AQSQID: 060290014

Site Name: Bakersfield - California Ave

Location: Bakersfield (Oakdale Dr), CA

Reporting: True, Located: True

Current AQI: 41.0

Bakersfield (Oakdale Dr) CA, US: 35.3561, -119.0403

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, 9 p.m. 8.6 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 53.0 ppb (41) N/A N/A 4.0 μg/m3 (17) 41.0
 
March 19, 2019, 8 p.m. 8.7 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 52.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
March 19, 2019, 7 p.m. 14.5 ppb (13) 2.7 ppb (3) N/A 12.0 ppb (11) N/A N/A 45.0 ppb (35) N/A N/A 7.0 μg/m3 (29) 35.0
 
March 19, 2019, 6 p.m. 24.7 ppb (23) 6.3 ppb (6) N/A 19.0 ppb (18) N/A N/A 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 19, 2019, 5 p.m. 41.4 ppb (38) 15.9 ppb (15) N/A 25.0 ppb (23) N/A N/A 22.0 ppb (17) N/A N/A 7.0 μg/m3 (29) 38.0
 
March 19, 2019, 4 p.m. 67.7 ppb (65) 33.6 ppb (31) N/A 34.0 ppb (31) N/A N/A 9.0 ppb (7) N/A N/A 15.0 μg/m3 (56) 65.0
 
March 19, 2019, 3 p.m. 57.5 ppb (54) 27.3 ppb (25) N/A 30.0 ppb (28) N/A N/A 6.0 ppb (5) N/A N/A 22.0 μg/m3 (71) 71.0
 
March 19, 2019, 2 p.m. 74.4 ppb (72) 42.1 ppb (39) N/A 32.0 ppb (30) N/A N/A 2.0 ppb (2) N/A N/A 17.0 μg/m3 (61) 72.0
 
March 19, 2019, 1 p.m. 67.1 ppb (64) 33.7 ppb (31) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (54) 64.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (71) 71.0
 
March 19, 2019, 11 a.m. 49.3 ppb (46) 15.0 ppb (14) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (61) 61.0
 
March 19, 2019, 10 a.m. 49.8 ppb (46) 14.3 ppb (13) N/A 36.0 ppb (33) N/A N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (54) 54.0
 
March 19, 2019, 9 a.m. 33.3 ppb (31) 2.6 ppb (2) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) N/A N/A 22.0 μg/m3 (71) 71.0
 
March 19, 2019, 8 a.m. 29.1 ppb (27) 1.5 ppb (1) N/A 28.0 ppb (26) N/A N/A 6.0 ppb (5) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 19, 2019, 7 a.m. 27.1 ppb (25) 1.3 ppb (1) N/A 26.0 ppb (24) N/A N/A 12.0 ppb (9) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 19, 2019, 6 a.m. 33.0 ppb (31) 2.3 ppb (2) N/A 31.0 ppb (29) N/A N/A 8.0 ppb (6) N/A N/A 18.0 μg/m3 (63) 63.0
 
March 19, 2019, 5 a.m. 32.1 ppb (30) 2.2 ppb (2) N/A 30.0 ppb (28) N/A N/A 11.0 ppb (8) N/A N/A 18.0 μg/m3 (63) 63.0
 
March 19, 2019, 4 a.m. 32.1 ppb (30) 1.6 ppb (1) N/A 31.0 ppb (29) N/A N/A 15.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 19, 2019, 3 a.m. 17.8 ppb (16) 0.7 ppb (1) N/A 17.0 ppb (16) N/A N/A 30.0 ppb (23) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 19, 2019, 2 a.m. 10.1 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
March 19, 2019, 1 a.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
March 19, 2019, midnight 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (44) N/A N/A 6.0 μg/m3 (25) 44.0
 
March 18, 2019, 11 p.m. 5.3 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 60.0 ppb (46) N/A N/A 6.0 μg/m3 (25) 46.0
 
March 18, 2019, 10 p.m. 4.7 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) N/A N/A 5.0 μg/m3 (21) 46.0
 
March 18, 2019, 9 p.m. 9.1 ppb (8) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 56.0 ppb (43) N/A N/A 7.0 μg/m3 (29) 43.0
 
March 18, 2019, 8 p.m. 8.7 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 54.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
March 18, 2019, 7 p.m. 7.0 ppb (6) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 52.0 ppb (40) N/A N/A 7.0 μg/m3 (29) 40.0
 
