ID: 895

AQSQID: 530330080

Site Name: Seattle-Beacon Hill

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

Updated: June 19, 2021, 8:57 p.m.

Location: Seattle (N Beacon Hill), WA

Reporting: True, Located: True

Current AQI: 27.0

Seattle (N Beacon Hill) WA, US: 47.568236, -122.308628

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 19, 2021, 7 p.m. N/A 2.6 ppb (3) 11.0 ppb (11) 7.0 ppb (7) N/A 1.0 ppb (2) 29.0 ppb (27) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 27.0
 
June 19, 2021, 6 p.m. N/A 7.7 ppb (8) 21.3 ppb (21) 12.0 ppb (12) N/A 1.0 ppb (2) 20.0 ppb (19) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 21.0
 
June 19, 2021, 5 p.m. N/A 8.9 ppb (9) 23.3 ppb (22) 12.0 ppb (12) N/A 1.0 ppb (2) 17.0 ppb (16) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 22.0
 
June 19, 2021, 4 p.m. N/A 3.8 ppb (4) 11.4 ppb (11) 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (18) 0.13 ppb (2) N/A 0.0 μg/m3 (0) 18.0
 
June 19, 2021, 3 p.m. N/A 0.5 ppb (1) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 21.0
 
June 19, 2021, 2 p.m. N/A 0.3 ppb (1) 1.7 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
June 19, 2021, 1 p.m. N/A 0.2 ppb (1) 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) 0.1 ppb (2) N/A 4.0 μg/m3 (17) 22.0
 
June 19, 2021, noon N/A 0.1 ppb (1) 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) 0.09 ppb (2) N/A 2.0 μg/m3 (9) 22.0
 
June 19, 2021, 11 a.m. N/A 0.1 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) 0.09 ppb (2) N/A 2.0 μg/m3 (9) 22.0
 
June 19, 2021, 10 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) 0.09 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
June 19, 2021, 9 a.m. N/A 0.1 ppb (1) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.09 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 19, 2021, 8 a.m. N/A 0.1 ppb (1) 2.2 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.11 ppb (2) N/A 5.0 μg/m3 (21) 24.0
 
June 19, 2021, 7 a.m. N/A 0.1 ppb (1) 2.2 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 24.0
 
June 19, 2021, 6 a.m. N/A 0.1 ppb (1) 2.5 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.11 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
June 19, 2021, 5 a.m. N/A 0.2 ppb (1) 2.6 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.11 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 19, 2021, 4 a.m. N/A 0.1 ppb (1) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 25.0
 
June 19, 2021, 3 a.m. N/A 0.3 ppb (1) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.15 ppb (2) N/A 1.0 μg/m3 (5) 27.0
 
June 19, 2021, 2 a.m. N/A 0.3 ppb (1) 2.8 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 31.0
 
June 19, 2021, 1 a.m. N/A 0.4 ppb (1) 3.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 33.0
 
June 19, 2021, midnight N/A 1.2 ppb (2) 7.4 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (34) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 34.0
 
June 18, 2021, 11 p.m. N/A 2.0 ppb (2) 11.0 ppb (11) 8.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 31.0
 
June 18, 2021, 10 p.m. N/A 1.2 ppb (2) 6.9 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 35.0
 
June 18, 2021, 9 p.m. N/A 1.4 ppb (2) 6.9 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) N/A 0.0 μg/m3 (0) 33.0
 
June 18, 2021, 8 p.m. N/A 1.9 ppb (2) 8.5 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) N/A 0.0 μg/m3 (0) 30.0
 
June 18, 2021, 7 p.m. N/A 2.8 ppb (3) 12.3 ppb (12) 10.0 ppb (10) N/A 1.0 ppb (2) 29.0 ppb (27) 0.13 ppb (2) N/A 15.0 μg/m3 (58) 58.0
 
June 18, 2021, 6 p.m. N/A 1.7 ppb (2) 7.6 ppb (8) 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) N/A -1.0 μg/m3 (0) 28.0
 
June 18, 2021, 5 p.m. N/A 0.8 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) N/A 1.0 μg/m3 (5) 28.0
 
