AQSQID: 490110004

Site Name: Bv

Location: Bountiful, UT

Reporting: True, Located: True

Current AQI: 43.0

Bountiful UT, US: 40.897999, -111.885498

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, noon 46.0 ppb (43) 10.0 ppb (9) N/A 36.0 ppb (33) N/A N/A 4.0 ppb (3) N/A N/A 3.4 μg/m3 (14) 43.0
 
March 19, 2019, 11 a.m. 34.0 ppb (31) 2.0 ppb (2) N/A 32.0 ppb (30) N/A N/A 8.0 ppb (6) N/A N/A 2.8 μg/m3 (12) 31.0
 
March 19, 2019, 10 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 28.0 ppb (22) N/A N/A 2.4 μg/m3 (10) 22.0
 
March 19, 2019, 9 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
March 19, 2019, 8 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 18.0 ppb (17) N/A N/A 21.0 ppb (16) N/A N/A 2.3 μg/m3 (10) 17.0
 
March 19, 2019, 7 a.m. 17.0 ppb (16) 0.0 ppb (0) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) N/A N/A 1.9 μg/m3 (8) 17.0
 
March 19, 2019, 6 a.m. 16.0 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 23.0 ppb (18) N/A N/A 1.3 μg/m3 (5) 18.0
 
March 19, 2019, 5 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) N/A N/A 1.1 μg/m3 (5) 27.0
 
March 19, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) N/A N/A 1.2 μg/m3 (5) 30.0
 
March 19, 2019, 3 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) N/A N/A 1.4 μg/m3 (6) 27.0
 
March 19, 2019, 2 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) N/A N/A 1.4 μg/m3 (6) 28.0
 
March 19, 2019, 1 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 38.0 ppb (29) N/A N/A 1.5 μg/m3 (6) 29.0
 
March 19, 2019, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) N/A N/A 1.5 μg/m3 (6) 34.0
 
March 18, 2019, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 47.0 ppb (36) N/A N/A 3.2 μg/m3 (13) 36.0
 
March 18, 2019, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (39) N/A N/A 5.7 μg/m3 (24) 39.0
 
March 18, 2019, 9 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
March 18, 2019, 8 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 6.1 μg/m3 (25) 41.0
 
March 18, 2019, 7 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 49.0 ppb (38) N/A N/A 8.4 μg/m3 (35) 38.0
 
March 18, 2019, 6 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A 47.0 ppb (36) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 18, 2019, 5 p.m. 16.0 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (11) N/A N/A 42.0 ppb (32) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 18, 2019, 4 p.m. 19.0 ppb (18) 5.0 ppb (5) N/A 14.0 ppb (13) N/A N/A 38.0 ppb (29) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 18, 2019, 3 p.m. 59.0 ppb (55) 29.0 ppb (27) N/A 30.0 ppb (28) N/A N/A 19.0 ppb (15) N/A N/A 10.8 μg/m3 (45) 55.0
 
March 18, 2019, 2 p.m. 70.0 ppb (67) 35.0 ppb (32) N/A 35.0 ppb (32) N/A N/A 13.0 ppb (10) N/A N/A 8.9 μg/m3 (37) 67.0
 
March 18, 2019, 1 p.m. 50.0 ppb (46) 17.0 ppb (16) N/A 33.0 ppb (31) N/A N/A 7.0 ppb (5) N/A N/A 5.9 μg/m3 (25) 46.0
 
March 18, 2019, noon 63.0 ppb (60) 22.0 ppb (20) N/A 41.0 ppb (38) N/A N/A 1.0 ppb (1) N/A N/A 5.5 μg/m3 (23) 60.0
 
March 18, 2019, 11 a.m. 37.0 ppb (34) 4.0 ppb (4) N/A 33.0 ppb (31) N/A N/A 6.0 ppb (5) N/A N/A 5.0 μg/m3 (21) 34.0
 
March 18, 2019, 10 a.m. 24.0 ppb (22) 1.0 ppb (1) N/A 23.0 ppb (21) N/A N/A 13.0 ppb (10) N/A N/A 5.0 μg/m3 (21) 22.0
 
