ID: 620

AQSQID: 370670022

Site Name: Hattieaven

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

Updated: May 26, 2022, 7:52 p.m.

Location: Winston Salem (E Winston), NC

Reporting: True, Located: True

Current AQI: 29.0

Winston Salem (E Winston) NC, US: 36.1106, -80.2267

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 26, 2022, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 14.0 μg/m3 (13) 6.8 μg/m3 (29) 29.0
 
May 26, 2022, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 12.0 μg/m3 (12) 6.5 μg/m3 (28) 28.0
 
May 26, 2022, 5 p.m. 4.4 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 12.0 μg/m3 (12) 6.5 μg/m3 (28) 28.0
 
May 26, 2022, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 26, 2022, 4 p.m. 4.4 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 26, 2022, 3 p.m. 4.4 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 21.0 ppb (20) N/A 9.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
May 26, 2022, 2 p.m. 4.4 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 8.0 μg/m3 (8) 5.3 μg/m3 (23) 23.0
 
May 26, 2022, 2 p.m. 4.4 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 8.0 μg/m3 (8) 5.3 μg/m3 (23) 23.0
 
May 26, 2022, 1 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 9.0 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
May 26, 2022, noon 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 15.0 ppb (14) N/A 6.0 μg/m3 (6) 3.4 μg/m3 (15) 15.0
 
May 26, 2022, 5 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 19.0
 
May 26, 2022, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 8.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
May 26, 2022, 1 a.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 10.0 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
May 26, 2022, midnight 1.5 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 11.0 μg/m3 (11) 5.8 μg/m3 (25) 25.0
 
May 25, 2022, 11 p.m. 1.7 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 10.0 μg/m3 (10) 5.2 μg/m3 (22) 24.0
 
May 25, 2022, 10 p.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 9.0 μg/m3 (9) 4.1 μg/m3 (18) 25.0
 
May 25, 2022, 10 p.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 9.0 μg/m3 (9) 4.1 μg/m3 (18) 25.0
 
May 25, 2022, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) N/A 8.0 μg/m3 (8) 3.7 μg/m3 (16) 28.0
 
May 25, 2022, 8 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 9.0 μg/m3 (9) 3.9 μg/m3 (17) 29.0
 
May 25, 2022, 8 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 9.0 μg/m3 (9) 3.9 μg/m3 (17) 29.0
 
May 25, 2022, 7 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 11.0 μg/m3 (11) 4.2 μg/m3 (18) 28.0
 
May 25, 2022, 7 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 11.0 μg/m3 (11) 4.2 μg/m3 (18) 28.0
 
May 25, 2022, 6 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) N/A 10.0 μg/m3 (10) 4.2 μg/m3 (18) 28.0
 
May 25, 2022, 6 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) N/A 10.0 μg/m3 (10) 4.2 μg/m3 (18) 28.0
 
May 25, 2022, 5 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) N/A 11.0 μg/m3 (11) 4.7 μg/m3 (20) 25.0
 
May 25, 2022, 5 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) N/A 11.0 μg/m3 (11) 4.7 μg/m3 (20) 25.0
 
May 25, 2022, 4 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 10.0 μg/m3 (10) 4.1 μg/m3 (18) 25.0
 
May 25, 2022, 3 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) N/A 7.0 μg/m3 (7) 3.5 μg/m3 (15) 26.0
 
May 25, 2022, 1 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 21.0 ppb (20) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 20.0
 
May 25, 2022, 9 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 25.0
 
May 25, 2022, 5 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 7.0 μg/m3 (7) 2.9 μg/m3 (13) 25.0
 
May 25, 2022, 4 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 9.0 μg/m3 (9) 3.3 μg/m3 (14) 25.0
 
May 25, 2022, 1 a.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 8.0 μg/m3 (8) 3.5 μg/m3 (15) 25.0
 
May 25, 2022, midnight 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 7.0 μg/m3 (7) 3.2 μg/m3 (14) 28.0
 
May 24, 2022, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 34.0 ppb (32) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (10) 32.0
 
May 24, 2022, 8 p.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 4.0 μg/m3 (4) 1.7 μg/m3 (8) 32.0
 