June 18, 2021, 4 p.m. N/A 0.8 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
June 18, 2021, 3 p.m. N/A 0.6 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
June 18, 2021, 2 p.m. N/A 0.4 ppb (1) 2.2 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 28.0
 
June 18, 2021, 1 p.m. N/A 0.2 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 1.0 μg/m3 (5) 27.0
 
June 18, 2021, noon N/A 0.1 ppb (1) 1.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.09 ppb (2) N/A 1.0 μg/m3 (5) 28.0
 
June 18, 2021, 11 a.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.09 ppb (2) N/A 2.0 μg/m3 (9) 27.0
 
June 18, 2021, 10 a.m. N/A 0.1 ppb (1) 1.6 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.09 ppb (2) N/A 2.0 μg/m3 (9) 26.0
 
June 18, 2021, 9 a.m. N/A 0.1 ppb (1) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 25.0
 
June 18, 2021, 8 a.m. N/A 0.1 ppb (1) 2.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
June 18, 2021, 7 a.m. N/A 0.1 ppb (1) 2.4 ppb (3) 3.0 ppb (3) N/A N/A 27.0 ppb (25) 0.11 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
June 18, 2021, 6 a.m. N/A 0.1 ppb (1) 2.7 ppb (3) 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
June 18, 2021, 5 a.m. N/A 0.1 ppb (1) 6.9 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
June 18, 2021, 4 a.m. N/A 0.2 ppb (1) 13.4 ppb (13) 14.0 ppb (14) N/A 0.0 ppb (0) 21.0 ppb (20) 0.15 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
June 18, 2021, 3 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 18.0 ppb (17) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 18.0
 
June 18, 2021, 2 a.m. N/A 1.0 ppb (1) 10.5 ppb (10) 10.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 30.0
 
June 18, 2021, 1 a.m. N/A 0.4 ppb (1) 3.6 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (40) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 40.0
 
June 18, 2021, midnight N/A 0.5 ppb (1) 4.3 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 41.0
 
June 17, 2021, 11 p.m. N/A 0.8 ppb (1) 6.1 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (41) 0.11 ppb (2) N/A 0.0 μg/m3 (0) 41.0
 
June 17, 2021, 10 p.m. N/A 1.0 ppb (1) 6.5 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 1.0 μg/m3 (5) 38.0
 
June 17, 2021, 9 p.m. N/A 1.8 ppb (2) 11.6 ppb (11) 8.0 ppb (8) N/A 0.0 ppb (0) 43.0 ppb (40) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 40.0
 
June 17, 2021, 8 p.m. N/A 1.9 ppb (2) 12.4 ppb (12) 9.0 ppb (9) N/A 0.0 ppb (0) 44.0 ppb (41) 0.12 ppb (2) N/A 2.0 μg/m3 (9) 41.0
 
June 17, 2021, 7 p.m. N/A 2.6 ppb (3) 12.8 ppb (13) 9.0 ppb (9) N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 34.0
 
June 17, 2021, 6 p.m. N/A 4.3 ppb (5) 17.0 ppb (17) 12.0 ppb (12) N/A 1.0 ppb (2) 27.0 ppb (25) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
June 17, 2021, 5 p.m. N/A 4.8 ppb (5) 15.4 ppb (15) 10.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (23) 0.12 ppb (2) N/A 3.0 μg/m3 (13) 23.0
 
June 17, 2021, 4 p.m. N/A 12.9 ppb (13) 28.0 ppb (27) 15.0 ppb (15) N/A 1.0 ppb (2) 17.0 ppb (16) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 27.0
 
June 17, 2021, 3 p.m. N/A 20.4 ppb (20) 43.9 ppb (42) 18.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 42.0
 
June 17, 2021, 2 p.m. N/A 1.4 ppb (2) 7.1 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) N/A 1.0 μg/m3 (5) 22.0
 
June 17, 2021, 1 p.m. N/A 1.3 ppb (2) 9.3 ppb (9) 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.19 ppb (3) N/A 2.0 μg/m3 (9) 17.0
 
