AQSQID: 060250005

Site Name: Calexico - Ethel Street

Location: Calexico (Andrade Ave), CA

Reporting: True, Located: True

Current AQI: 29.0

Calexico (Andrade Ave) CA, US: 32.67618, -115.48307

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2020, noon 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
 
Jan. 22, 2020, 11 a.m. 18.4 ppb (17) 3.1 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (7) 0.24 ppb (3) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 10 a.m. 18.3 ppb (17) 3.0 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 6.0 ppb (5) 0.26 ppb (3) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 9 a.m. 18.7 ppb (17) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 7.0 ppb (5) 0.24 ppb (3) 19.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
Jan. 22, 2020, 8 a.m. 15.8 ppb (15) 2.9 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (8) 0.23 ppb (3) 21.0 μg/m3 (19) 4.0 μg/m3 (17) 19.0
 
Jan. 22, 2020, 7 a.m. 13.4 ppb (12) 2.6 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (14) 0.17 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 6 a.m. 16.5 ppb (15) 2.5 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) 32.0 μg/m3 (29) 11.0 μg/m3 (46) 46.0
 
Jan. 22, 2020, 5 a.m. 17.4 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) 0.27 ppb (3) 28.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
Jan. 22, 2020, 4 a.m. 10.8 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Jan. 22, 2020, 3 a.m. 17.0 ppb (16) 3.2 ppb (3) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 29.0 ppb (22) 0.23 ppb (3) 30.0 μg/m3 (27) 9.0 μg/m3 (38) 38.0
 
Jan. 22, 2020, 2 a.m. 30.2 ppb (28) 5.0 ppb (5) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 15.0 ppb (12) 0.36 ppb (4) 47.0 μg/m3 (43) 9.0 μg/m3 (38) 43.0
 
Jan. 22, 2020, 1 a.m. 20.0 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 23.0 ppb (18) 0.26 ppb (3) 53.0 μg/m3 (48) 6.0 μg/m3 (25) 48.0
 
Jan. 22, 2020, midnight 14.0 ppb (13) 4.4 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 36.0 ppb (28) 0.17 ppb (2) 33.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
Jan. 21, 2020, 11 p.m. 12.6 ppb (12) 3.7 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 40.0 ppb (31) 0.19 ppb (2) 26.0 μg/m3 (24) 7.0 μg/m3 (29) 31.0
 
Jan. 21, 2020, 10 p.m. 10.3 ppb (10) 3.2 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 42.0 ppb (32) 0.14 ppb (2) 20.0 μg/m3 (18) 4.0 μg/m3 (17) 32.0
 
Jan. 21, 2020, 9 p.m. 10.0 ppb (9) 3.5 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) 0.13 ppb (1) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 32.0
 
Jan. 21, 2020, 8 p.m. 12.0 ppb (11) 4.6 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 38.0 ppb (29) 0.13 ppb (1) 20.0 μg/m3 (18) 6.0 μg/m3 (25) 29.0
 
Jan. 21, 2020, 7 p.m. 13.6 ppb (13) 5.3 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 36.0 ppb (28) 0.14 ppb (2) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 28.0
 
Jan. 21, 2020, 6 p.m. 19.1 ppb (18) 7.5 ppb (7) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 30.0 ppb (23) 0.16 ppb (2) 26.0 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 5 p.m. 21.2 ppb (20) 8.0 ppb (7) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) 30.0 μg/m3 (27) 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 4 p.m. 42.6 ppb (39) 20.3 ppb (19) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 10.0 ppb (8) 0.37 ppb (4) 38.0 μg/m3 (35) 15.0 μg/m3 (56) 56.0
 
Jan. 21, 2020, 3 p.m. 46.1 ppb (43) 21.7 ppb (20) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 3.0 ppb (2) 0.5 ppb (6) 45.0 μg/m3 (41) 16.0 μg/m3 (59) 59.0
 
Jan. 21, 2020, 2 p.m. 34.4 ppb (32) 14.0 ppb (13) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 3.0 ppb (2) 0.4 ppb (4) 44.0 μg/m3 (40) 21.0 μg/m3 (69) 69.0
 
