AQSQID: 320031501

Site Name: Rt

Location: Las Vegas (S Rancho Dr), NV

Reporting: True, Located: True

Current AQI: 19.0

Las Vegas (S Rancho Dr) NV, US: 36.139881, -115.175572

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 24, 2019, 2 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.39 ppb (4) N/A 3.8 μg/m3 (16) 19.0
 
May 24, 2019, 1 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.38 ppb (4) N/A 4.3 μg/m3 (18) 19.0
 
May 24, 2019, midnight N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.3 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
May 23, 2019, 11 p.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.37 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
May 23, 2019, 10 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
May 23, 2019, 9 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.14 ppb (2) N/A 3.2 μg/m3 (13) 13.0
 
May 23, 2019, 8 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 19.0
 
May 23, 2019, 7 p.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.39 ppb (4) N/A 3.9 μg/m3 (16) 24.0
 
May 23, 2019, 6 p.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.38 ppb (4) N/A 3.5 μg/m3 (15) 27.0
 
May 23, 2019, 5 p.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.38 ppb (4) N/A 3.8 μg/m3 (16) 27.0
 
May 23, 2019, 4 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.34 ppb (4) N/A 4.3 μg/m3 (18) 22.0
 
May 23, 2019, 3 p.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.44 ppb (5) N/A 4.8 μg/m3 (20) 26.0
 
May 23, 2019, 2 p.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.62 ppb (7) N/A 6.0 μg/m3 (25) 32.0
 
May 23, 2019, 1 p.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 0.58 ppb (6) N/A 5.4 μg/m3 (23) 36.0
 
May 23, 2019, noon N/A N/A N/A 37.0 ppb (34) N/A N/A N/A 0.8 ppb (9) N/A 4.8 μg/m3 (20) 34.0
 
May 23, 2019, 11 a.m. N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 0.41 ppb (5) N/A 4.2 μg/m3 (18) 28.0
 
May 23, 2019, 10 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.22 ppb (2) N/A 3.9 μg/m3 (16) 22.0
 
May 23, 2019, 9 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 19.0
 
May 23, 2019, 8 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.23 ppb (3) N/A 3.9 μg/m3 (16) 20.0
 
May 23, 2019, 7 a.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.33 ppb (4) N/A 3.9 μg/m3 (16) 26.0
 
May 23, 2019, 6 a.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.36 ppb (4) N/A 4.0 μg/m3 (17) 25.0
 
May 23, 2019, 5 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.19 ppb (2) N/A 2.8 μg/m3 (12) 14.0
 
May 23, 2019, 4 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.12 ppb (1) N/A 2.8 μg/m3 (12) 12.0
 
May 23, 2019, 3 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.15 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
May 23, 2019, 2 a.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.43 ppb (5) N/A 3.0 μg/m3 (12) 24.0
 
May 23, 2019, 1 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 19.0
 
May 23, 2019, midnight N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.32 ppb (4) N/A 3.2 μg/m3 (13) 21.0
 
May 22, 2019, 11 p.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.34 ppb (4) N/A 2.8 μg/m3 (12) 25.0
 
May 22, 2019, 10 p.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.4 ppb (4) N/A 3.2 μg/m3 (13) 26.0
 
May 22, 2019, 9 p.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 23.0
 
May 22, 2019, 8 p.m. N/A N/A N/A 32.0 ppb (30) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 30.0
 
May 22, 2019, 7 p.m. N/A N/A N/A 34.0 ppb (31) N/A N/A N/A 0.5 ppb (6) N/A 5.6 μg/m3 (23) 31.0
 
May 22, 2019, 6 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.21 ppb (2) N/A 5.1 μg/m3 (21) 21.0
 
May 22, 2019, 5 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.16 ppb (2) N/A 3.3 μg/m3 (14) 14.0
 
May 22, 2019, 4 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.19 ppb (2) N/A 3.0 μg/m3 (12) 18.0
 
May 22, 2019, 3 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 22, 2019, 2 p.m. N/A N/A N/A 34.0 ppb (31) N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 31.0
 
May 22, 2019, 1 p.m. N/A N/A N/A 41.0 ppb (38) N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 38.0
 
May 22, 2019, noon N/A N/A N/A 38.0 ppb (35) N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 35.0
 
May 22, 2019, 11 a.m. N/A N/A N/A 31.0 ppb (29) N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 29.0
 
May 22, 2019, 10 a.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 27.0
 
May 22, 2019, 9 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A N/A N/A 3.8 μg/m3 (16) 21.0
 
May 22, 2019, 8 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 3.2 μg/m3 (13) 15.0
 