June 17, 2021, noon N/A 0.3 ppb (1) 6.1 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) N/A 2.0 μg/m3 (9) 18.0
 
June 17, 2021, 11 a.m. N/A 0.1 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.12 ppb (2) N/A 3.0 μg/m3 (13) 24.0
 
June 17, 2021, 10 a.m. N/A 0.1 ppb (1) 3.4 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
June 17, 2021, 9 a.m. N/A 0.1 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
June 17, 2021, 8 a.m. N/A 0.1 ppb (1) 5.1 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 29.0
 
June 17, 2021, 7 a.m. N/A 0.1 ppb (1) 4.6 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.12 ppb (2) N/A 2.0 μg/m3 (9) 31.0
 
June 17, 2021, 6 a.m. N/A 0.1 ppb (1) 3.7 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) N/A 2.0 μg/m3 (9) 33.0
 
June 17, 2021, 5 a.m. N/A 0.1 ppb (1) 4.7 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 33.0
 
June 17, 2021, 4 a.m. N/A 0.1 ppb (1) 4.4 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 35.0
 
June 17, 2021, 3 a.m. N/A 0.1 ppb (1) 3.8 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 36.0
 
June 17, 2021, 2 a.m. N/A 0.4 ppb (1) 3.9 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 36.0
 
June 17, 2021, 1 a.m. N/A 0.6 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 35.0
 
June 17, 2021, midnight N/A 0.7 ppb (1) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 35.0
 
June 16, 2021, 11 p.m. N/A 1.0 ppb (1) 5.5 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 36.0
 
June 16, 2021, 10 p.m. N/A 2.3 ppb (3) 10.2 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) N/A -1.0 μg/m3 (0) 34.0
 
June 16, 2021, 9 p.m. N/A 1.2 ppb (2) 6.4 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) N/A 1.0 μg/m3 (5) 36.0
 
June 16, 2021, 8 p.m. N/A 1.4 ppb (2) 7.1 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (35) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 35.0
 
June 16, 2021, 6 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 24.0
 
June 16, 2021, 5 p.m. N/A 10.6 ppb (10) 24.8 ppb (24) 14.0 ppb (14) N/A 1.0 ppb (2) 20.0 ppb (19) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 24.0
 
June 16, 2021, 4 p.m. N/A 20.4 ppb (20) 43.9 ppb (42) 22.0 ppb (21) N/A 1.0 ppb (2) 11.0 ppb (11) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 42.0
 
June 16, 2021, 3 p.m. N/A 13.8 ppb (14) 34.1 ppb (33) 17.0 ppb (17) N/A 1.0 ppb (2) 15.0 ppb (14) 0.19 ppb (3) N/A 2.0 μg/m3 (9) 33.0
 
June 16, 2021, 2 p.m. N/A 6.1 ppb (6) 20.6 ppb (20) 14.0 ppb (14) N/A 1.0 ppb (2) 14.0 ppb (13) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 20.0
 
June 16, 2021, 1 p.m. N/A 1.9 ppb (2) 10.6 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) N/A 2.0 μg/m3 (9) 13.0
 
June 16, 2021, noon N/A 1.8 ppb (2) 15.7 ppb (15) 15.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (10) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 15.0
 
June 16, 2021, 11 a.m. N/A 1.4 ppb (2) 17.3 ppb (17) 17.0 ppb (17) N/A 0.0 ppb (0) 8.0 ppb (8) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
June 16, 2021, 10 a.m. N/A 0.6 ppb (1) 13.4 ppb (13) 13.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (13) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 16, 2021, 9 a.m. N/A 0.3 ppb (1) 9.8 ppb (10) 11.0 ppb (11) N/A 0.0 ppb (0) 16.0 ppb (15) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
June 16, 2021, 8 a.m. N/A 0.3 ppb (1) 6.9 ppb (7) 8.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (19) 0.12 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 16, 2021, 7 a.m. N/A 0.1 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
June 16, 2021, 6 a.m. N/A 0.1 ppb (1) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
June 16, 2021, 5 a.m. N/A 0.1 ppb (1) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
June 16, 2021, 4 a.m. N/A 0.1 ppb (1) 3.1 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
June 16, 2021, 3 a.m. N/A 0.1 ppb (1) 1.5 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 31.0
 