Jan. 21, 2020, 1 p.m. 14.9 ppb (14) 3.8 ppb (4) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 7.0 ppb (5) 0.29 ppb (3) 42.0 μg/m3 (38) 22.0 μg/m3 (71) 71.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (58) 31.0 μg/m3 (90) 90.0
 
Jan. 21, 2020, 11 a.m. 34.5 ppb (32) 17.8 ppb (16) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 1.0 ppb (1) 0.52 ppb (6) 91.0 μg/m3 (68) 33.0 μg/m3 (95) 95.0
 
Jan. 21, 2020, 10 a.m. 71.7 ppb (69) 51.9 ppb (48) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 2.0 ppb (2) 0.98 ppb (11) 134.0 μg/m3 (90) 46.0 μg/m3 (126) 126.0
 
Jan. 21, 2020, 9 a.m. 49.9 ppb (46) 29.7 ppb (28) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.7 ppb (8) 111.0 μg/m3 (78) 44.0 μg/m3 (121) 121.0
 
Jan. 21, 2020, 8 a.m. 73.2 ppb (70) 50.9 ppb (47) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 2.0 ppb (2) 1.0 ppb (11) 133.0 μg/m3 (89) 45.0 μg/m3 (124) 124.0
 
Jan. 21, 2020, 7 a.m. 76.7 ppb (74) 55.3 ppb (51) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 2.0 ppb (2) 1.01 ppb (11) 144.0 μg/m3 (94) 48.0 μg/m3 (131) 131.0
 
Jan. 21, 2020, 6 a.m. 40.3 ppb (37) 21.3 ppb (20) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.57 ppb (6) 121.0 μg/m3 (83) 30.0 μg/m3 (88) 88.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) 1.0 ppb (1) 0.87 ppb (10) 179.0 μg/m3 (112) 34.0 μg/m3 (97) 112.0
 
Jan. 21, 2020, 4 a.m. 161.2 ppb (112) 124.8 ppb (105) N/A 36.0 ppb (33) N/A 2.0 ppb (3) 2.0 ppb (2) 1.86 ppb (21) 321.0 μg/m3 (183) 57.0 μg/m3 (151) 183.0
 
Jan. 21, 2020, 3 a.m. 157.4 ppb (111) 116.8 ppb (103) N/A 41.0 ppb (38) N/A 2.0 ppb (3) 2.0 ppb (2) 1.9 ppb (21) 248.0 μg/m3 (146) 55.0 μg/m3 (149) 149.0
 
Jan. 21, 2020, 2 a.m. 154.8 ppb (110) 116.7 ppb (103) N/A 38.0 ppb (35) N/A 2.0 ppb (3) 2.0 ppb (2) 1.82 ppb (20) 254.0 μg/m3 (150) 40.0 μg/m3 (111) 150.0
 
Jan. 21, 2020, 1 a.m. 128.8 ppb (105) 90.3 ppb (89) N/A 39.0 ppb (36) N/A 1.0 ppb (1) 2.0 ppb (2) 1.65 ppb (18) 321.0 μg/m3 (183) 41.0 μg/m3 (114) 183.0
 
Jan. 21, 2020, midnight 72.6 ppb (70) 37.6 ppb (35) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 2.0 ppb (2) 0.92 ppb (10) 224.0 μg/m3 (134) 25.0 μg/m3 (78) 134.0
 
Jan. 20, 2020, 11 p.m. 45.1 ppb (42) 14.6 ppb (14) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 6.0 ppb (5) 0.54 ppb (6) 97.0 μg/m3 (71) 10.0 μg/m3 (42) 71.0
 
Jan. 20, 2020, 10 p.m. 20.1 ppb (19) 5.6 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 19.0 ppb (15) 0.28 ppb (3) 65.0 μg/m3 (55) 6.0 μg/m3 (25) 55.0
 