March 18, 2019, 6 p.m. 13.3 ppb (12) 3.5 ppb (3) N/A 10.0 ppb (9) N/A N/A 40.0 ppb (31) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 18, 2019, 5 p.m. 23.5 ppb (22) 7.8 ppb (7) N/A 16.0 ppb (15) N/A N/A 26.0 ppb (20) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 18, 2019, 4 p.m. 34.7 ppb (32) 14.0 ppb (13) N/A 21.0 ppb (19) N/A N/A 17.0 ppb (13) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 3 p.m. 59.7 ppb (56) 30.8 ppb (29) N/A 29.0 ppb (27) N/A N/A 7.0 ppb (5) N/A N/A 17.0 μg/m3 (61) 61.0
 
March 18, 2019, 2 p.m. 85.5 ppb (84) 50.6 ppb (47) N/A 35.0 ppb (32) N/A N/A 2.0 ppb (2) N/A N/A 15.0 μg/m3 (56) 84.0
 
March 18, 2019, 1 p.m. 53.2 ppb (49) 19.2 ppb (18) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (38) 49.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
March 18, 2019, 11 a.m. 18.3 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (15) N/A N/A 13.0 ppb (10) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 10 a.m. 16.1 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 18, 2019, 9 a.m. 11.7 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 8 a.m. 13.5 ppb (12) 0.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 18, 2019, 7 a.m. 21.6 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A N/A 14.0 ppb (11) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 18, 2019, 6 a.m. 18.7 ppb (17) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A 17.0 ppb (13) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 18, 2019, 5 a.m. 23.0 ppb (21) 1.1 ppb (1) N/A 22.0 ppb (20) N/A N/A 19.0 ppb (15) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 18, 2019, 4 a.m. 20.7 ppb (19) 0.8 ppb (1) N/A 20.0 ppb (19) N/A N/A 25.0 ppb (19) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 18, 2019, 3 a.m. 12.6 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 35.0 ppb (27) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 2 a.m. 7.9 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 44.0 ppb (34) N/A N/A 7.0 μg/m3 (29) 34.0
 
March 18, 2019, 1 a.m. 4.7 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
March 18, 2019, midnight 3.8 ppb (4) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
March 17, 2019, 11 p.m. 3.7 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
March 17, 2019, 10 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (45) N/A N/A 8.0 μg/m3 (33) 45.0
 
March 17, 2019, 9 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (44) N/A N/A 8.0 μg/m3 (33) 44.0
 
March 17, 2019, 8 p.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 10.0 μg/m3 (42) 43.0
 
March 17, 2019, 7 p.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (42) N/A N/A 9.0 μg/m3 (38) 42.0
 
March 17, 2019, 6 p.m. 6.6 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 17, 2019, 5 p.m. 9.5 ppb (9) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A 39.0 ppb (30) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 17, 2019, 4 p.m. 11.4 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 17, 2019, 3 p.m. 16.0 ppb (15) 3.9 ppb (4) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 17, 2019, 2 p.m. 24.7 ppb (23) 4.3 ppb (4) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (7) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 17, 2019, 1 p.m. 22.9 ppb (21) 1.7 ppb (2) N/A 21.0 ppb (19) N/A N/A 9.0 ppb (7) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
March 17, 2019, 11 a.m. 14.8 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 17, 2019, 10 a.m. 17.4 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 13.0 ppb (10) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 17, 2019, 9 a.m. 17.7 ppb (16) 1.1 ppb (1) N/A 17.0 ppb (16) N/A N/A 14.0 ppb (11) N/A N/A 14.0 μg/m3 (54) 54.0
 
March 17, 2019, 8 a.m. 15.3 ppb (14) 0.8 ppb (1) N/A 15.0 ppb (14) N/A N/A 19.0 ppb (15) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 17, 2019, 7 a.m. 20.3 ppb (19) 1.2 ppb (1) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (12) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 17, 2019, 6 a.m. 27.3 ppb (25) 1.6 ppb (1) N/A 26.0 ppb (24) N/A N/A 13.0 ppb (10) N/A N/A 23.0 μg/m3 (73) 73.0
 
March 17, 2019, 5 a.m. 23.4 ppb (22) 1.3 ppb (1) N/A 22.0 ppb (20) N/A N/A 21.0 ppb (16) N/A N/A 18.0 μg/m3 (63) 63.0
 
March 17, 2019, 4 a.m. 11.0 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 36.0 ppb (28) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 17, 2019, 3 a.m. 10.4 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 45.0 ppb (35) N/A N/A 17.0 μg/m3 (61) 61.0
 
March 17, 2019, 2 a.m. 7.6 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 58.0 ppb (45) N/A N/A 18.0 μg/m3 (63) 63.0
 
March 17, 2019, 1 a.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
March 17, 2019, midnight 5.0 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 59.0 ppb (45) N/A N/A 10.0 μg/m3 (42) 45.0
 