March 18, 2019, 9 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 19.0 ppb (15) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 18, 2019, 8 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) N/A N/A 3.5 μg/m3 (15) 19.0
 
March 18, 2019, 7 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 23.0 ppb (18) N/A N/A 2.8 μg/m3 (12) 18.0
 
March 18, 2019, 6 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) N/A N/A 2.6 μg/m3 (11) 19.0
 
March 18, 2019, 5 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) N/A N/A 3.1 μg/m3 (13) 20.0
 
March 18, 2019, 4 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) N/A N/A 2.8 μg/m3 (12) 28.0
 
March 18, 2019, 3 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) N/A N/A 2.9 μg/m3 (12) 31.0
 
March 18, 2019, 2 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) N/A N/A 3.5 μg/m3 (15) 32.0
 
March 18, 2019, 1 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 42.0 ppb (32) N/A N/A 2.7 μg/m3 (11) 32.0
 
March 18, 2019, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
March 17, 2019, 11 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (42) N/A N/A 4.7 μg/m3 (20) 42.0
 
March 17, 2019, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (42) N/A N/A 5.9 μg/m3 (25) 42.0
 
March 17, 2019, 9 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 59.0 ppb (45) N/A N/A 9.3 μg/m3 (39) 45.0
 
March 17, 2019, 8 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 59.0 ppb (45) N/A N/A 10.6 μg/m3 (44) 45.0
 
March 17, 2019, 7 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 55.0 ppb (42) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 17, 2019, 6 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 52.0 ppb (40) N/A N/A 12.5 μg/m3 (51) 51.0
 
March 17, 2019, 5 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 50.0 ppb (38) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 17, 2019, 4 p.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A N/A 43.0 ppb (33) N/A N/A 15.1 μg/m3 (57) 57.0
 
March 17, 2019, 3 p.m. 21.0 ppb (19) 6.0 ppb (6) N/A 15.0 ppb (14) N/A N/A 34.0 ppb (26) N/A N/A 12.6 μg/m3 (51) 51.0
 
March 17, 2019, 2 p.m. 26.0 ppb (24) 8.0 ppb (7) N/A 18.0 ppb (17) N/A N/A 27.0 ppb (21) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 17, 2019, 1 p.m. 35.0 ppb (32) 9.0 ppb (8) N/A 26.0 ppb (24) N/A N/A 12.0 ppb (9) N/A N/A 7.4 μg/m3 (31) 32.0
 
March 17, 2019, noon 35.0 ppb (32) 3.0 ppb (3) N/A 32.0 ppb (30) N/A N/A 5.0 ppb (4) N/A N/A 5.5 μg/m3 (23) 32.0
 
March 17, 2019, 11 a.m. 27.0 ppb (25) 1.0 ppb (1) N/A 26.0 ppb (24) N/A N/A 10.0 ppb (8) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 17, 2019, 9 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 19.0 ppb (15) N/A N/A 4.4 μg/m3 (18) 18.0
 
March 17, 2019, 8 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 20.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
March 17, 2019, 7 a.m. 17.0 ppb (16) 0.0 ppb (0) N/A 17.0 ppb (16) N/A N/A 21.0 ppb (16) N/A N/A 4.9 μg/m3 (20) 20.0
 
March 17, 2019, 6 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 17.0 ppb (16) N/A N/A 22.0 ppb (17) N/A N/A 4.8 μg/m3 (20) 20.0
 
March 17, 2019, 5 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 18.0 ppb (17) N/A N/A 22.0 ppb (17) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 17, 2019, 4 a.m. 20.0 ppb (19) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A 20.0 ppb (15) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 17, 2019, 3 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 18.0 ppb (14) N/A N/A 4.5 μg/m3 (19) 19.0
 
March 17, 2019, 2 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) N/A N/A 3.9 μg/m3 (16) 24.0
 
March 17, 2019, 1 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 40.0 ppb (31) N/A N/A 3.0 μg/m3 (12) 31.0
 
March 17, 2019, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
March 16, 2019, 11 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) N/A N/A 4.8 μg/m3 (20) 40.0
 
