AQSQID: 130890002

Site Name: South Dekalb

Location: DeKalb Co, GA

Reporting: True, Located: True

Current AQI: 56.0

DeKalb Co GA, US: 33.6906, -84.2731

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 22, 2019, 10 p.m. 8.4 ppb (8) 0.0 ppb (0) 8.0 ppb (7) 9.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (18) 0.26 ppb (3) 27.0 μg/m3 (25) 14.9 μg/m3 (56) 56.0
 
Nov. 22, 2019, 9 p.m. 8.6 ppb (8) -0.1 ppb (0) 8.0 ppb (7) 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) 0.25 ppb (3) 28.0 μg/m3 (25) 16.5 μg/m3 (60) 60.0
 
Nov. 22, 2019, 8 p.m. 9.8 ppb (9) 0.2 ppb (0) 9.0 ppb (8) 10.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (25) 0.25 ppb (3) 29.0 μg/m3 (26) 16.6 μg/m3 (60) 60.0
 
Nov. 22, 2019, 7 p.m. 16.2 ppb (15) 3.0 ppb (3) 16.0 ppb (15) 13.0 ppb (12) N/A 0.0 ppb (0) 31.0 ppb (24) 0.28 ppb (3) 29.0 μg/m3 (26) 16.7 μg/m3 (60) 60.0
 
Nov. 22, 2019, 6 p.m. 13.2 ppb (12) 4.2 ppb (4) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (26) 0.27 ppb (3) 28.0 μg/m3 (25) 17.7 μg/m3 (62) 62.0
 
Nov. 22, 2019, 5 p.m. 7.1 ppb (7) 1.2 ppb (1) 5.0 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.28 ppb (3) 31.0 μg/m3 (28) 19.3 μg/m3 (66) 66.0
 
Nov. 22, 2019, 4 p.m. 12.4 ppb (11) 2.8 ppb (3) 10.0 ppb (9) 10.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (21) 0.32 ppb (4) 34.0 μg/m3 (31) 21.9 μg/m3 (71) 71.0
 
Nov. 22, 2019, 3 p.m. 40.3 ppb (37) 19.7 ppb (18) 37.0 ppb (34) 21.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) 0.48 ppb (5) 43.0 μg/m3 (39) 24.3 μg/m3 (76) 76.0
 
Nov. 22, 2019, 2 p.m. 68.6 ppb (66) 53.5 ppb (50) 65.0 ppb (62) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.64 ppb (7) 29.0 μg/m3 (26) 19.4 μg/m3 (66) 66.0
 
Nov. 22, 2019, 1 p.m. 70.0 ppb (67) 56.7 ppb (53) 68.0 ppb (65) 13.0 ppb (12) N/A 0.0 ppb (0) 0.0 ppb (0) 0.58 ppb (6) 25.0 μg/m3 (23) 17.9 μg/m3 (63) 67.0
 
Nov. 22, 2019, noon 80.5 ppb (78) 69.7 ppb (67) 81.0 ppb (79) 11.0 ppb (10) N/A 0.0 ppb (0) 0.0 ppb (0) 0.59 ppb (7) 24.0 μg/m3 (22) 17.8 μg/m3 (62) 79.0
 
Nov. 22, 2019, 11 a.m. 92.1 ppb (91) 80.0 ppb (78) 94.0 ppb (93) 12.0 ppb (11) N/A 0.0 ppb (0) 0.0 ppb (0) 0.61 ppb (7) 24.0 μg/m3 (22) 17.8 μg/m3 (62) 93.0
 
Nov. 22, 2019, 10 a.m. 86.8 ppb (85) 72.7 ppb (70) 87.0 ppb (85) 14.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) 0.58 ppb (6) 27.0 μg/m3 (25) 19.2 μg/m3 (65) 85.0
 
Nov. 22, 2019, 9 a.m. 52.4 ppb (49) 37.7 ppb (35) 51.0 ppb (47) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.47 ppb (5) 25.0 μg/m3 (23) 18.0 μg/m3 (63) 63.0
 
Nov. 22, 2019, 8 a.m. 31.8 ppb (29) 17.3 ppb (16) 31.0 ppb (29) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.41 ppb (5) 24.0 μg/m3 (22) 17.3 μg/m3 (61) 61.0
 
Nov. 22, 2019, 7 a.m. 31.0 ppb (29) 17.1 ppb (16) 29.0 ppb (27) 14.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) 0.43 ppb (5) 23.0 μg/m3 (21) 17.5 μg/m3 (62) 62.0
 
Nov. 22, 2019, 6 a.m. 27.8 ppb (26) 13.3 ppb (12) 27.0 ppb (25) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.45 ppb (5) 25.0 μg/m3 (23) 17.2 μg/m3 (61) 61.0
 
Nov. 22, 2019, 5 a.m. 22.4 ppb (21) 7.4 ppb (7) 26.0 ppb (24) 15.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) 0.39 ppb (4) 25.0 μg/m3 (23) 17.7 μg/m3 (62) 62.0
 
Nov. 22, 2019, 4 a.m. 23.5 ppb (22) 4.2 ppb (4) 22.0 ppb (20) 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (4) N/A N/A 22.0
 
