AQSQID: 060773005

Site Name: Tracyap

Location: San Joaquin Co, CA

Reporting: True, Located: True

Current AQI: 25.0

San Joaquin Co CA, US: 37.6825, -121.4406

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2019, 5 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 27.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Sept. 21, 2019, 4 p.m. 4.6 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 20.0
 
Sept. 21, 2019, 3 p.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 20.0
 
Sept. 21, 2019, 2 p.m. 5.0 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 18.0
 
Sept. 21, 2019, 1 p.m. 5.9 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 17.0
 
Sept. 21, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Sept. 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Sept. 21, 2019, 10 a.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 21.0
 
Sept. 21, 2019, 9 a.m. 1.8 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 23.0
 
Sept. 21, 2019, 8 a.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 26.0
 
Sept. 21, 2019, 7 a.m. 2.7 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 6 a.m. 4.0 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 24.0
 
Sept. 21, 2019, 5 a.m. 4.2 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 18.0 μg/m3 (16) 4.0 μg/m3 (17) 24.0
 
Sept. 21, 2019, 4 a.m. 4.1 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 22.0 μg/m3 (20) 3.0 μg/m3 (12) 24.0
 
Sept. 21, 2019, 3 a.m. 4.5 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 23.0
 
Sept. 21, 2019, 2 a.m. 5.9 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) N/A 29.0 μg/m3 (26) 1.0 μg/m3 (4) 26.0
 
Sept. 21, 2019, 1 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 26.0 μg/m3 (24) 4.0 μg/m3 (17) 27.0
 
Sept. 21, 2019, midnight 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A 27.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2019, 11 p.m. 1.3 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A 22.0 μg/m3 (20) 4.0 μg/m3 (17) 30.0
 
Sept. 20, 2019, 10 p.m. 1.6 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A 52.0 μg/m3 (47) 2.0 μg/m3 (8) 47.0
 
Sept. 20, 2019, 9 p.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) N/A 33.0 μg/m3 (30) -1.0 μg/m3 (0) 30.0
 
Sept. 20, 2019, 8 p.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A 28.0 μg/m3 (25) -1.0 μg/m3 (0) 28.0
 
Sept. 20, 2019, 7 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 13.0 μg/m3 (12) -1.0 μg/m3 (0) 25.0
 
Sept. 20, 2019, 6 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 18.0 μg/m3 (16) 1.0 μg/m3 (4) 22.0
 
Sept. 20, 2019, 5 p.m. 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A 22.0 μg/m3 (20) 2.0 μg/m3 (8) 20.0
 
Sept. 20, 2019, 4 p.m. 3.5 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A 23.0 μg/m3 (21) 1.0 μg/m3 (4) 21.0
 
Sept. 20, 2019, 3 p.m. 5.3 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A 13.0 μg/m3 (12) 1.0 μg/m3 (4) 18.0
 
Sept. 20, 2019, 2 p.m. 7.0 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 16.0
 
Sept. 20, 2019, 1 p.m. 9.3 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 14.0
 
Sept. 20, 2019, noon 6.4 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 10 a.m. 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 22.0
 
Sept. 20, 2019, 9 a.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 23.0
 
Sept. 20, 2019, 8 a.m. 3.0 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 22.0
 
Sept. 20, 2019, 7 a.m. 3.7 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 21.0
 
Sept. 20, 2019, 6 a.m. 2.8 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 24.0
 
Sept. 20, 2019, 5 a.m. 4.2 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 24.0
 
Sept. 20, 2019, 4 a.m. 4.7 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A 20.0 μg/m3 (18) 4.0 μg/m3 (17) 22.0
 
Sept. 20, 2019, 3 a.m. 5.7 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 20.0
 
Sept. 20, 2019, 2 a.m. 4.6 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A 18.0 μg/m3 (16) 3.0 μg/m3 (12) 22.0
 
Sept. 20, 2019, 1 a.m. 1.5 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 17.0 μg/m3 (15) 3.0 μg/m3 (12) 27.0
 
Sept. 20, 2019, midnight 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A 19.0 μg/m3 (17) 5.0 μg/m3 (21) 30.0
 
Sept. 19, 2019, 11 p.m. 1.3 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 30.0
 
Sept. 19, 2019, 10 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 29.0
 
Sept. 19, 2019, 9 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 28.0
 
Sept. 19, 2019, 8 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 27.0
 
Sept. 19, 2019, 7 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 26.0
 
Sept. 19, 2019, 6 p.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 1.0 μg/m3 (4) 25.0
 
Sept. 19, 2019, 5 p.m. 3.6 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A 17.0 μg/m3 (15) 2.0 μg/m3 (8) 22.0
 
Sept. 19, 2019, 4 p.m. 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 22.0
 
Sept. 19, 2019, 3 p.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 2 p.m. 9.1 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) N/A 21.0 μg/m3 (19) 4.0 μg/m3 (17) 19.0
 
Sept. 19, 2019, 1 p.m. 6.2 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 15.0
 
Sept. 19, 2019, noon 3.6 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 18.0
 