March 16, 2019, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (42) N/A N/A 6.4 μg/m3 (27) 42.0
 
March 16, 2019, 9 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (41) N/A N/A 8.4 μg/m3 (35) 41.0
 
March 16, 2019, 8 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 52.0 ppb (40) N/A N/A 8.4 μg/m3 (35) 40.0
 
March 16, 2019, 7 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A 48.0 ppb (37) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 16, 2019, 6 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A 47.0 ppb (36) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 16, 2019, 5 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 47.0 ppb (36) N/A N/A 12.5 μg/m3 (51) 51.0
 
March 16, 2019, 4 p.m. 14.0 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A N/A 41.0 ppb (32) N/A N/A 12.2 μg/m3 (50) 50.0
 
March 16, 2019, 3 p.m. 29.0 ppb (27) 10.0 ppb (9) N/A 18.0 ppb (17) N/A N/A 30.0 ppb (23) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 16, 2019, 2 p.m. 48.0 ppb (44) 20.0 ppb (19) N/A 28.0 ppb (26) N/A N/A 17.0 ppb (13) N/A N/A 10.0 μg/m3 (42) 44.0
 
March 16, 2019, 1 p.m. 38.0 ppb (35) 10.0 ppb (9) N/A 28.0 ppb (26) N/A N/A 13.0 ppb (10) N/A N/A 6.3 μg/m3 (26) 35.0
 
March 16, 2019, noon 33.0 ppb (31) 2.0 ppb (2) N/A 32.0 ppb (30) N/A N/A 10.0 ppb (8) N/A N/A 4.6 μg/m3 (19) 31.0
 
March 16, 2019, 11 a.m. 26.0 ppb (24) 0.0 ppb (0) N/A 26.0 ppb (24) N/A N/A 14.0 ppb (11) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 5.6 μg/m3 (23) 23.0
 
March 16, 2019, 9 a.m. 17.0 ppb (16) 0.0 ppb (0) N/A 16.0 ppb (15) N/A N/A 25.0 ppb (19) N/A N/A 3.8 μg/m3 (16) 19.0
 
March 16, 2019, 8 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 30.0 ppb (23) N/A N/A 3.6 μg/m3 (15) 23.0
 
March 16, 2019, 7 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 31.0 ppb (24) N/A N/A 3.4 μg/m3 (14) 24.0
 
March 16, 2019, 6 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
March 16, 2019, 5 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) N/A N/A 3.4 μg/m3 (14) 32.0
 
March 16, 2019, 4 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 38.0 ppb (29) N/A N/A 3.0 μg/m3 (12) 29.0
 
March 16, 2019, 3 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 31.0 ppb (24) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 16, 2019, 2 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 16, 2019, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 16, 2019, midnight 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 15, 2019, 11 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) N/A N/A 7.2 μg/m3 (30) 34.0
 
March 15, 2019, 10 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) N/A N/A 6.5 μg/m3 (27) 35.0
 
March 15, 2019, 9 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (36) N/A N/A 5.7 μg/m3 (24) 36.0
 
March 15, 2019, 8 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (35) N/A N/A 7.5 μg/m3 (31) 35.0
 
March 15, 2019, 7 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 45.0 ppb (35) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 15, 2019, 6 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A 43.0 ppb (33) N/A N/A 5.9 μg/m3 (25) 33.0
 
March 15, 2019, 5 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) N/A N/A 2.8 μg/m3 (12) 34.0
 
March 15, 2019, 4 p.m. 22.0 ppb (20) 8.0 ppb (7) N/A 14.0 ppb (13) N/A N/A 35.0 ppb (27) N/A N/A 3.8 μg/m3 (16) 27.0
 
March 15, 2019, 3 p.m. 18.0 ppb (17) 7.0 ppb (6) N/A 11.0 ppb (10) N/A N/A 35.0 ppb (27) N/A N/A 2.8 μg/m3 (12) 27.0
 
March 15, 2019, 2 p.m. 31.0 ppb (29) 11.0 ppb (10) N/A 20.0 ppb (19) N/A N/A 26.0 ppb (20) N/A N/A 2.6 μg/m3 (11) 29.0
 
