AQSQID: 320030298

Site Name: Greenvalley

Location: Henderson, NV

Reporting: True, Located: True

Current AQI: 42.0

Henderson NV, US: 36.0522, -115.0569

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 26, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 27.0 μg/m3 (25) 10.2 μg/m3 (42) 42.0
 
March 26, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 22.0 μg/m3 (20) 9.4 μg/m3 (39) 39.0
 
March 26, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 20.0 μg/m3 (18) 9.4 μg/m3 (39) 39.0
 
March 26, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 18.0 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
March 26, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 19.0 μg/m3 (17) 8.9 μg/m3 (37) 37.0
 
March 26, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 19.0 μg/m3 (17) 8.6 μg/m3 (36) 36.0
 
March 26, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 8.6 μg/m3 (36) 36.0
 
March 26, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 22.0 μg/m3 (20) 8.8 μg/m3 (37) 37.0
 
March 26, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 25.0 μg/m3 (23) 9.3 μg/m3 (39) 39.0
 
March 26, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 27.0 μg/m3 (25) 10.2 μg/m3 (42) 42.0
 
March 26, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 22.0 μg/m3 (20) 8.9 μg/m3 (37) 37.0
 
March 26, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 28.0 μg/m3 (25) 8.7 μg/m3 (36) 36.0
 
March 26, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 20.0 μg/m3 (18) 7.7 μg/m3 (32) 38.0
 
March 26, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 17.0 μg/m3 (15) 7.5 μg/m3 (31) 43.0
 
March 26, 2019, midnight N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 17.0 μg/m3 (15) 7.4 μg/m3 (31) 46.0
 
March 25, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 18.0 μg/m3 (16) 7.6 μg/m3 (32) 47.0
 
March 25, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 18.0 μg/m3 (16) 7.6 μg/m3 (32) 46.0
 
March 25, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 18.0 μg/m3 (16) 7.5 μg/m3 (31) 46.0
 
March 25, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 18.0 μg/m3 (16) 7.5 μg/m3 (31) 44.0
 
March 25, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 20.0 μg/m3 (18) 7.5 μg/m3 (31) 39.0
 
March 25, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 23.0 μg/m3 (21) 8.3 μg/m3 (35) 35.0
 
March 25, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 22.0 μg/m3 (20) 8.4 μg/m3 (35) 35.0
 
March 25, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 24.0 μg/m3 (22) 8.5 μg/m3 (35) 35.0
 
March 25, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 32.0 μg/m3 (29) 11.7 μg/m3 (49) 49.0
 
March 25, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 25.0 μg/m3 (23) 10.5 μg/m3 (44) 44.0
 
March 25, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 21.0 μg/m3 (19) 9.7 μg/m3 (40) 40.0
 
March 25, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 19.0 μg/m3 (17) 9.3 μg/m3 (39) 39.0
 
March 25, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 20.0 μg/m3 (18) 9.5 μg/m3 (40) 40.0
 
March 25, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 22.0 μg/m3 (20) 11.3 μg/m3 (47) 47.0
 
March 25, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 24.0 μg/m3 (22) 13.2 μg/m3 (53) 53.0
 
March 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
March 25, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 27.0 μg/m3 (25) 11.7 μg/m3 (49) 49.0
 
March 25, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 29.0 μg/m3 (26) 12.6 μg/m3 (51) 51.0
 
March 25, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 23.0 μg/m3 (21) 9.5 μg/m3 (40) 40.0
 
March 25, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 24.0 μg/m3 (22) 10.8 μg/m3 (45) 45.0
 
March 25, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 25.0 μg/m3 (23) 10.3 μg/m3 (43) 43.0
 
March 25, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 24.0 μg/m3 (22) 10.6 μg/m3 (44) 44.0
 
March 25, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A 21.0 μg/m3 (19) 10.5 μg/m3 (44) 48.0
 
March 25, 2019, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A 20.0 μg/m3 (18) 9.8 μg/m3 (41) 49.0
 
