AQSQID: 320311005

Site Name: Sparks

Location: Sparks, NV

Reporting: True, Located: True

Current AQI: 31.0

Sparks NV, US: 39.540916, -119.746758

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2019, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 31.0
 
July 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.1 ppb (1) 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
July 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 36.0
 
July 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.1 ppb (1) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 39.0
 
July 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.1 ppb (1) 26.0 μg/m3 (24) 3.0 μg/m3 (12) 38.0
 
July 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 24.0 μg/m3 (22) 5.0 μg/m3 (21) 33.0
 
July 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.3 ppb (3) 25.0 μg/m3 (23) 7.0 μg/m3 (29) 29.0
 
July 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.5 ppb (6) 44.0 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
July 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.6 ppb (7) 65.0 μg/m3 (55) 12.0 μg/m3 (50) 55.0
 
July 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.6 ppb (7) 40.0 μg/m3 (36) 12.0 μg/m3 (50) 50.0
 
July 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 0.5 ppb (6) 33.0 μg/m3 (30) 11.0 μg/m3 (46) 46.0
 
July 23, 2019, noon N/A N/A N/A N/A N/A N/A 7.0 ppb (5) 0.4 ppb (4) 22.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
July 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.3 ppb (3) 32.0 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
July 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.2 ppb (2) 24.0 μg/m3 (22) 8.0 μg/m3 (33) 33.0
 
July 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.2 ppb (2) 23.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
July 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.2 ppb (2) 17.0 μg/m3 (15) 3.0 μg/m3 (12) 18.0
 
July 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.2 ppb (2) 18.0 μg/m3 (16) 2.0 μg/m3 (8) 22.0
 
July 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 15.0 μg/m3 (14) 1.0 μg/m3 (4) 22.0
 
July 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 19.0 μg/m3 (17) 3.0 μg/m3 (12) 28.0
 
July 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 28.0
 
July 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
July 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
July 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 28.0
 
July 23, 2019, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
July 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 29.0
 
July 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.1 ppb (1) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 28.0
 
July 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.1 ppb (1) 26.0 μg/m3 (24) 4.0 μg/m3 (17) 28.0
 
July 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.1 ppb (1) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 28.0
 
July 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.1 ppb (1) 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
July 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.2 ppb (2) N/A N/A 40.0
 
July 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.3 ppb (3) 34.0 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
July 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.3 ppb (3) 35.0 μg/m3 (32) 12.0 μg/m3 (50) 50.0
 
July 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.3 ppb (3) 33.0 μg/m3 (30) 11.0 μg/m3 (46) 46.0
 
July 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 41.0 μg/m3 (37) 17.0 μg/m3 (61) 61.0
 
July 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.4 ppb (4) 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
July 22, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.3 ppb (3) 25.0 μg/m3 (23) 8.0 μg/m3 (33) 33.0
 
July 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.2 ppb (2) 24.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 23.0
 
July 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 25.0
 
July 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 25.0
 
July 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 12.0 μg/m3 (11) 0.0 μg/m3 (0) 28.0
 
July 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 18.0 μg/m3 (16) 2.0 μg/m3 (8) 28.0
 
July 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 20.0 μg/m3 (18) 4.0 μg/m3 (17) 28.0
 
July 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
July 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
July 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 24.0 μg/m3 (22) 7.0 μg/m3 (29) 29.0
 
July 22, 2019, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 20.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
July 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 27.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
July 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
July 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.2 ppb (2) 25.0 μg/m3 (23) 13.0 μg/m3 (52) 52.0
 
July 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.2 ppb (2) 17.0 μg/m3 (15) 14.0 μg/m3 (54) 54.0
 
July 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.2 ppb (2) 17.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
July 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.2 ppb (2) 22.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
July 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.2 ppb (2) 19.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
July 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
July 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 19.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
July 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.2 ppb (2) 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
July 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.2 ppb (2) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
July 21, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.3 ppb (3) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
July 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.2 ppb (2) 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
July 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.3 ppb (3) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
July 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.2 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
July 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 21.0 μg/m3 (19) 8.0 μg/m3 (33) 33.0
 
