AQSQID: 000102701

Site Name: Williams Lake Columneetza School

Location: Williams Lake, CC

Reporting: True, Located: True

Current AQI: 17.0

Williams Lake CC, CA: 52.1342, -122.1528

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 17, 2019, 8 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 2.3 μg/m3 (10) 17.0
 
Nov. 17, 2019, 7 p.m. N/A 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) N/A N/A 1.3 μg/m3 (5) 15.0
 
Nov. 17, 2019, 6 p.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) N/A N/A 2.7 μg/m3 (11) 15.0
 
Nov. 17, 2019, 5 p.m. N/A 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A 2.0 μg/m3 (8) 14.0
 
Nov. 17, 2019, 4 p.m. N/A 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) N/A N/A 4.3 μg/m3 (18) 18.0
 
Nov. 17, 2019, 3 p.m. N/A -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) N/A N/A 1.8 μg/m3 (8) 11.0
 
Nov. 17, 2019, 2 p.m. N/A -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) N/A N/A 3.1 μg/m3 (13) 13.0
 
Nov. 17, 2019, 1 p.m. N/A -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) N/A N/A 1.6 μg/m3 (7) 15.0
 
Nov. 17, 2019, noon N/A -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A 2.8 μg/m3 (12) 15.0
 
Nov. 17, 2019, 11 a.m. N/A -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) N/A N/A 1.8 μg/m3 (8) 15.0
 
Nov. 17, 2019, 10 a.m. N/A -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) N/A N/A 1.6 μg/m3 (7) 20.0
 
Nov. 17, 2019, 9 a.m. N/A -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
Nov. 17, 2019, 8 a.m. N/A -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 0.9 μg/m3 (4) 22.0
 
Nov. 17, 2019, 7 a.m. N/A 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
Nov. 17, 2019, 6 a.m. N/A -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 1.3 μg/m3 (5) 22.0
 
Nov. 17, 2019, 5 a.m. N/A -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 1.2 μg/m3 (5) 22.0
 
Nov. 17, 2019, 4 a.m. N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 1.2 μg/m3 (5) 22.0
 
Nov. 17, 2019, 3 a.m. N/A 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 0.9 μg/m3 (4) 22.0
 
Nov. 17, 2019, 2 a.m. N/A 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 1.2 μg/m3 (5) 21.0
 
Nov. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Nov. 17, 2019, midnight N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 0.5 μg/m3 (2) 21.0
 
Nov. 16, 2019, 11 p.m. N/A 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A 0.5 μg/m3 (2) 19.0
 
Nov. 16, 2019, 10 p.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A 0.8 μg/m3 (3) 19.0
 
Nov. 16, 2019, 9 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) N/A N/A 0.9 μg/m3 (4) 18.0
 
Nov. 16, 2019, 8 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 1.2 μg/m3 (5) 16.0
 
Nov. 16, 2019, 7 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) N/A N/A 2.7 μg/m3 (11) 13.0
 
Nov. 16, 2019, 6 p.m. N/A 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (5) N/A N/A 6.7 μg/m3 (28) 28.0
 
Nov. 16, 2019, 5 p.m. N/A 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 6.0 ppb (5) N/A N/A 8.6 μg/m3 (36) 36.0
 
Nov. 16, 2019, 4 p.m. N/A 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 2.0 ppb (2) N/A N/A 11.0 μg/m3 (46) 46.0
 
Nov. 16, 2019, 3 p.m. N/A 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 2.0 ppb (2) N/A N/A 6.9 μg/m3 (29) 29.0
 
Nov. 16, 2019, 2 p.m. N/A 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 3.0 ppb (2) N/A N/A 4.6 μg/m3 (19) 19.0
 
Nov. 16, 2019, 1 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 3.0 ppb (2) N/A N/A 3.8 μg/m3 (16) 16.0
 
Nov. 16, 2019, noon N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 3.0 ppb (2) N/A N/A 3.1 μg/m3 (13) 13.0
 
Nov. 16, 2019, 11 a.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 3.0 ppb (2) N/A N/A 2.2 μg/m3 (9) 9.0
 
Nov. 16, 2019, 10 a.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 3.0 ppb (2) N/A N/A 2.2 μg/m3 (9) 9.0
 
Nov. 16, 2019, 9 a.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 4.0 ppb (3) N/A N/A 2.9 μg/m3 (12) 12.0
 