March 24, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A 19.0 μg/m3 (17) 9.3 μg/m3 (39) 48.0
 
March 24, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A 18.0 μg/m3 (16) 8.5 μg/m3 (35) 48.0
 
March 24, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 17.0 μg/m3 (15) 7.8 μg/m3 (32) 47.0
 
March 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 17.0 μg/m3 (15) 6.9 μg/m3 (29) 43.0
 
March 24, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 13.0 μg/m3 (12) 5.6 μg/m3 (23) 40.0
 
March 24, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 13.0 μg/m3 (12) 5.4 μg/m3 (23) 37.0
 
March 24, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 12.0 μg/m3 (11) 5.1 μg/m3 (21) 35.0
 
March 24, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 12.0 μg/m3 (11) 4.8 μg/m3 (20) 33.0
 
March 24, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 16.0 μg/m3 (15) 6.5 μg/m3 (27) 29.0
 
March 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
March 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 16.0 μg/m3 (15) 6.6 μg/m3 (28) 28.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 17.0 μg/m3 (15) 6.8 μg/m3 (28) 30.0
 
March 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 17.0 μg/m3 (15) 6.3 μg/m3 (26) 31.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 17.0 μg/m3 (15) 6.3 μg/m3 (26) 34.0
 
March 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 35.0
 
March 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 16.0 μg/m3 (15) 6.6 μg/m3 (28) 36.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 13.0 μg/m3 (12) 4.6 μg/m3 (19) 32.0
 
March 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 13.0 μg/m3 (12) 3.7 μg/m3 (15) 32.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 23.0 μg/m3 (21) 4.1 μg/m3 (17) 32.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 42.0 μg/m3 (38) 6.2 μg/m3 (26) 38.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 33.0 μg/m3 (30) 5.0 μg/m3 (21) 32.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 10.0 μg/m3 (9) 3.1 μg/m3 (13) 38.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 12.0 μg/m3 (11) 3.6 μg/m3 (15) 42.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 12.0 μg/m3 (11) 3.2 μg/m3 (13) 42.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 17.0 μg/m3 (15) 2.9 μg/m3 (12) 39.0
 
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 37.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 9.0 μg/m3 (8) 2.2 μg/m3 (9) 38.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 1.8 μg/m3 (8) 35.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 14.0 μg/m3 (13) 3.2 μg/m3 (13) 39.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 13.0 μg/m3 (12) 3.4 μg/m3 (14) 38.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 13.0 μg/m3 (12) 4.1 μg/m3 (17) 32.0
 
March 23, 2019, 4 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) 4.3 μg/m3 (18) 27.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 13.0 μg/m3 (12) 4.4 μg/m3 (18) 18.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 22.0 μg/m3 (20) 4.9 μg/m3 (20) 20.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 29.0 μg/m3 (26) 8.6 μg/m3 (36) 36.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 12.0 μg/m3 (11) 4.3 μg/m3 (18) 18.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) 2.8 μg/m3 (12) 21.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 24.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 22.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 26.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 26.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 10.0 μg/m3 (9) 3.9 μg/m3 (16) 27.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 3.8 μg/m3 (16) 25.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 8.0 μg/m3 (7) 2.8 μg/m3 (12) 30.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 7.0 μg/m3 (6) 1.9 μg/m3 (8) 39.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 7.0 μg/m3 (6) 1.9 μg/m3 (8) 42.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 8.0 μg/m3 (7) 1.9 μg/m3 (8) 42.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 9.0 μg/m3 (8) 2.1 μg/m3 (9) 42.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 5.0 μg/m3 (5) 1.4 μg/m3 (6) 41.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 6.0 μg/m3 (5) 1.6 μg/m3 (7) 40.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 39.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 2.1 μg/m3 (9) 37.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 9.0 μg/m3 (8) 2.1 μg/m3 (9) 35.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 8.0 μg/m3 (7) 2.6 μg/m3 (11) 34.0
 