June 16, 2021, 2 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) N/A 1.0 μg/m3 (5) 32.0
 
June 16, 2021, 1 a.m. N/A 0.3 ppb (1) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) N/A 1.0 μg/m3 (5) 30.0
 
June 16, 2021, midnight N/A 0.4 ppb (1) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.11 ppb (2) N/A 2.0 μg/m3 (9) 28.0
 
June 15, 2021, 11 p.m. N/A 0.7 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.11 ppb (2) N/A 1.0 μg/m3 (5) 26.0
 
June 15, 2021, 10 p.m. N/A 0.8 ppb (1) 3.4 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) N/A 1.0 μg/m3 (5) 27.0
 
June 15, 2021, 9 p.m. N/A 0.5 ppb (1) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 28.0
 
June 15, 2021, 8 p.m. N/A 0.8 ppb (1) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 1.0 μg/m3 (5) 25.0
 
June 15, 2021, 7 p.m. N/A 0.8 ppb (1) 3.3 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 1.0 μg/m3 (5) 27.0
 
June 15, 2021, 6 p.m. N/A 0.4 ppb (1) 1.7 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 28.0
 
June 15, 2021, 5 p.m. N/A 0.7 ppb (1) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 26.0
 
June 15, 2021, 4 p.m. N/A 0.7 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.11 ppb (2) N/A 0.0 μg/m3 (0) 26.0
 
June 15, 2021, 3 p.m. N/A 0.6 ppb (1) 3.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.11 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
June 15, 2021, 2 p.m. N/A 2.7 ppb (3) 12.4 ppb (12) 9.0 ppb (9) N/A 1.0 ppb (2) 19.0 ppb (18) 0.15 ppb (2) N/A 1.0 μg/m3 (5) 18.0
 
June 15, 2021, 1 p.m. N/A 1.8 ppb (2) 12.8 ppb (13) 12.0 ppb (12) N/A 0.0 ppb (0) 15.0 ppb (14) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
June 15, 2021, noon N/A 0.5 ppb (1) 9.4 ppb (9) 10.0 ppb (10) N/A 0.0 ppb (0) 17.0 ppb (16) 0.13 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 15, 2021, 11 a.m. N/A 0.3 ppb (1) 5.6 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) 0.11 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 15, 2021, 10 a.m. N/A 0.2 ppb (1) 3.9 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.11 ppb (2) N/A 2.0 μg/m3 (9) 22.0
 
June 15, 2021, 9 a.m. N/A 0.2 ppb (1) 5.1 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) 0.11 ppb (2) N/A 1.0 μg/m3 (5) 20.0
 
June 15, 2021, 8 a.m. N/A 0.2 ppb (1) 7.7 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.14 ppb (2) N/A 2.0 μg/m3 (9) 18.0
 
June 15, 2021, 7 a.m. N/A 0.3 ppb (1) 6.5 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) 0.13 ppb (2) N/A 1.0 μg/m3 (5) 20.0
 
June 15, 2021, 6 a.m. N/A 0.2 ppb (1) 5.7 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 22.0
 
June 15, 2021, 5 a.m. N/A 0.4 ppb (1) 6.5 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (21) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
June 15, 2021, 4 a.m. N/A 0.7 ppb (1) 9.7 ppb (10) 10.0 ppb (10) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
June 15, 2021, 3 a.m. N/A 0.8 ppb (1) 12.3 ppb (12) 13.0 ppb (13) N/A 0.0 ppb (0) 16.0 ppb (15) 0.22 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
June 15, 2021, 2 a.m. N/A 4.2 ppb (4) 17.3 ppb (17) 9.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) N/A 3.0 μg/m3 (13) 19.0
 
June 15, 2021, 1 a.m. N/A 16.1 ppb (16) 113.4 ppb (104) 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) N/A 1.0 μg/m3 (5) 104.0
 