May 24, 2022, 7 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 6.0 μg/m3 (6) 1.9 μg/m3 (8) 31.0
 
May 24, 2022, 6 p.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (9) 30.0
 
May 24, 2022, 5 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (30) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 30.0
 
May 24, 2022, 4 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 3.0 μg/m3 (3) 1.3 μg/m3 (6) 28.0
 
May 24, 2022, 3 p.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (4) 27.0
 
May 24, 2022, 2 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (3) 26.0
 
May 24, 2022, 1 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (3) 25.0
 
May 24, 2022, noon 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (2) 27.0
 
May 24, 2022, 10 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (2) 30.0
 
May 24, 2022, 9 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 2.0 μg/m3 (2) 0.3 μg/m3 (2) 30.0
 
May 24, 2022, 8 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (2) 28.0
 
May 24, 2022, 6 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (4) 25.0
 
May 24, 2022, 5 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 4.0 μg/m3 (4) 1.1 μg/m3 (5) 25.0
 
May 24, 2022, 5 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 4.0 μg/m3 (4) 1.1 μg/m3 (5) 25.0
 
May 24, 2022, 4 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 4.0 μg/m3 (4) 1.1 μg/m3 (5) 25.0
 
May 24, 2022, 4 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 4.0 μg/m3 (4) 1.1 μg/m3 (5) 25.0
 
May 24, 2022, 3 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 24.0
 
May 24, 2022, 3 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 24.0
 
May 24, 2022, 2 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (6) 22.0
 
May 24, 2022, 2 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (6) 22.0
 
May 24, 2022, 1 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 7.0 μg/m3 (7) 2.6 μg/m3 (11) 22.0
 
May 24, 2022, 1 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 7.0 μg/m3 (7) 2.6 μg/m3 (11) 22.0
 
May 24, 2022, midnight 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 11.0 μg/m3 (11) 4.5 μg/m3 (19) 22.0
 
May 24, 2022, midnight 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 11.0 μg/m3 (11) 4.5 μg/m3 (19) 22.0
 
May 23, 2022, 11 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 14.0 μg/m3 (13) 5.8 μg/m3 (25) 25.0
 
May 23, 2022, 11 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 14.0 μg/m3 (13) 5.8 μg/m3 (25) 25.0
 
May 23, 2022, 8 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 25.0 μg/m3 (24) 10.2 μg/m3 (43) 43.0
 
May 23, 2022, 7 p.m. 4.4 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 22.0 μg/m3 (21) 10.1 μg/m3 (43) 43.0
 
May 23, 2022, 6 p.m. 2.7 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 16.0 μg/m3 (15) 8.9 μg/m3 (38) 38.0
 
May 23, 2022, 3 p.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 14.0 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
May 23, 2022, 2 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 16.0 μg/m3 (15) 7.8 μg/m3 (33) 33.0
 
May 23, 2022, 11 a.m. 5.7 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 19.0 μg/m3 (18) 8.6 μg/m3 (36) 36.0
 
May 23, 2022, 10 a.m. 6.8 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
May 23, 2022, 10 a.m. 6.8 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
May 23, 2022, 9 a.m. 6.5 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 23.0 μg/m3 (22) 9.2 μg/m3 (39) 39.0
 
May 23, 2022, 3 a.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 25.0 μg/m3 (24) 8.1 μg/m3 (34) 34.0
 
May 23, 2022, 2 a.m. 4.8 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 28.0 μg/m3 (26) 8.9 μg/m3 (38) 38.0
 
May 23, 2022, 1 a.m. 6.4 ppb (7) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 23.0 μg/m3 (22) 8.6 μg/m3 (36) 36.0
 
May 23, 2022, midnight 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) N/A 27.0 μg/m3 (25) 8.5 μg/m3 (36) 36.0
 
May 22, 2022, 11 p.m. 3.5 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 35.0 μg/m3 (33) 9.1 μg/m3 (38) 38.0
 
May 22, 2022, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A 29.0 μg/m3 (27) 11.3 μg/m3 (48) 48.0
 
May 22, 2022, 8 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 31.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
May 22, 2022, 7 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 33.0 μg/m3 (31) 12.5 μg/m3 (52) 52.0
 