Nov. 16, 2019, 8 a.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 6.0 ppb (5) N/A N/A 5.1 μg/m3 (21) 21.0
 
Nov. 16, 2019, 7 a.m. N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 5.0 ppb (4) N/A N/A 5.8 μg/m3 (24) 24.0
 
Nov. 16, 2019, 6 a.m. N/A 2.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 2.0 ppb (2) N/A N/A 8.4 μg/m3 (35) 35.0
 
Nov. 16, 2019, 5 a.m. N/A 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A 2.0 ppb (2) N/A N/A 11.2 μg/m3 (47) 47.0
 
Nov. 16, 2019, 4 a.m. N/A 7.9 ppb (7) N/A 8.0 ppb (7) N/A N/A 1.0 ppb (1) N/A N/A 10.6 μg/m3 (44) 44.0
 
Nov. 16, 2019, 3 a.m. N/A 23.9 ppb (22) N/A 8.0 ppb (7) N/A N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (71) 71.0
 
Nov. 16, 2019, 2 a.m. N/A 25.4 ppb (24) N/A 8.0 ppb (7) N/A N/A 1.0 ppb (1) N/A N/A 23.7 μg/m3 (75) 75.0
 
Nov. 16, 2019, 1 a.m. N/A 28.0 ppb (26) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) N/A N/A 21.3 μg/m3 (70) 70.0
 
Nov. 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.3 μg/m3 (68) 68.0
 
Nov. 15, 2019, 11 p.m. N/A 3.4 ppb (3) N/A 11.0 ppb (10) N/A N/A 6.0 ppb (5) N/A N/A 14.4 μg/m3 (55) 55.0
 
Nov. 15, 2019, 10 p.m. N/A 3.8 ppb (4) N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) N/A N/A 18.6 μg/m3 (64) 64.0
 
Nov. 15, 2019, 9 p.m. N/A 3.6 ppb (3) N/A 10.0 ppb (9) N/A N/A 7.0 ppb (5) N/A N/A 15.9 μg/m3 (58) 58.0
 
Nov. 15, 2019, 8 p.m. N/A 9.6 ppb (9) N/A 16.0 ppb (15) N/A N/A 4.0 ppb (3) N/A N/A 24.4 μg/m3 (76) 76.0
 
Nov. 15, 2019, 7 p.m. N/A 7.2 ppb (7) N/A 12.0 ppb (11) N/A N/A 6.0 ppb (5) N/A N/A 16.7 μg/m3 (60) 60.0
 
Nov. 15, 2019, 6 p.m. N/A 2.5 ppb (2) N/A 8.0 ppb (7) N/A N/A 9.0 ppb (7) N/A N/A 15.2 μg/m3 (57) 57.0
 
Nov. 15, 2019, 5 p.m. N/A 2.1 ppb (2) N/A 9.0 ppb (8) N/A N/A 7.0 ppb (5) N/A N/A 21.0 μg/m3 (69) 69.0
 
Nov. 15, 2019, 4 p.m. N/A 1.7 ppb (2) N/A 11.0 ppb (10) N/A N/A 6.0 ppb (5) N/A N/A 17.5 μg/m3 (62) 62.0
 
Nov. 15, 2019, 3 p.m. N/A 3.8 ppb (4) N/A 14.0 ppb (13) N/A N/A 4.0 ppb (3) N/A N/A 15.0 μg/m3 (56) 56.0
 
Nov. 15, 2019, 2 p.m. N/A 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) N/A N/A 13.8 μg/m3 (54) 54.0
 
Nov. 15, 2019, 1 p.m. N/A 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) N/A N/A 16.4 μg/m3 (59) 59.0
 
Nov. 15, 2019, noon N/A -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) N/A N/A 13.9 μg/m3 (54) 54.0
 
Nov. 15, 2019, 11 a.m. N/A -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) N/A N/A 13.3 μg/m3 (53) 53.0
 
Nov. 15, 2019, 10 a.m. N/A -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A 13.1 μg/m3 (52) 52.0
 
Nov. 15, 2019, 9 a.m. N/A 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 9.4 μg/m3 (39) 39.0
 
Nov. 15, 2019, 8 a.m. N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 9.0 μg/m3 (38) 38.0
 
Nov. 15, 2019, 7 a.m. N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 7.6 μg/m3 (32) 32.0
 
