AQSQID: 320030298

Site Name: Greenvalley

Location: Henderson, NV

Reporting: True, Located: True

Current AQI: 22.0

Henderson NV, US: 36.0522, -115.0569

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 24, 2019, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 13.0 μg/m3 (12) 3.7 μg/m3 (15) 22.0
 
Jan. 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 5.4 μg/m3 (23) 23.0
 
Jan. 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 7.5 μg/m3 (31) 31.0
 
Jan. 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 15.0 μg/m3 (14) 5.6 μg/m3 (23) 23.0
 
Jan. 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 16.0 μg/m3 (15) 5.2 μg/m3 (22) 22.0
 
Jan. 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) 3.4 μg/m3 (14) 23.0
 
Jan. 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 15.0 μg/m3 (14) 4.1 μg/m3 (17) 21.0
 
Jan. 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 24.0 μg/m3 (22) 7.4 μg/m3 (31) 31.0
 
Jan. 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 21.0 μg/m3 (19) 6.5 μg/m3 (27) 27.0
 
Jan. 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 67.0 μg/m3 (56) 12.5 μg/m3 (51) 56.0
 
Jan. 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Jan. 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 14.0
 
Jan. 23, 2019, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 15.0
 
Jan. 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 13.0
 
Jan. 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 13.0
 
Jan. 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 15.0
 
Jan. 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 14.0
 
Jan. 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 17.0
 
Jan. 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 16.0
 
Jan. 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 18.0
 
Jan. 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 22.0
 
Jan. 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) 3.4 μg/m3 (14) 20.0
 
Jan. 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 24.0
 
Jan. 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 2.1 μg/m3 (9) 24.0
 
Jan. 23, 2019, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 28.0
 
Jan. 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 29.0
 
Jan. 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 5.0 μg/m3 (5) 1.2 μg/m3 (5) 30.0
 
Jan. 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 1.3 μg/m3 (5) 31.0
 
Jan. 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 1.4 μg/m3 (6) 31.0
 
Jan. 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 11.0 μg/m3 (10) 1.5 μg/m3 (6) 29.0
 
Jan. 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) 1.6 μg/m3 (7) 29.0
 
Jan. 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 14.0 μg/m3 (13) 2.1 μg/m3 (9) 27.0
 
Jan. 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 20.0 μg/m3 (18) 2.8 μg/m3 (12) 25.0
 
Jan. 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 30.0 μg/m3 (27) 3.5 μg/m3 (15) 27.0
 
Jan. 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 29.0 μg/m3 (26) 3.4 μg/m3 (14) 26.0
 
Jan. 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 22.0 μg/m3 (20) 2.6 μg/m3 (11) 26.0
 
Jan. 22, 2019, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 18.0 μg/m3 (16) 2.1 μg/m3 (9) 28.0
 
Jan. 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 9.0 μg/m3 (8) 1.4 μg/m3 (6) 29.0
 
Jan. 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 28.0
 
Jan. 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 10.0 μg/m3 (9) 1.7 μg/m3 (7) 28.0
 
Jan. 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 1.9 μg/m3 (8) 8.0
 
Jan. 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 9.0 μg/m3 (8) 1.9 μg/m3 (8) 28.0
 
Jan. 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 1.7 μg/m3 (7) 28.0
 
Jan. 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 1.6 μg/m3 (7) 28.0
 
Jan. 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 28.0
 
Jan. 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 1.4 μg/m3 (6) 28.0
 
Jan. 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 1.4 μg/m3 (6) 28.0
 
Jan. 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 1.1 μg/m3 (5) 27.0
 
Jan. 22, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 1.1 μg/m3 (5) 27.0
 
Jan. 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 7.0 μg/m3 (6) 1.2 μg/m3 (5) 27.0
 
Jan. 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 1.5 μg/m3 (6) 27.0
 
Jan. 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 8.0 μg/m3 (7) 1.1 μg/m3 (5) 30.0
 
Jan. 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 17.0 μg/m3 (15) 1.6 μg/m3 (7) 31.0
 
Jan. 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) 1.6 μg/m3 (7) 32.0
 
Jan. 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 14.0 μg/m3 (13) 1.9 μg/m3 (8) 32.0
 
Jan. 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 20.0 μg/m3 (18) 2.6 μg/m3 (11) 32.0
 
Jan. 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 27.0 μg/m3 (25) 3.7 μg/m3 (15) 32.0
 
Jan. 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 36.0 μg/m3 (33) 4.8 μg/m3 (20) 33.0
 
Jan. 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 30.0 μg/m3 (27) 4.7 μg/m3 (20) 33.0
 
Jan. 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 66.0 μg/m3 (56) 7.5 μg/m3 (31) 56.0
 
Jan. 21, 2019, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 21.0 μg/m3 (19) 2.5 μg/m3 (10) 31.0
 
Jan. 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) 1.6 μg/m3 (7) 29.0
 
Jan. 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 2.4 μg/m3 (10) 29.0
 
Jan. 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 16.0 μg/m3 (15) 2.3 μg/m3 (10) 28.0
 
Jan. 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 25.0
 
Jan. 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 24.0
 
Jan. 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 24.0
 
Jan. 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 2.3 μg/m3 (10) 22.0
 
Jan. 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Jan. 21, 2019, 3 a.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. 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 11.0 μg/m3 (10) 4.5 μg/m3 (19) 19.0
 
