ID: 1892

AQSQID: 060010011

Site Name: Oakland West

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

Updated: May 25, 2022, 10:49 p.m.

Location: Oakland (Ralph Bunche), CA

Reporting: True, Located: True

Current AQI: 38.0

Oakland (Ralph Bunche) CA, US: 37.8148, -122.282402

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 25, 2022, 9 p.m. 10.6 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 25, 2022, 8 p.m. 12.6 ppb (12) 4.1 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 25, 2022, 8 p.m. 12.6 ppb (12) 4.1 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 25, 2022, 7 p.m. 10.8 ppb (11) 3.3 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 7 p.m. 10.8 ppb (11) 3.3 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 6 p.m. 10.9 ppb (11) 2.9 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) 0.29 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
May 25, 2022, 6 p.m. 10.9 ppb (11) 2.9 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) 0.29 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
May 25, 2022, 5 p.m. 12.0 ppb (12) 2.8 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (30) 0.29 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 5 p.m. 12.0 ppb (12) 2.8 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (30) 0.29 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 4 p.m. 24.2 ppb (23) 7.3 ppb (7) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 24.0 ppb (23) 0.37 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
May 25, 2022, 4 p.m. 24.2 ppb (23) 7.3 ppb (7) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 24.0 ppb (23) 0.37 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
May 25, 2022, 3 p.m. 41.8 ppb (40) 16.2 ppb (16) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 14.0 ppb (13) 0.54 ppb (6) N/A 23.0 μg/m3 (74) 74.0
 
May 25, 2022, 3 p.m. 41.8 ppb (40) 16.2 ppb (16) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 14.0 ppb (13) 0.54 ppb (6) N/A 23.0 μg/m3 (74) 74.0
 
May 25, 2022, 9 a.m. 8.4 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 9 a.m. 8.4 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 9 a.m. 8.4 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 9 a.m. 8.4 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 25, 2022, 5 a.m. 9.5 ppb (9) -0.2 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 25, 2022, 4 a.m. 10.3 ppb (10) -0.1 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 25, 2022, 1 a.m. 10.8 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (30) 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 25, 2022, midnight 8.7 ppb (9) 1.4 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 25, 2022, midnight 8.7 ppb (9) 1.4 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 24, 2022, 9 p.m. 14.6 ppb (14) 3.3 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 31.0 ppb (29) 0.32 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 24, 2022, 8 p.m. 14.7 ppb (14) 3.1 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 33.0 ppb (31) 0.33 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
May 24, 2022, 7 p.m. 24.7 ppb (24) 7.7 ppb (8) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 26.0 ppb (25) 0.37 ppb (5) N/A 19.0 μg/m3 (66) 66.0
 
May 24, 2022, 6 p.m. 24.7 ppb (24) 7.4 ppb (7) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (24) 0.3 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 24, 2022, 5 p.m. 30.9 ppb (30) 11.4 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 19.0 ppb (18) 0.37 ppb (5) N/A 25.0 μg/m3 (79) 79.0
 
May 24, 2022, 4 p.m. 42.6 ppb (41) 19.8 ppb (19) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 13.0 ppb (13) 0.45 ppb (6) N/A 21.0 μg/m3 (70) 70.0
 
