AQSQID: 481410037

Site Name: El Paso Utep C12

Location: El Paso City Limits, TX

Reporting: True, Located: True

Current AQI: 32.0

El Paso City Limits TX, US: 31.768056, -106.501111

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 26.0 μg/m3 (24) 5.9 μg/m3 (25) 32.0
 
Jan. 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 35.0 μg/m3 (32) 5.4 μg/m3 (23) 32.0
 
Jan. 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 6.6 μg/m3 (28) 28.0
 
Jan. 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 21.0 μg/m3 (19) 5.6 μg/m3 (23) 31.0
 
Jan. 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 17.0 μg/m3 (15) 4.5 μg/m3 (19) 32.0
 
Jan. 22, 2019, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 32.0
 
Jan. 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 19.0 μg/m3 (17) 3.6 μg/m3 (15) 31.0
 
Jan. 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 24.0 μg/m3 (22) 4.3 μg/m3 (18) 32.0
 
Jan. 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 24.0 μg/m3 (22) 4.3 μg/m3 (18) 32.0
 
Jan. 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 26.0 μg/m3 (24) 6.2 μg/m3 (26) 29.0
 
Jan. 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 36.0 μg/m3 (33) 7.8 μg/m3 (32) 33.0
 
Jan. 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 48.0 μg/m3 (44) 9.4 μg/m3 (39) 44.0
 
Jan. 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 102.0 μg/m3 (74) 13.8 μg/m3 (54) 74.0
 
Jan. 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 64.0 μg/m3 (54) 8.0 μg/m3 (33) 54.0
 
Jan. 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 53.0 μg/m3 (48) 7.3 μg/m3 (30) 48.0
 
Jan. 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 94.0 μg/m3 (70) 11.0 μg/m3 (46) 70.0
 
Jan. 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 92.0 μg/m3 (68) 10.3 μg/m3 (43) 68.0
 
Jan. 22, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 252.0 μg/m3 (148) 20.5 μg/m3 (68) 148.0
 
Jan. 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 186.0 μg/m3 (116) 15.5 μg/m3 (57) 116.0
 
Jan. 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 156.0 μg/m3 (100) 12.7 μg/m3 (51) 100.0
 
Jan. 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 157.0 μg/m3 (101) 7.9 μg/m3 (33) 101.0
 
Jan. 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 52.0 μg/m3 (47) 7.8 μg/m3 (32) 47.0
 
Jan. 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 34.0 μg/m3 (31) 1.8 μg/m3 (8) 31.0
 
Jan. 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 37.0 μg/m3 (34) 3.6 μg/m3 (15) 34.0
 
Jan. 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 99.0 μg/m3 (72) 19.5 μg/m3 (66) 72.0
 
Jan. 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 86.0 μg/m3 (66) 20.5 μg/m3 (68) 68.0
 
Jan. 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 50.0 μg/m3 (45) 12.5 μg/m3 (51) 51.0
 
Jan. 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 34.0 μg/m3 (31) 8.3 μg/m3 (35) 35.0
 
Jan. 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 29.0 μg/m3 (26) 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 39.0 μg/m3 (35) 11.7 μg/m3 (49) 49.0
 
Jan. 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 34.0 μg/m3 (31) 11.5 μg/m3 (48) 48.0
 
Jan. 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 42.0 μg/m3 (38) 12.3 μg/m3 (51) 51.0
 
Jan. 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 39.0 μg/m3 (35) 11.9 μg/m3 (50) 50.0
 
Jan. 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 47.0 μg/m3 (43) 14.0 μg/m3 (54) 54.0
 
Jan. 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 46.0 μg/m3 (42) 12.8 μg/m3 (52) 52.0
 
Jan. 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 65.0 μg/m3 (55) 18.0 μg/m3 (63) 63.0
 
Jan. 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 87.0 μg/m3 (66) 24.6 μg/m3 (77) 77.0
 
Jan. 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 70.0 μg/m3 (58) 19.8 μg/m3 (67) 67.0
 
Jan. 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 62.0 μg/m3 (54) 16.3 μg/m3 (59) 59.0
 
Jan. 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 98.0 μg/m3 (72) 27.6 μg/m3 (83) 83.0
 
Jan. 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 51.0 μg/m3 (46) 13.3 μg/m3 (53) 53.0
 
Jan. 21, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 17.0 μg/m3 (15) 4.7 μg/m3 (20) 27.0
 
Jan. 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 12.0 μg/m3 (11) 2.4 μg/m3 (10) 32.0
 
Jan. 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 13.0 μg/m3 (12) 2.4 μg/m3 (10) 33.0
 
Jan. 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 17.0 μg/m3 (15) 2.7 μg/m3 (11) 32.0
 
Jan. 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 13.0 μg/m3 (12) 2.3 μg/m3 (10) 33.0
 
Jan. 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 21.0 μg/m3 (19) 4.1 μg/m3 (17) 30.0
 
Jan. 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 18.0 μg/m3 (16) 3.3 μg/m3 (14) 25.0
 