Nov. 22, 2019, 3 a.m. 21.6 ppb (20) 3.4 ppb (3) 20.0 ppb (19) 18.0 ppb (17) N/A 0.0 ppb (0) 3.0 ppb (2) 0.37 ppb (4) 24.0 μg/m3 (22) 16.9 μg/m3 (60) 60.0
 
Nov. 22, 2019, 2 a.m. 25.7 ppb (24) 3.8 ppb (4) 29.0 ppb (27) 22.0 ppb (20) N/A 0.0 ppb (0) 3.0 ppb (2) 0.38 ppb (4) 24.0 μg/m3 (22) 15.9 μg/m3 (58) 58.0
 
Nov. 22, 2019, 1 a.m. 17.4 ppb (16) 2.6 ppb (2) 19.0 ppb (18) 15.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (8) 0.33 ppb (4) 23.0 μg/m3 (21) 15.2 μg/m3 (57) 57.0
 
Nov. 22, 2019, midnight 12.2 ppb (11) 2.3 ppb (2) 9.0 ppb (8) 10.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (18) 0.31 ppb (3) 23.0 μg/m3 (21) 14.6 μg/m3 (56) 56.0
 
Nov. 21, 2019, 11 p.m. 8.6 ppb (8) 1.3 ppb (1) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.24 ppb (3) 22.0 μg/m3 (20) 12.3 μg/m3 (51) 51.0
 
Nov. 21, 2019, 10 p.m. 6.0 ppb (6) 0.6 ppb (1) 4.0 ppb (4) 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) 17.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
Nov. 21, 2019, 9 p.m. 4.8 ppb (4) 0.0 ppb (0) 3.0 ppb (3) 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) 15.0 μg/m3 (14) 8.5 μg/m3 (35) 35.0
 
Nov. 21, 2019, 8 p.m. 3.9 ppb (4) -0.3 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) 0.18 ppb (2) 17.0 μg/m3 (15) 8.9 μg/m3 (37) 37.0
 
Nov. 21, 2019, 7 p.m. 3.4 ppb (3) -0.2 ppb (0) 2.0 ppb (2) 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.18 ppb (2) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Nov. 21, 2019, 6 p.m. 4.4 ppb (4) 0.2 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) 0.18 ppb (2) 12.0 μg/m3 (11) 7.3 μg/m3 (30) 31.0
 
Nov. 21, 2019, 5 p.m. 11.0 ppb (10) 2.2 ppb (2) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (25) 0.23 ppb (3) 15.0 μg/m3 (14) 8.5 μg/m3 (35) 35.0
 
Nov. 21, 2019, 4 p.m. 14.6 ppb (14) 3.4 ppb (3) 13.0 ppb (12) 11.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (21) 0.22 ppb (2) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Nov. 21, 2019, 3 p.m. 14.2 ppb (13) 4.3 ppb (4) 12.0 ppb (11) 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.25 ppb (3) 17.0 μg/m3 (15) 11.7 μg/m3 (49) 49.0
 
Nov. 21, 2019, 2 p.m. 52.5 ppb (49) 31.6 ppb (29) 48.0 ppb (44) 21.0 ppb (19) N/A 0.0 ppb (0) 8.0 ppb (6) 0.55 ppb (6) 26.0 μg/m3 (24) 18.1 μg/m3 (63) 63.0
 
Nov. 21, 2019, 1 p.m. 177.0 ppb (115) 162.0 ppb (112) 170.0 ppb (113) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 1.01 ppb (11) 21.0 μg/m3 (19) 12.1 μg/m3 (50) 115.0
 
Nov. 21, 2019, noon 207.5 ppb (120) 193.1 ppb (118) 200.0 ppb (119) 14.0 ppb (13) N/A 1.0 ppb (1) 0.0 ppb (0) 1.02 ppb (11) 19.0 μg/m3 (17) 11.6 μg/m3 (48) 120.0
 
Nov. 21, 2019, 11 a.m. 160.3 ppb (111) 147.3 ppb (109) 160.0 ppb (111) 13.0 ppb (12) N/A 0.0 ppb (0) 0.0 ppb (0) 0.92 ppb (10) 18.0 μg/m3 (16) 10.9 μg/m3 (45) 111.0
 
Nov. 21, 2019, 10 a.m. 125.7 ppb (105) 113.6 ppb (102) 126.0 ppb (105) 12.0 ppb (11) N/A 0.0 ppb (0) 0.0 ppb (0) 0.83 ppb (9) 18.0 μg/m3 (16) 11.0 μg/m3 (46) 105.0
 
Nov. 21, 2019, 9 a.m. 103.3 ppb (100) 90.3 ppb (89) 99.0 ppb (98) 13.0 ppb (12) N/A 0.0 ppb (0) 0.0 ppb (0) 0.79 ppb (9) 18.0 μg/m3 (16) 10.5 μg/m3 (44) 100.0
 
Nov. 21, 2019, 8 a.m. 101.2 ppb (100) 87.2 ppb (85) 98.0 ppb (97) 14.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) 0.76 ppb (8) 17.0 μg/m3 (15) 10.1 μg/m3 (42) 100.0
 