May 22, 2022, 6 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 37.0 μg/m3 (35) 14.0 μg/m3 (55) 55.0
 
May 22, 2022, 5 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 30.0 μg/m3 (28) 12.8 μg/m3 (53) 53.0
 
May 22, 2022, 4 p.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 22.0 μg/m3 (21) 11.3 μg/m3 (48) 48.0
 
May 22, 2022, 3 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 18.0 μg/m3 (17) 10.5 μg/m3 (44) 44.0
 
May 22, 2022, 2 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 21.0 ppb (20) N/A 17.0 μg/m3 (16) 9.6 μg/m3 (40) 40.0
 
May 22, 2022, 1 p.m. 2.8 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
May 22, 2022, 1 p.m. 2.8 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
May 22, 2022, noon 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 16.0 μg/m3 (15) 9.4 μg/m3 (40) 40.0
 
May 22, 2022, 11 a.m. 3.2 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 18.0 μg/m3 (17) 9.4 μg/m3 (40) 40.0
 
May 22, 2022, 10 a.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 18.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
May 22, 2022, 9 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 20.0 μg/m3 (19) 10.3 μg/m3 (43) 43.0
 
May 22, 2022, 8 a.m. 3.2 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 19.0 μg/m3 (18) 9.4 μg/m3 (40) 40.0
 
May 22, 2022, 7 a.m. 7.3 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 11.0 ppb (11) N/A 19.0 μg/m3 (18) 9.8 μg/m3 (41) 41.0
 
May 22, 2022, 5 a.m. 4.6 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 19.0 μg/m3 (18) 7.9 μg/m3 (33) 33.0
 
May 22, 2022, 3 a.m. 12.9 ppb (13) 0.3 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 11.0 ppb (11) N/A 23.0 μg/m3 (22) 9.5 μg/m3 (40) 40.0
 
May 22, 2022, 2 a.m. 9.2 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A N/A 15.0 ppb (14) N/A 20.0 μg/m3 (19) 9.2 μg/m3 (39) 39.0
 
May 22, 2022, 1 a.m. 6.0 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 20.0 μg/m3 (19) 8.4 μg/m3 (36) 36.0
 
May 22, 2022, midnight 6.0 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 22.0 μg/m3 (21) 7.7 μg/m3 (33) 33.0
 
May 21, 2022, 11 p.m. 6.8 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 21.0 μg/m3 (20) 7.3 μg/m3 (31) 31.0
 
May 21, 2022, 10 p.m. 4.2 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 21.0 μg/m3 (20) 7.0 μg/m3 (30) 33.0
 
May 21, 2022, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A 27.0 μg/m3 (25) 11.8 μg/m3 (50) 50.0
 
May 21, 2022, 8 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 24.0 μg/m3 (23) 13.0 μg/m3 (53) 53.0
 
May 21, 2022, 7 p.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 23.0 μg/m3 (22) 13.1 μg/m3 (54) 54.0
 
May 21, 2022, 6 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 23.0 μg/m3 (22) 12.9 μg/m3 (53) 53.0
 
May 21, 2022, 5 p.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 46.0 ppb (43) N/A 20.0 μg/m3 (19) 12.3 μg/m3 (52) 52.0
 
May 21, 2022, 4 p.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 23.0 μg/m3 (22) 13.3 μg/m3 (54) 54.0
 
May 21, 2022, 3 p.m. 3.2 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 46.0 ppb (43) N/A 23.0 μg/m3 (22) 14.6 μg/m3 (57) 57.0
 
May 21, 2022, 2 p.m. 4.0 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 44.0 ppb (41) N/A 23.0 μg/m3 (22) 14.5 μg/m3 (57) 57.0
 
May 21, 2022, 1 p.m. 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 21.0 μg/m3 (20) 14.0 μg/m3 (55) 55.0
 
May 21, 2022, 1 p.m. 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 21.0 μg/m3 (20) 14.0 μg/m3 (55) 55.0
 
May 21, 2022, noon 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 20.0 μg/m3 (19) 13.7 μg/m3 (55) 55.0
 