May 24, 2022, 3 p.m. 52.1 ppb (50) 27.7 ppb (27) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 7.0 ppb (7) 0.51 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
May 24, 2022, 2 p.m. 32.7 ppb (31) 13.5 ppb (13) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (8) 0.51 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
May 24, 2022, 1 p.m. 30.9 ppb (30) 6.6 ppb (7) N/A 24.0 ppb (23) N/A N/A 1.0 ppb (1) 0.42 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, noon 30.9 ppb (30) 6.6 ppb (7) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 1.0 ppb (1) 0.42 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 10 a.m. 34.8 ppb (33) 5.0 ppb (5) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.31 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 24, 2022, 9 a.m. 25.4 ppb (24) 0.6 ppb (1) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 5.0 ppb (5) 0.29 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 24, 2022, 8 a.m. 19.0 ppb (18) -0.3 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 10.0 ppb (10) 0.32 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 6 a.m. 6.8 ppb (7) -0.4 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (21) 0.26 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 24, 2022, 5 a.m. 5.7 ppb (6) -0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 24, 2022, 5 a.m. 5.7 ppb (6) -0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 24, 2022, 4 a.m. 11.7 ppb (12) -0.3 ppb (0) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 18.0 ppb (17) 0.29 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 4 a.m. 11.7 ppb (12) -0.3 ppb (0) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 18.0 ppb (17) 0.29 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 3 a.m. 6.5 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) 0.27 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 3 a.m. 6.5 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) 0.27 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 24, 2022, 2 a.m. 5.6 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) 0.28 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
May 24, 2022, 2 a.m. 5.6 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) 0.28 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
May 24, 2022, 1 a.m. 8.4 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (25) 0.29 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 24, 2022, 1 a.m. 8.4 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (25) 0.29 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 24, 2022, midnight 8.2 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 24, 2022, midnight 8.2 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 23, 2022, 11 p.m. 14.6 ppb (14) 3.5 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (24) 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
May 23, 2022, 11 p.m. 14.6 ppb (14) 3.5 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (24) 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
May 23, 2022, 8 p.m. 12.0 ppb (12) 2.7 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (25) 0.27 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 23, 2022, 7 p.m. 14.7 ppb (14) 3.6 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 27.0 ppb (25) 0.29 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 23, 2022, 6 p.m. 10.3 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (28) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 23, 2022, 3 p.m. 14.2 ppb (14) 3.3 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (21) 0.32 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 23, 2022, 2 p.m. 11.1 ppb (11) 1.7 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) 0.32 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 23, 2022, 11 a.m. 9.1 ppb (9) -0.4 ppb (0) N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
May 23, 2022, 10 a.m. 8.2 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) 0.24 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
May 23, 2022, 10 a.m. 8.2 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) 0.24 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
May 23, 2022, 9 a.m. 8.2 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) 0.24 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
May 23, 2022, 3 a.m. 6.9 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.28 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
May 23, 2022, 2 a.m. 9.1 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (22) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 23, 2022, 1 a.m. 6.0 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.27 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 23, 2022, midnight 8.3 ppb (8) 1.6 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (24) 0.27 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
May 22, 2022, 11 p.m. 9.3 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (24) 0.27 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
May 22, 2022, 9 p.m. 7.6 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (27) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 22, 2022, 8 p.m. 9.9 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 22, 2022, 7 p.m. 10.0 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 22, 2022, 6 p.m. 13.0 ppb (13) 3.5 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.27 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 22, 2022, 5 p.m. 11.7 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (23) 0.27 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
May 22, 2022, 4 p.m. 6.3 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.25 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
May 22, 2022, 3 p.m. 6.7 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) 0.23 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
May 22, 2022, 2 p.m. 7.6 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.23 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
May 22, 2022, 1 p.m. 17.3 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 15.0 ppb (14) 0.24 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
May 22, 2022, 1 p.m. 17.3 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 15.0 ppb (14) 0.24 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
May 22, 2022, noon 17.6 ppb (17) -0.3 ppb (0) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (13) 0.22 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
May 22, 2022, 11 a.m. 16.9 ppb (16) -0.1 ppb (0) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
May 22, 2022, 10 a.m. 16.9 ppb (16) -0.1 ppb (0) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
May 22, 2022, 9 a.m. 24.2 ppb (23) -0.2 ppb (0) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 9.0 ppb (9) 0.23 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
May 22, 2022, 8 a.m. 13.4 ppb (13) -0.4 ppb (0) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 18.0 ppb (17) 0.23 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
May 22, 2022, 7 a.m. 9.6 ppb (10) -0.4 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) 0.23 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
May 22, 2022, 5 a.m. 16.9 ppb (16) 0.2 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (16) 0.25 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
May 22, 2022, 3 a.m. 9.1 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) 0.3 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
May 22, 2022, 2 a.m. 9.4 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) 0.29 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
May 22, 2022, 1 a.m. 12.2 ppb (12) 1.9 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.32 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
May 22, 2022, midnight 8.0 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.29 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 21, 2022, 11 p.m. 8.9 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.26 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
May 21, 2022, 10 p.m. 10.4 ppb (10) 2.5 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (25) 0.28 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 21, 2022, 9 p.m. 8.9 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
May 21, 2022, 8 p.m. 8.3 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) 0.28 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
May 21, 2022, 7 p.m. 10.2 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (28) 0.29 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
May 21, 2022, 6 p.m. 11.7 ppb (12) 2.9 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (25) 0.3 ppb (4) N/A 23.0 μg/m3 (74) 74.0
 