Nov. 15, 2019, 6 a.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 6.2 μg/m3 (26) 26.0
 
Nov. 15, 2019, 5 a.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 9.8 μg/m3 (41) 41.0
 
Nov. 15, 2019, 4 a.m. N/A 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) N/A N/A 8.5 μg/m3 (35) 35.0
 
Nov. 15, 2019, 3 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A N/A 9.4 μg/m3 (39) 39.0
 
Nov. 15, 2019, 2 a.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) N/A N/A 6.1 μg/m3 (25) 25.0
 
Nov. 15, 2019, 1 a.m. N/A 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A N/A 5.8 μg/m3 (24) 24.0
 
Nov. 15, 2019, midnight N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A N/A 4.3 μg/m3 (18) 18.0
 
Nov. 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Nov. 14, 2019, 10 p.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) N/A N/A 3.7 μg/m3 (15) 16.0
 
Nov. 14, 2019, 9 p.m. N/A 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 3.1 μg/m3 (13) 17.0
 
Nov. 14, 2019, 8 p.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 2.6 μg/m3 (11) 17.0
 
Nov. 14, 2019, 7 p.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 2.2 μg/m3 (9) 17.0
 
Nov. 14, 2019, 6 p.m. N/A 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 2.3 μg/m3 (10) 17.0
 
Nov. 14, 2019, 5 p.m. N/A 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 2.1 μg/m3 (9) 17.0
 
Nov. 14, 2019, 4 p.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 2.3 μg/m3 (10) 17.0
 
Nov. 14, 2019, 3 p.m. N/A 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 2.1 μg/m3 (9) 17.0
 
Nov. 14, 2019, 2 p.m. N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 2.5 μg/m3 (10) 16.0
 
Nov. 14, 2019, 1 p.m. N/A 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 3.1 μg/m3 (13) 16.0
 
Nov. 14, 2019, noon N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 3.7 μg/m3 (15) 16.0
 
Nov. 14, 2019, 11 a.m. N/A 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) N/A N/A 3.6 μg/m3 (15) 15.0
 
Nov. 14, 2019, 10 a.m. N/A 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) N/A N/A 2.7 μg/m3 (11) 15.0
 
Nov. 14, 2019, 9 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
Nov. 14, 2019, 8 a.m. N/A 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (14) N/A N/A 1.8 μg/m3 (8) 14.0
 
Nov. 14, 2019, 7 a.m. N/A 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 17.0 ppb (13) N/A N/A 2.1 μg/m3 (9) 13.0
 
Nov. 14, 2019, 6 a.m. N/A 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 15.0 ppb (12) N/A N/A 3.0 μg/m3 (12) 12.0
 
Nov. 14, 2019, 5 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 15.0 ppb (12) N/A N/A 3.6 μg/m3 (15) 15.0
 
Nov. 14, 2019, 4 a.m. N/A 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 15.0 ppb (12) N/A N/A 2.0 μg/m3 (8) 12.0
 
Nov. 14, 2019, 3 a.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 15.0 ppb (12) N/A N/A 1.9 μg/m3 (8) 12.0
 
Nov. 14, 2019, 2 a.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) N/A N/A 1.9 μg/m3 (8) 12.0
 
Nov. 14, 2019, 1 a.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) N/A N/A 1.7 μg/m3 (7) 12.0
 
Nov. 14, 2019, midnight N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) N/A N/A 2.3 μg/m3 (10) 12.0
 
Nov. 13, 2019, 11 p.m. N/A 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 13.0 ppb (10) N/A N/A 3.3 μg/m3 (14) 14.0
 
Nov. 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Nov. 13, 2019, 9 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) N/A N/A 1.1 μg/m3 (5) 12.0
 
Nov. 13, 2019, 8 p.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) N/A N/A 1.0 μg/m3 (4) 12.0
 
Nov. 13, 2019, 7 p.m. N/A 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 14.0 ppb (11) N/A N/A 1.8 μg/m3 (8) 11.0
 
Nov. 13, 2019, 6 p.m. N/A 1.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 14.0 ppb (11) N/A N/A 1.1 μg/m3 (5) 11.0
 
Nov. 13, 2019, 5 p.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 12.0 ppb (9) N/A N/A 1.4 μg/m3 (6) 9.0
 
