AQSQID: 490494001

Site Name: Lindon

Location: Lindon (Battle Creek), UT

Reporting: True, Located: True

Current AQI: 33.0

Lindon (Battle Creek) UT, US: 40.3414, -111.7136

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 24, 2020, 10 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 33.0
 
Feb. 24, 2020, 9 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 26.0
 
Feb. 24, 2020, 8 a.m. 4.3 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 27.0
 
Feb. 24, 2020, 7 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 25.0
 
Feb. 24, 2020, 6 a.m. 5.4 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 26.0
 
Feb. 24, 2020, 5 a.m. 6.7 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 25.0
 
Feb. 24, 2020, 4 a.m. 7.5 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 5.7 μg/m3 (24) 26.0
 
Feb. 24, 2020, 3 a.m. 17.2 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) 0.2 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
Feb. 24, 2020, 2 a.m. 18.8 ppb (17) 0.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 20.0 ppb (15) 0.2 ppb (2) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 24, 2020, 1 a.m. 14.1 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 31.0 ppb (24) 0.2 ppb (2) N/A 6.1 μg/m3 (25) 25.0
 
Feb. 24, 2020, midnight 8.2 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) 0.1 ppb (1) N/A 5.7 μg/m3 (24) 32.0
 
Feb. 23, 2020, 11 p.m. 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (33) 0.1 ppb (1) N/A 6.3 μg/m3 (26) 33.0
 
Feb. 23, 2020, 10 p.m. 7.6 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (33) 0.1 ppb (1) N/A 6.9 μg/m3 (29) 33.0
 
Feb. 23, 2020, 9 p.m. 7.5 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (33) 0.1 ppb (1) N/A 7.5 μg/m3 (31) 33.0
 
Feb. 23, 2020, 8 p.m. 10.2 ppb (9) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) 0.1 ppb (1) N/A 10.3 μg/m3 (43) 43.0
 
Feb. 23, 2020, 7 p.m. 11.7 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A 39.0 ppb (30) 0.1 ppb (1) N/A 12.3 μg/m3 (51) 51.0
 
Feb. 23, 2020, 6 p.m. 11.3 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 11.1 μg/m3 (46) 46.0
 
Feb. 23, 2020, 5 p.m. 10.0 ppb (9) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 8.9 μg/m3 (37) 37.0
 
Feb. 23, 2020, 4 p.m. 12.7 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (9) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 23, 2020, 3 p.m. 27.5 ppb (25) 7.1 ppb (7) N/A 20.0 ppb (19) N/A N/A 19.0 ppb (15) 0.2 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Feb. 23, 2020, 2 p.m. 28.4 ppb (26) 3.5 ppb (3) N/A 25.0 ppb (23) N/A N/A 13.0 ppb (10) 0.2 ppb (2) N/A 13.2 μg/m3 (53) 53.0
 
Feb. 23, 2020, 1 p.m. 27.1 ppb (25) 1.4 ppb (1) N/A 26.0 ppb (24) N/A N/A 9.0 ppb (7) 0.3 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Feb. 23, 2020, noon 24.6 ppb (23) 1.0 ppb (1) N/A 24.0 ppb (22) N/A N/A 12.0 ppb (9) 0.3 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
Feb. 23, 2020, 11 a.m. 23.5 ppb (22) 1.0 ppb (1) N/A 23.0 ppb (21) N/A N/A 17.0 ppb (13) 0.2 ppb (2) N/A 18.7 μg/m3 (64) 64.0
 
Feb. 23, 2020, 10 a.m. 29.5 ppb (27) 1.4 ppb (1) N/A 28.0 ppb (26) N/A N/A 12.0 ppb (9) 0.3 ppb (3) N/A 20.4 μg/m3 (68) 68.0
 
Feb. 23, 2020, 9 a.m. 39.4 ppb (36) 2.8 ppb (3) N/A 37.0 ppb (34) N/A N/A 4.0 ppb (3) 0.4 ppb (4) N/A 19.9 μg/m3 (67) 67.0
 
Feb. 23, 2020, 8 a.m. 44.6 ppb (41) 7.2 ppb (7) N/A 37.0 ppb (34) N/A N/A 2.0 ppb (2) 0.4 ppb (4) N/A 21.1 μg/m3 (69) 69.0
 
