ID: 207

AQSQID: 060771002

Site Name: Stockton - Hazelton Street

Added: April 21, 2020, 6:24 p.m.

Updated: Sept. 21, 2021, 4:06 p.m.

Location: Stockton (Fair Oaks), CA

Reporting: True, Located: True

Current AQI: 69.0

Stockton (Fair Oaks) CA, US: 37.95075, -121.26897

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 2 p.m. 70.8 ppb (69) 46.6 ppb (44) N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) 0.41 ppb (5) N/A N/A 69.0
 
Sept. 21, 2021, 1 p.m. 59.1 ppb (57) 34.7 ppb (33) N/A 24.0 ppb (23) N/A N/A 1.0 ppb (1) 0.4 ppb (5) N/A N/A 57.0
 
Sept. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 21, 2021, 11 a.m. 11.8 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 12.0 ppb (12) 0.22 ppb (3) N/A N/A 12.0
 
Sept. 21, 2021, 10 a.m. 24.3 ppb (23) 5.5 ppb (6) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (6) 0.23 ppb (3) N/A N/A 23.0
 
Sept. 21, 2021, 9 a.m. 32.8 ppb (31) 9.6 ppb (10) N/A 23.0 ppb (22) N/A N/A 3.0 ppb (3) 0.21 ppb (3) N/A N/A 31.0
 
Sept. 21, 2021, 8 a.m. 38.5 ppb (37) 16.2 ppb (16) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.22 ppb (3) N/A N/A 37.0
 
Sept. 21, 2021, 7 a.m. 54.1 ppb (52) 20.7 ppb (20) N/A 33.0 ppb (32) N/A N/A 1.0 ppb (1) 0.43 ppb (5) N/A N/A 52.0
 
Sept. 21, 2021, 6 a.m. 52.0 ppb (50) 14.4 ppb (14) N/A 38.0 ppb (36) N/A N/A 3.0 ppb (3) 0.55 ppb (7) N/A N/A 50.0
 
Sept. 21, 2021, 5 a.m. 58.6 ppb (56) 16.5 ppb (16) N/A 42.0 ppb (40) N/A N/A 4.0 ppb (4) 0.74 ppb (8) N/A N/A 56.0
 
Sept. 21, 2021, 4 a.m. 63.4 ppb (62) 18.6 ppb (18) N/A 45.0 ppb (43) N/A N/A 3.0 ppb (3) 0.67 ppb (8) N/A N/A 62.0
 
Sept. 21, 2021, 3 a.m. 68.3 ppb (67) 19.8 ppb (19) N/A N/A N/A N/A 3.0 ppb (3) 0.71 ppb (8) N/A N/A 67.0
 
Sept. 21, 2021, 2 a.m. 14.2 ppb (14) 0.9 ppb (1) N/A 13.0 ppb (13) N/A N/A 38.0 ppb (36) 0.33 ppb (4) N/A N/A 36.0
 
Sept. 21, 2021, 1 a.m. 5.1 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (51) 0.23 ppb (3) N/A N/A 51.0
 
Sept. 21, 2021, midnight 4.9 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (50) 0.23 ppb (3) N/A N/A 50.0
 
Sept. 20, 2021, 11 p.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.21 ppb (3) N/A N/A 46.0
 
Sept. 20, 2021, 10 p.m. 4.6 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) 0.22 ppb (3) N/A N/A 40.0
 
Sept. 20, 2021, 9 p.m. 5.0 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) 0.21 ppb (3) N/A N/A 37.0
 
Sept. 20, 2021, 8 p.m. 5.4 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.22 ppb (3) N/A N/A 32.0
 
Sept. 20, 2021, 7 p.m. 6.9 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2021, 6 p.m. 7.8 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 5 p.m. 10.8 ppb (11) 3.9 ppb (4) N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2021, 4 p.m. 12.3 ppb (12) 4.8 ppb (5) N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2021, 3 p.m. 15.4 ppb (15) 5.8 ppb (6) N/A 10.0 ppb (10) N/A N/A 15.0 ppb (14) 0.27 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2021, 2 p.m. 21.1 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (15) N/A N/A 10.0 ppb (10) 0.33 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2021, 1 p.m. 18.2 ppb (18) 3.7 ppb (4) N/A 15.0 ppb (15) N/A N/A 10.0 ppb (10) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 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. 20, 2021, 11 a.m. 5.3 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) 0.18 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 20, 2021, 10 a.m. 4.7 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (20) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2021, 9 a.m. 4.2 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2021, 8 a.m. 5.1 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2021, 7 a.m. 5.8 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2021, 6 a.m. 5.6 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2021, 5 a.m. 5.6 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2021, 4 a.m. 4.8 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2021, 3 a.m. 6.7 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) 0.23 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 20, 2021, 2 a.m. 8.4 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 33.0 ppb (31) 0.25 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 1 a.m. 4.8 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2021, midnight 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.19 ppb (3) N/A 7.0 μg/m3 (30) 38.0
 
