ID: 2297

AQSQID: 020200018

Site Name: Garden

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

Updated: Jan. 16, 2021, 5:31 p.m.

Location: Anchorage (Airport Heights), AK

Reporting: True, Located: True

Current AQI: 9.0

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
Jan. 16, 2021, 4 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) 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2021, 3 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) 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2021, 1 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) 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 8.0 μg/m3 (8) 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 13.0 μg/m3 (13) 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 16.0 μg/m3 (15) 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 1.4 ppb (16) 44.0 μg/m3 (41) 50.0 μg/m3 (137) 137.0
 
Jan. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 1.5 ppb (18) 30.0 μg/m3 (28) 29.0 μg/m3 (87) 87.0
 
Jan. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 1.6 ppb (19) 37.0 μg/m3 (35) 34.0 μg/m3 (98) 98.0
 
Jan. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.4 ppb (16) 35.0 μg/m3 (33) 34.0 μg/m3 (98) 98.0
 
Jan. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 36.0 μg/m3 (34) 33.0 μg/m3 (95) 95.0
 
Jan. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 7.0 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 8.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2021, midnight 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
 
Jan. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 7.0 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 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) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 8 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
 
Jan. 15, 2021, 7 p.m. 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
 
Jan. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (2) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 5.0
 
Jan. 15, 2021, 3 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) 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2021, 2 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) 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2021, 1 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) 1.0 μg/m3 (5) 5.0
 
Jan. 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A 2.5 ppb (29) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 29.0
 
Jan. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 7.0
 
Jan. 15, 2021, 9 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) 2.0 μg/m3 (9) 10.0
 
Jan. 15, 2021, 8 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) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 16.0 μg/m3 (15) 15.0 μg/m3 (58) 58.0
 
Jan. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 10.0 μg/m3 (10) 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 24.0 μg/m3 (23) 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 17.0 μg/m3 (16) 16.0 μg/m3 (60) 60.0
 
Jan. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2021, 1 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) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2021, 11 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) 1.0 μg/m3 (5) 5.0
 
Jan. 14, 2021, 10 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) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2021, 6 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) 2.0 μg/m3 (9) 9.0
 
Jan. 14, 2021, 5 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) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2021, 4 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) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 4.0 μg/m3 (4) 7.0 μg/m3 (30) 30.0
 
Jan. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 7.0
 
Jan. 14, 2021, noon N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 14.0 μg/m3 (13) 17.0 μg/m3 (62) 62.0
 
Jan. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 15.0 μg/m3 (14) 18.0 μg/m3 (64) 64.0
 
Jan. 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 10.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 27.0 μg/m3 (25) 22.0 μg/m3 (72) 72.0
 
Jan. 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 27.0 μg/m3 (25) 29.0 μg/m3 (87) 87.0
 
Jan. 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 28.0 μg/m3 (26) 26.0 μg/m3 (81) 81.0
 
Jan. 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 9.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 6.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A N/A 8.0
 
Jan. 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2021, 9 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) 7.0 μg/m3 (30) 30.0
 
Jan. 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 3 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) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2021, noon N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 11.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 12.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 11.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 22.0 μg/m3 (21) 19.0 μg/m3 (66) 66.0
 
Jan. 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 14.0 μg/m3 (13) 26.0 μg/m3 (81) 81.0
 
Jan. 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.6 ppb (19) 27.0 μg/m3 (25) 26.0 μg/m3 (81) 81.0
 
Jan. 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 1.7 ppb (20) 36.0 μg/m3 (34) 35.0 μg/m3 (100) 100.0
 
Jan. 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 1.7 ppb (20) 27.0 μg/m3 (25) 28.0 μg/m3 (85) 85.0
 
Jan. 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 1.8 ppb (21) 32.0 μg/m3 (30) 28.0 μg/m3 (85) 85.0
 
Jan. 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 1.5 ppb (18) 15.0 μg/m3 (14) 15.0 μg/m3 (58) 58.0
 
Jan. 13, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 14.0 μg/m3 (13) 16.0 μg/m3 (60) 60.0
 
Jan. 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 12.0 μg/m3 (12) 13.0 μg/m3 (53) 53.0
 
Jan. 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) 13.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 1.5 ppb (18) 14.0 μg/m3 (13) 18.0 μg/m3 (64) 64.0
 
Jan. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 6.0 μg/m3 (6) 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2021, 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) 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 6.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2021, noon N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 5.0 μg/m3 (5) 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 7.0 μg/m3 (7) 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2021, 8 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) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 21.0 μg/m3 (20) 21.0 μg/m3 (70) 70.0
 
Jan. 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 29.0 μg/m3 (27) 33.0 μg/m3 (95) 95.0
 
Jan. 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 14.0 μg/m3 (13) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 18.0 μg/m3 (17) 23.0 μg/m3 (74) 74.0
 
Jan. 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2021, 2 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) 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 8.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 10.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Jan. 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 9.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 2.0 μg/m3 (2) 3.0 μg/m3 (13) 13.0
 
Jan. 11, 2021, 3 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) 3.0 μg/m3 (13) 13.0
 
Jan. 11, 2021, 2 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) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2021, 1 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
 
Jan. 11, 2021, noon N/A N/A N/A N/A N/A N/A N/A 2.5 ppb (29) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 29.0
 
Jan. 11, 2021, 11 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) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 10 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) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 9.0 μg/m3 (9) 14.0 μg/m3 (55) 55.0
 
Jan. 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 25.0 μg/m3 (24) 23.0 μg/m3 (74) 74.0
 
Jan. 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (14) 26.0 μg/m3 (25) 24.0 μg/m3 (77) 77.0
 
Jan. 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) 37.0 μg/m3 (35) 37.0 μg/m3 (105) 105.0
 
Jan. 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 18.0 μg/m3 (17) 15.0 μg/m3 (58) 58.0
 
Jan. 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 26.0 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
Jan. 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (12) 29.0 μg/m3 (27) 19.0 μg/m3 (66) 66.0
 
Jan. 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (13) 22.0 μg/m3 (21) 19.0 μg/m3 (66) 66.0
 
Jan. 11, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 10.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Jan. 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2021, 5 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) 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 6.0
 
Jan. 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2021, 2 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) 2.0 μg/m3 (9) 9.0
 
Jan. 10, 2021, 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) 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2021, noon N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2021, 11 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) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 7.0 μg/m3 (7) 8.0 μg/m3 (34) 34.0
 
Jan. 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 8.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
Jan. 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 13.0 μg/m3 (13) 17.0 μg/m3 (62) 62.0
 
Jan. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 20.0 μg/m3 (19) 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Jan. 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 27.0 μg/m3 (25) 27.0 μg/m3 (83) 83.0
 
Jan. 10, 2021, 3 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) 15.0 μg/m3 (58) 58.0
 
Jan. 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Jan. 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 9.0
 
Jan. 9, 2021, 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) 1.0 μg/m3 (5) 5.0
 
Jan. 9, 2021, 10 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) 2.0 μg/m3 (9) 9.0
 
Jan. 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 5.0
 
Jan. 9, 2021, 8 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) 2.0 μg/m3 (9) 9.0
 
Jan. 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 9, 2021, 5 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) 0.0 μg/m3 (0) 4.0