AQSQID: 320311005

Site Name: Sparks

Location: Sparks, NV

Reporting: True, Located: True

Current AQI: 30.0

Sparks NV, US: 39.540916, -119.746758

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.2 ppb (2) 20.0 μg/m3 (18) 2.0 μg/m3 (8) 30.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 16.0 μg/m3 (15) 2.0 μg/m3 (8) 35.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.1 ppb (1) 10.0 μg/m3 (9) 0.0 μg/m3 (0) 35.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 14.0 μg/m3 (13) -2.0 μg/m3 (0) 35.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.1 ppb (1) 18.0 μg/m3 (16) 0.0 μg/m3 (0) 33.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.1 ppb (1) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 33.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.1 ppb (1) 21.0 μg/m3 (19) 3.0 μg/m3 (12) 34.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.1 ppb (1) 18.0 μg/m3 (16) 3.0 μg/m3 (12) 34.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.1 ppb (1) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 33.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.2 ppb (2) 34.0 μg/m3 (31) 10.0 μg/m3 (42) 42.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 57.0 μg/m3 (51) 7.0 μg/m3 (29) 51.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.5 ppb (6) N/A N/A 9.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.6 ppb (7) 45.0 μg/m3 (41) 10.0 μg/m3 (42) 42.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.2 ppb (13) 56.0 μg/m3 (50) 9.0 μg/m3 (38) 50.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (11) 54.0 μg/m3 (49) 13.0 μg/m3 (52) 52.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 42.0 μg/m3 (38) 7.0 μg/m3 (29) 38.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 32.0 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 22.0 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 25.0 μg/m3 (23) 17.0 μg/m3 (61) 61.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 38.0 μg/m3 (35) 8.0 μg/m3 (33) 35.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 57.0 μg/m3 (51) 4.0 μg/m3 (17) 51.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.6 ppb (7) 78.0 μg/m3 (62) 3.0 μg/m3 (12) 62.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 29.0 μg/m3 (26) -1.0 μg/m3 (0) 26.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 16.0 μg/m3 (15) -1.0 μg/m3 (0) 24.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 9.0 μg/m3 (8) -2.0 μg/m3 (0) 32.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 15.0 μg/m3 (14) -1.0 μg/m3 (0) 36.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.2 ppb (2) 11.0 μg/m3 (10) -1.0 μg/m3 (0) 39.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.2 ppb (2) 13.0 μg/m3 (12) 0.0 μg/m3 (0) 41.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.2 ppb (2) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 41.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.2 ppb (2) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 39.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 17.0 μg/m3 (15) 2.0 μg/m3 (8) 35.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 31.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.4 ppb (4) 53.0 μg/m3 (48) 12.0 μg/m3 (50) 50.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.6 ppb (7) N/A N/A 14.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.9 ppb (10) 111.0 μg/m3 (78) 19.0 μg/m3 (65) 78.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 1.1 ppb (12) 61.0 μg/m3 (53) 9.0 μg/m3 (38) 53.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.6 ppb (18) 60.0 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (11) 49.0 μg/m3 (45) 7.0 μg/m3 (29) 45.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 34.0 μg/m3 (31) 6.0 μg/m3 (25) 31.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 37.0 μg/m3 (34) 6.0 μg/m3 (25) 34.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 26.0 μg/m3 (24) 1.0 μg/m3 (4) 24.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.4 ppb (4) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.5 ppb (6) 23.0 μg/m3 (21) 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) 0.5 ppb (6) 22.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.4 ppb (4) 24.0 μg/m3 (22) 2.0 μg/m3 (8) 22.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.4 ppb (4) 24.0 μg/m3 (22) 3.0 μg/m3 (12) 22.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.3 ppb (3) 20.0 μg/m3 (18) 4.0 μg/m3 (17) 22.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 9.0 μg/m3 (8) -1.0 μg/m3 (0) 29.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 5.0 μg/m3 (5) -3.0 μg/m3 (0) 36.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 38.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.2 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 38.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.2 ppb (2) 8.0 μg/m3 (7) 0.0 μg/m3 (0) 38.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.2 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 37.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 35.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 32.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 27.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 28.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.5 ppb (6) 29.0 μg/m3 (26) 7.0 μg/m3 (29) 29.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.6 ppb (7) 32.0 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (9) 39.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 25.0 μg/m3 (23) 5.0 μg/m3 (21) 23.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 31.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 34.0 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (9) 40.0 μg/m3 (36) 11.0 μg/m3 (46) 46.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.9 ppb (10) 53.0 μg/m3 (48) 14.0 μg/m3 (54) 54.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.8 ppb (9) 53.0 μg/m3 (48) 10.0 μg/m3 (42) 48.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 0.8 ppb (9) 49.0 μg/m3 (45) 12.0 μg/m3 (50) 50.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 27.0 μg/m3 (25) 1.0 μg/m3 (4) 25.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.3 ppb (3) 23.0 μg/m3 (21) 1.0 μg/m3 (4) 23.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 33.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 12.0 μg/m3 (11) 0.0 μg/m3 (0) 35.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 2.0 μg/m3 (2) -2.0 μg/m3 (0) 35.0
 
March 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 3.0 μg/m3 (3) -3.0 μg/m3 (0) 35.0
 
March 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 35.0
 
March 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 36.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 35.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 13.0 μg/m3 (12) 4.0 μg/m3 (17) 32.0
 
March 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.3 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 27.0
 
March 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.4 ppb (4) 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.6 ppb (7) 29.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.6 ppb (7) 32.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (11) 37.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
March 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 42.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 33.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
March 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 31.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
March 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 30.0 μg/m3 (27) 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 37.0 μg/m3 (34) 13.0 μg/m3 (52) 52.0
 