Sept. 19, 2021, 11 p.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 10 p.m. 3.6 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.19 ppb (3) N/A 8.0 μg/m3 (34) 36.0
 
Sept. 19, 2021, 9 p.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 19, 2021, 8 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 7 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 30.0
 
Sept. 19, 2021, 6 p.m. 4.5 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 19, 2021, 5 p.m. 4.6 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) 0.16 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 19, 2021, 4 p.m. 4.9 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 3 p.m. 5.5 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.15 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 19, 2021, 2 p.m. 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 1 p.m. 3.4 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) 0.15 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 19, 2021, noon 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. 19, 2021, 11 a.m. 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 13.0 ppb (13) 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 10 a.m. 5.0 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 13.0 ppb (13) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 9 a.m. 6.3 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 12.0 ppb (12) 0.17 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 19, 2021, 8 a.m. 4.1 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 14.0 ppb (13) 0.16 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 7 a.m. 3.6 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 14.0 ppb (13) 0.16 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 19, 2021, 6 a.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (15) 0.18 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2021, 5 a.m. 3.9 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (15) 0.17 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 19, 2021, 4 a.m. 4.7 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (16) 0.18 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 19, 2021, 3 a.m. 3.9 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 2 a.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (18) 0.18 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 19, 2021, 1 a.m. 3.6 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (19) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, midnight 4.6 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 18, 2021, 11 p.m. 4.6 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2021, 10 p.m. 4.8 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 18, 2021, 9 p.m. 4.9 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) 0.19 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 18, 2021, 8 p.m. 4.9 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.16 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 18, 2021, 7 p.m. 5.5 ppb (6) 1.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.16 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 18, 2021, 6 p.m. 5.5 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) 0.15 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 18, 2021, 5 p.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) 0.17 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2021, 4 p.m. 7.1 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 18, 2021, 3 p.m. 9.8 ppb (10) 2.7 ppb (3) N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) 0.23 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 2 p.m. 9.6 ppb (10) 1.7 ppb (2) N/A 8.0 ppb (8) N/A N/A 18.0 ppb (17) 0.25 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, 1 p.m. 15.9 ppb (15) 2.7 ppb (3) N/A 13.0 ppb (13) N/A N/A 13.0 ppb (13) 0.29 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Sept. 18, 2021, 11 a.m. 9.5 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (9) N/A N/A 15.0 ppb (14) 0.21 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, 10 a.m. 4.9 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) N/A N/A 19.0 μg/m3 (66) 66.0
 
Sept. 18, 2021, 9 a.m. 4.1 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.22 ppb (3) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 18, 2021, 8 a.m. 6.1 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.23 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 18, 2021, 7 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.23 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 6 a.m. 5.9 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.23 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 5 a.m. 7.0 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) 0.26 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 18, 2021, 4 a.m. 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.23 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 18, 2021, 3 a.m. 7.4 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.25 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 18, 2021, 2 a.m. 8.7 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) 0.33 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 18, 2021, 1 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 45.0 ppb (42) 0.32 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
Sept. 18, 2021, midnight 7.8 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 52.0 ppb (49) 0.3 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
Sept. 17, 2021, 11 p.m. 6.5 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 52.0 ppb (49) 0.27 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 17, 2021, 10 p.m. 8.0 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (45) 0.27 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 17, 2021, 9 p.m. 7.1 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) 0.27 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
Sept. 17, 2021, 8 p.m. 7.7 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) 0.25 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 17, 2021, 7 p.m. 7.5 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.23 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 17, 2021, 6 p.m. 7.5 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.23 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 17, 2021, 5 p.m. 8.7 ppb (9) 3.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) 0.23 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, 4 p.m. 10.7 ppb (11) 4.3 ppb (5) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) 0.25 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, 3 p.m. 19.3 ppb (19) 8.7 ppb (9) N/A 11.0 ppb (11) N/A N/A 13.0 ppb (13) 0.39 ppb (5) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 17, 2021, 2 p.m. 19.7 ppb (19) 6.3 ppb (6) N/A 14.0 ppb (14) N/A N/A 8.0 ppb (8) 0.31 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 17, 2021, 1 p.m. 24.7 ppb (24) 8.9 ppb (9) N/A 16.0 ppb (16) N/A N/A 6.0 ppb (6) 0.29 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 11 a.m. 10.5 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A 13.0 ppb (13) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 10 a.m. 6.0 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) 0.2 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 17, 2021, 9 a.m. 5.9 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) 0.19 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 17, 2021, 8 a.m. 5.5 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 17, 2021, 7 a.m. 5.7 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (19) 0.23 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 17, 2021, 6 a.m. 7.3 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) 0.25 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, 5 a.m. 7.6 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.26 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, 4 a.m. 5.9 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.23 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 17, 2021, 3 a.m. 8.7 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 17, 2021, 2 a.m. 9.0 ppb (9) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) 0.33 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 1 a.m. 7.9 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 17, 2021, midnight 6.7 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (43) 0.27 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 11 p.m. 6.8 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (45) 0.26 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 16, 2021, 10 p.m. 7.0 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 47.0 ppb (44) 0.26 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 16, 2021, 9 p.m. 7.8 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) 0.22 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 8 p.m. 6.8 ppb (7) 1.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) 0.22 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 7 p.m. 6.8 ppb (7) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 16, 2021, 6 p.m. 7.2 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (31) 0.28 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 16, 2021, 5 p.m. 8.8 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.2 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 4 p.m. 8.6 ppb (9) 2.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.22 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 3 p.m. 9.7 ppb (10) 2.6 ppb (3) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) 0.24 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 2 p.m. 11.7 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.26 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 16, 2021, 1 p.m. 10.0 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) 0.24 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 11 a.m. 11.2 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) 0.23 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 16, 2021, 10 a.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) 0.22 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 9 a.m. 7.1 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.19 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 8 a.m. 6.6 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) 0.2 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 7 a.m. 5.9 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.2 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 6 a.m. 6.3 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.2 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 5 a.m. 6.8 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.2 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, 4 a.m. 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) 0.21 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 3 a.m. 7.8 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) 0.25 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 2 a.m. 9.1 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 35.0 ppb (33) 0.29 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 1 a.m. 8.6 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 16, 2021, midnight 8.3 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) 0.29 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 11 p.m. 8.5 ppb (9) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 50.0 ppb (47) 0.29 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 15, 2021, 10 p.m. 7.9 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 51.0 ppb (48) 0.28 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 15, 2021, 9 p.m. 7.1 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (46) 0.25 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 15, 2021, 8 p.m. 7.2 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (40) 0.24 ppb (3) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 15, 2021, 7 p.m. 7.9 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) 0.24 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 15, 2021, 6 p.m. 9.1 ppb (9) 2.3 ppb (3) N/A 7.0 ppb (7) N/A N/A 31.0 ppb (29) 0.25 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 15, 2021, 5 p.m. 9.7 ppb (10) 2.5 ppb (3) N/A 7.0 ppb (7) N/A N/A 25.0 ppb (24) 0.25 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 15, 2021, 4 p.m. 12.8 ppb (13) 3.8 ppb (4) N/A 9.0 ppb (9) N/A N/A 21.0 ppb (20) 0.27 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 3 p.m. 16.4 ppb (16) 5.1 ppb (5) N/A 11.0 ppb (11) N/A N/A 17.0 ppb (16) 0.3 ppb (4) N/A 26.0 μg/m3 (81) 81.0
 