Nov. 21, 2019, 7 a.m. 104.6 ppb (101) 88.6 ppb (87) 100.0 ppb (99) 16.0 ppb (15) N/A 0.0 ppb (0) 0.0 ppb (0) 0.76 ppb (8) 17.0 μg/m3 (15) 9.7 μg/m3 (40) 101.0
 
Nov. 21, 2019, 6 a.m. 109.8 ppb (102) 93.4 ppb (92) 106.0 ppb (101) 16.0 ppb (15) N/A 0.0 ppb (0) 0.0 ppb (0) 0.81 ppb (9) 16.0 μg/m3 (15) 9.7 μg/m3 (40) 102.0
 
Nov. 21, 2019, 5 a.m. 105.2 ppb (101) 85.0 ppb (83) 104.0 ppb (101) 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) 0.81 ppb (9) 18.0 μg/m3 (16) 10.5 μg/m3 (44) 101.0
 
Nov. 21, 2019, 4 a.m. 102.1 ppb (100) 80.0 ppb (78) 101.0 ppb (100) 22.0 ppb (20) N/A 0.0 ppb (0) 0.0 ppb (0) 0.74 ppb (8) N/A N/A 100.0
 
Nov. 21, 2019, 3 a.m. 107.5 ppb (101) 83.1 ppb (81) 110.0 ppb (102) 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.71 ppb (8) 18.0 μg/m3 (16) 8.7 μg/m3 (36) 102.0
 
Nov. 21, 2019, 2 a.m. 88.6 ppb (87) 60.9 ppb (57) 93.0 ppb (91) 28.0 ppb (26) N/A 0.0 ppb (0) 0.0 ppb (0) 0.61 ppb (7) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 91.0
 
Nov. 21, 2019, 1 a.m. 98.4 ppb (97) 66.5 ppb (63) 107.0 ppb (101) 32.0 ppb (30) N/A 0.0 ppb (0) 0.0 ppb (0) 0.62 ppb (7) 17.0 μg/m3 (15) 8.3 μg/m3 (35) 101.0
 
Nov. 21, 2019, midnight 49.0 ppb (45) 18.3 ppb (17) 57.0 ppb (53) 31.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.42 ppb (5) 13.0 μg/m3 (12) 6.5 μg/m3 (27) 53.0
 
Nov. 20, 2019, 11 p.m. 34.9 ppb (32) 4.0 ppb (4) 40.0 ppb (37) 31.0 ppb (29) N/A 0.0 ppb (0) 5.0 ppb (4) 0.33 ppb (4) 12.0 μg/m3 (11) 5.7 μg/m3 (24) 37.0
 
Nov. 20, 2019, 10 p.m. 22.1 ppb (20) 0.7 ppb (1) 21.0 ppb (19) 22.0 ppb (20) N/A 0.0 ppb (0) 18.0 ppb (14) 0.26 ppb (3) 11.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Nov. 20, 2019, 9 p.m. 11.7 ppb (11) 0.4 ppb (0) 11.0 ppb (10) 12.0 ppb (11) N/A 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) 12.0 μg/m3 (11) 5.3 μg/m3 (22) 23.0
 
Nov. 20, 2019, 8 p.m. 7.3 ppb (7) 0.6 ppb (1) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) 12.0 μg/m3 (11) 5.4 μg/m3 (23) 27.0
 
Nov. 20, 2019, 7 p.m. 8.7 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) 12.0 μg/m3 (11) 5.6 μg/m3 (23) 26.0
 
Nov. 20, 2019, 6 p.m. 6.9 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) 11.0 μg/m3 (10) 5.6 μg/m3 (23) 27.0
 
Nov. 20, 2019, 5 p.m. 6.4 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) 10.0 μg/m3 (9) 4.9 μg/m3 (20) 26.0
 
Nov. 20, 2019, 4 p.m. 6.7 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 25.0
 
Nov. 20, 2019, 3 p.m. 8.4 ppb (8) 2.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) 11.0 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
Nov. 20, 2019, 2 p.m. 10.0 ppb (9) 2.3 ppb (2) 9.0 ppb (8) 8.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (18) 0.18 ppb (2) 10.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
Nov. 20, 2019, 1 p.m. 16.8 ppb (16) 3.2 ppb (3) 16.0 ppb (15) 14.0 ppb (13) N/A 0.0 ppb (0) 16.0 ppb (12) 0.22 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Nov. 20, 2019, noon 14.8 ppb (14) 1.0 ppb (1) 14.0 ppb (13) 14.0 ppb (13) N/A 0.0 ppb (0) 14.0 ppb (11) 0.2 ppb (2) 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
Nov. 20, 2019, 11 a.m. 10.9 ppb (10) 0.3 ppb (0) 10.0 ppb (9) 11.0 ppb (10) N/A 0.0 ppb (0) 17.0 ppb (13) 0.17 ppb (2) 10.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
Nov. 20, 2019, 10 a.m. 8.5 ppb (8) 0.3 ppb (0) 7.0 ppb (6) 8.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (15) 0.15 ppb (2) 12.0 μg/m3 (11) 7.2 μg/m3 (30) 30.0
 
