ID: 2297

AQSQID: 020200018

Site Name: Garden

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

Updated: Oct. 26, 2020, 2:39 a.m.

Location: Anchorage (Airport Heights), AK

Reporting: True, Located: True

Current AQI: 4.0

Anchorage (Airport Heights) AK, US: 61.205861, -149.8246

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 26, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 3.0 μg/m3 (3) N/A 4.0
 
Oct. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 2.0 μg/m3 (2) N/A 3.0
 
Oct. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 2.0 μg/m3 (2) N/A 3.0
 
Oct. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 2.0 μg/m3 (2) N/A 3.0
 
Oct. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 2.0 μg/m3 (2) N/A 4.0
 
Oct. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 3.0 μg/m3 (3) N/A 7.0
 
Oct. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 5.0 μg/m3 (5) N/A 5.0
 
Oct. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 1.0 μg/m3 (1) N/A 3.0
 
Oct. 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 0.0 μg/m3 (0) N/A 3.0
 
Oct. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 3.0 μg/m3 (3) N/A 6.0
 
Oct. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 3.0 μg/m3 (3) N/A 6.0
 
Oct. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 3.0 μg/m3 (3) N/A 5.0
 
Oct. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 5.0 μg/m3 (5) N/A 5.0
 
Oct. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 6.0 μg/m3 (6) N/A 6.0
 
Oct. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 25, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 5.0 μg/m3 (5) N/A 5.0
 
Oct. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 1.0 μg/m3 (1) N/A 2.0
 
Oct. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 2.0 μg/m3 (2) N/A 3.0
 
Oct. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 5.0 μg/m3 (5) N/A 5.0
 
Oct. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 4.0 μg/m3 (4) N/A 5.0
 
Oct. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 6.0 μg/m3 (6) N/A 6.0
 
Oct. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 1.0 μg/m3 (1) N/A 2.0
 
Oct. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 2.0 μg/m3 (2) N/A 2.0
 
Oct. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 2.0 μg/m3 (2) N/A 2.0
 
Oct. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 6.0 μg/m3 (6) N/A 6.0
 
Oct. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 10.0 μg/m3 (10) N/A 10.0
 
Oct. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 6.0 μg/m3 (6) N/A 6.0
 
Oct. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 3.0 μg/m3 (3) N/A 5.0
 
Oct. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 3.0 μg/m3 (3) N/A 4.0
 
Oct. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 2.0 μg/m3 (2) N/A 3.0
 
Oct. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) N/A 4.0
 
Oct. 24, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 2.0 μg/m3 (2) N/A 3.0
 
Oct. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 1.0 μg/m3 (1) N/A 3.0
 
Oct. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 2.0 μg/m3 (2) N/A 5.0
 
Oct. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 2.0 μg/m3 (2) N/A 7.0
 
Oct. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 3.0 μg/m3 (3) N/A 6.0
 
Oct. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 3.0 μg/m3 (3) N/A 6.0
 
Oct. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 1.0 μg/m3 (1) N/A 8.0
 
Oct. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 3.0 μg/m3 (3) N/A 6.0
 
Oct. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) N/A 6.0
 
Oct. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 3.0 μg/m3 (3) N/A 4.0
 
Oct. 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A 2.7 ppb (31) 4.0 μg/m3 (4) N/A 31.0
 
Oct. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 2.0 μg/m3 (2) N/A 6.0
 
Oct. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 2.0 μg/m3 (2) N/A 8.0
 
Oct. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 5.0 μg/m3 (5) N/A 8.0
 
Oct. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 4.0 μg/m3 (4) N/A 13.0
 
Oct. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 3.0 μg/m3 (3) N/A 13.0
 
Oct. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 4.0 μg/m3 (4) N/A 14.0
 
Oct. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 4.0 μg/m3 (4) N/A 13.0
 
Oct. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 5.0 μg/m3 (5) N/A 13.0
 
Oct. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) N/A 7.0
 
Oct. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 4.0 μg/m3 (4) N/A 5.0
 
Oct. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 1.0 μg/m3 (1) N/A 4.0
 
Oct. 23, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 2.0 μg/m3 (2) N/A 2.0
 
Oct. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 3.0 μg/m3 (3) N/A 3.0
 
Oct. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 1.0 μg/m3 (1) N/A 2.0
 
Oct. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 0.0 μg/m3 (0) N/A 2.0
 
Oct. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) -3.0 μg/m3 (0) N/A 3.0
 
Oct. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) N/A N/A 3.0
 
Oct. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A N/A 7.0
 
Oct. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) N/A 17.0 μg/m3 (62) 62.0
 