Feb. 23, 2020, 7 a.m. 46.3 ppb (43) 5.5 ppb (5) N/A 41.0 ppb (38) N/A N/A 2.0 ppb (2) 0.4 ppb (4) N/A 20.4 μg/m3 (68) 68.0
 
Feb. 23, 2020, 6 a.m. 34.4 ppb (32) 1.6 ppb (1) N/A 33.0 ppb (31) N/A N/A 8.0 ppb (6) 0.4 ppb (4) N/A 18.2 μg/m3 (63) 63.0
 
Feb. 23, 2020, 5 a.m. 37.8 ppb (35) 2.1 ppb (2) N/A 36.0 ppb (33) N/A N/A 5.0 ppb (4) 0.4 ppb (4) N/A 19.5 μg/m3 (66) 66.0
 
Feb. 23, 2020, 4 a.m. 40.1 ppb (37) 4.0 ppb (4) N/A 36.0 ppb (33) N/A N/A 5.0 ppb (4) 0.4 ppb (4) N/A 21.4 μg/m3 (70) 70.0
 
Feb. 23, 2020, 3 a.m. 40.1 ppb (37) 2.6 ppb (2) N/A 37.0 ppb (34) N/A N/A 6.0 ppb (5) 0.4 ppb (4) N/A 20.1 μg/m3 (67) 67.0
 
Feb. 23, 2020, 2 a.m. 31.3 ppb (29) 0.9 ppb (1) N/A 31.0 ppb (29) N/A N/A 13.0 ppb (10) 0.4 ppb (4) N/A 19.1 μg/m3 (65) 65.0
 
Feb. 23, 2020, 1 a.m. 27.5 ppb (25) 0.6 ppb (1) N/A 27.0 ppb (25) N/A N/A 19.0 ppb (15) 0.3 ppb (3) N/A 17.4 μg/m3 (61) 61.0
 
Feb. 23, 2020, midnight 26.5 ppb (25) 1.6 ppb (1) N/A 25.0 ppb (23) N/A N/A 23.0 ppb (18) 0.3 ppb (3) N/A 18.8 μg/m3 (64) 64.0
 
Feb. 22, 2020, 11 p.m. 25.1 ppb (23) 3.5 ppb (3) N/A 22.0 ppb (20) N/A N/A 27.0 ppb (21) 0.2 ppb (2) N/A 19.2 μg/m3 (65) 65.0
 
Feb. 22, 2020, 10 p.m. 22.4 ppb (21) 4.9 ppb (5) N/A 17.0 ppb (16) N/A N/A 30.0 ppb (23) 0.2 ppb (2) N/A 15.9 μg/m3 (58) 58.0
 
Feb. 22, 2020, 9 p.m. 21.4 ppb (20) 5.7 ppb (5) N/A 16.0 ppb (15) N/A N/A 35.0 ppb (27) 0.2 ppb (2) N/A 17.4 μg/m3 (61) 61.0
 
Feb. 22, 2020, 8 p.m. 21.5 ppb (20) 6.5 ppb (6) N/A 15.0 ppb (14) N/A N/A 31.0 ppb (24) 0.2 ppb (2) N/A 14.6 μg/m3 (56) 56.0
 
Feb. 22, 2020, 7 p.m. 29.2 ppb (27) 10.4 ppb (10) N/A 19.0 ppb (18) N/A N/A 25.0 ppb (19) 0.3 ppb (3) N/A 16.9 μg/m3 (60) 60.0
 
Feb. 22, 2020, 6 p.m. 30.4 ppb (28) 10.3 ppb (10) N/A 20.0 ppb (19) N/A N/A 23.0 ppb (18) 0.2 ppb (2) N/A 16.3 μg/m3 (59) 59.0
 
Feb. 22, 2020, 5 p.m. 27.1 ppb (25) 10.0 ppb (9) N/A 17.0 ppb (16) N/A N/A 25.0 ppb (19) 0.2 ppb (2) N/A 14.6 μg/m3 (56) 56.0
 