March 22, 2019, 3 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) 2.8 μg/m3 (12) 31.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 2.8 μg/m3 (12) 28.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 26.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 2.8 μg/m3 (12) 28.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 2.5 μg/m3 (10) 28.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) 2.6 μg/m3 (11) 29.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 8.0 μg/m3 (7) 2.7 μg/m3 (11) 30.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 2.8 μg/m3 (12) 30.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 2.2 μg/m3 (9) 30.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 35.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 5.0 μg/m3 (5) 1.6 μg/m3 (7) 36.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) 1.6 μg/m3 (7) 35.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 7.0 μg/m3 (6) 1.8 μg/m3 (8) 36.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 37.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 13.0 μg/m3 (12) 2.4 μg/m3 (10) 40.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 14.0 μg/m3 (13) 2.5 μg/m3 (10) 42.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 10.0 μg/m3 (9) 2.3 μg/m3 (10) 42.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 8.0 μg/m3 (7) 2.3 μg/m3 (10) 42.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 9.0 μg/m3 (8) 2.2 μg/m3 (9) 40.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 1.9 μg/m3 (8) 39.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 8.0 μg/m3 (7) 1.8 μg/m3 (8) 38.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 38.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 5.0 μg/m3 (5) 1.4 μg/m3 (6) 36.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 35.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 35.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 2.2 μg/m3 (9) 33.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 35.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 3.0 μg/m3 (3) 1.3 μg/m3 (5) 37.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 36.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 36.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 37.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) 2.1 μg/m3 (9) 37.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 3.3 μg/m3 (14) 35.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) 4.2 μg/m3 (18) 25.0
 
March 21, 2019, 5 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) 3.7 μg/m3 (15) 28.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 34.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 12.0 μg/m3 (11) 3.2 μg/m3 (13) 38.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 9.0 μg/m3 (8) 2.8 μg/m3 (12) 38.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 10.0 μg/m3 (9) 2.7 μg/m3 (11) 38.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 36.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 34.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 3.1 μg/m3 (13) 35.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 14.0 μg/m3 (13) 3.4 μg/m3 (14) 35.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 24.0 μg/m3 (22) 4.2 μg/m3 (18) 35.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A N/A 35.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 42.0 μg/m3 (38) 8.8 μg/m3 (37) 38.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 35.0 μg/m3 (32) 7.9 μg/m3 (33) 33.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 25.0 μg/m3 (23) 6.5 μg/m3 (27) 27.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 18.0 μg/m3 (16) 5.4 μg/m3 (23) 23.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 17.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
March 20, 2019, 11 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) 5.4 μg/m3 (23) 23.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 17.0 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 19.0 μg/m3 (17) 5.6 μg/m3 (23) 23.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 22.0 μg/m3 (20) 6.3 μg/m3 (26) 26.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 21.0 μg/m3 (19) 6.5 μg/m3 (27) 27.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 19.0 μg/m3 (17) 6.2 μg/m3 (26) 26.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 19.0 μg/m3 (17) 7.4 μg/m3 (31) 31.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 27.0 μg/m3 (25) 6.5 μg/m3 (27) 27.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 20.0 μg/m3 (18) 6.4 μg/m3 (27) 27.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 4.6 μg/m3 (19) 28.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 10.0 μg/m3 (9) 3.3 μg/m3 (14) 37.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 39.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 40.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 3.1 μg/m3 (13) 39.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 11.0 μg/m3 (10) 3.3 μg/m3 (14) 36.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) 3.1 μg/m3 (13) 35.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 9.0 μg/m3 (8) 3.3 μg/m3 (14) 32.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 11.0 μg/m3 (10) 3.3 μg/m3 (14) 32.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 17.0 μg/m3 (15) 4.7 μg/m3 (20) 26.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 24.0 μg/m3 (22) 7.3 μg/m3 (30) 30.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 33.0 μg/m3 (30) 9.1 μg/m3 (38) 38.0