May 21, 2022, 5 p.m. 15.4 ppb (15) 4.6 ppb (5) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 23.0 ppb (22) 0.29 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
May 21, 2022, 4 p.m. 17.2 ppb (17) 5.5 ppb (6) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 20.0 ppb (19) 0.32 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 21, 2022, 3 p.m. 21.2 ppb (20) 6.7 ppb (7) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 16.0 ppb (15) 0.34 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 21, 2022, 2 p.m. 21.5 ppb (21) 5.9 ppb (6) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (13) 0.41 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
May 21, 2022, 1 p.m. 28.7 ppb (28) 7.3 ppb (7) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 4.0 ppb (4) 0.51 ppb (6) N/A 20.0 μg/m3 (68) 68.0
 
May 21, 2022, 1 p.m. 28.7 ppb (28) 7.3 ppb (7) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 4.0 ppb (4) 0.51 ppb (6) N/A 20.0 μg/m3 (68) 68.0
 
May 21, 2022, noon 23.9 ppb (23) 1.9 ppb (2) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 0.5 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
May 21, 2022, 10 a.m. 12.8 ppb (13) -0.3 ppb (0) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 12.0 ppb (12) 0.36 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
May 21, 2022, 9 a.m. 14.3 ppb (14) 0.4 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 13.0 ppb (13) 0.34 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
May 21, 2022, 8 a.m. 20.9 ppb (20) -0.2 ppb (0) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 10.0 ppb (10) 0.29 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
May 21, 2022, 4 a.m. 5.5 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 21, 2022, 3 a.m. 10.4 ppb (10) -0.1 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) 0.32 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
May 21, 2022, 2 a.m. 10.8 ppb (11) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 21, 2022, 1 a.m. 9.1 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (30) 0.22 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
May 21, 2022, midnight 11.1 ppb (11) 1.8 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (29) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
May 20, 2022, 11 p.m. 8.3 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
May 20, 2022, 10 p.m. 9.7 ppb (10) 1.7 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.22 ppb (3) N/A 5.0 μg/m3 (21) 32.0
 
May 20, 2022, 9 p.m. 8.0 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 33.0
 
May 20, 2022, 7 p.m. 8.4 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) N/A 3.0 μg/m3 (13) 32.0
 
May 20, 2022, 6 p.m. 8.8 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 32.0
 
May 20, 2022, 5 p.m. 9.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.21 ppb (3) N/A 4.0 μg/m3 (17) 31.0
 
May 20, 2022, 4 p.m. 7.9 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
May 20, 2022, 3 p.m. 9.7 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 27.0
 
May 20, 2022, 2 p.m. 8.7 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) 0.22 ppb (3) N/A 5.0 μg/m3 (21) 27.0
 
May 20, 2022, 1 p.m. 10.0 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
May 20, 2022, 11 a.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
 