July 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 25.0 μg/m3 (23) 3.0 μg/m3 (12) 26.0
 
July 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 13.0 μg/m3 (12) 2.0 μg/m3 (8) 25.0
 
July 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 25.0
 
July 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
July 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.2 ppb (2) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
July 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 25.0 μg/m3 (23) 6.0 μg/m3 (25) 32.0
 
July 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 32.0
 
July 21, 2019, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 21.0 μg/m3 (19) 6.0 μg/m3 (25) 35.0
 
July 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) 0.2 ppb (2) 18.0 μg/m3 (16) 8.0 μg/m3 (33) 45.0
 
July 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.2 ppb (2) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 44.0
 
July 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.2 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 44.0
 
July 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) 0.2 ppb (2) 18.0 μg/m3 (16) 9.0 μg/m3 (38) 45.0
 
July 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.2 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 43.0
 
July 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.2 ppb (2) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 40.0
 
July 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.2 ppb (2) 17.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
July 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 25.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
July 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.2 ppb (2) 24.0 μg/m3 (22) 8.0 μg/m3 (33) 33.0
 
July 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.3 ppb (3) 36.0 μg/m3 (33) 7.0 μg/m3 (29) 33.0
 
July 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.2 ppb (2) 23.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
July 20, 2019, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.2 ppb (2) 28.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
July 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
July 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
July 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 35.0
 
July 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 14.0 μg/m3 (13) 1.0 μg/m3 (4) 35.0
 
July 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 19.0 μg/m3 (17) -5.0 μg/m3 (0) 33.0
 
July 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 17.0 μg/m3 (15) -3.0 μg/m3 (0) 32.0
 
July 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 24.0 μg/m3 (22) 3.0 μg/m3 (12) 32.0
 
July 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 23.0 μg/m3 (21) 7.0 μg/m3 (29) 33.0
 
July 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 31.0 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
July 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 25.0 μg/m3 (23) 6.0 μg/m3 (25) 35.0
 
July 20, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 23.0 μg/m3 (21) 5.0 μg/m3 (21) 36.0
 
July 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.2 ppb (2) 24.0 μg/m3 (22) 8.0 μg/m3 (33) 37.0
 
July 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.2 ppb (2) 18.0 μg/m3 (16) 13.0 μg/m3 (52) 52.0
 
July 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.2 ppb (2) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 44.0
 
July 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (51) 0.2 ppb (2) 11.0 μg/m3 (10) 10.0 μg/m3 (42) 51.0
 
July 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) 0.2 ppb (2) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 52.0
 
July 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) 0.2 ppb (2) 19.0 μg/m3 (17) 8.0 μg/m3 (33) 46.0
 
July 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.2 ppb (2) 33.0 μg/m3 (30) 13.0 μg/m3 (52) 52.0
 
July 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.3 ppb (3) 30.0 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
July 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.3 ppb (3) 45.0 μg/m3 (41) 17.0 μg/m3 (61) 61.0
 
July 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.4 ppb (4) 48.0 μg/m3 (44) 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.4 ppb (4) 40.0 μg/m3 (36) 13.0 μg/m3 (52) 52.0
 
July 19, 2019, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.3 ppb (3) 28.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 21.0 μg/m3 (19) 6.0 μg/m3 (25) 34.0
 
July 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.2 ppb (2) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 39.0
 
July 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.2 ppb (2) 17.0 μg/m3 (15) 4.0 μg/m3 (17) 40.0
 
July 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.2 ppb (2) 18.0 μg/m3 (16) 6.0 μg/m3 (25) 42.0
 
July 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.2 ppb (2) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 43.0
 
July 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) 0.2 ppb (2) 21.0 μg/m3 (19) 3.0 μg/m3 (12) 45.0
 
July 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.2 ppb (2) 20.0 μg/m3 (18) 4.0 μg/m3 (17) 43.0
 