March 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 29.0 μg/m3 (26) 7.0 μg/m3 (29) 29.0
 
March 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.7 ppb (8) 39.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
March 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.5 ppb (6) 25.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
March 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.3 ppb (3) 17.0 μg/m3 (15) 0.0 μg/m3 (0) 20.0
 
March 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 7.0 μg/m3 (6) 0.0 μg/m3 (0) 31.0
 
March 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 7.0 μg/m3 (6) -2.0 μg/m3 (0) 32.0
 
March 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 7.0 μg/m3 (6) -2.0 μg/m3 (0) 34.0
 
March 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 36.0
 
March 16, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.2 ppb (2) 5.0 μg/m3 (5) 1.0 μg/m3 (4) 37.0
 
March 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 7.0 μg/m3 (6) -1.0 μg/m3 (0) 38.0
 
March 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 7.0 μg/m3 (6) 0.0 μg/m3 (0) 38.0
 
March 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 2.0 μg/m3 (2) 2.0 μg/m3 (8) 38.0
 
March 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 36.0
 
March 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 10.0 μg/m3 (9) 2.0 μg/m3 (8) 35.0
 
March 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 26.0
 
March 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.6 ppb (7) 69.0 μg/m3 (57) 10.0 μg/m3 (42) 57.0
 
March 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 1.1 ppb (12) 67.0 μg/m3 (56) 12.0 μg/m3 (50) 56.0
 
March 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 1.3 ppb (14) 79.0 μg/m3 (62) 14.0 μg/m3 (54) 62.0
 
March 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.5 ppb (17) 77.0 μg/m3 (61) 8.0 μg/m3 (33) 61.0
 
March 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.2 ppb (13) 67.0 μg/m3 (56) 7.0 μg/m3 (29) 56.0
 
March 15, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 38.0 μg/m3 (35) 4.0 μg/m3 (17) 35.0
 
March 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 21.0 μg/m3 (19) 2.0 μg/m3 (8) 19.0
 
March 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 23.0 μg/m3 (21) 3.0 μg/m3 (12) 21.0
 
March 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 29.0 μg/m3 (26) 3.0 μg/m3 (12) 26.0
 
March 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.3 ppb (3) 15.0 μg/m3 (14) -3.0 μg/m3 (0) 14.0
 
March 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 7.0 μg/m3 (6) -2.0 μg/m3 (0) 26.0
 
March 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 26.0
 
March 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 28.0
 
March 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 7.0 μg/m3 (6) -1.0 μg/m3 (0) 32.0
 
March 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 9.0 μg/m3 (8) 0.0 μg/m3 (0) 35.0
 
March 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 8.0 μg/m3 (7) -3.0 μg/m3 (0) 34.0
 
March 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.2 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 35.0
 
March 15, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 38.0
 
March 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 38.0
 
March 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (4) 38.0
 
March 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.2 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 38.0
 
March 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.2 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 37.0
 
March 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 36.0
 
March 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 34.0
 
March 14, 2019, 5 p.m. 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) 3.0 μg/m3 (12) 28.0
 
March 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.3 ppb (3) 30.0 μg/m3 (27) 5.0 μg/m3 (21) 27.0
 
March 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.9 ppb (10) 39.0 μg/m3 (35) 7.0 μg/m3 (29) 35.0
 
March 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.7 ppb (19) 58.0 μg/m3 (52) 8.0 μg/m3 (33) 52.0
 
March 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.1 ppb (12) 29.0 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
March 14, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 18.0 μg/m3 (16) -1.0 μg/m3 (0) 16.0
 
March 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 18.0 μg/m3 (16) 0.0 μg/m3 (0) 16.0
 
March 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 13.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
March 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.5 ppb (6) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
March 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.5 ppb (6) 19.0 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
March 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
March 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.5 ppb (6) 26.0 μg/m3 (24) 2.0 μg/m3 (8) 24.0
 
March 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 13.0 μg/m3 (12) 0.0 μg/m3 (0) 14.0
 
March 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.3 ppb (3) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 25.0
 
March 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.3 ppb (3) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 30.0
 
March 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.3 ppb (3) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 35.0
 
March 14, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 0.0 μg/m3 (0) -1.0 μg/m3 (0) 35.0
 
March 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 36.0
 
March 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 7.0 μg/m3 (6) -2.0 μg/m3 (0) 36.0
 
March 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.2 ppb (2) 6.0 μg/m3 (5) 0.0 μg/m3 (0) 36.0
 
March 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.2 ppb (2) 19.0 μg/m3 (17) 0.0 μg/m3 (0) 37.0
 
March 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 5.0
 
March 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 5.0
 
March 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.0 μg/m3 (4) 6.0
 
March 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.4 ppb (4) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 28.0
 
March 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.3 ppb (3) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 25.0
 
March 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.7 ppb (8) 21.0 μg/m3 (19) 1.0 μg/m3 (4) 19.0
 
March 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.4 ppb (4) 9.0 μg/m3 (8) -2.0 μg/m3 (0) 13.0
 
March 13, 2019, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.2 ppb (2) 7.0 μg/m3 (6) -4.0 μg/m3 (0) 22.0
 
March 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 4.0 μg/m3 (4) -4.0 μg/m3 (0) 28.0
 
March 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.2 ppb (2) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 30.0
 
March 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 32.0
 
March 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 2.0 μg/m3 (2) 3.0 μg/m3 (12) 33.0
 
March 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (4) 32.0
 
March 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 32.0
 
March 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 33.0
 
March 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 8.0 μg/m3 (7) 0.0 μg/m3 (0) 32.0