Feb. 22, 2020, 4 p.m. 25.0 ppb (23) 8.7 ppb (8) N/A 16.0 ppb (15) N/A N/A 24.0 ppb (18) 0.2 ppb (2) N/A 14.4 μg/m3 (55) 55.0
 
Feb. 22, 2020, 3 p.m. 34.0 ppb (31) 13.4 ppb (12) N/A 21.0 ppb (19) N/A N/A 13.0 ppb (10) 0.3 ppb (3) N/A 17.4 μg/m3 (61) 61.0
 
Feb. 22, 2020, 2 p.m. 35.4 ppb (33) 8.9 ppb (8) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 0.3 ppb (3) N/A 11.2 μg/m3 (47) 47.0
 
Feb. 22, 2020, 1 p.m. 35.6 ppb (33) 8.1 ppb (8) N/A 28.0 ppb (26) N/A N/A 3.0 ppb (2) 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 22, 2020, noon 27.8 ppb (26) 2.8 ppb (3) N/A 25.0 ppb (23) N/A N/A 4.0 ppb (3) 0.2 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.3 ppb (3) N/A 13.3 μg/m3 (53) 53.0
 
Feb. 22, 2020, 10 a.m. 32.2 ppb (30) 2.8 ppb (3) N/A 30.0 ppb (28) N/A N/A 4.0 ppb (3) 0.3 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
Feb. 22, 2020, 9 a.m. 37.1 ppb (34) 3.3 ppb (3) N/A 34.0 ppb (31) N/A N/A 3.0 ppb (2) 0.4 ppb (4) N/A 12.3 μg/m3 (51) 51.0
 
Feb. 22, 2020, 8 a.m. 37.3 ppb (35) 3.5 ppb (3) N/A 34.0 ppb (31) N/A N/A 3.0 ppb (2) 0.3 ppb (3) N/A 12.5 μg/m3 (51) 51.0
 
Feb. 22, 2020, 7 a.m. 32.8 ppb (30) 3.3 ppb (3) N/A 30.0 ppb (28) N/A N/A 4.0 ppb (3) 0.3 ppb (3) N/A 12.6 μg/m3 (51) 51.0
 
Feb. 22, 2020, 6 a.m. 34.8 ppb (32) 4.0 ppb (4) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) 0.4 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Feb. 22, 2020, 5 a.m. 36.3 ppb (34) 3.4 ppb (3) N/A 33.0 ppb (31) N/A N/A 6.0 ppb (5) 0.3 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
Feb. 22, 2020, 4 a.m. 41.5 ppb (38) 2.9 ppb (3) N/A 39.0 ppb (36) N/A N/A 6.0 ppb (5) 0.4 ppb (4) N/A 15.1 μg/m3 (57) 57.0
 
Feb. 22, 2020, 3 a.m. 51.1 ppb (47) 7.8 ppb (7) N/A 43.0 ppb (40) N/A N/A 5.0 ppb (4) 0.4 ppb (4) N/A 21.9 μg/m3 (71) 71.0
 
Feb. 22, 2020, 2 a.m. 55.8 ppb (52) 10.6 ppb (10) N/A 45.0 ppb (42) N/A N/A 2.0 ppb (2) 0.6 ppb (7) N/A 25.5 μg/m3 (79) 79.0
 
Feb. 22, 2020, 1 a.m. 47.6 ppb (44) 3.3 ppb (3) N/A 44.0 ppb (41) N/A N/A 7.0 ppb (5) 0.4 ppb (4) N/A 17.1 μg/m3 (61) 61.0
 
Feb. 22, 2020, midnight 38.3 ppb (35) 5.9 ppb (5) N/A 32.0 ppb (30) N/A N/A 19.0 ppb (15) 0.3 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Feb. 21, 2020, 11 p.m. 18.4 ppb (17) 3.9 ppb (4) N/A 14.0 ppb (13) N/A N/A 37.0 ppb (28) 0.1 ppb (1) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 21, 2020, 10 p.m. 17.5 ppb (16) 4.7 ppb (4) N/A 13.0 ppb (12) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 9.1 μg/m3 (38) 38.0
 
Feb. 21, 2020, 9 p.m. 16.1 ppb (15) 4.5 ppb (4) N/A 11.0 ppb (10) N/A N/A 39.0 ppb (30) 0.1 ppb (1) N/A 8.7 μg/m3 (36) 36.0
 
