ID: 969

AQSQID: 320311005

Site Name: Sparks

Added: April 21, 2020, 6:24 p.m.

Updated: May 13, 2021, 11:46 a.m.

Location: Sparks (4th St), NV

Reporting: True, Located: True

Current AQI: 34.0

Sparks (4th St) NV, US: 39.54092, -119.746764

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 29, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.4 ppb (5) 18.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
April 29, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.4 ppb (5) 21.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
April 29, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.4 ppb (5) 20.0 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
April 29, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.4 ppb (5) 30.0 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
April 29, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.5 ppb (6) 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
April 29, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.4 ppb (5) 19.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
April 29, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 12.0 μg/m3 (12) 0.0 μg/m3 (0) 26.0
 
April 29, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 11.0 μg/m3 (11) -1.0 μg/m3 (0) 41.0
 
April 29, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 9.0 μg/m3 (9) -1.0 μg/m3 (0) 46.0
 
April 29, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 6.0 μg/m3 (6) -2.0 μg/m3 (0) 51.0
 
April 29, 2021, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 10.0 μg/m3 (10) -2.0 μg/m3 (0) 61.0
 
April 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.2 ppb (3) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 65.0
 
April 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.1 ppb (2) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 58.0
 
April 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.1 ppb (2) 15.0 μg/m3 (14) 3.0 μg/m3 (13) 58.0
 
April 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.1 ppb (2) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 51.0
 
April 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 49.0
 
April 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 33.0 μg/m3 (31) 2.0 μg/m3 (9) 44.0
 
April 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.3 ppb (4) 27.0 μg/m3 (25) 6.0 μg/m3 (25) 35.0
 
April 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.4 ppb (5) 29.0 μg/m3 (27) 6.0 μg/m3 (25) 27.0
 
April 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.4 ppb (5) 34.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
April 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.6 ppb (7) 36.0 μg/m3 (34) 11.0 μg/m3 (46) 46.0
 
April 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (10) 37.0 μg/m3 (35) 8.0 μg/m3 (34) 35.0
 
April 28, 2021, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.7 ppb (8) 24.0 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
April 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 23.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
April 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
April 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 22.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
April 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.5 ppb (6) 21.0 μg/m3 (20) 3.0 μg/m3 (13) 20.0
 
April 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.4 ppb (5) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
April 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.4 ppb (5) 25.0 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
April 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.4 ppb (5) 28.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
April 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.3 ppb (4) 38.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
April 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.2 ppb (3) 38.0 μg/m3 (36) 4.0 μg/m3 (17) 36.0
 
April 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 10.0 μg/m3 (10) -3.0 μg/m3 (0) 43.0
 
April 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 10.0 μg/m3 (10) -1.0 μg/m3 (0) 45.0
 
April 28, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 44.0
 
April 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 42.0
 
April 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 39.0
 
April 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 9.0 μg/m3 (9) 0.0 μg/m3 (0) 39.0
 
April 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 9.0 μg/m3 (9) -1.0 μg/m3 (0) 38.0
 
April 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 11.0 μg/m3 (11) 0.0 μg/m3 (0) 38.0
 
April 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 37.0
 
April 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 34.0
 
April 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.2 ppb (3) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 32.0
 
April 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.2 ppb (3) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 32.0
 
April 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.2 ppb (3) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 32.0
 
April 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.2 ppb (3) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 31.0
 
April 27, 2021, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.2 ppb (3) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 31.0
 
April 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.2 ppb (3) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 26.0
 
April 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.2 ppb (3) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 27.0
 
April 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.2 ppb (3) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 30.0
 
April 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.2 ppb (3) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 25.0
 
April 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 28.0
 
April 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.2 ppb (3) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 30.0
 
April 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 34.0
 
April 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 37.0
 
April 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 38.0
 
April 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 38.0
 
April 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 39.0
 
April 27, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 38.0
 
April 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 39.0
 
April 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 40.0
 
April 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 9.0 μg/m3 (9) -1.0 μg/m3 (0) 41.0
 
April 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 42.0
 
April 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 42.0
 
April 26, 2021, 6 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
 
April 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 5.0
 
April 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 40.0
 
April 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.2 ppb (3) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 35.0
 
April 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.3 ppb (4) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 29.0
 
April 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.3 ppb (4) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 25.0
 
April 26, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 29.0
 
April 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 38.0
 
April 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 38.0
 
April 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 37.0
 
April 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 38.0
 
April 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 38.0
 
April 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) -1.0 μg/m3 (0) 0.0 μg/m3 (0) 37.0
 
April 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 37.0
 
April 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 8.0 μg/m3 (8) -1.0 μg/m3 (0) 38.0
 
April 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 37.0
 
April 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 5.0 μg/m3 (5) -3.0 μg/m3 (0) 37.0
 
April 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 6.0 μg/m3 (6) -3.0 μg/m3 (0) 38.0
 
April 26, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 10.0 μg/m3 (10) -1.0 μg/m3 (0) 38.0
 