March 15, 2019, 1 p.m. 62.0 ppb (59) 25.0 ppb (23) N/A 37.0 ppb (34) N/A N/A 7.0 ppb (5) N/A N/A 2.8 μg/m3 (12) 59.0
 
March 15, 2019, noon 44.0 ppb (41) 8.0 ppb (7) N/A 37.0 ppb (34) N/A N/A 4.0 ppb (3) N/A N/A 2.2 μg/m3 (9) 41.0
 
March 15, 2019, 11 a.m. 29.0 ppb (27) 2.0 ppb (2) N/A 28.0 ppb (26) N/A N/A 12.0 ppb (9) N/A N/A 1.2 μg/m3 (5) 27.0
 
March 15, 2019, 10 a.m. 23.0 ppb (21) 1.0 ppb (1) N/A 22.0 ppb (20) N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 21.0
 
March 15, 2019, 9 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 17.0 ppb (16) N/A N/A 23.0 ppb (18) N/A N/A 1.1 μg/m3 (5) 18.0
 
March 15, 2019, 8 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A N/A 0.8 μg/m3 (3) 25.0
 
March 15, 2019, 7 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) N/A N/A 0.7 μg/m3 (3) 29.0
 
March 15, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A N/A 0.8 μg/m3 (3) 31.0
 
March 15, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 0.7 μg/m3 (3) 32.0
 
March 15, 2019, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
March 15, 2019, 3 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0
 
March 15, 2019, 2 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 34.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
March 15, 2019, 1 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 38.0 ppb (29) N/A N/A 1.2 μg/m3 (5) 29.0
 
March 15, 2019, midnight 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
March 14, 2019, 11 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) N/A N/A 1.2 μg/m3 (5) 34.0
 
March 14, 2019, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
March 14, 2019, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
March 14, 2019, 8 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) N/A N/A 3.2 μg/m3 (13) 37.0
 
March 14, 2019, 7 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) N/A N/A 3.3 μg/m3 (14) 36.0
 
March 14, 2019, 6 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (32) N/A N/A 4.4 μg/m3 (18) 32.0
 
March 14, 2019, 5 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 4.7 μg/m3 (20) 31.0
 
March 14, 2019, 4 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A 37.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
March 14, 2019, 3 p.m. 21.0 ppb (19) 9.0 ppb (8) N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) N/A N/A 6.5 μg/m3 (27) 27.0
 
March 14, 2019, 2 p.m. 23.0 ppb (21) 8.0 ppb (7) N/A 15.0 ppb (14) N/A N/A 27.0 ppb (21) N/A N/A 5.4 μg/m3 (23) 23.0
 
March 14, 2019, 1 p.m. 40.0 ppb (37) 13.0 ppb (12) N/A 27.0 ppb (25) N/A N/A 13.0 ppb (10) N/A N/A 4.0 μg/m3 (17) 37.0
 
March 14, 2019, noon 27.0 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (23) N/A N/A 13.0 ppb (10) N/A N/A 2.7 μg/m3 (11) 25.0
 
March 14, 2019, 11 a.m. 14.0 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 27.0 ppb (21) N/A N/A 2.0 μg/m3 (8) 21.0
 
March 14, 2019, 10 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) N/A N/A 1.7 μg/m3 (7) 24.0
 
March 14, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 1.5 μg/m3 (6) 26.0
 
March 14, 2019, 8 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 1.3 μg/m3 (5) 28.0
 
March 14, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 1.3 μg/m3 (5) 30.0
 
March 14, 2019, 6 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
March 14, 2019, 5 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) N/A N/A 2.4 μg/m3 (10) 28.0
 
March 14, 2019, 4 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 35.0 ppb (27) N/A N/A 2.7 μg/m3 (11) 27.0
 
March 14, 2019, 3 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 39.0 ppb (30) N/A N/A 2.2 μg/m3 (9) 30.0
 
March 14, 2019, 2 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
March 14, 2019, 1 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) N/A N/A 1.0 μg/m3 (4) 31.0
 
March 14, 2019, midnight 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 0.9 μg/m3 (4) 31.0
 