Nov. 13, 2019, 4 p.m. N/A 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 7.0 ppb (5) N/A N/A 4.7 μg/m3 (20) 20.0
 
Nov. 13, 2019, 3 p.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 9.0 ppb (7) N/A N/A 1.5 μg/m3 (6) 7.0
 
Nov. 13, 2019, 2 p.m. N/A 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 2.0 ppb (2) N/A N/A 4.4 μg/m3 (18) 18.0
 
Nov. 13, 2019, 1 p.m. N/A 2.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 2.0 ppb (2) N/A N/A 4.2 μg/m3 (18) 18.0
 
Nov. 13, 2019, noon N/A 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, 11 a.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 2.0 ppb (2) N/A N/A 3.6 μg/m3 (15) 15.0
 
Nov. 13, 2019, 10 a.m. N/A 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 2.0 ppb (2) N/A N/A 3.8 μg/m3 (16) 16.0
 
Nov. 13, 2019, 9 a.m. N/A 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 2.0 ppb (2) N/A N/A 7.9 μg/m3 (33) 33.0
 
Nov. 13, 2019, 8 a.m. N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 3.0 ppb (2) N/A N/A 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 7 a.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 3.0 ppb (2) N/A N/A 7.4 μg/m3 (31) 31.0
 
Nov. 13, 2019, 6 a.m. N/A 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 3.0 ppb (2) N/A N/A 13.8 μg/m3 (54) 54.0
 
Nov. 13, 2019, 5 a.m. N/A 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 7.0 ppb (5) N/A N/A 7.7 μg/m3 (32) 32.0
 
Nov. 13, 2019, 4 a.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 10.0 ppb (8) N/A N/A 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 3 a.m. N/A 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A 4.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 38.0
 
Nov. 13, 2019, 2 a.m. N/A 2.5 ppb (2) N/A 9.0 ppb (8) N/A N/A 2.0 ppb (2) N/A N/A 17.6 μg/m3 (62) 62.0
 
Nov. 13, 2019, 1 a.m. N/A 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) N/A N/A 10.4 μg/m3 (43) 43.0
 
Nov. 13, 2019, midnight N/A 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) N/A N/A 8.4 μg/m3 (35) 35.0
 
Nov. 12, 2019, 11 p.m. N/A 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) N/A N/A 8.5 μg/m3 (35) 35.0
 
Nov. 12, 2019, 10 p.m. N/A 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 13.0 ppb (10) N/A N/A 5.1 μg/m3 (21) 21.0
 
Nov. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
Nov. 12, 2019, 8 p.m. N/A 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) N/A N/A 5.4 μg/m3 (23) 23.0
 
Nov. 12, 2019, 7 p.m. N/A 3.3 ppb (3) N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) N/A N/A 6.6 μg/m3 (28) 28.0
 
Nov. 12, 2019, 6 p.m. N/A 3.3 ppb (3) N/A 7.0 ppb (6) N/A N/A 7.0 ppb (5) N/A N/A 8.3 μg/m3 (35) 35.0
 
Nov. 12, 2019, 5 p.m. N/A 8.5 ppb (8) N/A 11.0 ppb (10) N/A N/A 3.0 ppb (2) N/A N/A 22.1 μg/m3 (71) 71.0
 
Nov. 12, 2019, 4 p.m. N/A 10.6 ppb (10) N/A 13.0 ppb (12) N/A N/A 2.0 ppb (2) N/A N/A 8.8 μg/m3 (37) 37.0
 
Nov. 12, 2019, 3 p.m. N/A 4.4 ppb (4) N/A 11.0 ppb (10) N/A N/A 3.0 ppb (2) N/A N/A 8.1 μg/m3 (34) 34.0
 
Nov. 12, 2019, 2 p.m. N/A 2.3 ppb (2) N/A 8.0 ppb (7) N/A N/A 5.0 ppb (4) N/A N/A 11.8 μg/m3 (49) 49.0
 
Nov. 12, 2019, 1 p.m. N/A 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 5.0 ppb (4) N/A N/A 16.5 μg/m3 (60) 60.0
 
Nov. 12, 2019, noon N/A 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (5) N/A N/A 15.3 μg/m3 (57) 57.0
 
Nov. 12, 2019, 11 a.m. N/A 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) N/A N/A 9.8 μg/m3 (41) 41.0
 
