AQSQID: 000105301

Site Name: Langdale Elementary

Location: Langdale, CC

Reporting: True, Located: True

Current AQI: 52.0

Langdale CC, CA: 49.4417, -123.4917

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2019, 11 p.m. N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 21, 2019, 10 p.m. N/A 1.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 27.0 μg/m3 (82) 82.0
 
Sept. 21, 2019, 9 p.m. N/A 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 8 p.m. N/A 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 7 p.m. N/A 3.1 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 6 p.m. N/A 3.1 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 5 p.m. N/A 4.0 ppb (4) N/A 4.0 ppb (4) N/A 3.0 ppb (4) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 4 p.m. N/A 3.4 ppb (3) N/A 2.0 ppb (2) N/A 2.0 ppb (3) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 21, 2019, 3 p.m. N/A 3.4 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 21, 2019, 2 p.m. N/A 3.9 ppb (4) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 21, 2019, noon N/A 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2019, 11 a.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 10 a.m. N/A 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 21, 2019, 9 a.m. N/A 1.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 21, 2019, 8 a.m. N/A 1.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 21, 2019, 7 a.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2019, 6 a.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2019, 5 a.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 21, 2019, 4 a.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 21, 2019, 3 a.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 21, 2019, 2 a.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 21, 2019, 1 a.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2019, midnight N/A 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 20, 2019, 11 p.m. N/A 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 10 p.m. N/A 1.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 9 p.m. N/A 1.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 8 p.m. N/A 2.3 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 7 p.m. N/A 2.6 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 6 p.m. N/A 2.9 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 5 p.m. N/A 4.3 ppb (4) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 4 p.m. N/A 3.5 ppb (3) N/A 3.0 ppb (3) N/A 2.0 ppb (3) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 3 p.m. N/A 2.6 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 2 p.m. N/A 6.8 ppb (6) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2019, 1 p.m. N/A 3.4 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2019, 11 a.m. N/A 1.8 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 20, 2019, 10 a.m. N/A 2.2 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
Sept. 20, 2019, 9 a.m. N/A 2.2 ppb (2) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
Sept. 20, 2019, 8 a.m. N/A 2.2 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 21.0 μg/m3 (69) 69.0
 
Sept. 20, 2019, 7 a.m. N/A 1.7 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
Sept. 20, 2019, 6 a.m. N/A 1.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 21.0 μg/m3 (69) 69.0
 
Sept. 20, 2019, 5 a.m. N/A 1.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 20.0 μg/m3 (67) 67.0
 
Sept. 20, 2019, 4 a.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 3 a.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 2 a.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 1 a.m. N/A 1.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2019, midnight N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2019, 11 p.m. N/A 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 19, 2019, 10 p.m. N/A 5.4 ppb (5) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2019, 9 p.m. N/A 3.9 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2019, 8 p.m. N/A 2.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 7 p.m. N/A 2.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 6 p.m. N/A 2.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 5 p.m. N/A 5.4 ppb (5) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 4 p.m. N/A 4.9 ppb (5) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 3 p.m. N/A 4.3 ppb (4) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 2 p.m. N/A 5.2 ppb (5) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) 5.0
 
Sept. 19, 2019, 1 p.m. N/A 3.3 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 19, 2019, noon N/A 1.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 10 a.m. N/A 1.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 19, 2019, 9 a.m. N/A 1.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 19, 2019, 8 a.m. N/A 1.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 19, 2019, 7 a.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 19, 2019, 6 a.m. N/A 1.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 19, 2019, 5 a.m. N/A 1.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
Sept. 19, 2019, 4 a.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 2.0
 
Sept. 19, 2019, 3 a.m. N/A 1.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 1.0
 
Sept. 19, 2019, 2 a.m. N/A 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 19, 2019, 1 a.m. N/A 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, midnight N/A 2.5 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A
Sept. 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 17, 2019, 11 p.m. N/A 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 17, 2019, 10 p.m. N/A 10.0 ppb (9) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 11.0
 