March 13, 2019, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
March 13, 2019, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A N/A 0.8 μg/m3 (3) 33.0
 
March 13, 2019, 9 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A N/A 0.8 μg/m3 (3) 33.0
 
March 13, 2019, 8 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
March 13, 2019, 7 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
March 13, 2019, 6 p.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 0.8 μg/m3 (3) 33.0
 
March 13, 2019, 5 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) N/A N/A 0.8 μg/m3 (3) 34.0
 
March 13, 2019, 4 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) N/A N/A 0.8 μg/m3 (3) 34.0
 
March 13, 2019, 3 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
March 13, 2019, 2 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 12.0 ppb (11) N/A N/A 37.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
March 13, 2019, 1 p.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) N/A N/A 0.9 μg/m3 (4) 28.0
 
March 13, 2019, noon 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
March 13, 2019, 11 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 1.2 μg/m3 (5) 31.0
 
March 13, 2019, 10 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) N/A N/A 1.1 μg/m3 (5) 32.0
 
March 13, 2019, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 0.8 μg/m3 (3) 30.0
 
March 13, 2019, 8 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A N/A 0.9 μg/m3 (4) 28.0
 
March 13, 2019, 7 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
March 12, 2019, 4 p.m. 29.0 ppb (27) 9.0 ppb (8) N/A 20.0 ppb (19) N/A N/A 31.0 ppb (24) N/A N/A 18.9 μg/m3 (65) 65.0
 
March 12, 2019, 3 p.m. 45.0 ppb (42) 16.0 ppb (15) N/A 29.0 ppb (27) N/A N/A 22.0 ppb (17) N/A N/A 17.8 μg/m3 (62) 62.0
 
March 12, 2019, 2 p.m. 69.0 ppb (66) 32.0 ppb (30) N/A 36.0 ppb (33) N/A N/A 13.0 ppb (10) N/A N/A 12.3 μg/m3 (51) 66.0
 
March 12, 2019, 1 p.m. 72.0 ppb (69) 33.0 ppb (31) N/A 40.0 ppb (37) N/A N/A 5.0 ppb (4) N/A N/A 6.5 μg/m3 (27) 69.0
 
March 12, 2019, noon 44.0 ppb (41) 8.0 ppb (7) N/A 36.0 ppb (33) N/A N/A 6.0 ppb (5) N/A N/A 4.4 μg/m3 (18) 41.0
 
March 12, 2019, 11 a.m. 37.0 ppb (34) 4.0 ppb (4) N/A 33.0 ppb (31) N/A N/A 8.0 ppb (6) N/A N/A 3.9 μg/m3 (16) 34.0
 
March 12, 2019, 10 a.m. 31.0 ppb (29) 2.0 ppb (2) N/A 29.0 ppb (27) N/A N/A 9.0 ppb (7) N/A N/A 4.8 μg/m3 (20) 29.0
 
March 12, 2019, 9 a.m. 19.0 ppb (18) 0.0 ppb (0) N/A 18.0 ppb (17) N/A N/A 19.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
March 12, 2019, 8 a.m. 17.0 ppb (16) 0.0 ppb (0) N/A 17.0 ppb (16) N/A N/A 23.0 ppb (18) N/A N/A 4.1 μg/m3 (17) 18.0
 
March 12, 2019, 7 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
March 12, 2019, 6 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) N/A N/A 3.7 μg/m3 (15) 23.0
 
March 12, 2019, 5 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 39.0 ppb (30) N/A N/A 3.7 μg/m3 (15) 30.0
 
March 12, 2019, 4 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
March 12, 2019, 3 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 27.0 ppb (21) N/A N/A 5.3 μg/m3 (22) 22.0
 
March 12, 2019, 2 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 35.0 ppb (27) N/A N/A 5.8 μg/m3 (24) 27.0
 
March 12, 2019, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 47.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
March 12, 2019, midnight 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 46.0 ppb (35) N/A N/A 6.7 μg/m3 (28) 35.0
 
March 11, 2019, 11 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (41) N/A N/A 5.1 μg/m3 (21) 41.0