Jan. 20, 2020, 9 p.m. 12.2 ppb (11) 3.1 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (21) 0.12 ppb (1) 44.0 μg/m3 (40) 6.0 μg/m3 (25) 40.0
 
Jan. 20, 2020, 8 p.m. 16.8 ppb (16) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) 48.0 μg/m3 (44) 6.0 μg/m3 (25) 44.0
 
Jan. 20, 2020, 7 p.m. 19.5 ppb (18) 5.2 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (15) 0.18 ppb (2) 46.0 μg/m3 (42) 7.0 μg/m3 (29) 42.0
 
Jan. 20, 2020, 6 p.m. 21.0 ppb (19) 6.4 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 19.0 ppb (15) 0.17 ppb (2) 49.0 μg/m3 (45) 6.0 μg/m3 (25) 45.0
 
Jan. 20, 2020, 5 p.m. 37.7 ppb (35) 17.2 ppb (16) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) 0.36 ppb (4) 74.0 μg/m3 (60) 5.0 μg/m3 (21) 60.0
 
Jan. 20, 2020, 4 p.m. 44.7 ppb (41) 20.7 ppb (19) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 5.0 ppb (4) 0.42 ppb (5) 98.0 μg/m3 (72) 6.0 μg/m3 (25) 72.0
 
Jan. 20, 2020, 3 p.m. 30.7 ppb (28) 10.7 ppb (10) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.34 ppb (4) 59.0 μg/m3 (52) 8.0 μg/m3 (33) 52.0
 
Jan. 20, 2020, 2 p.m. 28.7 ppb (27) 8.5 ppb (8) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.34 ppb (4) 38.0 μg/m3 (35) 8.0 μg/m3 (33) 35.0
 
Jan. 20, 2020, 1 p.m. 34.4 ppb (32) 12.9 ppb (12) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 2.0 ppb (2) 0.46 ppb (5) 34.0 μg/m3 (31) 6.0 μg/m3 (25) 32.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 11 a.m. 18.8 ppb (17) 3.3 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 5.0 ppb (4) 0.22 ppb (2) 25.0 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 10 a.m. 17.1 ppb (16) 3.6 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 9.0 ppb (7) 0.21 ppb (2) 31.0 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2020, 9 a.m. 10.7 ppb (10) 2.1 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (17) 0.13 ppb (1) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 8 a.m. 7.8 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.12 ppb (1) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 22.0
 
Jan. 20, 2020, 7 a.m. 9.8 ppb (9) 2.1 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 6 a.m. 22.7 ppb (21) 3.1 ppb (3) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (8) 0.28 ppb (3) 46.0 μg/m3 (42) 9.0 μg/m3 (38) 42.0
 
Jan. 20, 2020, 5 a.m. 35.9 ppb (33) 12.5 ppb (12) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 7.0 ppb (5) 0.36 ppb (4) 97.0 μg/m3 (71) 11.0 μg/m3 (46) 71.0
 
Jan. 20, 2020, 4 a.m. 16.1 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (15) 0.22 ppb (2) 42.0 μg/m3 (38) 7.0 μg/m3 (29) 38.0
 
Jan. 20, 2020, 3 a.m. 18.5 ppb (17) 2.5 ppb (2) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 20.0 ppb (15) 0.27 ppb (3) 46.0 μg/m3 (42) 9.0 μg/m3 (38) 42.0
 
Jan. 20, 2020, 2 a.m. 18.4 ppb (17) 2.4 ppb (2) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 19.0 ppb (15) 0.3 ppb (3) 48.0 μg/m3 (44) 7.0 μg/m3 (29) 44.0
 
Jan. 20, 2020, 1 a.m. 12.4 ppb (11) 2.1 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (20) 0.18 ppb (2) 38.0 μg/m3 (35) 0.0 μg/m3 (0) 35.0
 
Jan. 20, 2020, midnight 8.7 ppb (8) 2.1 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 34.0 μg/m3 (31) -1.0 μg/m3 (0) 31.0
 
Jan. 19, 2020, 11 p.m. 4.3 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 34.0
 
