AQSQID: 060990006

Site Name: Turlock - S. Minaret Street

Location: Turlock, CA

Reporting: True, Located: True

Current AQI: 25.0

Turlock CA, US: 37.4883, -120.8358

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 19, 2019, 2 p.m. 9.4 ppb (9) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 1 p.m. 10.8 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2019, noon 9.4 ppb (9) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 11 a.m. 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
 
Sept. 19, 2019, 10 a.m. 8.9 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 10.0 ppb (8) N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 9 a.m. 8.5 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) N/A N/A 0.0 μg/m3 (0) 9.0
 
Sept. 19, 2019, 8 a.m. 5.0 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) N/A N/A 3.0 μg/m3 (12) 15.0
 
Sept. 19, 2019, 7 a.m. 4.2 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Sept. 19, 2019, 6 a.m. 4.1 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
Sept. 19, 2019, 5 a.m. 2.9 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 4 a.m. 4.3 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 3 a.m. 6.0 ppb (6) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 2 a.m. 6.4 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 3.0 μg/m3 (12) 20.0
 
Sept. 19, 2019, 1 a.m. 3.7 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Sept. 19, 2019, midnight 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Sept. 18, 2019, 11 p.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Sept. 18, 2019, 10 p.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Sept. 18, 2019, 9 p.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 1.0 μg/m3 (4) 28.0
 
Sept. 18, 2019, 8 p.m. 5.2 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) N/A N/A 1.0 μg/m3 (4) 29.0
 
Sept. 18, 2019, 7 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 3.0 μg/m3 (12) 26.0
 
Sept. 18, 2019, 6 p.m. 6.5 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 5 p.m. 12.6 ppb (12) 4.1 ppb (4) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 4 p.m. 18.4 ppb (17) 7.1 ppb (7) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 3 p.m. 28.1 ppb (26) 13.0 ppb (12) N/A 15.0 ppb (14) N/A N/A 8.0 ppb (6) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 18, 2019, 2 p.m. 34.1 ppb (32) 16.6 ppb (15) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 1 p.m. 36.6 ppb (34) 18.0 ppb (17) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) N/A N/A 3.0 μg/m3 (12) 34.0
 
Sept. 18, 2019, noon 19.9 ppb (18) 3.3 ppb (3) N/A 17.0 ppb (16) N/A N/A 2.0 ppb (2) N/A N/A 4.0 μg/m3 (17) 18.0
 
Sept. 18, 2019, 11 a.m. 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
 
Sept. 18, 2019, 10 a.m. 5.2 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 9 a.m. 5.5 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 8 a.m. 6.8 ppb (6) -0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A N/A 1.0 μg/m3 (4) 11.0
 
Sept. 18, 2019, 7 a.m. 7.0 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A N/A 1.0 μg/m3 (4) 11.0
 
Sept. 18, 2019, 6 a.m. 7.0 ppb (6) -0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) N/A N/A 2.0 μg/m3 (8) 14.0
 
Sept. 18, 2019, 5 a.m. 5.9 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) N/A N/A 0.0 μg/m3 (0) 18.0
 
Sept. 18, 2019, 4 a.m. 6.1 ppb (6) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 1.0 μg/m3 (4) 20.0
 
Sept. 18, 2019, 3 a.m. 8.2 ppb (8) -0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 34.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
Sept. 18, 2019, 2 a.m. 8.9 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
Sept. 18, 2019, 1 a.m. 4.4 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) N/A N/A 3.0 μg/m3 (12) 34.0
 
Sept. 18, 2019, midnight 4.6 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
Sept. 17, 2019, 11 p.m. 5.5 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Sept. 17, 2019, 10 p.m. 4.6 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) N/A N/A 3.0 μg/m3 (12) 36.0
 
Sept. 17, 2019, 9 p.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) N/A N/A 6.0 μg/m3 (25) 34.0
 
Sept. 17, 2019, 8 p.m. 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Sept. 17, 2019, 7 p.m. 6.8 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 17, 2019, 6 p.m. 8.2 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 17, 2019, 5 p.m. 11.7 ppb (11) 3.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 17, 2019, 4 p.m. 17.0 ppb (16) 6.5 ppb (6) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 3 p.m. 38.1 ppb (35) 22.1 ppb (20) N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) N/A N/A 6.0 μg/m3 (25) 35.0
 