March 16, 2019, 11 p.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 62.0 ppb (48) N/A N/A 11.0 μg/m3 (46) 48.0
 
March 16, 2019, 10 p.m. 6.2 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 59.0 ppb (45) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 9 p.m. 7.1 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 57.0 ppb (44) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 8 p.m. 6.2 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 7 p.m. 6.1 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 6 p.m. 8.5 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 16, 2019, 5 p.m. 11.8 ppb (11) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 4 p.m. 19.6 ppb (18) 7.5 ppb (7) N/A 12.0 ppb (11) N/A N/A 21.0 ppb (16) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 16, 2019, 3 p.m. 32.5 ppb (30) 14.0 ppb (13) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 2 p.m. 46.4 ppb (43) 20.1 ppb (19) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 1 p.m. 40.7 ppb (38) 14.1 ppb (13) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 11 a.m. 22.6 ppb (21) 1.7 ppb (2) N/A 21.0 ppb (19) N/A N/A 7.0 ppb (5) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 16, 2019, 10 a.m. 19.0 ppb (18) 1.4 ppb (1) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 9 a.m. 19.2 ppb (18) 1.3 ppb (1) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (9) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 8 a.m. 36.2 ppb (34) 5.7 ppb (5) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 16, 2019, 7 a.m. 47.3 ppb (44) 11.5 ppb (11) N/A 36.0 ppb (33) N/A N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 6 a.m. 36.9 ppb (34) 4.3 ppb (4) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 5 a.m. 30.4 ppb (28) 2.4 ppb (2) N/A 28.0 ppb (26) N/A N/A 10.0 ppb (8) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 4 a.m. 28.1 ppb (26) 0.7 ppb (1) N/A 27.0 ppb (25) N/A N/A 14.0 ppb (11) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 16, 2019, 3 a.m. 21.7 ppb (20) 0.7 ppb (1) N/A 21.0 ppb (19) N/A N/A 24.0 ppb (18) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 2 a.m. 12.7 ppb (12) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 39.0 ppb (30) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 1 a.m. 5.6 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
March 16, 2019, midnight 5.4 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
March 15, 2019, 11 p.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (40) N/A N/A 7.0 μg/m3 (29) 40.0
 
March 15, 2019, 10 p.m. 4.4 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (40) N/A N/A 7.0 μg/m3 (29) 40.0
 
March 15, 2019, 9 p.m. 6.2 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (41) N/A N/A 7.0 μg/m3 (29) 41.0
 
March 15, 2019, 8 p.m. 7.5 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (42) N/A N/A 22.0 μg/m3 (71) 71.0
 
March 15, 2019, 7 p.m. 7.5 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (32) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 6 p.m. 15.7 ppb (15) 4.9 ppb (5) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 15, 2019, 5 p.m. 21.7 ppb (20) 7.7 ppb (7) N/A 14.0 ppb (13) N/A N/A 26.0 ppb (20) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 15, 2019, 4 p.m. 37.5 ppb (35) 17.2 ppb (16) N/A 20.0 ppb (19) N/A N/A 16.0 ppb (12) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 15, 2019, 3 p.m. 48.0 ppb (44) 25.2 ppb (23) N/A 22.0 ppb (20) N/A N/A 9.0 ppb (7) N/A N/A 19.0 μg/m3 (65) 65.0
 
March 15, 2019, 2 p.m. 75.8 ppb (73) 50.2 ppb (46) N/A 26.0 ppb (24) N/A N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (65) 73.0
 
March 15, 2019, 1 p.m. 77.9 ppb (75) 49.1 ppb (45) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (50) 75.0
 
March 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
March 15, 2019, 11 a.m. 43.0 ppb (40) 14.6 ppb (14) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 15, 2019, 10 a.m. 33.4 ppb (31) 7.9 ppb (7) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) N/A N/A 14.0 μg/m3 (54) 54.0
 
March 15, 2019, 9 a.m. 36.1 ppb (33) 11.6 ppb (11) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 15, 2019, 8 a.m. 29.8 ppb (28) 6.1 ppb (6) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) N/A N/A 14.0 μg/m3 (54) 54.0
 
March 15, 2019, 7 a.m. 18.8 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 15, 2019, 6 a.m. 23.4 ppb (22) 1.2 ppb (1) N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 15, 2019, 5 a.m. 26.5 ppb (25) 1.9 ppb (2) N/A 25.0 ppb (23) N/A N/A 13.0 ppb (10) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 4 a.m. 17.4 ppb (16) 1.1 ppb (1) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 15, 2019, 3 a.m. 9.3 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 15, 2019, 2 a.m. 5.6 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
March 15, 2019, 1 a.m. 4.8 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A N/A 2.0 μg/m3 (8) 33.0
 