Nov. 20, 2019, 9 a.m. 11.3 ppb (10) 0.7 ppb (1) 9.0 ppb (8) 11.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (37) 37.0
 
Nov. 20, 2019, 8 a.m. 30.7 ppb (28) 12.4 ppb (11) 17.0 ppb (16) 18.0 ppb (17) N/A 0.0 ppb (0) 3.0 ppb (2) N/A 19.0 μg/m3 (17) 12.1 μg/m3 (50) 50.0
 
Nov. 20, 2019, 7 a.m. 48.5 ppb (45) 29.0 ppb (27) 23.0 ppb (21) 19.0 ppb (18) N/A 0.0 ppb (0) 0.0 ppb (0) 0.36 ppb (4) 22.0 μg/m3 (20) 13.4 μg/m3 (53) 53.0
 
Nov. 20, 2019, 6 a.m. 41.0 ppb (38) 17.5 ppb (16) 34.0 ppb (31) 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.38 ppb (4) 23.0 μg/m3 (21) 14.4 μg/m3 (55) 55.0
 
Nov. 20, 2019, 5 a.m. 51.4 ppb (48) 30.8 ppb (29) 33.0 ppb (31) 21.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) 0.49 ppb (5) 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
Nov. 20, 2019, 4 a.m. 80.3 ppb (78) 58.7 ppb (55) 72.0 ppb (69) 22.0 ppb (20) N/A 0.0 ppb (0) 0.0 ppb (0) 0.59 ppb (7) N/A N/A 78.0
 
Nov. 20, 2019, 3 a.m. 76.0 ppb (73) 49.4 ppb (46) 70.0 ppb (67) 27.0 ppb (25) N/A 0.0 ppb (0) 0.0 ppb (0) 0.56 ppb (6) 23.0 μg/m3 (21) 14.4 μg/m3 (55) 73.0
 
Nov. 20, 2019, 2 a.m. 65.0 ppb (62) 36.2 ppb (34) 63.0 ppb (60) 29.0 ppb (27) N/A 0.0 ppb (0) 0.0 ppb (0) 0.51 ppb (6) 22.0 μg/m3 (20) 13.6 μg/m3 (53) 62.0
 
Nov. 20, 2019, 1 a.m. 55.9 ppb (52) 25.4 ppb (24) 58.0 ppb (54) 30.0 ppb (28) N/A 0.0 ppb (0) 0.0 ppb (0) 0.45 ppb (5) 20.0 μg/m3 (18) 11.9 μg/m3 (50) 54.0
 
Nov. 20, 2019, midnight 39.1 ppb (36) 8.7 ppb (8) 49.0 ppb (45) 30.0 ppb (28) N/A 0.0 ppb (0) 5.0 ppb (4) 0.34 ppb (4) 19.0 μg/m3 (17) 10.3 μg/m3 (43) 45.0
 
Nov. 19, 2019, 11 p.m. 25.5 ppb (24) 1.8 ppb (2) 22.0 ppb (20) 24.0 ppb (22) N/A 0.0 ppb (0) 14.0 ppb (11) 0.26 ppb (3) 16.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Nov. 19, 2019, 10 p.m. 11.4 ppb (11) 0.9 ppb (1) 10.0 ppb (9) 11.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (22) 0.19 ppb (2) 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
Nov. 19, 2019, 9 p.m. 9.8 ppb (9) 0.4 ppb (0) 8.0 ppb (7) 10.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Nov. 19, 2019, 8 p.m. 7.3 ppb (7) 0.5 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) 14.0 μg/m3 (13) 7.4 μg/m3 (31) 31.0
 
Nov. 19, 2019, 7 p.m. 6.7 ppb (6) 0.7 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) 18.0 μg/m3 (16) 8.1 μg/m3 (34) 34.0
 
Nov. 19, 2019, 6 p.m. 5.9 ppb (5) 0.8 ppb (1) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) 15.0 μg/m3 (14) 7.5 μg/m3 (31) 31.0
 
Nov. 19, 2019, 5 p.m. 7.8 ppb (7) 2.0 ppb (2) 7.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.27 ppb (3) 74.0 μg/m3 (60) 13.6 μg/m3 (53) 60.0
 
Nov. 19, 2019, 4 p.m. 11.3 ppb (10) 3.0 ppb (3) 9.0 ppb (8) 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) 0.19 ppb (2) 15.0 μg/m3 (14) 8.3 μg/m3 (35) 35.0
 
Nov. 19, 2019, 3 p.m. 14.3 ppb (13) 4.5 ppb (4) 12.0 ppb (11) 10.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) 18.0 μg/m3 (16) 12.1 μg/m3 (50) 50.0
 
Nov. 19, 2019, 2 p.m. 16.7 ppb (15) 3.9 ppb (4) 15.0 ppb (14) 13.0 ppb (12) N/A 0.0 ppb (0) 16.0 ppb (12) 0.24 ppb (3) 22.0 μg/m3 (20) 14.5 μg/m3 (55) 55.0
 