Jan. 19, 2020, 10 p.m. 4.2 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.08 ppb (1) 9.0 μg/m3 (8) -1.0 μg/m3 (0) 35.0
 
Jan. 19, 2020, 9 p.m. 4.1 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.08 ppb (1) 6.0 μg/m3 (5) 0.0 μg/m3 (0) 35.0
 
Jan. 19, 2020, 8 p.m. 3.9 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) 6.0 μg/m3 (5) 0.0 μg/m3 (0) 35.0
 
Jan. 19, 2020, 7 p.m. 4.2 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) 10.0 μg/m3 (9) -1.0 μg/m3 (0) 34.0
 
Jan. 19, 2020, 6 p.m. 4.7 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.09 ppb (1) 15.0 μg/m3 (14) -1.0 μg/m3 (0) 33.0
 
Jan. 19, 2020, 5 p.m. 5.5 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) 0.1 ppb (1) 16.0 μg/m3 (15) -1.0 μg/m3 (0) 29.0
 
Jan. 19, 2020, 4 p.m. 11.8 ppb (11) 4.2 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) 27.0 μg/m3 (25) 0.0 μg/m3 (0) 25.0
 
Jan. 19, 2020, 3 p.m. 13.9 ppb (13) 3.9 ppb (4) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (16) 0.28 ppb (3) 20.0 μg/m3 (18) 2.0 μg/m3 (8) 18.0
 
Jan. 19, 2020, 2 p.m. 6.4 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.1 ppb (1) 12.0 μg/m3 (11) 2.0 μg/m3 (8) 23.0
 
Jan. 19, 2020, 1 p.m. 4.6 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.09 ppb (1) 9.0 μg/m3 (8) 1.0 μg/m3 (4) 25.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) -2.0 μg/m3 (0) 6.0
 
Jan. 19, 2020, 11 a.m. 4.4 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 12.0 μg/m3 (11) 0.0 μg/m3 (0) 25.0
 
Jan. 19, 2020, 10 a.m. 6.2 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) 16.0 μg/m3 (15) 1.0 μg/m3 (4) 22.0
 
Jan. 19, 2020, 9 a.m. 5.8 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.11 ppb (1) 22.0 μg/m3 (20) 1.0 μg/m3 (4) 24.0
 
Jan. 19, 2020, 8 a.m. 4.9 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) 16.0 μg/m3 (15) 2.0 μg/m3 (8) 25.0
 
Jan. 19, 2020, 7 a.m. 6.2 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) 17.0 μg/m3 (15) 4.0 μg/m3 (17) 25.0
 
Jan. 19, 2020, 6 a.m. 21.6 ppb (20) 3.5 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (12) 0.32 ppb (4) 44.0 μg/m3 (40) 8.0 μg/m3 (33) 40.0
 
Jan. 19, 2020, 5 a.m. 32.2 ppb (30) 5.3 ppb (5) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 9.0 ppb (7) 0.46 ppb (5) 51.0 μg/m3 (46) 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 4 a.m. 25.0 ppb (23) 3.0 ppb (3) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 18.0 ppb (14) 0.3 ppb (3) 45.0 μg/m3 (41) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 3 a.m. 27.5 ppb (25) 4.8 ppb (4) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 16.0 ppb (12) 0.32 ppb (4) 66.0 μg/m3 (56) 10.0 μg/m3 (42) 56.0
 
Jan. 19, 2020, 2 a.m. 22.2 ppb (21) 2.4 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 19.0 ppb (15) 0.31 ppb (3) 55.0 μg/m3 (50) 5.0 μg/m3 (21) 50.0
 
Jan. 19, 2020, 1 a.m. 17.2 ppb (16) 2.4 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 27.0 ppb (21) 0.25 ppb (3) 30.0 μg/m3 (27) 3.0 μg/m3 (12) 27.0
 
Jan. 19, 2020, midnight 6.0 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) 17.0 μg/m3 (15) 1.0 μg/m3 (4) 34.0
 