July 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.2 ppb (2) 18.0 μg/m3 (16) 5.0 μg/m3 (21) 42.0
 
July 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.2 ppb (2) 22.0 μg/m3 (20) 6.0 μg/m3 (25) 41.0
 
July 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.2 ppb (2) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 41.0
 
July 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.2 ppb (2) 22.0 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
July 19, 2019, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.2 ppb (2) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 42.0
 
July 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.2 ppb (2) 24.0 μg/m3 (22) 4.0 μg/m3 (17) 43.0
 
July 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.2 ppb (2) 22.0 μg/m3 (20) 6.0 μg/m3 (25) 43.0
 
July 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.2 ppb (2) 11.0 μg/m3 (10) 9.0 μg/m3 (38) 44.0
 
July 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) 0.2 ppb (2) 16.0 μg/m3 (15) 8.0 μg/m3 (33) 47.0
 
July 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.2 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 45.0
 
July 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.2 ppb (2) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 40.0
 
July 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.2 ppb (2) 16.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
July 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.3 ppb (3) 30.0 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
July 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.3 ppb (3) 31.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
July 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.4 ppb (4) 32.0 μg/m3 (29) 3.0 μg/m3 (12) 29.0
 
July 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.4 ppb (4) 23.0 μg/m3 (21) 4.0 μg/m3 (17) 21.0
 
July 18, 2019, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.3 ppb (3) 28.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
July 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.2 ppb (2) 22.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.2 ppb (2) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 22.0
 
July 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 26.0
 
July 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 13.0 μg/m3 (12) -2.0 μg/m3 (0) 28.0
 
July 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 14.0 μg/m3 (13) -3.0 μg/m3 (0) 29.0
 
July 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 13.0 μg/m3 (12) 1.0 μg/m3 (4) 31.0
 
July 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 32.0
 
July 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 18.0 μg/m3 (16) 5.0 μg/m3 (21) 32.0
 
July 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 19.0 μg/m3 (17) 5.0 μg/m3 (21) 35.0
 
July 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 20.0 μg/m3 (18) 4.0 μg/m3 (17) 35.0
 
July 18, 2019, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 22.0 μg/m3 (20) 6.0 μg/m3 (25) 32.0
 
July 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 20.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
July 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.2 ppb (2) 22.0 μg/m3 (20) 7.0 μg/m3 (29) 42.0
 
July 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.2 ppb (2) 21.0 μg/m3 (19) 8.0 μg/m3 (33) 42.0
 
July 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.2 ppb (2) 18.0 μg/m3 (16) 10.0 μg/m3 (42) 43.0
 
July 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 38.0
 
July 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 31.0 μg/m3 (28) 13.0 μg/m3 (52) 52.0
 
July 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.3 ppb (3) 24.0 μg/m3 (22) 15.0 μg/m3 (56) 56.0
 
July 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.3 ppb (3) 29.0 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
July 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.4 ppb (4) 46.0 μg/m3 (42) 6.0 μg/m3 (25) 42.0
 
July 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) 0.5 ppb (6) 31.0 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
July 17, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.3 ppb (3) 38.0 μg/m3 (35) 4.0 μg/m3 (17) 35.0
 
July 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.2 ppb (2) 22.0 μg/m3 (20) 0.0 μg/m3 (0) 20.0
 
July 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.2 ppb (2) 12.0 μg/m3 (11) 2.0 μg/m3 (8) 14.0
 
July 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.2 ppb (2) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
July 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.1 ppb (1) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 26.0
 
July 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.1 ppb (1) 13.0 μg/m3 (12) -1.0 μg/m3 (0) 27.0
 
July 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 12.0 μg/m3 (11) -3.0 μg/m3 (0) 24.0
 
July 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 10.0 μg/m3 (9) -3.0 μg/m3 (0) 23.0
 
July 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 11.0 μg/m3 (10) -3.0 μg/m3 (0) 25.0
 
July 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 15.0 μg/m3 (14) 2.0 μg/m3 (8) 27.0
 
July 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 29.0
 
July 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 31.0