April 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 9.0 μg/m3 (9) -2.0 μg/m3 (0) 38.0
 
April 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 12.0 μg/m3 (12) -1.0 μg/m3 (0) 40.0
 
April 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 15.0 μg/m3 (14) 2.0 μg/m3 (9) 43.0
 
April 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 43.0
 
April 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 47.0
 
April 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 49.0
 
April 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.1 ppb (2) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 50.0
 
April 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 49.0
 
April 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 48.0
 
April 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 48.0
 
April 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 48.0
 
April 25, 2021, noon N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 46.0
 
April 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 12.0 μg/m3 (12) 1.0 μg/m3 (5) 45.0
 
April 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 45.0
 
April 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 47.0
 
April 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 46.0
 
April 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 47.0
 
April 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 43.0
 
April 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 42.0
 
April 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 42.0
 
April 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 43.0
 
April 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 44.0
 
April 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 43.0
 
April 25, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 43.0
 
April 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 43.0
 
April 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 42.0
 
April 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 40.0
 
April 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 12.0 μg/m3 (12) 1.0 μg/m3 (5) 39.0
 
April 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 42.0
 
April 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 42.0
 
April 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 41.0
 
April 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 42.0
 
April 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 43.0
 
April 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 41.0
 
April 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 40.0
 
April 24, 2021, noon N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 22.0 μg/m3 (21) 2.0 μg/m3 (9) 42.0
 
April 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 42.0 μg/m3 (39) 2.0 μg/m3 (9) 39.0
 
April 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 35.0 μg/m3 (33) 3.0 μg/m3 (13) 35.0
 
April 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 17.0 μg/m3 (16) 4.0 μg/m3 (17) 35.0
 
April 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 43.0
 
April 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 16.0 μg/m3 (15) 7.0 μg/m3 (30) 38.0
 
April 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
April 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 39.0
 
April 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 24.0 μg/m3 (23) 6.0 μg/m3 (25) 40.0
 
April 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 40.0
 
April 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 24.0 μg/m3 (23) 6.0 μg/m3 (25) 42.0
 
April 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 31.0 μg/m3 (29) 4.0 μg/m3 (17) 42.0
 
April 24, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 44.0
 
April 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 21.0 μg/m3 (20) 4.0 μg/m3 (17) 45.0
 
April 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) 26.0 μg/m3 (25) 3.0 μg/m3 (13) 47.0
 
April 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 48.0
 
April 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 49.0
 
April 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 24.0 μg/m3 (23) 9.0 μg/m3 (38) 45.0
 
April 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 30.0 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
April 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 29.0 μg/m3 (27) 9.0 μg/m3 (38) 38.0
 
April 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.3 ppb (4) 32.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
April 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.3 ppb (4) 41.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
April 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.6 ppb (7) 51.0 μg/m3 (48) 14.0 μg/m3 (55) 55.0
 
April 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.6 ppb (7) 43.0 μg/m3 (40) 6.0 μg/m3 (25) 40.0
 
April 23, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
April 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.2 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 27.0
 
April 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 37.0
 
April 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 38.0
 
April 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.2 ppb (3) 16.0 μg/m3 (15) 2.0 μg/m3 (9) 36.0
 
April 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 19.0 μg/m3 (18) 5.0 μg/m3 (21) 38.0
 
April 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 16.0 μg/m3 (15) 8.0 μg/m3 (34) 42.0
 
April 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 18.0 μg/m3 (17) 6.0 μg/m3 (25) 42.0
 
April 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 23.0 μg/m3 (22) 4.0 μg/m3 (17) 42.0
 
April 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 40.0
 
April 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 23.0 μg/m3 (22) 6.0 μg/m3 (25) 40.0
 
April 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 29.0 μg/m3 (27) 6.0 μg/m3 (25) 41.0
 
April 23, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 40.0 μg/m3 (38) 8.0 μg/m3 (34) 40.0
 
April 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 21.0 μg/m3 (20) 8.0 μg/m3 (34) 41.0
 
April 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 21.0 μg/m3 (20) 5.0 μg/m3 (21) 46.0
 
April 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 18.0 μg/m3 (17) 5.0 μg/m3 (21) 45.0
 
April 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 44.0
 
April 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 23.0 μg/m3 (22) 5.0 μg/m3 (21) 43.0
 
April 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) N/A N/A 40.0
 
April 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.3 ppb (4) 23.0 μg/m3 (22) 6.0 μg/m3 (25) 30.0
 
April 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.4 ppb (5) 29.0 μg/m3 (27) 7.0 μg/m3 (30) 30.0
 
April 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.5 ppb (6) 49.0 μg/m3 (46) 10.0 μg/m3 (42) 46.0
 
April 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.7 ppb (8) 38.0 μg/m3 (36) 10.0 μg/m3 (42) 42.0
 
April 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.8 ppb (10) 43.0 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
April 22, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 33.0 μg/m3 (31) 6.0 μg/m3 (25) 31.0
 
April 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.4 ppb (5) 25.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0