AQSQID: 450190046

Site Name: Cape Romain

Location: Awendaw (Bulls Is Rd), SC

Reporting: True, Located: True

Current AQI: 27.0

Awendaw (Bulls Is Rd) SC, US: 32.941002, -79.656998

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 24, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 5.2 μg/m3 (22) 25.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.4 μg/m3 (14) 25.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 4.9 μg/m3 (20) 25.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.8 μg/m3 (12) 25.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.7 μg/m3 (15) 26.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
Jan. 23, 2020, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 10.1 μg/m3 (42) 42.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 10.7 μg/m3 (45) 45.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.4 μg/m3 (18) 23.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 23, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 15.1 μg/m3 (57) 57.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 27.3 μg/m3 (83) 83.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 10.4 μg/m3 (43) 43.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) N/A N/A 9.7 μg/m3 (40) 40.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A N/A 7.5 μg/m3 (31) 31.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.1 μg/m3 (21) 27.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 2.1 μg/m3 (9) 26.0
 
Jan. 22, 2020, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.8 μg/m3 (16) 27.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.2 μg/m3 (22) 27.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.7 μg/m3 (11) 28.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.0 μg/m3 (4) 28.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 2.5 μg/m3 (10) 29.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 1.5 μg/m3 (6) 30.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 3.4 μg/m3 (14) 31.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 4.1 μg/m3 (17) 31.0
 
Jan. 22, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.8 μg/m3 (16) 30.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 4.6 μg/m3 (19) 30.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 3.4 μg/m3 (14) 31.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.7 μg/m3 (7) 32.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 2.6 μg/m3 (11) 32.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 2.1 μg/m3 (9) 32.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 3.0 μg/m3 (12) 31.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 4.5 μg/m3 (19) 29.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.7 μg/m3 (15) 28.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 0.3 μg/m3 (1) 26.0
 
Jan. 21, 2020, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 2.5 μg/m3 (10) 18.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 4.4 μg/m3 (18) 18.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 7.9 μg/m3 (33) 33.0
 
Jan. 21, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 4.6 μg/m3 (19) 21.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.9 μg/m3 (16) 27.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.4 μg/m3 (10) 27.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.6 μg/m3 (11) 27.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.0 μg/m3 (4) 26.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.7 μg/m3 (7) 25.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 3.3 μg/m3 (14) 24.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.3 μg/m3 (10) 23.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.6 μg/m3 (11) 22.0
 
Jan. 20, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 3.9 μg/m3 (16) 22.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.2 μg/m3 (18) 23.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.5 μg/m3 (19) 23.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.2 μg/m3 (18) 23.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.5 μg/m3 (10) 23.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 3.5 μg/m3 (15) 22.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 3.6 μg/m3 (15) 22.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 4.7 μg/m3 (20) 22.0
 
Jan. 20, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 5.5 μg/m3 (23) 25.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 4.2 μg/m3 (18) 27.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.8 μg/m3 (16) 28.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.5 μg/m3 (6) 29.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 3.3 μg/m3 (14) 32.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.2 μg/m3 (5) 25.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.7 μg/m3 (20) 23.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 5.6 μg/m3 (23) 25.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.3 μg/m3 (22) 27.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 5.5 μg/m3 (23) 29.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.7 μg/m3 (7) 31.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.6 μg/m3 (11) 30.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.2 μg/m3 (13) 27.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.4 μg/m3 (10) 27.0
 
Jan. 19, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 2.6 μg/m3 (11) 29.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.3 μg/m3 (5) 28.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.7 μg/m3 (7) 28.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.4 μg/m3 (10) 23.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 2.7 μg/m3 (11) 22.0
 
Jan. 18, 2020, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.2 μg/m3 (13) 20.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.3 μg/m3 (5) 21.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.8 μg/m3 (8) 21.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 2.2 μg/m3 (9) 20.0
 
Jan. 18, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.1 μg/m3 (13) 20.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 2.4 μg/m3 (10) 20.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 4.3 μg/m3 (18) 20.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.2 μg/m3 (9) 23.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 18, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 4.9 μg/m3 (20) 28.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 3.1 μg/m3 (13) 31.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 4.2 μg/m3 (18) 30.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.6 μg/m3 (11) 31.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.2 μg/m3 (5) 29.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.4 μg/m3 (14) 28.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
Jan. 17, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 4.5 μg/m3 (19) 25.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 4.2 μg/m3 (18) 26.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.5 μg/m3 (6) 27.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.7 μg/m3 (15) 26.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.3 μg/m3 (14) 27.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.8 μg/m3 (16) 28.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.6 μg/m3 (11) 30.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.6 μg/m3 (11) 31.0
 
Jan. 17, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 2.2 μg/m3 (9) 32.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 5.6 μg/m3 (23) 32.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 6.3 μg/m3 (26) 32.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.2 μg/m3 (22) 27.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.9 μg/m3 (12) 25.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.1 μg/m3 (9) 23.0