Sept. 17, 2019, 2 p.m. 40.8 ppb (38) 24.1 ppb (22) N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (25) 38.0
 
Sept. 17, 2019, 1 p.m. 14.1 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 5.0 ppb (4) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, noon 9.7 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 17, 2019, 11 a.m. 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
 
Sept. 17, 2019, 10 a.m. 8.2 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 10.0 ppb (8) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 9 a.m. 8.8 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 10.0 ppb (8) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 8 a.m. 9.5 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 7 a.m. 9.9 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 11.0 ppb (8) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 6 a.m. 7.8 ppb (7) -0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) N/A N/A 3.0 μg/m3 (12) 14.0
 
Sept. 17, 2019, 5 a.m. 8.0 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) N/A N/A 3.0 μg/m3 (12) 15.0
 
Sept. 17, 2019, 4 a.m. 8.3 ppb (8) -0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 3 a.m. 6.4 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 2 a.m. 7.4 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Sept. 17, 2019, 1 a.m. 4.8 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) N/A N/A 7.0 μg/m3 (29) 33.0
 
Sept. 17, 2019, midnight 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2019, 11 p.m. 4.8 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 10 p.m. 4.7 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 7.0 μg/m3 (29) 32.0
 
Sept. 16, 2019, 9 p.m. 4.3 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Sept. 16, 2019, 8 p.m. 5.3 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
Sept. 16, 2019, 7 p.m. 6.5 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A 3.0 μg/m3 (12) 19.0
 
Sept. 16, 2019, 6 p.m. 5.5 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A N/A 3.0 μg/m3 (12) 21.0
 
Sept. 16, 2019, 5 p.m. 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 4 p.m. 11.0 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 16, 2019, 3 p.m. 23.6 ppb (22) 12.0 ppb (11) N/A 12.0 ppb (11) N/A N/A 5.0 ppb (4) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 2 p.m. 19.8 ppb (18) 8.0 ppb (7) N/A 12.0 ppb (11) N/A N/A 3.0 ppb (2) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 1 p.m. 8.4 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 4.0 ppb (3) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, noon 8.7 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 4.0 ppb (3) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 10 a.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 8.0 ppb (6) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 9 a.m. 3.5 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 13.0 ppb (10) N/A N/A 1.0 μg/m3 (4) 10.0
 
Sept. 16, 2019, 8 a.m. 2.4 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 3.0 μg/m3 (12) 13.0
 
Sept. 16, 2019, 7 a.m. 2.3 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A 3.0 μg/m3 (12) 14.0
 
Sept. 16, 2019, 6 a.m. 2.3 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) N/A N/A 2.0 μg/m3 (8) 15.0
 
Sept. 16, 2019, 5 a.m. 2.0 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 4 a.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 3 a.m. 2.7 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 2 a.m. 2.6 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Sept. 16, 2019, 1 a.m. 2.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 7.0 μg/m3 (29) 35.0
 
Sept. 16, 2019, midnight 2.3 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
Sept. 15, 2019, 11 p.m. 2.4 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) N/A N/A 2.0 μg/m3 (8) 45.0
 
Sept. 15, 2019, 10 p.m. 2.4 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (44) N/A N/A 4.0 μg/m3 (17) 44.0
 
Sept. 15, 2019, 9 p.m. 2.6 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 5.0 μg/m3 (21) 43.0
 
Sept. 15, 2019, 8 p.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
Sept. 15, 2019, 7 p.m. 3.8 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
Sept. 15, 2019, 6 p.m. 4.3 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
Sept. 15, 2019, 5 p.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, 4 p.m. 10.3 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, 3 p.m. 12.4 ppb (11) 2.2 ppb (2) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 2 p.m. 12.4 ppb (11) 1.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 1 p.m. 10.8 ppb (10) -0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, noon 5.5 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 10 a.m. 14.0 ppb (13) 0.9 ppb (1) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, 9 a.m. 3.9 ppb (4) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
Sept. 15, 2019, 8 a.m. 3.9 ppb (4) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 7 a.m. 7.4 ppb (7) -0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 27.0 ppb (21) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2019, 6 a.m. 7.8 ppb (7) -0.6 ppb (0) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Sept. 15, 2019, 5 a.m. 7.0 ppb (6) -0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 15, 2019, 4 a.m. 6.9 ppb (6) -0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2019, 3 a.m. 9.2 ppb (9) -0.6 ppb (0) N/A 10.0 ppb (9) N/A N/A 51.0 ppb (39) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 15, 2019, 2 a.m. 9.7 ppb (9) -0.6 ppb (0) N/A 10.0 ppb (9) N/A N/A 60.0 ppb (46) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 15, 2019, 1 a.m. 4.0 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 79.0 ppb (62) N/A N/A 13.0 μg/m3 (52) 62.0
 