Feb. 21, 2020, 8 p.m. 23.1 ppb (21) 8.0 ppb (7) N/A 15.0 ppb (14) N/A N/A 35.0 ppb (27) 0.2 ppb (2) N/A 11.1 μg/m3 (46) 46.0
 
Feb. 21, 2020, 7 p.m. 20.1 ppb (19) 7.0 ppb (6) N/A 13.0 ppb (12) N/A N/A 35.0 ppb (27) 0.2 ppb (2) N/A 10.8 μg/m3 (45) 45.0
 
Feb. 21, 2020, 6 p.m. 18.0 ppb (17) 5.5 ppb (5) N/A 12.0 ppb (11) N/A N/A 36.0 ppb (28) 0.1 ppb (1) N/A 9.4 μg/m3 (39) 39.0
 
Feb. 21, 2020, 5 p.m. 19.6 ppb (18) 5.9 ppb (5) N/A 14.0 ppb (13) N/A N/A 32.0 ppb (25) 0.2 ppb (2) N/A 9.1 μg/m3 (38) 38.0
 
Feb. 21, 2020, 4 p.m. 23.8 ppb (22) 6.5 ppb (6) N/A 17.0 ppb (16) N/A N/A 26.0 ppb (20) 0.2 ppb (2) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 21, 2020, 3 p.m. 63.2 ppb (60) 31.0 ppb (29) N/A 32.0 ppb (30) N/A N/A 10.0 ppb (8) 0.6 ppb (7) N/A 9.2 μg/m3 (38) 60.0
 
Feb. 21, 2020, 2 p.m. 63.8 ppb (60) 25.0 ppb (23) N/A 39.0 ppb (36) N/A N/A 3.0 ppb (2) 0.5 ppb (6) N/A 7.6 μg/m3 (32) 60.0
 
Feb. 21, 2020, 1 p.m. 41.1 ppb (38) 7.2 ppb (7) N/A 34.0 ppb (31) N/A N/A 4.0 ppb (3) 0.3 ppb (3) N/A 6.3 μg/m3 (26) 38.0
 
Feb. 21, 2020, noon 34.4 ppb (32) 3.7 ppb (3) N/A 31.0 ppb (29) N/A N/A 5.0 ppb (4) 0.2 ppb (2) N/A 6.3 μg/m3 (26) 32.0
 
Feb. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Feb. 21, 2020, 10 a.m. 25.7 ppb (24) 1.3 ppb (1) N/A 24.0 ppb (22) N/A N/A 10.0 ppb (8) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 24.0
 
Feb. 21, 2020, 9 a.m. 22.3 ppb (21) 1.0 ppb (1) N/A 21.0 ppb (19) N/A N/A 12.0 ppb (9) 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0
 
Feb. 21, 2020, 8 a.m. 22.5 ppb (21) 0.8 ppb (1) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0
 
Feb. 21, 2020, 7 a.m. 27.9 ppb (26) 1.3 ppb (1) N/A 27.0 ppb (25) N/A N/A 11.0 ppb (8) 0.2 ppb (2) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 21, 2020, 6 a.m. 24.6 ppb (23) 1.1 ppb (1) N/A 24.0 ppb (22) N/A N/A 12.0 ppb (9) 0.2 ppb (2) N/A 9.8 μg/m3 (41) 41.0
 
Feb. 21, 2020, 5 a.m. 32.5 ppb (30) 2.4 ppb (2) N/A 30.0 ppb (28) N/A N/A 8.0 ppb (6) 0.3 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
Feb. 21, 2020, 4 a.m. 28.7 ppb (27) 1.4 ppb (1) N/A 27.0 ppb (25) N/A N/A 11.0 ppb (8) 0.3 ppb (3) N/A 10.2 μg/m3 (42) 42.0
 
Feb. 21, 2020, 3 a.m. 34.1 ppb (32) 2.3 ppb (2) N/A 32.0 ppb (30) N/A N/A 7.0 ppb (5) 0.3 ppb (3) N/A 13.8 μg/m3 (54) 54.0
 