Sept. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 10 a.m. 2.2 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 18.0
 
Sept. 19, 2019, 9 a.m. 2.1 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 19.0
 
Sept. 19, 2019, 8 a.m. 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 20.0
 
Sept. 19, 2019, 7 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 20.0
 
Sept. 19, 2019, 6 a.m. 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 0.0 μg/m3 (0) 21.0
 
Sept. 19, 2019, 5 a.m. 1.6 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) -2.0 μg/m3 (0) 22.0
 
Sept. 19, 2019, 4 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A -2.0 μg/m3 (0) -1.0 μg/m3 (0) 22.0
 
Sept. 19, 2019, 3 a.m. 2.0 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 22.0
 
Sept. 19, 2019, 2 a.m. 2.0 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Sept. 19, 2019, 1 a.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 22.0
 
Sept. 19, 2019, midnight 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 25.0
 
Sept. 18, 2019, 11 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 26.0
 
Sept. 18, 2019, 10 p.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 19.0
 
Sept. 18, 2019, 9 p.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 18.0
 
Sept. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 4.0
 
Sept. 18, 2019, 7 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Sept. 18, 2019, 6 p.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A N/A 0.0 μg/m3 (0) 16.0
 
Sept. 18, 2019, 5 p.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) N/A 32.0 μg/m3 (29) 2.0 μg/m3 (8) 29.0
 
Sept. 18, 2019, 4 p.m. 7.0 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A 44.0 μg/m3 (40) 4.0 μg/m3 (17) 40.0
 
Sept. 18, 2019, 3 p.m. 7.4 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 2 p.m. 5.7 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) N/A 40.0 μg/m3 (36) 3.0 μg/m3 (12) 36.0
 
Sept. 18, 2019, 1 p.m. 9.4 ppb (9) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 13.0 ppb (10) N/A 21.0 μg/m3 (19) 2.0 μg/m3 (8) 19.0
 
Sept. 18, 2019, noon 4.7 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) N/A 16.0 μg/m3 (15) 2.0 μg/m3 (8) 15.0
 
Sept. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 1.0 μg/m3 (4) 9.0
 
Sept. 18, 2019, 10 a.m. 3.3 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 17.0
 
Sept. 18, 2019, 9 a.m. 2.4 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 8 a.m. 1.1 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (12) 21.0
 
Sept. 18, 2019, 7 a.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 22.0
 
Sept. 18, 2019, 6 a.m. 0.8 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 23.0
 
Sept. 18, 2019, 5 a.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 22.0
 
Sept. 18, 2019, 4 a.m. 1.4 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 22.0
 
Sept. 18, 2019, 3 a.m. 2.0 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 23.0
 
Sept. 18, 2019, 2 a.m. 2.6 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 23.0
 
Sept. 18, 2019, 1 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 28.0
 
Sept. 18, 2019, midnight 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 38.0
 
Sept. 17, 2019, 11 p.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 41.0
 
Sept. 17, 2019, 10 p.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A 17.0 μg/m3 (15) 3.0 μg/m3 (12) 36.0
 
Sept. 17, 2019, 9 p.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 33.0
 
Sept. 17, 2019, 8 p.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 31.0
 
Sept. 17, 2019, 7 p.m. 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 28.0
 
Sept. 17, 2019, 6 p.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A 21.0 μg/m3 (19) 3.0 μg/m3 (12) 25.0
 
Sept. 17, 2019, 5 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 4 p.m. 5.4 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Sept. 17, 2019, 3 p.m. 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 19.0
 
Sept. 17, 2019, 2 p.m. 11.2 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (12) 13.0
 
Sept. 17, 2019, 1 p.m. 9.2 ppb (9) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, noon 13.2 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 10 a.m. 2.9 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 9 a.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 18.0
 
Sept. 17, 2019, 8 a.m. 2.6 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 18.0
 
Sept. 17, 2019, 7 a.m. 3.0 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 6 a.m. 3.2 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 5 a.m. 3.2 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 18.0
 
Sept. 17, 2019, 4 a.m. 3.4 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 3 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 20.0
 
Sept. 17, 2019, 2 a.m. 3.5 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 22.0
 
Sept. 17, 2019, 1 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Sept. 17, 2019, midnight 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 26.0
 
Sept. 16, 2019, 11 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 26.0
 
Sept. 16, 2019, 10 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 27.0
 
Sept. 16, 2019, 9 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 28.0
 
Sept. 16, 2019, 8 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 28.0
 
Sept. 16, 2019, 7 p.m. 2.9 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A -2.0 μg/m3 (0) 4.0 μg/m3 (17) 27.0
 
Sept. 16, 2019, 6 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 26.0
 
Sept. 16, 2019, 5 p.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 25.0
 
Sept. 16, 2019, 4 p.m. 2.7 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Sept. 16, 2019, 3 p.m. 6.3 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 36.0 μg/m3 (33) 4.0 μg/m3 (17) 33.0
 
Sept. 16, 2019, 2 p.m. 11.7 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 11.0 ppb (8) N/A 60.0 μg/m3 (52) 5.0 μg/m3 (21) 52.0
 