Jan. 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 18.0
 
Jan. 21, 2019, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 3.1 μg/m3 (13) 20.0
 
Jan. 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 2.6 μg/m3 (11) 23.0
 
Jan. 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 25.0
 
Jan. 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 27.0
 
Jan. 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 25.0
 
Jan. 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 14.0 μg/m3 (13) 7.8 μg/m3 (32) 32.0
 
Jan. 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 28.0 μg/m3 (25) 16.3 μg/m3 (59) 59.0
 
Jan. 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 27.0 μg/m3 (25) 15.8 μg/m3 (58) 58.0
 
Jan. 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 18.0 μg/m3 (16) 9.7 μg/m3 (40) 40.0
 
Jan. 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
Jan. 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 48.0 μg/m3 (44) 11.3 μg/m3 (47) 47.0
 
Jan. 20, 2019, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 13.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
Jan. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 14.0 μg/m3 (13) 7.5 μg/m3 (31) 31.0
 
Jan. 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 14.0 μg/m3 (13) 7.8 μg/m3 (32) 32.0
 
Jan. 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 13.0 μg/m3 (12) 6.8 μg/m3 (28) 28.0
 
Jan. 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 19.0 μg/m3 (17) 9.8 μg/m3 (41) 41.0
 
Jan. 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 20.0 μg/m3 (18) 11.3 μg/m3 (47) 47.0
 
Jan. 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 22.0 μg/m3 (20) 11.6 μg/m3 (48) 48.0
 
Jan. 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 21.0 μg/m3 (19) 11.7 μg/m3 (49) 49.0
 
Jan. 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
Jan. 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2019, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 3.8 μg/m3 (16) 25.0
 
Jan. 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 5.7 μg/m3 (24) 27.0
 
Jan. 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 5.8 μg/m3 (24) 27.0
 
Jan. 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 11.0 μg/m3 (10) 6.2 μg/m3 (26) 26.0
 
Jan. 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 11.0 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
Jan. 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 16.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
Jan. 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 17.0 μg/m3 (15) 6.8 μg/m3 (28) 28.0
 
Jan. 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 15.0 μg/m3 (14) 4.2 μg/m3 (18) 18.0
 
Jan. 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 12.0
 
Jan. 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 13.0
 
Jan. 19, 2019, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 14.0
 
Jan. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 8.0 μg/m3 (7) 3.8 μg/m3 (16) 16.0
 
Jan. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 8.0 μg/m3 (7) 3.8 μg/m3 (16) 16.0
 
Jan. 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Jan. 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 15.0
 
Jan. 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 9.0 μg/m3 (8) 3.6 μg/m3 (15) 15.0
 
Jan. 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 11.0 μg/m3 (10) 5.1 μg/m3 (21) 21.0
 
Jan. 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 11.0 μg/m3 (10) 5.1 μg/m3 (21) 21.0
 
Jan. 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 13.0 μg/m3 (12) 5.7 μg/m3 (24) 24.0
 
Jan. 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 20.0
 
Jan. 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 19.0
 
Jan. 19, 2019, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 28.0
 
Jan. 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 31.0
 
Jan. 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 4.0 μg/m3 (4) 0.7 μg/m3 (3) 32.0
 
Jan. 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 32.0
 
Jan. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 30.0
 
Jan. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) 1.4 μg/m3 (6) 28.0
 
Jan. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 9.0 μg/m3 (8) 3.1 μg/m3 (13) 23.0
 
Jan. 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 17.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
Jan. 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 15.0 μg/m3 (14) 4.3 μg/m3 (18) 18.0
 
Jan. 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 10.0 μg/m3 (9) 3.3 μg/m3 (14) 14.0
 
Jan. 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
Jan. 18, 2019, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 19.0
 
Jan. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 15.0
 
Jan. 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 27.0
 
Jan. 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 28.0
 
Jan. 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 28.0
 
Jan. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 27.0
 
Jan. 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 1.8 μg/m3 (8) 28.0
 
Jan. 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 28.0
 
Jan. 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 28.0
 
Jan. 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 27.0
 
Jan. 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 25.0
 
Jan. 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 23.0
 
Jan. 18, 2019, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 24.0
 
Jan. 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 25.0
 
Jan. 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (3) 25.0
 
Jan. 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 25.0
 
Jan. 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 23.0
 
Jan. 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 23.0
 
Jan. 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 18.0
 
Jan. 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 3.9 μg/m3 (16) 22.0
 
Jan. 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 24.0
 
Jan. 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 24.0
 
Jan. 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 23.0
 
Jan. 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 10.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Jan. 17, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 13.0 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
Jan. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 16.0 μg/m3 (15) 10.8 μg/m3 (45) 45.0
 
Jan. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
Jan. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 18.0 μg/m3 (16) 11.2 μg/m3 (47) 47.0
 
Jan. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 21.0 μg/m3 (19) 10.9 μg/m3 (45) 45.0
 
Jan. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 19.0 μg/m3 (17) 10.9 μg/m3 (45) 45.0
 
Jan. 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
Jan. 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 14.0 μg/m3 (13) 8.2 μg/m3 (34) 34.0
 
Jan. 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 13.0 μg/m3 (12) 6.7 μg/m3 (28) 28.0
 
Jan. 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 21.0
 
Jan. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 21.0