Feb. 21, 2020, 2 a.m. 29.9 ppb (28) 0.9 ppb (1) N/A 29.0 ppb (27) N/A N/A 13.0 ppb (10) 0.3 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
Feb. 21, 2020, 1 a.m. 18.0 ppb (17) 0.2 ppb (0) N/A 18.0 ppb (17) N/A N/A 30.0 ppb (23) 0.1 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
Feb. 21, 2020, midnight 12.1 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 40.0 ppb (31) 0.1 ppb (1) N/A 6.3 μg/m3 (26) 31.0
 
Feb. 20, 2020, 11 p.m. 12.4 ppb (11) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A 40.0 ppb (31) 0.1 ppb (1) N/A 6.0 μg/m3 (25) 31.0
 
Feb. 20, 2020, 10 p.m. 11.6 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 42.0 ppb (32) 0.1 ppb (1) N/A 6.5 μg/m3 (27) 32.0
 
Feb. 20, 2020, 9 p.m. 11.7 ppb (11) 3.4 ppb (3) N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) 0.1 ppb (1) N/A 6.6 μg/m3 (28) 31.0
 
Feb. 20, 2020, 8 p.m. 11.6 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) 0.1 ppb (1) N/A 5.8 μg/m3 (24) 32.0
 
Feb. 20, 2020, 7 p.m. 12.7 ppb (12) 4.2 ppb (4) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 6.0 μg/m3 (25) 29.0
 
Feb. 20, 2020, 6 p.m. 14.4 ppb (13) 4.9 ppb (5) N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) 0.1 ppb (1) N/A 5.7 μg/m3 (24) 28.0
 
Feb. 20, 2020, 5 p.m. 16.9 ppb (16) 5.9 ppb (5) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 5.7 μg/m3 (24) 26.0
 
Feb. 20, 2020, 4 p.m. 36.2 ppb (34) 15.2 ppb (14) N/A 21.0 ppb (19) N/A N/A 24.0 ppb (18) 0.3 ppb (3) N/A 7.5 μg/m3 (31) 34.0
 
Feb. 20, 2020, 3 p.m. 42.5 ppb (39) 15.5 ppb (14) N/A 27.0 ppb (25) N/A N/A 16.0 ppb (12) 0.5 ppb (6) N/A 6.2 μg/m3 (26) 39.0
 
Feb. 20, 2020, 2 p.m. 46.3 ppb (43) 10.2 ppb (9) N/A 36.0 ppb (33) N/A N/A 7.0 ppb (5) 0.3 ppb (3) N/A 3.9 μg/m3 (16) 43.0
 
Feb. 20, 2020, 1 p.m. 37.9 ppb (35) 7.2 ppb (7) N/A 31.0 ppb (29) N/A N/A 8.0 ppb (6) 0.2 ppb (2) N/A 3.1 μg/m3 (13) 35.0
 
Feb. 20, 2020, noon 22.3 ppb (21) 1.0 ppb (1) N/A 21.0 ppb (19) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 21.0
 
Feb. 20, 2020, 11 a.m. 21.1 ppb (20) 1.1 ppb (1) N/A 20.0 ppb (19) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
Feb. 20, 2020, 10 a.m. 18.4 ppb (17) 0.9 ppb (1) N/A 17.0 ppb (16) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 20, 2020, 9 a.m. 19.5 ppb (18) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 6.9 μg/m3 (29) 29.0
 
Feb. 20, 2020, 8 a.m. 13.9 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 10.2 μg/m3 (42) 42.0
 
Feb. 20, 2020, 7 a.m. 12.3 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Feb. 20, 2020, 6 a.m. 18.3 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (16) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 8.1 μg/m3 (34) 34.0
 
Feb. 20, 2020, 5 a.m. 19.5 ppb (18) 0.7 ppb (1) N/A 19.0 ppb (18) N/A N/A 19.0 ppb (15) 0.2 ppb (2) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 20, 2020, 4 a.m. 22.8 ppb (21) 0.7 ppb (1) N/A 22.0 ppb (20) N/A N/A 16.0 ppb (12) 0.2 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
Feb. 20, 2020, 3 a.m. 26.1 ppb (24) 0.8 ppb (1) N/A 25.0 ppb (23) N/A N/A 15.0 ppb (12) 0.2 ppb (2) N/A 7.6 μg/m3 (32) 32.0
 