May 20, 2022, 10 a.m. 7.4 ppb (7) -0.2 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (28) 0.23 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
May 20, 2022, 9 a.m. 3.2 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.22 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
May 20, 2022, 8 a.m. 2.8 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
May 20, 2022, 7 a.m. 3.8 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
May 20, 2022, 6 a.m. 4.7 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.25 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
May 20, 2022, 5 a.m. 26.1 ppb (25) -0.2 ppb (0) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 11.0 ppb (11) 0.3 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
May 20, 2022, 4 a.m. 12.1 ppb (12) -0.3 ppb (0) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (23) 0.29 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 20, 2022, 3 a.m. 5.9 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (29) 0.28 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 20, 2022, 2 a.m. 6.8 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (29) 0.29 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 20, 2022, 1 a.m. 14.5 ppb (14) 2.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 29.0 ppb (27) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 20, 2022, 1 a.m. 14.5 ppb (14) 2.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 29.0 ppb (27) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 20, 2022, midnight 7.2 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 20, 2022, midnight 7.2 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 19, 2022, 11 p.m. 9.5 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 19, 2022, 10 p.m. 9.0 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.27 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 19, 2022, 9 p.m. 14.6 ppb (14) 3.3 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 31.0 ppb (29) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 19, 2022, 8 p.m. 12.3 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (30) 0.26 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2022, 7 p.m. 7.4 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 19, 2022, 7 p.m. 7.4 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 19, 2022, 4 p.m. 17.0 ppb (17) 5.3 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 20.0 ppb (19) 0.32 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 19, 2022, 2 p.m. 25.1 ppb (24) 8.3 ppb (8) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (10) 0.32 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 19, 2022, 6 a.m. 14.3 ppb (14) -0.2 ppb (0) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 11.0 ppb (11) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2022, 5 a.m. 30.0 ppb (29) 4.1 ppb (4) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 3.0 ppb (3) 0.36 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
May 19, 2022, 4 a.m. 33.2 ppb (32) 4.8 ppb (5) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 2.0 ppb (2) 0.38 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
May 19, 2022, 3 a.m. 15.8 ppb (15) 0.1 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (13) 0.38 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
May 19, 2022, 2 a.m. 15.6 ppb (15) 1.5 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 16.0 ppb (15) 0.37 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
May 19, 2022, 1 a.m. 17.3 ppb (17) 3.3 ppb (4) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 20.0 ppb (19) 0.32 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2022, 11 p.m. 16.6 ppb (16) 3.5 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (26) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 10 p.m. 11.3 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 9 p.m. 15.2 ppb (15) 2.8 ppb (3) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 18, 2022, 8 p.m. 15.1 ppb (15) 3.0 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 34.0 ppb (32) 0.29 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
May 18, 2022, 7 p.m. 19.2 ppb (19) 4.8 ppb (5) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
May 18, 2022, 5 p.m. 10.1 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.26 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
May 18, 2022, 4 p.m. 9.1 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.26 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 4 p.m. 9.1 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.26 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 3 p.m. 14.0 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (24) 0.31 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2022, 3 p.m. 14.0 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (24) 0.31 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2022, 2 p.m. 11.3 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) 0.33 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2022, 2 p.m. 11.3 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) 0.33 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2022, 1 p.m. 8.6 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 18, 2022, 1 p.m. 8.6 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 18, 2022, noon 3.6 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 18, 2022, noon 3.6 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 18, 2022, 11 a.m. 5.0 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 10 a.m. 5.0 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.29 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
May 18, 2022, 2 a.m. 5.9 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.32 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
May 18, 2022, 1 a.m. 5.4 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.32 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
May 18, 2022, midnight 11.5 ppb (11) 2.5 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (25) 0.33 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 17, 2022, 11 p.m. 9.6 ppb (10) 2.2 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 17, 2022, 10 p.m. 5.4 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.3 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
May 17, 2022, 9 p.m. 8.8 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.3 ppb (4) N/A 8.0 μg/m3 (34) 34.0