AQSQID: 020200018

Site Name: Garden

Location: Anchorage, AK

Reporting: True, Located: True

Current AQI: 6.0

Anchorage AK, US: 61.205861, -149.8246

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
April 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
April 17, 2019, midnight N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
April 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
April 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
April 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
April 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 3.0 μg/m3 (12) 12.0
 
April 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 2.0 μg/m3 (8) 11.0
 
April 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 3.0 μg/m3 (12) 12.0
 
April 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 3.0 μg/m3 (12) 12.0
 
April 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
April 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
April 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
April 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
April 16, 2019, noon 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
 
April 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
April 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
April 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 4.0 μg/m3 (17) 17.0
 
April 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 25.0
 
April 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 5.0 μg/m3 (21) 21.0
 
April 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 4.0 μg/m3 (17) 17.0
 
April 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 3.0 μg/m3 (12) 12.0
 
April 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
April 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
April 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
April 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
April 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 9.0 μg/m3 (38) 38.0
 
April 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (14) N/A 17.0 μg/m3 (61) 61.0
 
April 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (12) N/A 11.0 μg/m3 (46) 46.0
 
April 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 8.0 μg/m3 (33) 33.0
 
April 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A 3.1 ppb (34) N/A 6.0 μg/m3 (25) 34.0
 
April 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
April 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
April 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
April 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
April 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
April 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 3.0 μg/m3 (12) 12.0
 
April 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 1.0 μg/m3 (4) 9.0
 
April 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 1.0 μg/m3 (4) 4.0
 
April 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
April 15, 2019, midnight N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 1.0 μg/m3 (4) 4.0
 
April 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A -1.0 μg/m3 (0) 3.0
 
April 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 0.0 μg/m3 (0) 3.0
 
April 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
April 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
April 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 2.0 μg/m3 (8) 8.0
 
April 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 4.0 μg/m3 (17) 17.0
 
April 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 25.0
 
April 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 5.0 μg/m3 (21) 21.0
 
April 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 5.0 μg/m3 (21) 21.0
 
April 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 7.0 μg/m3 (29) 29.0
 
April 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
April 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 7.0 μg/m3 (29) 29.0
 
April 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 6.0 μg/m3 (25) 25.0
 
April 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 11.0 μg/m3 (46) 46.0
 
April 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 16.0 μg/m3 (59) 59.0
 
April 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 16.0 μg/m3 (59) 59.0
 
April 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 21.0 μg/m3 (69) 69.0
 
April 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
April 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
April 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
April 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
April 14, 2019, midnight N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
April 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 0.0 μg/m3 (0) 3.0
 
April 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 1.0 μg/m3 (4) 4.0
 
April 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
April 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
April 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 9.0 μg/m3 (38) 38.0
 
April 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 6.0 μg/m3 (25) 25.0
 
April 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 6.0 μg/m3 (25) 25.0
 
April 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 6.0 μg/m3 (25) 25.0
 
April 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 6.0 μg/m3 (25) 25.0
 
April 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 8.0 μg/m3 (33) 33.0
 
April 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 10.0 μg/m3 (42) 42.0
 
April 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
April 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 14.0 μg/m3 (54) 54.0
 
April 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
April 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
April 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 20.0 μg/m3 (67) 67.0
 
April 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
April 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
April 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
April 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
April 13, 2019, midnight N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
April 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
April 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 2.0 μg/m3 (8) 8.0
 
April 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 5.0 μg/m3 (21) 21.0
 
April 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 3.4 ppb (38) N/A 7.0 μg/m3 (29) 38.0
 
April 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (14) N/A 3.0 μg/m3 (12) 14.0
 
April 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 3.0 μg/m3 (12) 12.0
 
April 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 3.0 μg/m3 (12) 12.0
 
April 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (12) N/A 3.0 μg/m3 (12) 12.0
 
April 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (14) N/A 4.0 μg/m3 (17) 17.0
 
April 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 4.0 μg/m3 (17) 17.0
 
April 12, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 5.0 μg/m3 (21) 21.0
 
April 12, 2019, noon N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 25.0
 
April 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 25.0
 
April 12, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 25.0
 
April 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
April 12, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 4.0 μg/m3 (17) 17.0
 
April 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 5.0 μg/m3 (21) 21.0
 
April 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 4.0 μg/m3 (17) 17.0
 
April 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 3.0 μg/m3 (12) 12.0
 
April 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
April 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
April 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 1.0 μg/m3 (4) 4.0
 
April 12, 2019, midnight N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 5.0 μg/m3 (21) 21.0
 
April 11, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
April 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 2.0 μg/m3 (8) 9.0
 
April 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 4.0 μg/m3 (17) 17.0
 
April 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 5.0 μg/m3 (21) 21.0
 
April 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 6.0 μg/m3 (25) 25.0
 
April 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 6.0 μg/m3 (25) 25.0
 
April 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (12) N/A 7.0 μg/m3 (29) 29.0
 
April 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 6.0 μg/m3 (25) 25.0
 
April 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 3.0 μg/m3 (12) 12.0
 
April 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 0.0 μg/m3 (0) 8.0
 
April 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 0.0 μg/m3 (0) 10.0
 
April 11, 2019, noon N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 3.0 μg/m3 (12) 12.0
 
April 11, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 3.0 μg/m3 (12) 12.0
 
April 11, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 3.0 μg/m3 (12) 12.0
 
April 11, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 2.0 μg/m3 (8) 8.0
 
April 11, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A -1.0 μg/m3 (0) 8.0
 
April 11, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 7.0 μg/m3 (29) 29.0
 
April 11, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 10.0 μg/m3 (42) 42.0
 
April 11, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 4.0 μg/m3 (17) 17.0
 
April 11, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A -1.0 μg/m3 (0) 9.0
 
April 11, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A -1.0 μg/m3 (0) 9.0
 
April 11, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 0.0 μg/m3 (0) 9.0
 
April 11, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 1.0 μg/m3 (4) 7.0
 
April 11, 2019, midnight N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
April 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 3.0 μg/m3 (12) 12.0
 
April 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 1.0 μg/m3 (4) 6.0
 
April 10, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A -2.0 μg/m3 (0) 4.0
 
April 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 3.0 μg/m3 (12) 12.0
 
April 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) N/A 8.0 μg/m3 (33) 33.0
 
April 10, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (12) N/A 8.0 μg/m3 (33) 33.0
 
April 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.4 ppb (16) N/A 9.0 μg/m3 (38) 38.0
 
April 10, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 1.6 ppb (18) N/A 9.0 μg/m3 (38) 38.0
 
April 10, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 1.6 ppb (18) N/A 11.0 μg/m3 (46) 46.0
 
April 10, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (13) N/A 18.0 μg/m3 (63) 63.0
 
April 10, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (12) N/A 2.0 μg/m3 (8) 12.0
 
April 10, 2019, noon N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (12) N/A 4.0 μg/m3 (17) 17.0
 
April 10, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 6.0 μg/m3 (25) 25.0
 
April 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) N/A 6.0 μg/m3 (25) 25.0
 
April 10, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 5.0 μg/m3 (21) 21.0
 
April 10, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) N/A 9.0 μg/m3 (38) 38.0
 
April 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
April 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 5.0 μg/m3 (21) 21.0
 
April 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 10, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
April 10, 2019, 3 a.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