Nov. 19, 2019, 1 p.m. 16.9 ppb (16) 2.1 ppb (2) 16.0 ppb (15) 15.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (8) 0.24 ppb (3) 23.0 μg/m3 (21) 16.3 μg/m3 (59) 59.0
 
Nov. 19, 2019, noon 13.5 ppb (12) 1.0 ppb (1) 12.0 ppb (11) 13.0 ppb (12) N/A 0.0 ppb (0) 13.0 ppb (10) 0.23 ppb (3) 24.0 μg/m3 (22) 17.3 μg/m3 (61) 61.0
 
Nov. 19, 2019, 11 a.m. 11.7 ppb (11) 0.9 ppb (1) 10.0 ppb (9) 11.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (12) 0.22 ppb (2) 24.0 μg/m3 (22) 17.6 μg/m3 (62) 62.0
 
Nov. 19, 2019, 10 a.m. 11.0 ppb (10) 1.2 ppb (1) 9.0 ppb (8) 10.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (13) 0.21 ppb (2) 23.0 μg/m3 (21) 17.5 μg/m3 (62) 62.0
 
Nov. 19, 2019, 9 a.m. 11.1 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (13) 0.2 ppb (2) 25.0 μg/m3 (23) 16.8 μg/m3 (60) 60.0
 
Nov. 19, 2019, 8 a.m. 10.0 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 23.0 μg/m3 (21) 15.7 μg/m3 (58) 58.0
 
Nov. 19, 2019, 7 a.m. 15.3 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (9) 0.22 ppb (2) 23.0 μg/m3 (21) 14.6 μg/m3 (56) 56.0
 
Nov. 19, 2019, 6 a.m. 28.0 ppb (26) 1.9 ppb (2) 26.0 ppb (24) 26.0 ppb (24) N/A 0.0 ppb (0) 3.0 ppb (2) 0.31 ppb (3) 23.0 μg/m3 (21) 14.4 μg/m3 (55) 55.0
 
Nov. 19, 2019, 5 a.m. 22.9 ppb (21) 1.7 ppb (2) 20.0 ppb (19) 21.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) 0.31 ppb (3) 21.0 μg/m3 (19) 13.6 μg/m3 (53) 53.0
 
Nov. 19, 2019, 4 a.m. 24.0 ppb (22) 2.3 ppb (2) 20.0 ppb (19) 22.0 ppb (20) N/A 0.0 ppb (0) 7.0 ppb (5) 0.32 ppb (4) N/A N/A 22.0
 
Nov. 19, 2019, 3 a.m. 27.6 ppb (26) 2.8 ppb (3) 23.0 ppb (21) 25.0 ppb (23) N/A 0.0 ppb (0) 8.0 ppb (6) 0.33 ppb (4) 22.0 μg/m3 (20) 13.0 μg/m3 (52) 52.0
 
Nov. 19, 2019, 2 a.m. 25.4 ppb (24) 3.1 ppb (3) 22.0 ppb (20) 23.0 ppb (21) N/A N/A 13.0 ppb (10) 0.31 ppb (3) 20.0 μg/m3 (18) 12.2 μg/m3 (50) 50.0
 
Nov. 19, 2019, 1 a.m. 15.3 ppb (14) 2.6 ppb (2) 12.0 ppb (11) 13.0 ppb (12) N/A N/A 23.0 ppb (18) 0.26 ppb (3) 18.0 μg/m3 (16) 11.1 μg/m3 (46) 46.0
 
Nov. 19, 2019, midnight 14.1 ppb (13) 2.3 ppb (2) 11.0 ppb (10) 12.0 ppb (11) N/A N/A 26.0 ppb (20) 0.25 ppb (3) 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Nov. 18, 2019, 11 p.m. 17.0 ppb (16) 1.6 ppb (1) 13.0 ppb (12) 16.0 ppb (15) N/A 0.0 ppb (0) 22.0 ppb (17) 0.27 ppb (3) N/A N/A 17.0
 
Nov. 18, 2019, 10 p.m. 16.4 ppb (15) 0.8 ppb (1) 14.0 ppb (13) 16.0 ppb (15) N/A 0.0 ppb (0) 29.0 ppb (22) 0.24 ppb (3) 16.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Nov. 18, 2019, 9 p.m. 7.6 ppb (7) -0.1 ppb (0) 7.0 ppb (6) 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) 0.19 ppb (2) 13.0 μg/m3 (12) 8.2 μg/m3 (34) 34.0
 
Nov. 18, 2019, 8 p.m. 3.9 ppb (4) -0.2 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.18 ppb (2) 14.0 μg/m3 (13) 8.7 μg/m3 (36) 36.0
 
Nov. 18, 2019, 7 p.m. 3.9 ppb (4) 0.0 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (35) 0.19 ppb (2) 14.0 μg/m3 (13) 9.1 μg/m3 (38) 38.0
 
Nov. 18, 2019, 6 p.m. 4.5 ppb (4) 0.2 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.19 ppb (2) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Nov. 18, 2019, 5 p.m. 7.0 ppb (6) 0.9 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) 16.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
Nov. 18, 2019, 4 p.m. 8.5 ppb (8) 1.4 ppb (1) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.21 ppb (2) 15.0 μg/m3 (14) 9.3 μg/m3 (39) 39.0
 