May 22, 2019, 7 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 3.6 μg/m3 (15) 17.0
 
May 22, 2019, 6 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
May 22, 2019, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
May 22, 2019, 4 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
May 22, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
May 22, 2019, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.9 μg/m3 (16) 16.0
 
May 22, 2019, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
May 22, 2019, midnight N/A N/A N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
May 21, 2019, 10 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.14 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
May 21, 2019, 9 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
May 21, 2019, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.09 ppb (1) N/A 4.4 μg/m3 (18) 18.0
 
May 21, 2019, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
May 21, 2019, 6 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 4.4 μg/m3 (18) 18.0
 
May 21, 2019, 5 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 4 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
May 21, 2019, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 4.4 μg/m3 (18) 19.0
 
May 21, 2019, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
May 21, 2019, noon N/A N/A N/A 32.0 ppb (30) N/A N/A N/A N/A N/A 4.1 μg/m3 (17) 30.0
 
May 21, 2019, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 3.8 μg/m3 (16) 19.0
 
May 21, 2019, 10 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 9 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
May 21, 2019, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
May 21, 2019, 7 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
May 21, 2019, 6 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
May 21, 2019, 5 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 4 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 3.2 μg/m3 (13) 15.0
 
May 21, 2019, 3 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
May 21, 2019, 2 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 21, 2019, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
May 21, 2019, midnight N/A N/A N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 8.0
 
May 20, 2019, 11 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 11.0
 
May 20, 2019, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.09 ppb (1) N/A 1.5 μg/m3 (6) 6.0
 
May 20, 2019, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.11 ppb (1) N/A 1.4 μg/m3 (6) 6.0
 
May 20, 2019, 8 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.14 ppb (2) N/A 1.7 μg/m3 (7) 9.0
 
May 20, 2019, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.14 ppb (2) N/A 1.5 μg/m3 (6) 10.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.08 ppb (1) N/A 2.3 μg/m3 (10) 10.0
 
May 20, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 1.6 μg/m3 (7) 7.0
 
May 20, 2019, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
May 20, 2019, 3 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.13 ppb (1) N/A 2.6 μg/m3 (11) 11.0
 
May 20, 2019, 2 p.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.39 ppb (4) N/A 3.6 μg/m3 (15) 32.0
 
May 20, 2019, 1 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.11 ppb (1) N/A 1.9 μg/m3 (8) 12.0
 
May 20, 2019, noon N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.07 ppb (1) N/A 1.8 μg/m3 (8) 8.0
 
May 20, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.05 ppb (1) N/A 1.7 μg/m3 (7) 7.0
 
May 20, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
May 20, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.06 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
May 20, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.07 ppb (1) N/A 1.5 μg/m3 (6) 6.0
 
May 20, 2019, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 2.3 μg/m3 (10) 10.0
 
May 20, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
May 20, 2019, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.13 ppb (1) N/A 8.4 μg/m3 (35) 35.0
 
May 20, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.1 ppb (1) N/A 11.6 μg/m3 (48) 48.0
 
May 20, 2019, 3 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
May 20, 2019, 2 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.13 ppb (1) N/A 3.4 μg/m3 (14) 14.0
 
May 20, 2019, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.11 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
May 20, 2019, midnight N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.18 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
May 19, 2019, 11 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 10 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.14 ppb (2) N/A 3.1 μg/m3 (13) 13.0
 
May 19, 2019, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.11 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
May 19, 2019, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.12 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
May 19, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.12 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
May 19, 2019, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.15 ppb (2) N/A 3.1 μg/m3 (13) 13.0
 
May 19, 2019, 5 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.23 ppb (3) N/A 2.7 μg/m3 (11) 11.0
 
May 19, 2019, 4 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.26 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
May 19, 2019, 3 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.22 ppb (2) N/A 1.8 μg/m3 (8) 11.0
 
May 19, 2019, 2 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.24 ppb (3) N/A 1.7 μg/m3 (7) 14.0
 
May 19, 2019, 1 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.15 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
May 19, 2019, noon N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.16 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
May 19, 2019, 11 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.11 ppb (1) N/A 3.7 μg/m3 (15) 15.0
 
May 19, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.1 ppb (1) N/A 3.8 μg/m3 (16) 16.0
 
May 19, 2019, 9 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.1 ppb (1) N/A 3.4 μg/m3 (14) 14.0
 
May 19, 2019, 8 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.16 ppb (2) N/A 5.1 μg/m3 (21) 21.0
 
May 19, 2019, 7 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.22 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
May 19, 2019, 6 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 7.2 μg/m3 (30) 30.0
 