Nov. 12, 2019, 10 a.m. N/A -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 14.0 ppb (11) N/A N/A 21.1 μg/m3 (69) 69.0
 
Nov. 12, 2019, 9 a.m. N/A -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) N/A N/A 9.5 μg/m3 (40) 40.0
 
Nov. 12, 2019, 8 a.m. N/A 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 13.0 ppb (10) N/A N/A 13.0 μg/m3 (52) 52.0
 
Nov. 12, 2019, 7 a.m. N/A -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 14.0 ppb (11) N/A N/A 17.0 μg/m3 (61) 61.0
 
Nov. 12, 2019, 6 a.m. N/A -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A 10.5 μg/m3 (44) 44.0
 
Nov. 12, 2019, 5 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) N/A N/A 8.2 μg/m3 (34) 34.0
 
Nov. 12, 2019, 4 a.m. N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Nov. 12, 2019, 3 a.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) N/A N/A 9.1 μg/m3 (38) 38.0
 
Nov. 12, 2019, 2 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) N/A N/A 8.4 μg/m3 (35) 35.0
 
Nov. 12, 2019, 1 a.m. N/A 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 10.0 μg/m3 (42) 42.0
 
Nov. 12, 2019, midnight N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A 8.5 μg/m3 (35) 35.0
 
Nov. 11, 2019, 11 p.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A N/A 5.6 μg/m3 (23) 23.0
 
Nov. 11, 2019, 10 p.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A N/A 4.8 μg/m3 (20) 20.0
 
Nov. 11, 2019, 9 p.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A N/A 3.8 μg/m3 (16) 18.0
 
Nov. 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (16) 16.0
 
Nov. 11, 2019, 7 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) N/A N/A 4.7 μg/m3 (20) 20.0
 
Nov. 11, 2019, 6 p.m. N/A 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 5.6 μg/m3 (23) 23.0
 
Nov. 11, 2019, 5 p.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 6.2 μg/m3 (26) 26.0
 
Nov. 11, 2019, 4 p.m. N/A 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) N/A N/A 5.5 μg/m3 (23) 23.0
 
Nov. 11, 2019, 3 p.m. N/A 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) N/A N/A 3.5 μg/m3 (15) 17.0
 
Nov. 11, 2019, 2 p.m. N/A 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A N/A 3.1 μg/m3 (13) 19.0
 
Nov. 11, 2019, 1 p.m. N/A -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) N/A N/A 2.6 μg/m3 (11) 21.0
 
Nov. 11, 2019, noon N/A 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A N/A 3.4 μg/m3 (14) 20.0
 
Nov. 11, 2019, 11 a.m. N/A -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A 4.6 μg/m3 (19) 19.0
 
Nov. 11, 2019, 10 a.m. N/A 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A 5.9 μg/m3 (25) 25.0
 
Nov. 11, 2019, 9 a.m. N/A -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A 5.6 μg/m3 (23) 23.0
 
Nov. 11, 2019, 8 a.m. N/A 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 2.3 μg/m3 (10) 17.0
 
Nov. 11, 2019, 7 a.m. N/A -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A N/A 21.8 μg/m3 (71) 71.0
 
Nov. 11, 2019, 6 a.m. N/A -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) N/A N/A 11.6 μg/m3 (48) 48.0
 
Nov. 11, 2019, 5 a.m. N/A 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 10.3 μg/m3 (43) 43.0
 
Nov. 11, 2019, 4 a.m. N/A -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A 8.7 μg/m3 (36) 36.0
 
Nov. 11, 2019, 3 a.m. N/A -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) N/A N/A 9.4 μg/m3 (39) 39.0
 
Nov. 11, 2019, 2 a.m. N/A 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 10.1 μg/m3 (42) 42.0
 
Nov. 11, 2019, 1 a.m. N/A -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A N/A 7.8 μg/m3 (32) 32.0
 
Nov. 11, 2019, midnight N/A -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A N/A 3.4 μg/m3 (14) 18.0
 
Nov. 10, 2019, 11 p.m. N/A -0.3 ppb (0) N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A 0.8 μg/m3 (3) 21.0
 
Nov. 10, 2019, 10 p.m. N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 1.0 μg/m3 (4) 21.0
 
Nov. 10, 2019, 9 p.m. N/A -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 1.0 μg/m3 (4) 21.0