Nov. 18, 2019, 3 p.m. 8.2 ppb (8) 1.7 ppb (2) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.22 ppb (2) 19.0 μg/m3 (17) 11.6 μg/m3 (48) 48.0
 
Nov. 18, 2019, 2 p.m. 16.8 ppb (16) 6.6 ppb (6) 13.0 ppb (12) 10.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (16) 0.27 ppb (3) 23.0 μg/m3 (21) 13.9 μg/m3 (54) 54.0
 
Nov. 18, 2019, 1 p.m. 41.1 ppb (38) 26.9 ppb (25) 36.0 ppb (33) 14.0 ppb (13) N/A 0.0 ppb (0) 2.0 ppb (2) 0.33 ppb (4) 21.0 μg/m3 (19) 13.5 μg/m3 (53) 53.0
 
Nov. 18, 2019, noon 30.7 ppb (28) 17.0 ppb (16) 25.0 ppb (23) 14.0 ppb (13) N/A 0.0 ppb (0) 1.0 ppb (1) 0.23 ppb (3) 19.0 μg/m3 (17) 12.2 μg/m3 (50) 50.0
 
Nov. 18, 2019, 11 a.m. 37.7 ppb (35) 19.5 ppb (18) 32.0 ppb (30) 18.0 ppb (17) N/A 0.0 ppb (0) 2.0 ppb (2) 0.19 ppb (2) 17.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
Nov. 18, 2019, 10 a.m. 6.8 ppb (6) 1.6 ppb (1) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (12) 0.18 ppb (2) 16.0 μg/m3 (15) 10.4 μg/m3 (43) 43.0
 
Nov. 18, 2019, 9 a.m. 7.3 ppb (7) 1.7 ppb (2) 5.0 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.19 ppb (2) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
Nov. 18, 2019, 8 a.m. 8.3 ppb (8) 1.8 ppb (2) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.18 ppb (2) 13.0 μg/m3 (12) 7.5 μg/m3 (31) 31.0
 
Nov. 18, 2019, 7 a.m. 4.4 ppb (4) 1.8 ppb (2) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 10.0 ppb (8) 0.17 ppb (2) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
Nov. 18, 2019, 6 a.m. 3.4 ppb (3) 1.8 ppb (2) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 11.0 ppb (8) 0.19 ppb (2) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Nov. 18, 2019, 5 a.m. 3.7 ppb (3) 1.6 ppb (1) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) 0.19 ppb (2) 12.0 μg/m3 (11) 6.2 μg/m3 (26) 26.0
 
Nov. 18, 2019, 4 a.m. 3.6 ppb (3) 1.4 ppb (1) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.19 ppb (2) N/A N/A 20.0
 
Nov. 18, 2019, 3 a.m. 6.9 ppb (6) 1.3 ppb (1) 4.0 ppb (4) 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) 0.22 ppb (2) 13.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
Nov. 18, 2019, 2 a.m. 7.3 ppb (7) 1.2 ppb (1) 5.0 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.24 ppb (3) 14.0 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
Nov. 18, 2019, 1 a.m. 8.2 ppb (8) 1.1 ppb (1) 5.0 ppb (5) 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.26 ppb (3) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Nov. 18, 2019, midnight 5.9 ppb (5) 0.8 ppb (1) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) 0.22 ppb (2) 13.0 μg/m3 (12) 8.5 μg/m3 (35) 35.0
 
Nov. 17, 2019, 11 p.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.19 ppb (2) 11.0 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
Nov. 17, 2019, 10 p.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) 11.0 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Nov. 17, 2019, 9 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) 8.0 μg/m3 (7) 5.1 μg/m3 (21) 28.0
 
Nov. 17, 2019, 8 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) 8.0 μg/m3 (7) 4.8 μg/m3 (20) 30.0
 
Nov. 17, 2019, 7 p.m. N/A N/A 0.0 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) 8.0 μg/m3 (7) 4.9 μg/m3 (20) 30.0
 
Nov. 17, 2019, 6 p.m. 2.1 ppb (2) -0.3 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) 9.0 μg/m3 (8) 5.3 μg/m3 (22) 30.0
 
Nov. 17, 2019, 5 p.m. 3.9 ppb (4) 0.3 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.2 ppb (2) 9.0 μg/m3 (8) 5.5 μg/m3 (23) 28.0
 
Nov. 17, 2019, 4 p.m. 5.2 ppb (5) 1.0 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.2 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Nov. 17, 2019, 3 p.m. 5.9 ppb (5) 2.1 ppb (2) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.19 ppb (2) 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
Nov. 17, 2019, 2 p.m. 6.4 ppb (6) 2.0 ppb (2) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.19 ppb (2) 12.0 μg/m3 (11) 7.6 μg/m3 (32) 32.0
 
Nov. 17, 2019, 1 p.m. 7.7 ppb (7) 1.6 ppb (1) 5.0 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.22 ppb (2) 13.0 μg/m3 (12) 8.7 μg/m3 (36) 36.0
 