May 21, 2022, 10 a.m. 5.4 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 22.0 ppb (21) N/A 20.0 μg/m3 (19) 14.4 μg/m3 (56) 56.0
 
May 21, 2022, 9 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 21.0 μg/m3 (20) 13.7 μg/m3 (55) 55.0
 
May 21, 2022, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 21.0 μg/m3 (20) 13.4 μg/m3 (54) 54.0
 
May 21, 2022, 4 a.m. 4.8 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 20.0 μg/m3 (19) 12.2 μg/m3 (52) 52.0
 
May 21, 2022, 3 a.m. 5.8 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 20.0 μg/m3 (19) 12.1 μg/m3 (51) 51.0
 
May 21, 2022, 2 a.m. 7.4 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 20.0 μg/m3 (19) 12.4 μg/m3 (52) 52.0
 
May 21, 2022, 1 a.m. 7.4 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 24.0 μg/m3 (23) 12.8 μg/m3 (53) 53.0
 
May 21, 2022, midnight 6.7 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
May 20, 2022, 11 p.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 36.0 μg/m3 (34) 13.1 μg/m3 (54) 54.0
 
May 20, 2022, 10 p.m. 5.9 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 43.0 μg/m3 (40) 14.2 μg/m3 (56) 56.0
 
May 20, 2022, 9 p.m. 2.6 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 57.0 ppb (58) N/A 28.0 μg/m3 (26) 12.7 μg/m3 (53) 58.0
 
May 20, 2022, 7 p.m. 2.6 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 55.0 ppb (51) N/A 29.0 μg/m3 (27) 14.1 μg/m3 (56) 56.0
 
May 20, 2022, 6 p.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 29.0 μg/m3 (27) 14.1 μg/m3 (56) 56.0
 
May 20, 2022, 5 p.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 58.0 ppb (61) N/A 28.0 μg/m3 (26) 15.0 μg/m3 (58) 61.0
 
May 20, 2022, 4 p.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 28.0 μg/m3 (26) 15.4 μg/m3 (58) 58.0
 
May 20, 2022, 3 p.m. 3.2 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 28.0 μg/m3 (26) 15.3 μg/m3 (58) 58.0
 
May 20, 2022, 2 p.m. 3.7 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 29.0 μg/m3 (27) 16.8 μg/m3 (61) 61.0
 
May 20, 2022, 1 p.m. 5.0 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 42.0 ppb (39) N/A 29.0 μg/m3 (27) 18.8 μg/m3 (66) 66.0
 
May 20, 2022, 11 a.m. 9.4 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 30.0 μg/m3 (28) 21.3 μg/m3 (71) 71.0
 
May 20, 2022, 10 a.m. 8.7 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 33.0 μg/m3 (31) 21.7 μg/m3 (72) 72.0
 
May 20, 2022, 9 a.m. 6.6 ppb (7) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 30.0 μg/m3 (28) 21.4 μg/m3 (71) 71.0
 
May 20, 2022, 8 a.m. 6.4 ppb (7) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 30.0 μg/m3 (28) 21.3 μg/m3 (71) 71.0
 
May 20, 2022, 7 a.m. 7.1 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 30.0 μg/m3 (28) 20.2 μg/m3 (69) 69.0
 
May 20, 2022, 6 a.m. 5.2 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 26.0 μg/m3 (25) 18.0 μg/m3 (64) 64.0
 
May 20, 2022, 5 a.m. 6.5 ppb (7) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 26.0 μg/m3 (25) 17.3 μg/m3 (62) 62.0
 
May 20, 2022, 4 a.m. 8.8 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 28.0 μg/m3 (26) 18.3 μg/m3 (65) 65.0
 
May 20, 2022, 3 a.m. 10.6 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 28.0 μg/m3 (26) 17.7 μg/m3 (63) 63.0
 
May 20, 2022, 2 a.m. 12.1 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 28.0 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
May 20, 2022, 1 a.m. 9.8 ppb (10) 0.1 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 28.0 μg/m3 (26) 16.2 μg/m3 (60) 60.0
 
May 20, 2022, 1 a.m. 9.8 ppb (10) 0.1 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 28.0 μg/m3 (26) 16.2 μg/m3 (60) 60.0
 