June 15, 2021, midnight N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) N/A 3.0 μg/m3 (13) 23.0
 
June 14, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) N/A 1.0 μg/m3 (5) 22.0
 
June 14, 2021, 10 p.m. N/A 0.5 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) N/A -2.0 μg/m3 (0) 25.0
 
June 14, 2021, 9 p.m. N/A 0.8 ppb (1) 4.1 ppb (4) N/A N/A N/A 28.0 ppb (26) 0.13 ppb (2) N/A 0.0 μg/m3 (0) 26.0
 
June 14, 2021, 8 p.m. N/A 1.5 ppb (2) 7.5 ppb (8) 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 24.0
 
June 14, 2021, 7 p.m. N/A 2.1 ppb (2) 10.9 ppb (11) 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 4.0 μg/m3 (17) 20.0
 
June 14, 2021, 6 p.m. N/A 2.2 ppb (3) 12.6 ppb (12) 11.0 ppb (11) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
June 14, 2021, 5 p.m. N/A 1.8 ppb (2) 9.6 ppb (10) 8.0 ppb (8) N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
June 14, 2021, 4 p.m. N/A 1.5 ppb (2) 8.7 ppb (9) 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) 0.13 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 14, 2021, 3 p.m. N/A 2.3 ppb (3) 14.1 ppb (14) 12.0 ppb (12) N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) N/A 1.0 μg/m3 (5) 16.0
 
June 14, 2021, 2 p.m. N/A 0.7 ppb (1) 7.5 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.14 ppb (2) N/A 2.0 μg/m3 (9) 17.0
 
June 14, 2021, 1 p.m. N/A 0.3 ppb (1) 4.7 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (21) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
June 14, 2021, noon N/A 0.2 ppb (1) 2.6 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 22.0
 
June 14, 2021, 11 a.m. N/A 0.3 ppb (1) 3.9 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 17.0
 
June 14, 2021, 10 a.m. N/A 0.4 ppb (1) 4.2 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) 0.12 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 14, 2021, 9 a.m. N/A 0.4 ppb (1) 5.7 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
June 14, 2021, 8 a.m. N/A 0.8 ppb (1) 13.5 ppb (13) 14.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (9) 0.21 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
June 14, 2021, 7 a.m. N/A 0.4 ppb (1) 10.9 ppb (11) 12.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 14, 2021, 6 a.m. N/A 0.3 ppb (1) 9.3 ppb (9) 10.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 14, 2021, 5 a.m. N/A 0.3 ppb (1) 12.7 ppb (12) 14.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (11) 0.24 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 14, 2021, 4 a.m. N/A 0.2 ppb (1) 6.6 ppb (7) 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 14, 2021, 3 a.m. N/A 0.3 ppb (1) 7.7 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 19.0
 
June 14, 2021, 2 a.m. N/A 0.4 ppb (1) 7.9 ppb (8) 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) 0.18 ppb (3) N/A 1.0 μg/m3 (5) 20.0
 
June 14, 2021, 1 a.m. N/A 0.9 ppb (1) 11.1 ppb (11) 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 17.0
 
June 14, 2021, midnight N/A 1.2 ppb (2) 9.7 ppb (10) 10.0 ppb (10) N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
June 13, 2021, 11 p.m. N/A 6.3 ppb (6) 26.3 ppb (25) 21.0 ppb (20) N/A 1.0 ppb (2) 12.0 ppb (12) 0.18 ppb (3) N/A 4.0 μg/m3 (17) 25.0
 
June 13, 2021, 10 p.m. N/A 4.2 ppb (4) 26.6 ppb (26) 24.0 ppb (23) N/A 1.0 ppb (2) 13.0 ppb (13) 0.16 ppb (3) N/A 2.0 μg/m3 (9) 26.0
 
June 13, 2021, 9 p.m. N/A 3.6 ppb (4) 20.4 ppb (20) 17.0 ppb (17) N/A 0.0 ppb (0) 19.0 ppb (18) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 20.0
 