Jan. 18, 2020, 11 p.m. 4.9 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.09 ppb (1) 6.0 μg/m3 (5) -2.0 μg/m3 (0) 36.0
 
Jan. 18, 2020, 10 p.m. 4.9 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.08 ppb (1) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 36.0
 
Jan. 18, 2020, 9 p.m. 5.1 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.09 ppb (1) 2.0 μg/m3 (2) 1.0 μg/m3 (4) 35.0
 
Jan. 18, 2020, 8 p.m. 5.4 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.09 ppb (1) 6.0 μg/m3 (5) 1.0 μg/m3 (4) 35.0
 
Jan. 18, 2020, 7 p.m. 6.4 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) 11.0 μg/m3 (10) 2.0 μg/m3 (8) 32.0
 
Jan. 18, 2020, 6 p.m. 9.2 ppb (9) 3.7 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 28.0
 
Jan. 18, 2020, 5 p.m. 8.2 ppb (8) 3.3 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 20.0 μg/m3 (18) 2.0 μg/m3 (8) 25.0
 
Jan. 18, 2020, 4 p.m. 8.4 ppb (8) 3.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) 19.0 μg/m3 (17) 3.0 μg/m3 (12) 25.0
 
Jan. 18, 2020, 3 p.m. 14.7 ppb (14) 3.5 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) 0.17 ppb (2) 18.0 μg/m3 (16) 3.0 μg/m3 (12) 18.0
 
Jan. 18, 2020, 2 p.m. 27.6 ppb (26) 8.2 ppb (8) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (6) 0.3 ppb (3) 26.0 μg/m3 (24) 5.0 μg/m3 (21) 26.0
 
Jan. 18, 2020, 1 p.m. 14.4 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) 18.0 μg/m3 (16) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 3.0 μg/m3 (12) 23.0
 
Jan. 18, 2020, 11 a.m. 6.3 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) 16.0 μg/m3 (15) 3.0 μg/m3 (12) 19.0
 
Jan. 18, 2020, 10 a.m. 6.5 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) 13.0 μg/m3 (12) 4.0 μg/m3 (17) 19.0
 
Jan. 18, 2020, 9 a.m. 5.9 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.12 ppb (1) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 8 a.m. 7.1 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 7 a.m. 18.0 ppb (17) 2.9 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 17.0 ppb (13) 0.27 ppb (3) 44.0 μg/m3 (40) 14.0 μg/m3 (54) 54.0
 
Jan. 18, 2020, 6 a.m. 34.3 ppb (32) 7.9 ppb (7) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 4.0 ppb (3) 0.46 ppb (5) 58.0 μg/m3 (52) 20.0 μg/m3 (67) 67.0
 
Jan. 18, 2020, 5 a.m. 33.1 ppb (31) 7.2 ppb (7) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 5.0 ppb (4) 0.43 ppb (5) 69.0 μg/m3 (57) 18.0 μg/m3 (63) 63.0
 
Jan. 18, 2020, 4 a.m. 32.8 ppb (30) 10.5 ppb (10) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 8.0 ppb (6) 0.43 ppb (5) 66.0 μg/m3 (56) 10.0 μg/m3 (42) 56.0
 
Jan. 18, 2020, 3 a.m. 34.8 ppb (32) 4.7 ppb (4) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 8.0 ppb (6) 0.42 ppb (5) 68.0 μg/m3 (56) 13.0 μg/m3 (52) 56.0
 
Jan. 18, 2020, 2 a.m. 46.9 ppb (43) 10.7 ppb (10) N/A 36.0 ppb (33) N/A 0.0 ppb (0) 3.0 ppb (2) 0.49 ppb (5) 117.0 μg/m3 (81) 9.0 μg/m3 (38) 81.0
 
Jan. 18, 2020, 1 a.m. 21.1 ppb (20) 2.5 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 23.0 ppb (18) 0.25 ppb (3) 41.0 μg/m3 (37) 5.0 μg/m3 (21) 37.0
 
Jan. 18, 2020, midnight 8.2 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) 13.0 μg/m3 (12) -1.0 μg/m3 (0) 32.0
 
