AQSQID: 490450004

Site Name: Erda

Location: Tooele Co, UT

Reporting: True, Located: True

Current AQI: 32.0

Tooele Co UT, US: 40.600556, -112.355

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 21, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 1.9 μg/m3 (8) 32.0
 
March 21, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
March 21, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 1.7 μg/m3 (7) 32.0
 
March 21, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A 1.8 μg/m3 (8) 32.0
 
March 21, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
March 21, 2019, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
March 21, 2019, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 1.9 μg/m3 (8) 29.0
 
March 21, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 2.2 μg/m3 (9) 32.0
 
March 21, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) N/A N/A 1.9 μg/m3 (8) 40.0
 
March 21, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) N/A N/A 2.8 μg/m3 (12) 40.0
 
March 21, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
March 20, 2019, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (44) N/A N/A 3.4 μg/m3 (14) 44.0
 
March 20, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) N/A N/A 3.3 μg/m3 (14) 45.0
 
March 20, 2019, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 3.4 μg/m3 (14) 43.0
 
March 20, 2019, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (42) N/A N/A 3.6 μg/m3 (15) 42.0
 
March 20, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) N/A N/A 1.9 μg/m3 (8) 44.0
 
March 20, 2019, 6 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) N/A N/A 2.4 μg/m3 (10) 39.0
 
March 20, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
March 20, 2019, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 1.8 μg/m3 (8) 38.0
 
March 20, 2019, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 2.1 μg/m3 (9) 36.0
 
March 20, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 2.3 μg/m3 (10) 33.0
 
March 20, 2019, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 2.1 μg/m3 (9) 35.0
 
March 20, 2019, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 2.0 μg/m3 (8) 34.0
 
March 20, 2019, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
March 20, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
March 20, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 1.8 μg/m3 (8) 33.0
 
March 20, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 1.8 μg/m3 (8) 34.0
 
March 20, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 2.7 μg/m3 (11) 32.0
 
March 20, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
March 20, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 6.3 μg/m3 (26) 26.0
 
March 20, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A 6.3 μg/m3 (26) 26.0
 
March 20, 2019, 3 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 20, 2019, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 7.5 μg/m3 (31) 31.0
 
March 20, 2019, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) N/A N/A 7.0 μg/m3 (29) 39.0
 
March 20, 2019, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (45) N/A N/A 7.0 μg/m3 (29) 45.0
 
March 19, 2019, 11 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (45) N/A N/A 10.5 μg/m3 (44) 45.0
 
March 19, 2019, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (43) N/A N/A 9.8 μg/m3 (41) 43.0
 
March 19, 2019, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 8.7 μg/m3 (36) 43.0
 
March 19, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (42) N/A N/A 7.5 μg/m3 (31) 42.0
 
March 19, 2019, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) N/A N/A 7.1 μg/m3 (30) 39.0
 
March 19, 2019, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) N/A N/A 6.1 μg/m3 (25) 38.0
 
March 19, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 5.8 μg/m3 (24) 38.0
 
March 19, 2019, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 4.6 μg/m3 (19) 36.0
 
March 19, 2019, 3 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) N/A N/A 4.4 μg/m3 (18) 29.0
 
March 19, 2019, 2 p.m. 17.0 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) N/A N/A 5.1 μg/m3 (21) 21.0
 
March 19, 2019, 1 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) N/A N/A 3.9 μg/m3 (16) 16.0
 
March 19, 2019, noon 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) N/A N/A 3.9 μg/m3 (16) 17.0
 
March 19, 2019, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) N/A N/A 3.3 μg/m3 (14) 19.0
 
March 19, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A 3.4 μg/m3 (14) 19.0
 
March 19, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A 4.2 μg/m3 (18) 18.0
 
March 19, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A 4.5 μg/m3 (19) 19.0
 
March 19, 2019, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) N/A N/A 4.3 μg/m3 (18) 18.0
 
March 19, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A N/A 4.8 μg/m3 (20) 20.0
 
March 19, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 19, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) N/A N/A 11.3 μg/m3 (47) 47.0
 
March 19, 2019, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 14.7 μg/m3 (56) 56.0
 
March 19, 2019, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A 14.4 μg/m3 (55) 55.0
 
March 19, 2019, 1 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) N/A N/A 16.1 μg/m3 (59) 59.0
 
March 19, 2019, midnight 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (42) N/A N/A 17.8 μg/m3 (62) 62.0
 
March 18, 2019, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (44) N/A N/A 15.8 μg/m3 (58) 58.0
 
March 18, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (42) N/A N/A 17.9 μg/m3 (63) 63.0
 
March 18, 2019, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 17.4 μg/m3 (61) 61.0
 
March 18, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 20.8 μg/m3 (69) 69.0
 
March 18, 2019, 7 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 24.4 μg/m3 (76) 76.0
 
March 18, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 19.0 μg/m3 (65) 65.0
 
March 18, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
March 18, 2019, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 7.1 μg/m3 (30) 32.0
 
March 18, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A 5.2 μg/m3 (22) 22.0
 
March 18, 2019, 2 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A N/A 5.3 μg/m3 (22) 22.0
 
March 18, 2019, 1 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A N/A 5.6 μg/m3 (23) 23.0
 