Feb. 20, 2020, 2 a.m. 16.7 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 26.0 ppb (20) 0.2 ppb (2) N/A 6.4 μg/m3 (27) 27.0
 
Feb. 20, 2020, 1 a.m. 13.5 ppb (12) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) 0.1 ppb (1) N/A 5.5 μg/m3 (23) 24.0
 
Feb. 20, 2020, midnight 10.5 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 5.5 μg/m3 (23) 27.0
 
Feb. 19, 2020, 11 p.m. 8.4 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 37.0 ppb (28) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 28.0
 
Feb. 19, 2020, 10 p.m. 7.5 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 30.0
 
Feb. 19, 2020, 9 p.m. 8.9 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.1 ppb (1) N/A 5.5 μg/m3 (23) 30.0
 
Feb. 19, 2020, 8 p.m. 15.7 ppb (15) 5.3 ppb (5) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 9.6 μg/m3 (40) 40.0
 
Feb. 19, 2020, 7 p.m. 17.6 ppb (16) 6.2 ppb (6) N/A 11.0 ppb (10) N/A N/A 32.0 ppb (25) 0.1 ppb (1) N/A 14.9 μg/m3 (56) 56.0
 
Feb. 19, 2020, 6 p.m. 14.8 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) 0.1 ppb (1) N/A 14.8 μg/m3 (56) 56.0
 
Feb. 19, 2020, 5 p.m. 14.1 ppb (13) 4.6 ppb (4) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.1 ppb (1) N/A 14.4 μg/m3 (55) 55.0
 
Feb. 19, 2020, 4 p.m. 28.2 ppb (26) 10.6 ppb (10) N/A 17.0 ppb (16) N/A N/A 25.0 ppb (19) 0.2 ppb (2) N/A 13.8 μg/m3 (54) 54.0
 
Feb. 19, 2020, 3 p.m. 46.2 ppb (43) 19.9 ppb (18) N/A 26.0 ppb (24) N/A N/A 12.0 ppb (9) 0.5 ppb (6) N/A 13.8 μg/m3 (54) 54.0
 
Feb. 19, 2020, 2 p.m. 49.2 ppb (46) 17.1 ppb (16) N/A 32.0 ppb (30) N/A N/A 3.0 ppb (2) 0.4 ppb (4) N/A 12.9 μg/m3 (52) 52.0
 
Feb. 19, 2020, 1 p.m. 36.9 ppb (34) 6.4 ppb (6) N/A 31.0 ppb (29) N/A N/A 3.0 ppb (2) 0.2 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
Feb. 19, 2020, noon 28.8 ppb (27) 3.9 ppb (4) N/A 25.0 ppb (23) N/A N/A 7.0 ppb (5) 0.2 ppb (2) N/A 7.7 μg/m3 (32) 32.0
 
Feb. 19, 2020, 11 a.m. 23.2 ppb (21) 1.1 ppb (1) N/A 22.0 ppb (20) N/A N/A 9.0 ppb (7) 0.1 ppb (1) N/A 5.7 μg/m3 (24) 24.0
 
Feb. 19, 2020, 10 a.m. 20.8 ppb (19) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (8) 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0
 
Feb. 19, 2020, 9 a.m. 16.9 ppb (16) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Feb. 19, 2020, 8 a.m. 14.4 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Feb. 19, 2020, 7 a.m. 26.9 ppb (25) 1.4 ppb (1) N/A 26.0 ppb (24) N/A N/A 10.0 ppb (8) 0.2 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
Feb. 19, 2020, 6 a.m. 25.7 ppb (24) 1.3 ppb (1) N/A 24.0 ppb (22) N/A N/A 9.0 ppb (7) 0.2 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
Feb. 19, 2020, 5 a.m. 31.7 ppb (29) 2.4 ppb (2) N/A 29.0 ppb (27) N/A N/A 8.0 ppb (6) 0.2 ppb (2) N/A 12.2 μg/m3 (50) 50.0
 