Jan. 17, 2020, 11 p.m. 6.9 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 32.0
 
Jan. 17, 2020, 10 p.m. 7.1 ppb (7) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.09 ppb (1) 17.0 μg/m3 (15) 4.0 μg/m3 (17) 32.0
 
Jan. 17, 2020, 9 p.m. 7.0 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.09 ppb (1) 16.0 μg/m3 (15) 2.0 μg/m3 (8) 32.0
 
Jan. 17, 2020, 8 p.m. 7.5 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) 0.09 ppb (1) 15.0 μg/m3 (14) 0.0 μg/m3 (0) 31.0
 
Jan. 17, 2020, 7 p.m. 7.2 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (30) 0.09 ppb (1) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 30.0
 
Jan. 17, 2020, 6 p.m. 8.4 ppb (8) 3.1 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) 7.0 μg/m3 (6) 1.0 μg/m3 (4) 26.0
 
Jan. 17, 2020, 5 p.m. 7.1 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.09 ppb (1) 18.0 μg/m3 (16) 2.0 μg/m3 (8) 27.0
 
Jan. 17, 2020, 4 p.m. 10.5 ppb (10) 3.7 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) 27.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 3 p.m. 7.8 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 20.0 μg/m3 (18) 2.0 μg/m3 (8) 25.0
 
Jan. 17, 2020, 2 p.m. 6.4 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.09 ppb (1) 12.0 μg/m3 (11) 0.0 μg/m3 (0) 27.0
 
Jan. 17, 2020, 1 p.m. 5.6 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) 9.0 μg/m3 (8) 0.0 μg/m3 (0) 28.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 12.0
 
Jan. 17, 2020, 11 a.m. 30.7 ppb (28) 3.4 ppb (3) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 8.0 ppb (6) 0.41 ppb (5) 54.0 μg/m3 (49) 26.0 μg/m3 (80) 80.0
 
Jan. 17, 2020, 10 a.m. 28.3 ppb (26) 3.2 ppb (3) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 8.0 ppb (6) 0.38 ppb (4) 53.0 μg/m3 (48) 25.0 μg/m3 (78) 78.0
 
Jan. 17, 2020, 9 a.m. 24.7 ppb (23) 3.4 ppb (3) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 9.0 ppb (7) 0.37 ppb (4) 69.0 μg/m3 (57) 29.0 μg/m3 (86) 86.0
 
Jan. 17, 2020, 8 a.m. 14.3 ppb (13) 2.5 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) 32.0 μg/m3 (29) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 7 a.m. 13.2 ppb (12) 2.6 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (17) 0.19 ppb (2) 38.0 μg/m3 (35) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 6 a.m. 14.7 ppb (14) 2.6 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) 32.0 μg/m3 (29) 14.0 μg/m3 (54) 54.0
 
Jan. 17, 2020, 5 a.m. 18.4 ppb (17) 4.7 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) 41.0 μg/m3 (37) 8.0 μg/m3 (33) 37.0
 
Jan. 17, 2020, 4 a.m. 23.0 ppb (21) 3.1 ppb (3) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 22.0 ppb (17) 0.28 ppb (3) 67.0 μg/m3 (56) 15.0 μg/m3 (56) 56.0
 
Jan. 17, 2020, 3 a.m. 51.3 ppb (48) 11.0 ppb (10) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 10.0 ppb (8) 0.62 ppb (7) 112.0 μg/m3 (78) 32.0 μg/m3 (93) 93.0
 
Jan. 17, 2020, 2 a.m. 91.3 ppb (90) 41.0 ppb (38) N/A 50.0 ppb (46) N/A 1.0 ppb (1) 1.0 ppb (1) 1.18 ppb (13) 188.0 μg/m3 (116) N/A 116.0
 
Jan. 17, 2020, 1 a.m. 59.6 ppb (56) 14.9 ppb (14) N/A 45.0 ppb (42) N/A 4.0 ppb (6) 7.0 ppb (5) 0.84 ppb (9) 124.0 μg/m3 (84) N/A 84.0
 