Jan. 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 23.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 33.0 μg/m3 (30) 13.0 μg/m3 (52) 52.0
 
Jan. 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 29.0 μg/m3 (26) 10.7 μg/m3 (45) 45.0
 
Jan. 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 16.0 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
Jan. 20, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 16.0 μg/m3 (15) 5.1 μg/m3 (21) 21.0
 
Jan. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 31.0 μg/m3 (28) 10.4 μg/m3 (43) 43.0
 
Jan. 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (22) 9.9 μg/m3 (41) 41.0
 
Jan. 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 19.0 μg/m3 (17) 7.2 μg/m3 (30) 30.0
 
Jan. 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
Jan. 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 21.0 μg/m3 (19) 8.4 μg/m3 (35) 35.0
 
Jan. 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 17.0 μg/m3 (15) 6.6 μg/m3 (28) 28.0
 
Jan. 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 14.0 μg/m3 (13) 5.2 μg/m3 (22) 22.0
 
Jan. 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
Jan. 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 28.0
 
Jan. 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
Jan. 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 66.0 μg/m3 (56) 18.9 μg/m3 (65) 65.0
 
Jan. 20, 2019, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 29.0 μg/m3 (26) 6.5 μg/m3 (27) 27.0
 
Jan. 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 33.0
 
Jan. 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 6.8 μg/m3 (28) 35.0
 
Jan. 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 8.0 μg/m3 (7) 2.2 μg/m3 (9) 35.0
 
Jan. 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 35.0
 
Jan. 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 24.0 μg/m3 (22) 4.8 μg/m3 (20) 30.0
 
Jan. 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 20.0 μg/m3 (18) 3.6 μg/m3 (15) 22.0
 
Jan. 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 30.0 μg/m3 (27) 9.7 μg/m3 (40) 40.0
 
Jan. 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 23.0 μg/m3 (21) 7.5 μg/m3 (31) 31.0
 
Jan. 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
Jan. 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 16.0 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
Jan. 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 21.0 μg/m3 (19) 6.7 μg/m3 (28) 28.0
 
Jan. 19, 2019, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 20.0 μg/m3 (18) 7.3 μg/m3 (30) 30.0
 
Jan. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 18.0 μg/m3 (16) 5.3 μg/m3 (22) 22.0
 
Jan. 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 20.0 μg/m3 (18) 6.8 μg/m3 (28) 28.0
 
Jan. 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 5.2 μg/m3 (22) 28.0
 
Jan. 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 10.0 μg/m3 (9) 4.4 μg/m3 (18) 30.0
 
Jan. 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 33.0
 
Jan. 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 23.0 μg/m3 (21) 4.9 μg/m3 (20) 35.0
 
Jan. 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 16.0 μg/m3 (15) 4.5 μg/m3 (19) 32.0
 
Jan. 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 29.0 μg/m3 (26) 5.2 μg/m3 (22) 31.0
 
Jan. 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 31.0 μg/m3 (28) 6.5 μg/m3 (27) 29.0
 
Jan. 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 35.0 μg/m3 (32) 5.9 μg/m3 (25) 32.0
 
Jan. 19, 2019, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 48.0 μg/m3 (44) 7.5 μg/m3 (31) 44.0
 
Jan. 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 67.0 μg/m3 (56) 6.9 μg/m3 (29) 56.0
 
Jan. 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 91.0 μg/m3 (68) 11.5 μg/m3 (48) 68.0
 
Jan. 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 166.0 μg/m3 (106) 14.7 μg/m3 (56) 106.0
 
Jan. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 218.0 μg/m3 (132) 12.6 μg/m3 (51) 132.0
 
Jan. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 118.0 μg/m3 (82) 6.5 μg/m3 (27) 82.0
 
Jan. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 357.0 μg/m3 (203) 11.6 μg/m3 (48) 203.0
 
Jan. 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 154.0 μg/m3 (100) 6.3 μg/m3 (26) 100.0
 
Jan. 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 28.0 μg/m3 (25) 7.3 μg/m3 (30) 30.0
 
Jan. 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 21.0 μg/m3 (19) 6.1 μg/m3 (25) 25.0
 
Jan. 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 18.0 μg/m3 (16) 5.5 μg/m3 (23) 23.0
 
Jan. 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
Jan. 18, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 5.2 μg/m3 (22) 22.0
 
Jan. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.0 μg/m3 (12) 3.3 μg/m3 (14) 18.0
 
Jan. 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 3.5 μg/m3 (15) 18.0
 
Jan. 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 13.0 μg/m3 (12) 4.2 μg/m3 (18) 18.0
 
Jan. 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 14.0 μg/m3 (13) 4.3 μg/m3 (18) 18.0
 
Jan. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 15.0 μg/m3 (14) 4.1 μg/m3 (17) 17.0
 
Jan. 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 28.0 μg/m3 (25) 8.2 μg/m3 (34) 34.0
 
Jan. 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 59.0 μg/m3 (52) 17.3 μg/m3 (61) 61.0
 
Jan. 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 61.0 μg/m3 (53) 16.7 μg/m3 (60) 60.0
 