Nov. 17, 2019, noon 10.4 ppb (10) 1.3 ppb (1) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 9.0 ppb (7) 0.26 ppb (3) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Nov. 17, 2019, 11 a.m. 16.1 ppb (15) 1.8 ppb (2) 15.0 ppb (14) 15.0 ppb (14) N/A 0.0 ppb (0) 3.0 ppb (2) 0.31 ppb (3) 17.0 μg/m3 (15) 10.9 μg/m3 (45) 45.0
 
Nov. 17, 2019, 10 a.m. 16.6 ppb (15) 2.1 ppb (2) 16.0 ppb (15) 15.0 ppb (14) N/A 0.0 ppb (0) 3.0 ppb (2) 0.33 ppb (4) 17.0 μg/m3 (15) 11.3 μg/m3 (47) 47.0
 
Nov. 17, 2019, 9 a.m. 24.5 ppb (23) 9.6 ppb (9) 23.0 ppb (21) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.44 ppb (5) 21.0 μg/m3 (19) 13.8 μg/m3 (54) 54.0
 
Nov. 17, 2019, 8 a.m. 23.5 ppb (22) 12.1 ppb (11) 25.0 ppb (23) 11.0 ppb (10) N/A 0.0 ppb (0) 0.0 ppb (0) 0.48 ppb (5) 26.0 μg/m3 (24) 17.6 μg/m3 (62) 62.0
 
Nov. 17, 2019, 7 a.m. 16.4 ppb (15) 3.6 ppb (3) 18.0 ppb (17) 13.0 ppb (12) N/A 0.0 ppb (0) 1.0 ppb (1) 0.41 ppb (5) 22.0 μg/m3 (20) 13.8 μg/m3 (54) 54.0
 
Nov. 17, 2019, 6 a.m. 19.6 ppb (18) 4.7 ppb (4) 18.0 ppb (17) 15.0 ppb (14) N/A 0.0 ppb (0) 2.0 ppb (2) 0.49 ppb (5) 22.0 μg/m3 (20) 14.9 μg/m3 (56) 56.0
 
Nov. 17, 2019, 5 a.m. 25.4 ppb (24) 8.8 ppb (8) 28.0 ppb (26) 17.0 ppb (16) N/A 0.0 ppb (0) 0.0 ppb (0) 0.48 ppb (5) 22.0 μg/m3 (20) 15.1 μg/m3 (57) 57.0
 
Nov. 17, 2019, 4 a.m. 18.3 ppb (17) 2.8 ppb (3) 16.0 ppb (15) 16.0 ppb (15) N/A 0.0 ppb (0) 8.0 ppb (6) 0.4 ppb (4) N/A N/A 17.0
 
Nov. 17, 2019, 3 a.m. 16.0 ppb (15) 2.8 ppb (3) 14.0 ppb (13) 13.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (9) 0.35 ppb (4) 22.0 μg/m3 (20) 13.8 μg/m3 (54) 54.0
 
Nov. 17, 2019, 2 a.m. 16.0 ppb (15) 2.4 ppb (2) 13.0 ppb (12) 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) 0.32 ppb (4) 18.0 μg/m3 (16) 12.3 μg/m3 (51) 51.0
 
Nov. 17, 2019, 1 a.m. 13.2 ppb (12) 1.6 ppb (1) 11.0 ppb (10) 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) 0.3 ppb (3) 18.0 μg/m3 (16) 11.8 μg/m3 (49) 49.0
 
Nov. 17, 2019, midnight 13.1 ppb (12) 1.5 ppb (1) 10.0 ppb (9) 12.0 ppb (11) N/A 0.0 ppb (0) 23.0 ppb (18) 0.31 ppb (3) 18.0 μg/m3 (16) 10.9 μg/m3 (45) 45.0
 
Nov. 16, 2019, 11 p.m. 15.9 ppb (15) 0.8 ppb (1) 14.0 ppb (13) 15.0 ppb (14) N/A 0.0 ppb (0) 22.0 ppb (17) 0.33 ppb (4) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Nov. 16, 2019, 10 p.m. 12.5 ppb (12) 0.2 ppb (0) 11.0 ppb (10) 13.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (20) 0.32 ppb (4) 18.0 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
Nov. 16, 2019, 9 p.m. 8.2 ppb (8) -0.1 ppb (0) 7.0 ppb (6) 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) 0.25 ppb (3) 13.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
Nov. 16, 2019, 8 p.m. 3.2 ppb (3) -0.3 ppb (0) 2.0 ppb (2) 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.17 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 29.0
 
Nov. 16, 2019, 7 p.m. 2.5 ppb (2) -0.3 ppb (0) 1.0 ppb (1) 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) 8.0 μg/m3 (7) 4.5 μg/m3 (19) 31.0
 
Nov. 16, 2019, 6 p.m. 3.0 ppb (3) -0.1 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) 8.0 μg/m3 (7) 4.6 μg/m3 (19) 30.0
 
Nov. 16, 2019, 5 p.m. 4.2 ppb (4) 0.2 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.19 ppb (2) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 27.0
 