Feb. 19, 2020, 4 a.m. 37.2 ppb (34) 3.4 ppb (3) N/A 34.0 ppb (31) N/A N/A 6.0 ppb (5) 0.3 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
Feb. 19, 2020, 3 a.m. 24.9 ppb (23) 0.5 ppb (0) N/A 24.0 ppb (22) N/A N/A 15.0 ppb (12) 0.2 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
Feb. 19, 2020, 2 a.m. 21.9 ppb (20) 0.3 ppb (0) N/A 21.0 ppb (19) N/A N/A 20.0 ppb (15) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 19, 2020, 1 a.m. 15.8 ppb (15) 0.3 ppb (0) N/A 15.0 ppb (14) N/A N/A 29.0 ppb (22) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 22.0
 
Feb. 19, 2020, midnight 12.9 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 26.0
 
Feb. 18, 2020, 11 p.m. 9.0 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 4.7 μg/m3 (20) 29.0
 
Feb. 18, 2020, 10 p.m. 7.9 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 30.0
 
Feb. 18, 2020, 9 p.m. 6.4 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 31.0
 
Feb. 18, 2020, 8 p.m. 6.4 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 31.0
 
Feb. 18, 2020, 7 p.m. 7.5 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 6.0 μg/m3 (25) 29.0
 
Feb. 18, 2020, 6 p.m. 8.9 ppb (8) 3.2 ppb (3) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 7.5 μg/m3 (31) 31.0
 
Feb. 18, 2020, 5 p.m. 9.8 ppb (9) 3.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 9.1 μg/m3 (38) 38.0
 
Feb. 18, 2020, 4 p.m. 7.2 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 5.3 μg/m3 (22) 26.0
 
Feb. 18, 2020, 3 p.m. 12.8 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (9) N/A N/A 29.0 ppb (22) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 22.0
 
Feb. 18, 2020, 2 p.m. 21.9 ppb (20) 2.7 ppb (3) N/A 19.0 ppb (18) N/A N/A 17.0 ppb (13) 0.2 ppb (2) N/A 3.5 μg/m3 (15) 20.0
 
Feb. 18, 2020, 1 p.m. 10.0 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 21.0
 
Feb. 18, 2020, noon 16.7 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
Feb. 18, 2020, 11 a.m. 16.9 ppb (16) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 16.0
 
Feb. 18, 2020, 10 a.m. 16.5 ppb (15) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 15.0
 
Feb. 18, 2020, 9 a.m. 11.2 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
Feb. 18, 2020, 8 a.m. 8.3 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.1 ppb (1) N/A 3.9 μg/m3 (16) 22.0
 
Feb. 18, 2020, 7 a.m. 8.1 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 18.0
 
Feb. 18, 2020, 6 a.m. 6.3 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 23.0
 
Feb. 18, 2020, 5 a.m. 6.0 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 25.0
 
Feb. 18, 2020, 4 a.m. 4.4 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 28.0
 
Feb. 18, 2020, 3 a.m. 5.9 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 27.0
 
Feb. 18, 2020, 2 a.m. 6.9 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 27.0
 
Feb. 18, 2020, 1 a.m. 5.0 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 30.0
 
Feb. 18, 2020, midnight 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 32.0
 
Feb. 17, 2020, 11 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 35.0
 
Feb. 17, 2020, 10 p.m. 3.5 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 34.0
 
Feb. 17, 2020, 9 p.m. 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 34.0
 
Feb. 17, 2020, 8 p.m. 3.6 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 33.0
 
Feb. 17, 2020, 7 p.m. 5.4 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 32.0
 
Feb. 17, 2020, 6 p.m. 3.4 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.0 ppb (0) N/A 1.3 μg/m3 (5) 33.0
 
Feb. 17, 2020, 5 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 32.0
 
Feb. 17, 2020, 4 p.m. 5.2 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 30.0
 
Feb. 17, 2020, 3 p.m. 6.5 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.0 ppb (0) N/A 1.3 μg/m3 (5) 27.0
 
Feb. 17, 2020, 2 p.m. 7.7 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 25.0
 
Feb. 17, 2020, 1 p.m. 6.9 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 26.0
 
Feb. 17, 2020, noon 4.2 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 27.0
 
Feb. 17, 2020, 11 a.m. 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0