May 20, 2022, midnight 7.6 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 44.0 ppb (41) N/A 28.0 μg/m3 (26) 15.7 μg/m3 (59) 59.0
 
May 20, 2022, midnight 7.6 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 44.0 ppb (41) N/A 28.0 μg/m3 (26) 15.7 μg/m3 (59) 59.0
 
May 19, 2022, 11 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 29.0 μg/m3 (27) 15.5 μg/m3 (59) 59.0
 
May 19, 2022, 10 p.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 29.0 μg/m3 (27) 15.3 μg/m3 (58) 58.0
 
May 19, 2022, 9 p.m. 2.6 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 56.0 ppb (55) N/A 31.0 μg/m3 (29) 14.9 μg/m3 (57) 57.0
 
May 19, 2022, 8 p.m. 2.6 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 57.0 ppb (58) N/A 31.0 μg/m3 (29) 15.3 μg/m3 (58) 58.0
 
May 19, 2022, 7 p.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 30.0 μg/m3 (28) 14.5 μg/m3 (57) 57.0
 
May 19, 2022, 7 p.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 30.0 μg/m3 (28) 14.5 μg/m3 (57) 57.0
 
May 19, 2022, 4 p.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 60.0 ppb (68) N/A 27.0 μg/m3 (25) 15.4 μg/m3 (58) 68.0
 
May 19, 2022, 2 p.m. 5.5 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A N/A 58.0
 
May 19, 2022, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 28.0 μg/m3 (26) 13.4 μg/m3 (54) 54.0
 
May 19, 2022, 5 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 23.0 μg/m3 (22) 11.6 μg/m3 (49) 49.0
 
May 19, 2022, 4 a.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 21.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
May 19, 2022, 3 a.m. 4.6 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 21.0 μg/m3 (20) 10.8 μg/m3 (46) 46.0
 
May 19, 2022, 2 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 22.0 μg/m3 (21) 10.8 μg/m3 (46) 47.0
 
May 19, 2022, 1 a.m. 5.7 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 23.0 μg/m3 (22) 10.7 μg/m3 (45) 49.0
 
May 18, 2022, 11 p.m. 4.6 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 62.0 ppb (74) N/A 25.0 μg/m3 (24) 8.3 μg/m3 (35) 74.0
 
May 18, 2022, 10 p.m. 4.8 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 66.0 ppb (87) N/A 26.0 μg/m3 (25) 8.0 μg/m3 (34) 87.0
 
May 18, 2022, 9 p.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 74.0 ppb (103) N/A 26.0 μg/m3 (25) 8.2 μg/m3 (35) 103.0
 
May 18, 2022, 8 p.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 71.0 ppb (101) N/A 24.0 μg/m3 (23) 7.6 μg/m3 (32) 101.0
 
May 18, 2022, 7 p.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 66.0 ppb (87) N/A 25.0 μg/m3 (24) 7.4 μg/m3 (31) 87.0
 
May 18, 2022, 5 p.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 61.0 ppb (71) N/A 22.0 μg/m3 (21) 6.6 μg/m3 (28) 71.0
 
May 18, 2022, 4 p.m. 3.9 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 65.0 ppb (84) N/A 24.0 μg/m3 (23) 7.3 μg/m3 (31) 84.0
 
May 18, 2022, 4 p.m. 3.9 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 65.0 ppb (84) N/A 24.0 μg/m3 (23) 7.3 μg/m3 (31) 84.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 60.0 ppb (68) N/A 23.0 μg/m3 (22) 7.1 μg/m3 (30) 68.0
 
May 18, 2022, 3 p.m. 16.6 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 60.0 ppb (68) N/A 23.0 μg/m3 (22) 7.1 μg/m3 (30) 68.0
 
May 18, 2022, 2 p.m. 16.6 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 53.0 ppb (50) N/A 21.0 μg/m3 (20) 6.9 μg/m3 (29) 50.0
 
May 18, 2022, 2 p.m. 16.6 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 53.0 ppb (50) N/A 21.0 μg/m3 (20) 6.9 μg/m3 (29) 50.0