March 15, 2019, midnight 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) N/A N/A 3.0 μg/m3 (12) 35.0
 
March 14, 2019, 11 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) N/A N/A 0.0 μg/m3 (0) 36.0
 
March 14, 2019, 10 p.m. 4.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) N/A N/A -1.0 μg/m3 (0) 37.0
 
March 14, 2019, 9 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A N/A -2.0 μg/m3 (0) 36.0
 
March 14, 2019, 8 p.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A N/A 1.0 μg/m3 (4) 36.0
 
March 14, 2019, 7 p.m. 5.8 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
March 14, 2019, 6 p.m. 5.1 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
March 14, 2019, 5 p.m. 12.4 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 4 p.m. N/A 7.2 ppb (7) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 3 p.m. 49.7 ppb (46) 25.0 ppb (23) N/A 25.0 ppb (23) N/A N/A 10.0 ppb (8) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 14, 2019, 2 p.m. 50.9 ppb (47) 26.7 ppb (25) N/A 24.0 ppb (22) N/A N/A 2.0 ppb (2) N/A N/A 9.0 μg/m3 (38) 47.0
 
March 14, 2019, 1 p.m. 36.2 ppb (34) 13.7 ppb (13) N/A 23.0 ppb (21) N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (29) 34.0
 
March 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
March 14, 2019, 11 a.m. 19.2 ppb (18) 1.4 ppb (1) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 14, 2019, 10 a.m. 23.1 ppb (21) 7.4 ppb (7) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 21.0
 
March 14, 2019, 9 a.m. 15.2 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A 17.0 ppb (13) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 8 a.m. 25.9 ppb (24) 5.3 ppb (5) N/A 21.0 ppb (19) N/A N/A 10.0 ppb (8) N/A N/A 4.0 μg/m3 (17) 24.0
 
March 14, 2019, 7 a.m. 17.1 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 11.0 ppb (8) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 14, 2019, 6 a.m. 14.9 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 5 a.m. 26.8 ppb (25) 2.6 ppb (2) N/A 24.0 ppb (22) N/A N/A 12.0 ppb (9) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 14, 2019, 4 a.m. 19.8 ppb (18) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 14, 2019, 3 a.m. 10.4 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 2 a.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 14, 2019, 1 a.m. 3.5 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
March 14, 2019, midnight 3.0 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) N/A N/A 3.0 μg/m3 (12) 37.0
 
March 13, 2019, 11 p.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 2.0 μg/m3 (8) 35.0
 
March 13, 2019, 10 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 0.0 μg/m3 (0) 35.0
 
March 13, 2019, 9 p.m. 3.2 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 1.0 μg/m3 (4) 34.0
 
March 13, 2019, 8 p.m. 6.6 ppb (6) 3.7 ppb (3) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
March 13, 2019, 7 p.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
March 13, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
March 13, 2019, 5 p.m. 3.4 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A 0.0 μg/m3 (0) 28.0
 
March 13, 2019, 4 p.m. 6.0 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A N/A 1.0 μg/m3 (4) 25.0
 
March 13, 2019, 3 p.m. 13.5 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) N/A N/A 2.0 μg/m3 (8) 20.0
 
March 13, 2019, 2 p.m. 22.9 ppb (21) 3.8 ppb (4) N/A 19.0 ppb (18) N/A N/A 15.0 ppb (12) N/A N/A 2.0 μg/m3 (8) 21.0
 
March 13, 2019, 1 p.m. 12.8 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) N/A N/A 3.0 μg/m3 (12) 18.0
 
March 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
March 13, 2019, 11 a.m. 7.7 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
March 13, 2019, 10 a.m. 11.9 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
March 13, 2019, 9 a.m. 7.9 ppb (7) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
March 13, 2019, 8 a.m. 4.7 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
March 13, 2019, 7 a.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 3.0 μg/m3 (12) 29.0
 
March 13, 2019, 6 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
March 13, 2019, 5 a.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 13, 2019, 4 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
March 13, 2019, 3 a.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A N/A 1.0 μg/m3 (4) 28.0
 
March 13, 2019, 2 a.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) N/A N/A 2.0 μg/m3 (8) 30.0
 
March 13, 2019, 1 a.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
March 13, 2019, midnight 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 3.0 μg/m3 (12) 34.0
 
March 12, 2019, 11 p.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 3.0 μg/m3 (12) 34.0
 
March 12, 2019, 10 p.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A N/A 1.0 μg/m3 (4) 36.0