9) N/A 35.0
 
March 20, 2019, 4 p.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 11.0 μg/m3 (10) N/A 31.0
 
March 20, 2019, 3 p.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 10.0 μg/m3 (9) N/A 25.0
 
March 20, 2019, 2 p.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 11.0 μg/m3 (10) N/A 24.0
 
March 20, 2019, 1 p.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 19.0 μg/m3 (17) N/A 26.0
 
March 20, 2019, noon 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 25.0 μg/m3 (23) N/A 32.0
 
March 20, 2019, 11 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 24.0 μg/m3 (22) N/A 32.0
 
March 20, 2019, 10 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 21.0 μg/m3 (19) N/A 32.0
 
March 20, 2019, 9 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 23.0 μg/m3 (21) N/A 34.0
 
March 20, 2019, 8 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 20.0 μg/m3 (18) N/A 35.0
 
March 20, 2019, 7 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 22.0 μg/m3 (20) N/A 35.0
 
March 20, 2019, 6 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 41.0 ppb (32) N/A 23.0 μg/m3 (21) N/A 32.0
 
March 20, 2019, 5 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (30) N/A 16.0 μg/m3 (15) N/A 30.0
 
March 20, 2019, 4 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 37.0 ppb (28) N/A 13.0 μg/m3 (12) N/A 28.0
 
March 20, 2019, 3 a.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 38.0 ppb (29) N/A 13.0 μg/m3 (12) N/A 29.0
 
March 20, 2019, 2 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 40.0 ppb (31) N/A 11.0 μg/m3 (10) N/A 31.0
 
March 20, 2019, 1 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 12.0 μg/m3 (11) N/A 32.0
 
March 20, 2019, midnight 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 11.0 μg/m3 (10) N/A 31.0
 
March 19, 2019, 11 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 12.0 μg/m3 (11) N/A 32.0
 
March 19, 2019, 10 p.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 13.0 μg/m3 (12) N/A 33.0
 
March 19, 2019, 9 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 13.0 μg/m3 (12) N/A 33.0
 
March 19, 2019, 8 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 14.0 μg/m3 (13) N/A 33.0
 
March 19, 2019, 7 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 12.0 μg/m3 (11) N/A 32.0
 
March 19, 2019, 6 p.m. 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 13.0 μg/m3 (12) N/A 33.0
 
March 19, 2019, 5 p.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 13.0 μg/m3 (12) N/A 32.0
 
March 19, 2019, 4 p.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 12.0 μg/m3 (11) N/A 29.0
 
March 19, 2019, 3 p.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 12.0 μg/m3 (11) N/A 28.0
 
March 19, 2019, 2 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 10.0 μg/m3 (9) N/A 26.0
 
March 19, 2019, 1 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 10.0 μg/m3 (9) N/A 25.0
 
March 19, 2019, noon 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) N/A 24.0
 
March 19, 2019, 11 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 9.0 μg/m3 (8) N/A 25.0
 
March 19, 2019, 10 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 9.0 μg/m3 (8) N/A 25.0
 
March 19, 2019, 9 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 8.0 μg/m3 (7) N/A 21.0
 
March 19, 2019, 8 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 7.0 μg/m3 (6) N/A 23.0
 
March 19, 2019, 7 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) N/A 25.0
 
March 19, 2019, 6 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) N/A 24.0
 
March 19, 2019, 5 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 8.0 μg/m3 (7) N/A 31.0
 
March 19, 2019, 4 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 8.0 μg/m3 (7) N/A 35.0
 
March 19, 2019, 3 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 8.0 μg/m3 (7) N/A 33.0
 
March 19, 2019, 2 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 7.0 μg/m3 (6) N/A 35.0
 
March 19, 2019, 1 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 6.0 μg/m3 (5) N/A 36.0
 
March 19, 2019, midnight 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 7.0 μg/m3 (6) N/A 38.0
 
March 18, 2019, 11 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 9.0 μg/m3 (8) N/A 39.0
 
March 18, 2019, 10 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 6.0 μg/m3 (5) N/A 38.0
 
March 18, 2019, 9 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 18, 2019, 8 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 18, 2019, 7 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 3.0 μg/m3 (3) N/A 38.0
 
March 18, 2019, 6 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 18, 2019, 5 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 4.0 μg/m3 (4) N/A 37.0
 
March 18, 2019, 4 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 18, 2019, 3 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 5.0 μg/m3 (5) N/A 32.0
 