June 13, 2021, 8 p.m. N/A 2.5 ppb (3) 13.0 ppb (13) 11.0 ppb (11) N/A 1.0 ppb (2) 26.0 ppb (25) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 25.0
 
June 13, 2021, 7 p.m. N/A 5.5 ppb (6) 20.2 ppb (20) 14.0 ppb (14) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) N/A 1.0 μg/m3 (5) 22.0
 
June 13, 2021, 6 p.m. N/A 3.6 ppb (4) 15.4 ppb (15) 12.0 ppb (12) N/A 1.0 ppb (2) 23.0 ppb (22) 0.15 ppb (2) N/A 1.0 μg/m3 (5) 22.0
 
June 13, 2021, 5 p.m. N/A 0.4 ppb (1) 2.9 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) N/A -1.0 μg/m3 (0) 28.0
 
June 13, 2021, 4 p.m. N/A 0.3 ppb (1) 2.7 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.11 ppb (2) N/A -2.0 μg/m3 (0) 29.0
 
June 13, 2021, 3 p.m. N/A 0.3 ppb (1) 2.4 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
June 13, 2021, 2 p.m. N/A 0.2 ppb (1) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
June 13, 2021, 1 p.m. N/A 0.1 ppb (1) 1.5 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
June 13, 2021, noon N/A 0.1 ppb (1) 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) N/A 5.0 μg/m3 (21) 24.0
 
June 13, 2021, 11 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 13, 2021, 10 a.m. N/A 0.1 ppb (1) 2.5 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
June 13, 2021, 9 a.m. N/A 0.1 ppb (1) 4.8 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.19 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 13, 2021, 8 a.m. N/A 0.2 ppb (1) 8.4 ppb (8) 9.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (19) 0.21 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 13, 2021, 7 a.m. N/A 0.3 ppb (1) 9.4 ppb (9) 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 13, 2021, 6 a.m. N/A 0.4 ppb (1) 16.0 ppb (16) 17.0 ppb (17) N/A 0.0 ppb (0) 15.0 ppb (14) 0.23 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 13, 2021, 5 a.m. N/A 0.3 ppb (1) 15.6 ppb (15) 17.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (16) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 13, 2021, 4 a.m. N/A 1.9 ppb (2) 29.0 ppb (28) 28.0 ppb (27) N/A 1.0 ppb (2) 13.0 ppb (13) 0.16 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 13, 2021, 3 a.m. N/A 4.1 ppb (4) 37.8 ppb (36) 36.0 ppb (34) N/A 1.0 ppb (2) 9.0 ppb (9) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 36.0
 
June 13, 2021, 2 a.m. N/A 0.9 ppb (1) 19.4 ppb (19) 20.0 ppb (19) N/A 0.0 ppb (0) 24.0 ppb (23) 0.21 ppb (3) N/A 4.0 μg/m3 (17) 23.0
 
June 13, 2021, 1 a.m. N/A 0.4 ppb (1) 7.1 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 37.0 ppb (35) 0.18 ppb (3) N/A 5.0 μg/m3 (21) 35.0
 
June 13, 2021, midnight N/A 0.4 ppb (1) 5.9 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (38) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 38.0
 
June 12, 2021, 11 p.m. N/A 0.7 ppb (1) 5.9 ppb (6) 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 36.0
 
June 12, 2021, 10 p.m. N/A 1.5 ppb (2) 9.3 ppb (9) 7.0 ppb (7) N/A 1.0 ppb (2) 39.0 ppb (37) 0.13 ppb (2) N/A 2.0 μg/m3 (9) 37.0
 
June 12, 2021, 9 p.m. N/A 1.7 ppb (2) 9.4 ppb (9) 7.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) N/A 1.0 μg/m3 (5) 36.0
 
June 12, 2021, 8 p.m. N/A 1.8 ppb (2) 8.6 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) N/A 2.0 μg/m3 (9) 34.0
 
June 12, 2021, 7 p.m. N/A 3.4 ppb (4) 14.1 ppb (14) 10.0 ppb (10) N/A 1.0 ppb (2) 28.0 ppb (26) 0.17 ppb (3) N/A 3.0 μg/m3 (13) 26.0