Jan. 17, 2020, midnight 22.9 ppb (21) 3.6 ppb (3) N/A 19.0 ppb (18) N/A 7.0 ppb (10) 32.0 ppb (25) 0.31 ppb (3) 76.0 μg/m3 (60) N/A 60.0
 
Jan. 16, 2020, 11 p.m. 23.2 ppb (21) 4.4 ppb (4) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 45.0 ppb (35) 0.31 ppb (3) 83.0 μg/m3 (64) N/A 64.0
 
Jan. 16, 2020, 10 p.m. 25.9 ppb (24) 5.0 ppb (5) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 52.0 ppb (40) 0.35 ppb (4) 75.0 μg/m3 (60) N/A 60.0
 
Jan. 16, 2020, 9 p.m. 29.9 ppb (28) 6.1 ppb (6) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 51.0 ppb (39) 0.42 ppb (5) 82.0 μg/m3 (64) N/A 64.0
 
Jan. 16, 2020, 8 p.m. 38.1 ppb (35) 8.9 ppb (8) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 45.0 ppb (35) 0.47 ppb (5) 80.0 μg/m3 (62) N/A 62.0
 
Jan. 16, 2020, 7 p.m. 29.2 ppb (27) 7.5 ppb (7) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 44.0 ppb (34) 0.41 ppb (5) 61.0 μg/m3 (53) N/A 53.0
 
Jan. 16, 2020, 6 p.m. 17.4 ppb (16) 5.8 ppb (5) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 35.0 ppb (27) 0.22 ppb (2) N/A N/A 27.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 24.0 ppb (18) 0.34 ppb (4) 45.0 μg/m3 (41) 16.0 μg/m3 (59) 59.0
 
Jan. 16, 2020, 4 p.m. 144.4 ppb (108) 105.7 ppb (101) N/A 39.0 ppb (36) N/A 1.0 ppb (1) 4.0 ppb (3) 1.55 ppb (17) 165.0 μg/m3 (105) 57.0 μg/m3 (151) 151.0
 
Jan. 16, 2020, 3 p.m. 128.2 ppb (105) 95.0 ppb (94) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) 1.59 ppb (18) 152.0 μg/m3 (98) 44.0 μg/m3 (121) 121.0
 
Jan. 16, 2020, 2 p.m. 122.2 ppb (104) 86.0 ppb (84) N/A 36.0 ppb (33) N/A 1.0 ppb (1) 1.0 ppb (1) 1.34 ppb (15) 212.0 μg/m3 (128) 45.0 μg/m3 (124) 128.0
 
Jan. 16, 2020, 1 p.m. 65.6 ppb (62) 37.4 ppb (35) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 2.0 ppb (2) 0.91 ppb (10) 85.0 μg/m3 (65) 48.0 μg/m3 (131) 131.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 76.0 μg/m3 (60) 48.0 μg/m3 (131) 131.0
 
Jan. 16, 2020, 11 a.m. 67.0 ppb (64) 39.3 ppb (36) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 2.0 ppb (2) 1.01 ppb (11) 88.0 μg/m3 (66) 49.0 μg/m3 (134) 134.0
 
Jan. 16, 2020, 10 a.m. 81.3 ppb (79) 54.4 ppb (50) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 2.0 ppb (2) 1.19 ppb (13) 123.0 μg/m3 (84) 64.0 μg/m3 (154) 154.0
 
Jan. 16, 2020, 9 a.m. 104.6 ppb (101) 76.6 ppb (74) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 2.0 ppb (2) 1.57 ppb (17) 163.0 μg/m3 (104) 69.0 μg/m3 (157) 157.0
 
Jan. 16, 2020, 8 a.m. 91.0 ppb (89) 60.8 ppb (57) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 2.0 ppb (2) 1.32 ppb (15) 124.0 μg/m3 (84) 47.0 μg/m3 (129) 129.0
 