Sept. 15, 2021, 2 p.m. 18.7 ppb (18) 4.8 ppb (5) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) 0.3 ppb (4) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 15, 2021, 1 p.m. 16.7 ppb (16) 1.9 ppb (2) N/A 15.0 ppb (15) N/A N/A 13.0 ppb (13) 0.27 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (72) 72.0
 
Sept. 15, 2021, 11 a.m. 10.9 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 18.0 ppb (17) 0.21 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 15, 2021, 10 a.m. 15.2 ppb (15) 1.0 ppb (1) N/A 14.0 ppb (14) N/A N/A 13.0 ppb (13) 0.24 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 15, 2021, 9 a.m. 11.7 ppb (12) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 15.0 ppb (14) 0.22 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 15, 2021, 8 a.m. 14.6 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) 0.26 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 15, 2021, 7 a.m. 17.2 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (17) N/A N/A 16.0 ppb (15) 0.3 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 15, 2021, 6 a.m. 8.6 ppb (9) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) 0.26 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
Sept. 15, 2021, 5 a.m. 7.6 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.24 ppb (3) N/A 28.0 μg/m3 (85) 85.0
 
Sept. 15, 2021, 4 a.m. 6.2 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.23 ppb (3) N/A 29.0 μg/m3 (87) 87.0
 
Sept. 15, 2021, 3 a.m. 8.6 ppb (9) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.14 ppb (2) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 2 a.m. 7.8 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 48.0 ppb (45) 0.24 ppb (3) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 15, 2021, 1 a.m. 8.2 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 59.0 ppb (65) 0.36 ppb (5) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 15, 2021, midnight 6.0 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 60.0 ppb (68) 0.33 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 14, 2021, 11 p.m. 5.5 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (50) 0.28 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 14, 2021, 10 p.m. 6.2 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (50) 0.27 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 14, 2021, 9 p.m. 6.6 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (51) 0.26 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 14, 2021, 8 p.m. 6.1 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (48) 0.24 ppb (3) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 14, 2021, 7 p.m. 8.2 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) 0.27 ppb (4) N/A 25.0 μg/m3 (79) 79.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (74) 74.0
 
Sept. 14, 2021, 4 p.m. 23.3 ppb (22) 8.1 ppb (8) N/A 15.0 ppb (15) N/A N/A 17.0 ppb (16) N/A N/A 18.0 μg/m3 (64) 64.0
 
Sept. 14, 2021, 3 p.m. 32.8 ppb (31) 15.1 ppb (15) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (9) N/A N/A 20.0 μg/m3 (68) 68.0