Sept. 15, 2019, midnight 3.7 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 87.0 ppb (68) N/A N/A 12.0 μg/m3 (50) 68.0
 
Sept. 14, 2019, 11 p.m. 3.2 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 84.0 ppb (66) N/A N/A 13.0 μg/m3 (52) 66.0
 
Sept. 14, 2019, 10 p.m. 2.6 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 79.0 ppb (62) N/A N/A 8.0 μg/m3 (33) 62.0
 
Sept. 14, 2019, 9 p.m. 1.9 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 74.0 ppb (57) N/A N/A 9.0 μg/m3 (38) 57.0
 
Sept. 14, 2019, 8 p.m. 2.1 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 71.0 ppb (55) N/A N/A 8.0 μg/m3 (33) 55.0
 
Sept. 14, 2019, 7 p.m. 3.1 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 68.0 ppb (52) N/A N/A 12.0 μg/m3 (50) 52.0
 
Sept. 14, 2019, 6 p.m. 6.5 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 63.0 ppb (48) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 14, 2019, 5 p.m. 15.0 ppb (14) 1.9 ppb (2) N/A 13.0 ppb (12) N/A N/A 45.0 ppb (35) N/A N/A 30.0 μg/m3 (88) 88.0
 
Sept. 14, 2019, 4 p.m. 25.7 ppb (24) 6.3 ppb (6) N/A 19.0 ppb (18) N/A N/A 26.0 ppb (20) N/A N/A 38.0 μg/m3 (106) 106.0
 
Sept. 14, 2019, 3 p.m. 31.1 ppb (29) 11.9 ppb (11) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) N/A N/A 31.0 μg/m3 (90) 90.0
 
Sept. 14, 2019, 2 p.m. 33.0 ppb (31) 14.0 ppb (13) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 14, 2019, 1 p.m. 39.6 ppb (37) 18.3 ppb (17) N/A 21.0 ppb (19) N/A N/A -1.0 ppb (0) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 14, 2019, 11 a.m. 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
 
Sept. 14, 2019, 10 a.m. 17.5 ppb (16) 1.0 ppb (1) N/A 17.0 ppb (16) N/A N/A 4.0 ppb (3) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 14, 2019, 9 a.m. 16.2 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 14, 2019, 8 a.m. 21.2 ppb (20) 1.7 ppb (2) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (4) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 14, 2019, 7 a.m. 24.6 ppb (23) 1.8 ppb (2) N/A 23.0 ppb (21) N/A N/A 5.0 ppb (4) N/A N/A 20.0 μg/m3 (67) 67.0
 
Sept. 14, 2019, 6 a.m. 23.6 ppb (22) 0.7 ppb (1) N/A 23.0 ppb (21) N/A N/A 7.0 ppb (5) N/A N/A 19.0 μg/m3 (65) 65.0
 
Sept. 14, 2019, 5 a.m. 24.6 ppb (23) 0.1 ppb (0) N/A 25.0 ppb (23) N/A N/A 16.0 ppb (12) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 14, 2019, 4 a.m. 24.8 ppb (23) -0.4 ppb (0) N/A 25.0 ppb (23) N/A N/A 31.0 ppb (24) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 3 a.m. 12.8 ppb (12) -0.6 ppb (0) N/A 13.0 ppb (12) N/A N/A 48.0 ppb (37) N/A N/A 7.0 μg/m3 (29) 37.0
 
Sept. 14, 2019, 2 a.m. 9.5 ppb (9) -0.6 ppb (0) N/A 10.0 ppb (9) N/A N/A 58.0 ppb (45) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 14, 2019, 1 a.m. 4.9 ppb (5) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 75.0 ppb (58) N/A N/A 10.0 μg/m3 (42) 58.0
 
Sept. 14, 2019, midnight 4.1 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 81.0 ppb (63) N/A N/A 11.0 μg/m3 (46) 63.0
 