Sept. 17, 2019, 9 p.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 17, 2019, 8 p.m. N/A 3.3 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Sept. 17, 2019, 7 p.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 17, 2019, 6 p.m. N/A 3.3 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 4.0
 
Sept. 17, 2019, 5 p.m. N/A 5.1 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Sept. 17, 2019, 4 p.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 17, 2019, 3 p.m. N/A 10.6 ppb (10) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Sept. 17, 2019, 2 p.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 17, 2019, 1 p.m. N/A 7.9 ppb (7) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 7.0
 
Sept. 17, 2019, noon N/A 1.8 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 5.0
 
Sept. 17, 2019, 4 a.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A -1.0 μg/m3 (0) 2.0
 
Sept. 17, 2019, 3 a.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A -2.0 μg/m3 (0) 2.0
 
Sept. 17, 2019, 2 a.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 17, 2019, 1 a.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 17, 2019, midnight N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 16, 2019, 11 p.m. N/A 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 16, 2019, 10 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 16, 2019, 9 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 8 p.m. N/A 2.6 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 16, 2019, 7 p.m. N/A 1.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 16, 2019, 6 p.m. N/A 2.3 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 16, 2019, 5 p.m. N/A 3.0 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Sept. 16, 2019, 4 p.m. N/A 4.7 ppb (4) N/A 6.0 ppb (6) N/A 2.0 ppb (3) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 3 p.m. N/A 2.1 ppb (2) N/A 5.0 ppb (5) N/A 3.0 ppb (4) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 2 p.m. N/A 0.9 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 16, 2019, 1 p.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 16, 2019, noon N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 16, 2019, 11 a.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 16, 2019, 10 a.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 16, 2019, 9 a.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A
Sept. 16, 2019, 7 a.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 16, 2019, 6 a.m. N/A 0.5 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 5 a.m. N/A 0.5 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 16, 2019, 4 a.m. N/A 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 16, 2019, 3 a.m. N/A 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 16, 2019, 2 a.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 16, 2019, 1 a.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 16, 2019, midnight N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 11 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 10 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 9 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 15, 2019, 8 p.m. N/A 1.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 15, 2019, 7 p.m. N/A 1.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 15, 2019, 6 p.m. N/A 1.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 15, 2019, 5 p.m. N/A 1.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 15, 2019, 4 p.m. N/A 1.4 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Sept. 15, 2019, 3 p.m. N/A 1.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Sept. 15, 2019, 2 p.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Sept. 15, 2019, 1 p.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 15, 2019, noon N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 11 a.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 2.0
 
Sept. 15, 2019, 10 a.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 9 a.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 8 a.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A
Sept. 15, 2019, 6 a.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 15, 2019, 5 a.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Sept. 15, 2019, 4 a.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 15, 2019, 3 a.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 15, 2019, 2 a.m. N/A 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 15, 2019, 1 a.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Sept. 15, 2019, midnight N/A 1.6 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) N/A N/A N/A 0.0 μg/m3 (0) 5.0
 
Sept. 14, 2019, 11 p.m. N/A 1.5 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 0.0 μg/m3 (0) 4.0
 
Sept. 14, 2019, 10 p.m. N/A 1.5 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 9 p.m. N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 8 p.m. N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 14, 2019, 7 p.m. N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 14, 2019, 6 p.m. N/A 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 14, 2019, 5 p.m. N/A 1.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 5.0
 
Sept. 14, 2019, 4 p.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 3 p.m. N/A 0.5 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 14, 2019, 2 p.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 1 p.m. N/A 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 14, 2019, noon N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Sept. 14, 2019, 11 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 14, 2019, 10 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 14, 2019, 9 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 14, 2019, 8 a.m. N/A 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 7 a.m. N/A 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A
Sept. 14, 2019, 5 a.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 4 a.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 14, 2019, 3 a.m. N/A 0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 14, 2019, 2 a.m. N/A 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 14, 2019, 1 a.m. N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 14, 2019, midnight N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0