May 19, 2019, 5 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.23 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
May 19, 2019, 4 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.41 ppb (5) N/A 4.8 μg/m3 (20) 20.0
 
May 19, 2019, 3 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.37 ppb (4) N/A 4.2 μg/m3 (18) 20.0
 
May 19, 2019, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.12 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
May 19, 2019, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.18 ppb (2) N/A 3.3 μg/m3 (14) 14.0
 
May 19, 2019, midnight N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) N/A 3.2 μg/m3 (13) 13.0
 
May 18, 2019, 11 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.25 ppb (3) N/A 3.1 μg/m3 (13) 13.0
 
May 18, 2019, 10 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.25 ppb (3) N/A 2.6 μg/m3 (11) 11.0
 
May 18, 2019, 9 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.41 ppb (5) N/A 3.2 μg/m3 (13) 17.0
 
May 18, 2019, 8 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.25 ppb (3) N/A 2.7 μg/m3 (11) 14.0
 
May 18, 2019, 7 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 14.0
 
May 18, 2019, 6 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 3.4 μg/m3 (14) 15.0
 
May 18, 2019, 5 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.36 ppb (4) N/A 3.8 μg/m3 (16) 16.0
 
May 18, 2019, 4 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.45 ppb (5) N/A 4.7 μg/m3 (20) 20.0
 
May 18, 2019, 3 p.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.6 ppb (7) N/A 6.8 μg/m3 (28) 28.0
 
May 18, 2019, 2 p.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.65 ppb (7) N/A 6.9 μg/m3 (29) 32.0
 
May 18, 2019, 1 p.m. N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 0.52 ppb (6) N/A 6.2 μg/m3 (26) 29.0
 
May 18, 2019, noon N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.3 ppb (3) N/A 4.5 μg/m3 (19) 20.0
 
May 18, 2019, 11 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.25 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
May 18, 2019, 10 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.34 ppb (4) N/A 4.1 μg/m3 (17) 22.0
 
May 18, 2019, 9 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.32 ppb (4) N/A 4.3 μg/m3 (18) 19.0
 
May 18, 2019, 8 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.37 ppb (4) N/A 4.0 μg/m3 (17) 21.0
 
May 18, 2019, 7 a.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.42 ppb (5) N/A 4.3 μg/m3 (18) 24.0
 
May 18, 2019, 6 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.26 ppb (3) N/A 3.7 μg/m3 (15) 16.0
 
May 18, 2019, 5 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.38 ppb (4) N/A 3.9 μg/m3 (16) 23.0
 
May 18, 2019, 4 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.31 ppb (3) N/A 3.8 μg/m3 (16) 23.0
 
May 18, 2019, 3 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.16 ppb (2) N/A 3.1 μg/m3 (13) 13.0
 
May 18, 2019, 2 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.13 ppb (1) N/A 2.4 μg/m3 (10) 10.0
 
May 18, 2019, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.14 ppb (2) N/A 2.3 μg/m3 (10) 10.0
 
May 18, 2019, midnight N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.23 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
May 17, 2019, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.14 ppb (2) N/A 3.2 μg/m3 (13) 13.0
 
May 17, 2019, 10 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.07 ppb (1) N/A 3.1 μg/m3 (13) 13.0
 
May 17, 2019, 9 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.19 ppb (2) N/A 3.3 μg/m3 (14) 14.0
 
May 17, 2019, 8 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.1 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
May 17, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2019, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.07 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
May 17, 2019, 5 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.11 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
May 17, 2019, 4 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.17 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2019, 3 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.33 ppb (4) N/A 4.6 μg/m3 (19) 20.0
 
May 17, 2019, 2 p.m. N/A N/A N/A 37.0 ppb (34) N/A N/A N/A 0.61 ppb (7) N/A 5.5 μg/m3 (23) 34.0
 
May 17, 2019, 1 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.22 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
May 17, 2019, noon N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.21 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2019, 11 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.15 ppb (2) N/A 4.6 μg/m3 (19) 19.0
 
May 17, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 4.4 μg/m3 (18) 18.0
 
May 17, 2019, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.11 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2019, 8 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.29 ppb (3) N/A 4.4 μg/m3 (18) 18.0
 
May 17, 2019, 7 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.23 ppb (3) N/A 4.3 μg/m3 (18) 20.0
 
May 17, 2019, 6 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.22 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
May 17, 2019, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) N/A 5.6 μg/m3 (23) 23.0
 
May 17, 2019, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.08 ppb (1) N/A 12.3 μg/m3 (51) 51.0
 
May 17, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.07 ppb (1) N/A 12.1 μg/m3 (50) 50.0