Nov. 16, 2019, 4 p.m. 9.8 ppb (9) 2.6 ppb (2) 8.0 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.24 ppb (3) 12.0 μg/m3 (11) 7.5 μg/m3 (31) 31.0
 
Nov. 16, 2019, 3 p.m. 17.5 ppb (16) 6.4 ppb (6) 15.0 ppb (14) 11.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (11) 0.29 ppb (3) 15.0 μg/m3 (14) 10.1 μg/m3 (42) 42.0
 
Nov. 16, 2019, 2 p.m. 17.7 ppb (16) 5.8 ppb (5) 17.0 ppb (16) 12.0 ppb (11) N/A 0.0 ppb (0) 11.0 ppb (8) 0.29 ppb (3) 16.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
Nov. 16, 2019, 1 p.m. 21.1 ppb (20) 6.1 ppb (6) 20.0 ppb (19) 15.0 ppb (14) N/A 0.0 ppb (0) 7.0 ppb (5) 0.3 ppb (3) 17.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
Nov. 16, 2019, noon 14.3 ppb (13) 1.2 ppb (1) 14.0 ppb (13) 13.0 ppb (12) N/A 0.0 ppb (0) 6.0 ppb (5) 0.25 ppb (3) 17.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
Nov. 16, 2019, 11 a.m. 10.2 ppb (9) 0.1 ppb (0) 10.0 ppb (9) 10.0 ppb (9) N/A 0.0 ppb (0) 9.0 ppb (7) 0.23 ppb (3) 16.0 μg/m3 (15) 11.3 μg/m3 (47) 47.0
 
Nov. 16, 2019, 10 a.m. 9.4 ppb (9) 0.1 ppb (0) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 9.0 ppb (7) 0.24 ppb (3) 17.0 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
Nov. 16, 2019, 9 a.m. 12.1 ppb (11) 0.2 ppb (0) 11.0 ppb (10) 12.0 ppb (11) N/A 0.0 ppb (0) 5.0 ppb (4) 0.28 ppb (3) 20.0 μg/m3 (18) 13.2 μg/m3 (53) 53.0
 
Nov. 16, 2019, 8 a.m. 13.2 ppb (12) 0.0 ppb (0) 12.0 ppb (11) 13.0 ppb (12) N/A 0.0 ppb (0) 6.0 ppb (5) 0.29 ppb (3) 22.0 μg/m3 (20) 13.5 μg/m3 (53) 53.0
 
Nov. 16, 2019, 7 a.m. 18.2 ppb (17) 0.9 ppb (1) 17.0 ppb (16) 17.0 ppb (16) N/A 0.0 ppb (0) 6.0 ppb (5) 0.33 ppb (4) 21.0 μg/m3 (19) 14.4 μg/m3 (55) 55.0
 
Nov. 16, 2019, 6 a.m. 27.9 ppb (26) 7.8 ppb (7) 26.0 ppb (24) 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) 0.47 ppb (5) 26.0 μg/m3 (24) 17.2 μg/m3 (61) 61.0
 
Nov. 16, 2019, 5 a.m. 26.6 ppb (25) 9.4 ppb (9) 26.0 ppb (24) 17.0 ppb (16) N/A 0.0 ppb (0) 0.0 ppb (0) 0.49 ppb (5) 27.0 μg/m3 (25) 18.3 μg/m3 (63) 63.0
 
Nov. 16, 2019, 4 a.m. 29.6 ppb (27) 12.4 ppb (11) 28.0 ppb (26) 17.0 ppb (16) N/A 0.0 ppb (0) 0.0 ppb (0) 0.51 ppb (6) 26.0 μg/m3 (24) 17.6 μg/m3 (62) 62.0
 
Nov. 16, 2019, 3 a.m. 27.2 ppb (25) 10.4 ppb (10) 26.0 ppb (24) 17.0 ppb (16) N/A 0.0 ppb (0) 0.0 ppb (0) 0.47 ppb (5) 25.0 μg/m3 (23) 17.0 μg/m3 (61) 61.0
 
Nov. 16, 2019, 2 a.m. 26.9 ppb (25) 9.7 ppb (9) 27.0 ppb (25) 17.0 ppb (16) N/A 0.0 ppb (0) 0.0 ppb (0) 0.44 ppb (5) 23.0 μg/m3 (21) 15.9 μg/m3 (58) 58.0
 
Nov. 16, 2019, 1 a.m. 24.4 ppb (23) 4.7 ppb (4) 23.0 ppb (21) 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) 0.41 ppb (5) 23.0 μg/m3 (21) 15.6 μg/m3 (58) 58.0
 
Nov. 16, 2019, midnight 25.2 ppb (23) 6.3 ppb (6) 24.0 ppb (22) 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.37 ppb (4) 21.0 μg/m3 (19) 14.1 μg/m3 (54) 54.0
 
Nov. 15, 2019, 11 p.m. 16.8 ppb (16) 1.1 ppb (1) 15.0 ppb (14) 16.0 ppb (15) N/A 0.0 ppb (0) 4.0 ppb (3) 0.32 ppb (4) 20.0 μg/m3 (18) 13.1 μg/m3 (52) 52.0