Oct. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 19.0 μg/m3 (18) 22.0 μg/m3 (72) 72.0
 
Oct. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 19.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
Oct. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Oct. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 6.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Oct. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 11.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Oct. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Oct. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Oct. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 33.0 μg/m3 (31) 24.0 μg/m3 (77) 77.0
 
Oct. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 24.0 μg/m3 (23) 15.0 μg/m3 (58) 58.0
 
Oct. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 41.0 μg/m3 (38) 21.0 μg/m3 (70) 70.0
 
Oct. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 57.0 μg/m3 (52) 29.0 μg/m3 (87) 87.0
 
Oct. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 47.0 μg/m3 (44) 13.0 μg/m3 (53) 53.0
 
Oct. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 35.0 μg/m3 (33) 14.0 μg/m3 (55) 55.0
 
Oct. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 63.0 μg/m3 (55) 25.0 μg/m3 (79) 79.0
 
Oct. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 22.0 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
Oct. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 12.0 μg/m3 (12) 0.0 μg/m3 (0) 12.0
 
Oct. 22, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 8.0
 
Oct. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 6.0
 
Oct. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 7.0 μg/m3 (7) 0.0 μg/m3 (0) 7.0
 
Oct. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 10.0
 
Oct. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Oct. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 50.0 μg/m3 (47) 21.0 μg/m3 (70) 70.0
 
Oct. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) 40.0 μg/m3 (38) 19.0 μg/m3 (66) 66.0
 
Oct. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.4 ppb (16) 36.0 μg/m3 (34) 12.0 μg/m3 (50) 50.0
 
Oct. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 43.0 μg/m3 (40) 19.0 μg/m3 (66) 66.0
 
Oct. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 30.0 μg/m3 (28) 14.0 μg/m3 (55) 55.0
 
Oct. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
Oct. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 13.0
 
Oct. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
Oct. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 16.0 μg/m3 (15) 14.0 μg/m3 (55) 55.0
 
Oct. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 28.0 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
Oct. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 25.0 μg/m3 (24) 20.0 μg/m3 (68) 68.0
 
Oct. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 27.0 μg/m3 (25) 16.0 μg/m3 (60) 60.0
 
Oct. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 42.0 μg/m3 (39) 30.0 μg/m3 (89) 89.0
 
Oct. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 36.0 μg/m3 (34) 17.0 μg/m3 (62) 62.0
 
Oct. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 43.0 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
Oct. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 35.0 μg/m3 (33) 16.0 μg/m3 (60) 60.0
 
Oct. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
Oct. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 13.0
 
Oct. 21, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 13.0
 
Oct. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 21.0
 
Oct. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 13.0
 
Oct. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 9.0
 
Oct. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
Oct. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) 44.0 μg/m3 (41) 13.0 μg/m3 (53) 53.0
 
Oct. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 10.0 μg/m3 (42) 42.0
 
Oct. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 45.0 μg/m3 (42) 13.0 μg/m3 (53) 53.0
 
Oct. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.4 ppb (16) 33.0 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
Oct. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 24.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
Oct. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Oct. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Oct. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 10.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Oct. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Oct. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Oct. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 21.0 μg/m3 (20) 17.0 μg/m3 (62) 62.0
 
Oct. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 23.0 μg/m3 (22) 23.0 μg/m3 (74) 74.0
 
Oct. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 30.0 μg/m3 (28) 21.0 μg/m3 (70) 70.0
 
Oct. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 33.0 μg/m3 (31) 12.0 μg/m3 (50) 50.0
 
Oct. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 43.0 μg/m3 (40) 25.0 μg/m3 (79) 79.0
 
Oct. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 32.0 μg/m3 (30) 19.0 μg/m3 (66) 66.0
 
Oct. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 18.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
Oct. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Oct. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 13.0
 
Oct. 20, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 9.0
 
Oct. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 3.0
 
Oct. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 4.0
 
Oct. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 4.0
 
Oct. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 7.0
 
Oct. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Oct. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Oct. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Oct. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 0.0 μg/m3 (0) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) N/A N/A 3.0
 
Oct. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Oct. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 13.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Oct. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 13.0 μg/m3 (13) 13.0 μg/m3 (53) 53.0
 
Oct. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 22.0 μg/m3 (21) 18.0 μg/m3 (64) 64.0
 
Oct. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 15.0 μg/m3 (14) 14.0 μg/m3 (55) 55.0
 
Oct. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 21.0 μg/m3 (20) 22.0 μg/m3 (72) 72.0
 
Oct. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 10.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Oct. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 9.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Oct. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
Oct. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 21.0
 
Oct. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 5.0
 
Oct. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 9.0
 
Oct. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0