Jan. 16, 2020, 7 a.m. 69.2 ppb (66) 36.8 ppb (34) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 1.0 ppb (1) 0.77 ppb (9) 80.0 μg/m3 (62) 27.0 μg/m3 (82) 82.0
 
Jan. 16, 2020, 6 a.m. 61.8 ppb (58) 29.7 ppb (28) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 1.0 ppb (1) 0.62 ppb (7) 84.0 μg/m3 (64) 26.0 μg/m3 (80) 80.0
 
Jan. 16, 2020, 5 a.m. 63.6 ppb (60) 29.2 ppb (27) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 1.0 ppb (1) 0.68 ppb (8) 101.0 μg/m3 (73) 23.0 μg/m3 (73) 73.0
 
Jan. 16, 2020, 4 a.m. 105.6 ppb (101) 63.5 ppb (60) N/A 42.0 ppb (39) N/A 1.0 ppb (1) 1.0 ppb (1) 1.26 ppb (14) 164.0 μg/m3 (104) 32.0 μg/m3 (93) 104.0
 
Jan. 16, 2020, 3 a.m. 127.7 ppb (105) 80.8 ppb (79) N/A 47.0 ppb (44) N/A 1.0 ppb (1) 2.0 ppb (2) 1.7 ppb (19) 208.0 μg/m3 (126) 40.0 μg/m3 (111) 126.0
 
Jan. 16, 2020, 2 a.m. 66.7 ppb (64) 20.9 ppb (19) N/A 46.0 ppb (43) N/A 1.0 ppb (1) 4.0 ppb (3) 0.93 ppb (10) 134.0 μg/m3 (90) 28.0 μg/m3 (84) 90.0
 
Jan. 16, 2020, 1 a.m. 34.2 ppb (32) 4.0 ppb (4) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 20.0 ppb (15) 0.73 ppb (8) 117.0 μg/m3 (81) 17.0 μg/m3 (61) 81.0
 
Jan. 16, 2020, midnight 12.8 ppb (12) 2.4 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 48.0 ppb (37) 0.19 ppb (2) 47.0 μg/m3 (43) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2020, 11 p.m. 9.1 ppb (8) 2.5 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 53.0 ppb (41) 0.17 ppb (2) 45.0 μg/m3 (41) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2020, 10 p.m. 8.3 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 53.0 ppb (41) 0.15 ppb (2) 37.0 μg/m3 (34) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2020, 9 p.m. 7.6 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 53.0 ppb (41) 0.15 ppb (2) 34.0 μg/m3 (31) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2020, 8 p.m. 10.3 ppb (10) 3.3 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 50.0 ppb (38) 0.15 ppb (2) 38.0 μg/m3 (35) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2020, 7 p.m. 9.5 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 47.0 ppb (36) 0.15 ppb (2) 35.0 μg/m3 (32) 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2020, 6 p.m. 10.6 ppb (10) 3.8 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 42.0 ppb (32) 0.15 ppb (2) 40.0 μg/m3 (36) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2020, 5 p.m. 19.5 ppb (18) 7.2 ppb (7) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 32.0 ppb (25) 0.24 ppb (3) 40.0 μg/m3 (36) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2020, 4 p.m. 61.4 ppb (58) 31.9 ppb (30) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 10.0 ppb (8) 0.77 ppb (9) 100.0 μg/m3 (72) 25.0 μg/m3 (78) 78.0
 
Jan. 15, 2020, 3 p.m. 75.4 ppb (73) 46.6 ppb (43) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 3.0 ppb (2) 0.91 ppb (10) 92.0 μg/m3 (68) 23.0 μg/m3 (73) 73.0
 
Jan. 15, 2020, 2 p.m. 57.1 ppb (53) 29.8 ppb (28) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 2.0 ppb (2) 0.72 ppb (8) 57.0 μg/m3 (51) 26.0 μg/m3 (80) 80.0
 
Jan. 15, 2020, 1 p.m. 41.6 ppb (39) 16.8 ppb (16) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 2.0 ppb (2) 0.56 ppb (6) 61.0 μg/m3 (53) 19.0 μg/m3 (65) 65.0