March 18, 2019, 2 p.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 7.0 μg/m3 (6) N/A 25.0
 
March 18, 2019, 1 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 8.0 μg/m3 (7) N/A 22.0
 
March 18, 2019, noon 2.8 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) N/A 21.0
 
March 18, 2019, 11 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 7.0 μg/m3 (6) N/A 22.0
 
March 18, 2019, 10 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) N/A 22.0
 
March 18, 2019, 9 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) N/A 22.0
 
March 18, 2019, 8 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 6.0 μg/m3 (5) N/A 22.0
 
March 18, 2019, 7 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 7.0 μg/m3 (6) N/A 23.0
 
March 18, 2019, 6 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 6.0 μg/m3 (5) N/A 18.0
 
March 18, 2019, 5 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 6.0 μg/m3 (5) N/A 26.0
 
March 18, 2019, 4 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 6.0 μg/m3 (5) N/A 26.0
 
March 18, 2019, 3 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) N/A 27.0
 
March 18, 2019, 2 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 5.0 μg/m3 (5) N/A 31.0
 
March 18, 2019, 1 a.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 4.0 μg/m3 (4) N/A 34.0
 
March 18, 2019, midnight 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) N/A 5.0
 
March 17, 2019, 11 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) N/A 5.0
 
March 17, 2019, 10 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
March 17, 2019, 9 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) N/A 5.0
 
March 17, 2019, 8 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
March 17, 2019, 7 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 17, 2019, 6 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 4.0 μg/m3 (4) N/A 33.0
 
March 17, 2019, 5 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 4.0 μg/m3 (4) N/A 32.0
 
March 17, 2019, 4 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 5.0 μg/m3 (5) N/A 31.0
 
March 17, 2019, 3 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 6.0 μg/m3 (5) N/A 28.0
 
March 17, 2019, 2 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) N/A 27.0
 
March 17, 2019, 1 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) N/A 25.0
 
March 17, 2019, noon 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 7.0 μg/m3 (6) N/A 26.0
 
March 17, 2019, 11 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) N/A 24.0
 
March 17, 2019, 10 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 7.0 μg/m3 (6) N/A 26.0
 
March 17, 2019, 9 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) N/A 28.0
 
March 17, 2019, 8 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 5.0 μg/m3 (5) N/A 29.0
 
March 17, 2019, 7 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 6.0 μg/m3 (5) N/A 32.0
 
March 17, 2019, 6 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 7.0 μg/m3 (6) N/A 30.0
 
March 17, 2019, 5 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 7.0 μg/m3 (6) N/A 28.0
 
March 17, 2019, 4 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 7.0 μg/m3 (6) N/A 29.0
 
March 17, 2019, 3 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 7.0 μg/m3 (6) N/A 30.0
 
March 17, 2019, 2 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 7.0 μg/m3 (6) N/A 31.0
 
March 17, 2019, 1 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 5.0 μg/m3 (5) N/A 33.0
 
March 17, 2019, midnight 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 16, 2019, 11 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 16, 2019, 10 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 16, 2019, 9 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 16, 2019, 8 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 45.0 ppb (35) N/A 3.0 μg/m3 (3) N/A 35.0
 
March 16, 2019, 7 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 16, 2019, 6 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 3.0 μg/m3 (3) N/A 34.0
 
March 16, 2019, 5 p.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 3.0 μg/m3 (3) N/A 33.0
 
March 16, 2019, 4 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 3.0 μg/m3 (3) N/A 33.0
 
March 16, 2019, 3 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 4.0 μg/m3 (4) N/A 32.0
 
March 16, 2019, 2 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) N/A 28.0
 
March 16, 2019, 1 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 8.0 μg/m3 (7) N/A 20.0
 
March 16, 2019, noon 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 7.0 μg/m3 (6) N/A 19.0
 
March 16, 2019, 11 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) N/A 25.0
 
March 16, 2019, 10 a.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 6.0 μg/m3 (5) N/A 24.0
 
March 16, 2019, 9 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 6.0 μg/m3 (5) N/A 23.0
 
March 16, 2019, 8 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) N/A 25.0
 
March 16, 2019, 7 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 7.0 μg/m3 (6) N/A 28.0
 
March 16, 2019, 6 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 7.0 μg/m3 (6) N/A 28.0
 
March 16, 2019, 5 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 6.0 μg/m3 (5) N/A 29.0
 
March 16, 2019, 4 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 5.0 μg/m3 (5) N/A 30.0