Jan. 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 52.0 μg/m3 (47) 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 19.0 μg/m3 (17) 5.6 μg/m3 (23) 23.0
 
Jan. 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 43.0 μg/m3 (39) 9.3 μg/m3 (39) 39.0
 
Jan. 18, 2019, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 45.0 μg/m3 (41) 9.3 μg/m3 (39) 41.0
 
Jan. 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 42.0 μg/m3 (38) 8.0 μg/m3 (33) 38.0
 
Jan. 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 34.0 μg/m3 (31) 6.6 μg/m3 (28) 32.0
 
Jan. 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 35.0 μg/m3 (32) 6.2 μg/m3 (26) 32.0
 
Jan. 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 23.0 μg/m3 (21) 4.4 μg/m3 (18) 24.0
 
Jan. 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 36.0 μg/m3 (33) 5.2 μg/m3 (22) 33.0
 
Jan. 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 55.0 μg/m3 (50) 11.2 μg/m3 (47) 50.0
 
Jan. 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 40.0 μg/m3 (36) 10.7 μg/m3 (45) 45.0
 
Jan. 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 24.0 μg/m3 (22) 6.9 μg/m3 (29) 29.0
 
Jan. 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 34.0 μg/m3 (31) 8.6 μg/m3 (36) 36.0
 
Jan. 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 25.0 μg/m3 (23) 6.5 μg/m3 (27) 27.0
 
Jan. 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 18.0 μg/m3 (16) 5.8 μg/m3 (24) 24.0
 
Jan. 17, 2019, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 14.0 μg/m3 (13) 5.6 μg/m3 (23) 23.0
 
Jan. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 15.0 μg/m3 (14) 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 15.0 μg/m3 (14) 5.3 μg/m3 (22) 22.0
 
Jan. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 11.0 μg/m3 (10) 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 4.2 μg/m3 (18) 25.0
 
Jan. 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 3.9 μg/m3 (16) 25.0
 
Jan. 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 24.0
 
Jan. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 4.7 μg/m3 (20) 20.0
 
Jan. 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 20.0
 
Jan. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 20.0 μg/m3 (18) 7.3 μg/m3 (30) 30.0
 
Jan. 17, 2019, midnight N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 41.0 μg/m3 (37) 9.5 μg/m3 (40) 40.0
 
Jan. 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 30.0 μg/m3 (27) 5.7 μg/m3 (24) 27.0
 
Jan. 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 16.0 μg/m3 (15) 3.6 μg/m3 (15) 25.0
 
Jan. 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 16.0 μg/m3 (15) 3.8 μg/m3 (16) 24.0
 
Jan. 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 21.0 μg/m3 (19) 3.8 μg/m3 (16) 23.0
 
Jan. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 29.0 μg/m3 (26) 2.9 μg/m3 (12) 26.0
 
Jan. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 18.0 μg/m3 (16) 4.5 μg/m3 (19) 21.0
 
Jan. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 33.0 μg/m3 (30) 8.6 μg/m3 (36) 36.0
 
Jan. 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 50.0 μg/m3 (45) 12.8 μg/m3 (52) 52.0
 
Jan. 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 37.0 μg/m3 (34) 9.6 μg/m3 (40) 40.0
 
Jan. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 21.0 μg/m3 (19) 6.5 μg/m3 (27) 27.0
 
Jan. 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2019, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 40.0 μg/m3 (36) 11.2 μg/m3 (47) 47.0
 
Jan. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 63.0 μg/m3 (54) 16.7 μg/m3 (60) 60.0
 
Jan. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 49.0 μg/m3 (45) 12.8 μg/m3 (52) 52.0
 
Jan. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 46.0 μg/m3 (42) 10.9 μg/m3 (45) 45.0
 
Jan. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 88.0 μg/m3 (66) 19.7 μg/m3 (66) 66.0
 
Jan. 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 159.0 μg/m3 (102) 45.0 μg/m3 (124) 124.0
 
Jan. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 106.0 μg/m3 (76) 26.6 μg/m3 (81) 81.0
 
Jan. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 131.0 μg/m3 (88) 35.9 μg/m3 (101) 101.0
 
Jan. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 55.0 μg/m3 (50) 12.8 μg/m3 (52) 52.0
 
Jan. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 122.0 μg/m3 (84) 35.4 μg/m3 (100) 100.0
 
Jan. 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 85.0 μg/m3 (65) 18.0 μg/m3 (63) 65.0
 
Jan. 16, 2019, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 20.0 μg/m3 (18) 6.4 μg/m3 (27) 27.0
 
Jan. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 17.0 μg/m3 (15) 5.3 μg/m3 (22) 29.0
 
Jan. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 16.0 μg/m3 (15) 4.3 μg/m3 (18) 32.0
 
Jan. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 34.0 μg/m3 (31) 7.4 μg/m3 (31) 31.0
 
Jan. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 42.0 μg/m3 (38) 10.2 μg/m3 (42) 42.0
 
Jan. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 21.0 μg/m3 (19) 5.6 μg/m3 (23) 23.0