Sept. 13, 2019, 11 p.m. 3.8 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 85.0 ppb (67) N/A N/A 15.0 μg/m3 (56) 67.0
 
Sept. 13, 2019, 10 p.m. 3.1 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 77.0 ppb (60) N/A N/A 8.0 μg/m3 (33) 60.0
 
Sept. 13, 2019, 9 p.m. 2.6 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (48) N/A N/A 7.0 μg/m3 (29) 48.0
 
Sept. 13, 2019, 8 p.m. 2.8 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (48) N/A N/A 10.0 μg/m3 (42) 48.0
 
Sept. 13, 2019, 7 p.m. 3.6 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) N/A N/A 9.0 μg/m3 (38) 46.0
 
Sept. 13, 2019, 6 p.m. 4.8 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (42) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2019, 5 p.m. 8.8 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 45.0 ppb (35) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 13, 2019, 4 p.m. 21.0 ppb (19) 3.8 ppb (4) N/A 17.0 ppb (16) N/A N/A 31.0 ppb (24) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 13, 2019, 3 p.m. 55.1 ppb (51) 25.8 ppb (24) N/A 29.0 ppb (27) N/A N/A 12.0 ppb (9) N/A N/A 24.0 μg/m3 (76) 76.0
 
Sept. 13, 2019, 2 p.m. 86.1 ppb (84) 57.6 ppb (54) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) N/A N/A 30.0 μg/m3 (88) 88.0
 
Sept. 13, 2019, 1 p.m. 58.3 ppb (55) 32.0 ppb (30) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) N/A N/A 21.0 μg/m3 (69) 69.0
 
Sept. 13, 2019, noon 26.9 ppb (25) 6.6 ppb (6) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (8) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 13, 2019, 10 a.m. 15.6 ppb (14) -0.1 ppb (0) N/A 16.0 ppb (15) N/A N/A 13.0 ppb (10) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 13, 2019, 9 a.m. 18.1 ppb (17) 0.2 ppb (0) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 13, 2019, 8 a.m. 19.5 ppb (18) -0.1 ppb (0) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (12) N/A N/A 19.0 μg/m3 (65) 65.0
 
Sept. 13, 2019, 7 a.m. 17.8 ppb (16) -0.3 ppb (0) N/A 18.0 ppb (17) N/A N/A 21.0 ppb (16) N/A N/A N/A 17.0
 
Sept. 13, 2019, 6 a.m. 18.2 ppb (17) -0.2 ppb (0) N/A 18.0 ppb (17) N/A N/A 21.0 ppb (16) N/A N/A N/A 17.0
 
Sept. 13, 2019, 5 a.m. 15.3 ppb (14) -0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Sept. 13, 2019, 4 a.m. 11.8 ppb (11) -0.6 ppb (0) N/A 12.0 ppb (11) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 13, 2019, 3 a.m. 12.5 ppb (12) -0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 40.0 ppb (31) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 13, 2019, 2 a.m. 7.7 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 50.0 ppb (38) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 13, 2019, 1 a.m. 5.1 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 64.0 ppb (49) N/A N/A 10.0 μg/m3 (42) 49.0
 
Sept. 13, 2019, midnight 3.9 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 69.0 ppb (53) N/A N/A 6.0 μg/m3 (25) 53.0
 
Sept. 12, 2019, 11 p.m. 3.8 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 71.0 ppb (55) N/A N/A 6.0 μg/m3 (25) 55.0
 
Sept. 12, 2019, 10 p.m. 3.3 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 70.0 ppb (54) N/A N/A 9.0 μg/m3 (38) 54.0
 
Sept. 12, 2019, 9 p.m. 4.1 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 69.0 ppb (53) N/A N/A 11.0 μg/m3 (46) 53.0
 
Sept. 12, 2019, 8 p.m. 3.5 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (45) N/A N/A 7.0 μg/m3 (29) 45.0
 
Sept. 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 12, 2019, 6 p.m. 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
 
Sept. 12, 2019, 5 p.m. 10.3 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 38.0 ppb (29) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 12, 2019, 4 p.m. 23.9 ppb (22) 6.4 ppb (6) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (19) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 12, 2019, 3 p.m. 39.6 ppb (37) 14.9 ppb (14) N/A 25.0 ppb (23) N/A N/A 12.0 ppb (9) N/A N/A 14.0 μg/m3 (54) 54.0