March 18, 2019, noon 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) N/A N/A 5.1 μg/m3 (21) 21.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.4 μg/m3 (18) 18.0
 
March 18, 2019, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 18, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A N/A 5.3 μg/m3 (22) 22.0
 
March 18, 2019, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A 5.5 μg/m3 (23) 23.0
 
March 18, 2019, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A N/A 4.6 μg/m3 (19) 20.0
 
March 18, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A 5.5 μg/m3 (23) 23.0
 
March 18, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 5.3 μg/m3 (22) 22.0
 
March 18, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 5.9 μg/m3 (25) 25.0
 
March 18, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A N/A 6.5 μg/m3 (27) 27.0
 
March 18, 2019, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 18, 2019, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A N/A 5.7 μg/m3 (24) 35.0
 
March 18, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) N/A N/A 4.4 μg/m3 (18) 38.0
 
March 17, 2019, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) N/A N/A 6.5 μg/m3 (27) 41.0
 
March 17, 2019, 10 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (45) N/A N/A 10.1 μg/m3 (42) 45.0
 
March 17, 2019, 9 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (41) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 17, 2019, 8 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 17, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 17, 2019, 6 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 17, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 17, 2019, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 17, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A 5.4 μg/m3 (23) 23.0
 
March 17, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A N/A 5.5 μg/m3 (23) 23.0
 
March 17, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 5.7 μg/m3 (24) 24.0
 
March 17, 2019, noon 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 5.5 μg/m3 (23) 23.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.4 μg/m3 (14) 19.0
 
March 17, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A N/A 2.4 μg/m3 (10) 22.0
 
March 17, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 3.4 μg/m3 (14) 23.0
 
March 17, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A N/A 4.6 μg/m3 (19) 21.0
 
March 17, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 5.6 μg/m3 (23) 23.0
 
March 17, 2019, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A N/A 5.5 μg/m3 (23) 23.0
 
March 17, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 17, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
March 17, 2019, 3 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 17, 2019, 2 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 17, 2019, 1 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) N/A N/A 8.1 μg/m3 (34) 39.0
 
March 17, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (44) N/A N/A 7.3 μg/m3 (30) 44.0
 
March 16, 2019, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (43) N/A N/A 7.9 μg/m3 (33) 43.0
 
March 16, 2019, 10 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 54.0 ppb (42) N/A N/A 8.1 μg/m3 (34) 42.0
 
March 16, 2019, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) N/A N/A 9.0 μg/m3 (38) 41.0
 
March 16, 2019, 8 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (38) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 16, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 11.3 μg/m3 (47) 47.0
 
March 16, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 11.7 μg/m3 (49) 49.0
 
March 16, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 16, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 16, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 6.8 μg/m3 (28) 28.0
 
March 16, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 16, 2019, noon 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 16, 2019, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 16, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A 5.3 μg/m3 (22) 24.0
 
March 16, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A N/A 5.2 μg/m3 (22) 26.0
 
March 16, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) N/A N/A 5.5 μg/m3 (23) 25.0
 
March 16, 2019, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A N/A 5.5 μg/m3 (23) 23.0
 
March 16, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 6.8 μg/m3 (28) 28.0
 
March 16, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 16, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 16, 2019, 2 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 16, 2019, 1 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) N/A N/A 6.3 μg/m3 (26) 33.0
 
March 16, 2019, midnight 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
March 15, 2019, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 4.6 μg/m3 (19) 38.0
 
March 15, 2019, 10 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
March 15, 2019, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0
 
March 15, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 2.2 μg/m3 (9) 38.0
 
March 15, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 2.0 μg/m3 (8) 38.0
 
March 15, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 1.4 μg/m3 (6) 38.0
 
March 15, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 1.1 μg/m3 (5) 37.0
 
March 15, 2019, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 1.2 μg/m3 (5) 35.0
 
March 15, 2019, 3 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
March 15, 2019, 2 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
March 15, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 1.3 μg/m3 (5) 25.0
 
March 15, 2019, noon 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A N/A 1.3 μg/m3 (5) 24.0
 
March 15, 2019, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
March 15, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
March 15, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
March 15, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 1.1 μg/m3 (5) 29.0
 
March 15, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
March 15, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
March 15, 2019, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 1.0 μg/m3 (4) 28.0
 
March 15, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
March 15, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A N/A 2.2 μg/m3 (9) 29.0
 
March 15, 2019, 2 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) N/A N/A 3.7 μg/m3 (15) 25.0
 
March 15, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A 2.2 μg/m3 (9) 32.0
 
March 15, 2019, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 1.7 μg/m3 (7) 38.0
 
March 14, 2019, 11 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 1.5 μg/m3 (6) 38.0
 
March 14, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 1.2 μg/m3 (5) 39.0
 
March 14, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 1.1 μg/m3 (5) 38.0
 
March 14, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 1.3 μg/m3 (5) 37.0
 
March 14, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 1.3 μg/m3 (5) 36.0
 
March 14, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 1.5 μg/m3 (6) 35.0
 
March 14, 2019, 5 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 1.5 μg/m3 (6) 34.0
 
March 14, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
March 14, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 14, 2019, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A 3.5 μg/m3 (15) 30.0
 
March 14, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
March 14, 2019, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 2.7 μg/m3 (11) 32.0
 
March 14, 2019, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0