Sept. 16, 2019, 1 p.m. 9.8 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 13.0 ppb (10) N/A 33.0 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
Sept. 16, 2019, noon 7.4 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) N/A 31.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
Sept. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 10 a.m. 1.4 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (14) N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 14.0
 
Sept. 16, 2019, 9 a.m. 0.6 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 15.0
 
Sept. 16, 2019, 8 a.m. 0.6 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) N/A 4.0 μg/m3 (4) -1.0 μg/m3 (0) 15.0
 
Sept. 16, 2019, 7 a.m. 1.1 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 15.0
 
Sept. 16, 2019, 6 a.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 16.0
 
Sept. 16, 2019, 5 a.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 17.0
 
Sept. 16, 2019, 4 a.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A 17.0 μg/m3 (15) 0.0 μg/m3 (0) 19.0
 
Sept. 16, 2019, 3 a.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A 23.0 μg/m3 (21) 2.0 μg/m3 (8) 21.0
 
Sept. 16, 2019, 2 a.m. 0.6 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A 24.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 1 a.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A 54.0 μg/m3 (49) 7.0 μg/m3 (29) 49.0
 
Sept. 16, 2019, midnight 1.1 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A 23.0 μg/m3 (21) -1.0 μg/m3 (0) 30.0
 
Sept. 15, 2019, 11 p.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A 22.0 μg/m3 (20) -1.0 μg/m3 (0) 32.0
 
Sept. 15, 2019, 10 p.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A 29.0 μg/m3 (26) 1.0 μg/m3 (4) 33.0
 
Sept. 15, 2019, 9 p.m. 1.3 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 15.0 μg/m3 (14) 1.0 μg/m3 (4) 35.0
 
Sept. 15, 2019, 8 p.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) N/A 20.0 μg/m3 (18) 0.0 μg/m3 (0) 38.0
 
Sept. 15, 2019, 7 p.m. 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 39.0
 
Sept. 15, 2019, 6 p.m. 4.4 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A 29.0 μg/m3 (26) 3.0 μg/m3 (12) 33.0
 
Sept. 15, 2019, 5 p.m. 6.0 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) N/A 51.0 μg/m3 (46) 4.0 μg/m3 (17) 46.0
 
Sept. 15, 2019, 4 p.m. 6.2 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A 83.0 μg/m3 (64) 8.0 μg/m3 (33) 64.0
 
Sept. 15, 2019, 3 p.m. 6.6 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Sept. 15, 2019, 2 p.m. 9.4 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A 20.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 1 p.m. 7.5 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 13.0 ppb (10) N/A 22.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, noon 6.7 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 33.0 μg/m3 (30) 4.0 μg/m3 (17) 30.0
 
Sept. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 10 a.m. 7.7 ppb (7) -0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) N/A 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 9 a.m. 6.9 ppb (6) -0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) N/A 28.0 μg/m3 (25) 3.0 μg/m3 (12) 25.0
 
Sept. 15, 2019, 8 a.m. 4.8 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) N/A 41.0 μg/m3 (37) 4.0 μg/m3 (17) 37.0
 
Sept. 15, 2019, 7 a.m. 2.7 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A 18.0 μg/m3 (16) 2.0 μg/m3 (8) 27.0
 
Sept. 15, 2019, 6 a.m. 3.9 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) -1.0 μg/m3 (0) 25.0
 
Sept. 15, 2019, 5 a.m. 3.9 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A 19.0 μg/m3 (17) 0.0 μg/m3 (0) 25.0
 
Sept. 15, 2019, 4 a.m. 2.5 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A 16.0 μg/m3 (15) -2.0 μg/m3 (0) 31.0
 
Sept. 15, 2019, 3 a.m. 2.2 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 0.0 μg/m3 (0) 32.0
 
Sept. 15, 2019, 2 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A 53.0 μg/m3 (48) 2.0 μg/m3 (8) 48.0
 
Sept. 15, 2019, 1 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 37.0
 
Sept. 15, 2019, midnight 2.0 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (48) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 48.0
 
Sept. 14, 2019, 11 p.m. 1.9 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 77.0 ppb (60) N/A 43.0 μg/m3 (39) 6.0 μg/m3 (25) 60.0
 
Sept. 14, 2019, 10 p.m. 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 76.0 ppb (59) N/A 53.0 μg/m3 (48) 7.0 μg/m3 (29) 59.0
 
Sept. 14, 2019, 9 p.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 77.0 ppb (60) N/A 53.0 μg/m3 (48) 10.0 μg/m3 (42) 60.0
 
Sept. 14, 2019, 8 p.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 71.0 ppb (55) N/A 51.0 μg/m3 (46) 8.0 μg/m3 (33) 55.0
 
Sept. 14, 2019, 7 p.m. 3.2 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (50) N/A 70.0 μg/m3 (58) 9.0 μg/m3 (38) 58.0
 
Sept. 14, 2019, 6 p.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 60.0 ppb (46) N/A 51.0 μg/m3 (46) 9.0 μg/m3 (38) 46.0