ID: 969

AQSQID: 320311005

Site Name: Sparks

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

Updated: Sept. 22, 2021, 6:58 a.m.

Location: Sparks (4th St), NV

Reporting: True, Located: True

Current AQI: 53.0

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
Sept. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.5 ppb (6) 58.0 μg/m3 (53) 13.0 μg/m3 (53) 53.0
 
Sept. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.6 ppb (7) 55.0 μg/m3 (51) 12.0 μg/m3 (50) 51.0
 
Sept. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.5 ppb (6) 45.0 μg/m3 (42) 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.3 ppb (4) 36.0 μg/m3 (34) 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.3 ppb (4) 38.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 36.0 μg/m3 (34) 17.0 μg/m3 (62) 62.0
 
Sept. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) 37.0 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 30.0 μg/m3 (28) 16.0 μg/m3 (60) 60.0
 
Sept. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 37.0 μg/m3 (35) 13.0 μg/m3 (53) 53.0
 
Sept. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 35.0 μg/m3 (33) 7.0 μg/m3 (30) 42.0
 
Sept. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 32.0 μg/m3 (30) 6.0 μg/m3 (25) 37.0
 
Sept. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.2 ppb (3) 35.0 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
Sept. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.3 ppb (4) 52.0 μg/m3 (49) 4.0 μg/m3 (17) 49.0
 
Sept. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.6 ppb (7) 46.0 μg/m3 (43) 8.0 μg/m3 (34) 43.0
 
Sept. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.8 ppb (10) 98.0 μg/m3 (73) 10.0 μg/m3 (42) 73.0
 
Sept. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.9 ppb (11) 64.0 μg/m3 (56) 4.0 μg/m3 (17) 56.0
 
Sept. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 39.0 μg/m3 (37) 2.0 μg/m3 (9) 37.0
 
Sept. 21, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.4 ppb (5) 31.0 μg/m3 (29) 4.0 μg/m3 (17) 29.0
 
Sept. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.4 ppb (5) 22.0 μg/m3 (21) 3.0 μg/m3 (13) 21.0
 
Sept. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.3 ppb (4) 22.0 μg/m3 (21) 2.0 μg/m3 (9) 21.0
 
Sept. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.3 ppb (4) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Sept. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.4 ppb (5) 26.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
Sept. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.4 ppb (5) 28.0 μg/m3 (26) 3.0 μg/m3 (13) 26.0
 
Sept. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.6 ppb (7) 30.0 μg/m3 (28) 5.0 μg/m3 (21) 28.0
 
Sept. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.5 ppb (6) 27.0 μg/m3 (25) 3.0 μg/m3 (13) 25.0
 
Sept. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.4 ppb (5) 29.0 μg/m3 (27) 2.0 μg/m3 (9) 27.0
 
Sept. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.2 ppb (3) 17.0 μg/m3 (16) 2.0 μg/m3 (9) 31.0
 
Sept. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 39.0
 
Sept. 21, 2021, 1 a.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) -2.0 μg/m3 (0) 41.0
 
Sept. 21, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 13.0 μg/m3 (13) -1.0 μg/m3 (0) 42.0
 
Sept. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 19.0 μg/m3 (18) 2.0 μg/m3 (9) 42.0
 
Sept. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 21.0 μg/m3 (20) 3.0 μg/m3 (13) 40.0
 
Sept. 20, 2021, 9 p.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) 2.0 μg/m3 (9) 39.0
 
Sept. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 22.0 μg/m3 (21) 5.0 μg/m3 (21) 38.0
 
Sept. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 21.0 μg/m3 (20) 5.0 μg/m3 (21) 38.0
 
Sept. 20, 2021, 6 p.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) 3.0 μg/m3 (13) 36.0
 
Sept. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.2 ppb (3) 24.0 μg/m3 (23) 6.0 μg/m3 (25) 35.0
 
Sept. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) N/A N/A 33.0
 
Sept. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.3 ppb (4) 31.0 μg/m3 (29) 2.0 μg/m3 (9) 29.0
 
Sept. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.7 ppb (8) 31.0 μg/m3 (29) 0.0 μg/m3 (0) 29.0
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 33.0 μg/m3 (31) 3.0 μg/m3 (13) 31.0
 
Sept. 20, 2021, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.4 ppb (5) 23.0 μg/m3 (22) 5.0 μg/m3 (21) 22.0
 
Sept. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.3 ppb (4) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 17.0
 
Sept. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.2 ppb (3) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 13.0
 
Sept. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.2 ppb (3) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 14.0
 
Sept. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.2 ppb (3) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 21.0
 
Sept. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.2 ppb (3) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 25.0
 
Sept. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 14.0 μg/m3 (13) -1.0 μg/m3 (0) 29.0
 
Sept. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.2 ppb (3) 6.0 μg/m3 (6) -1.0 μg/m3 (0) 31.0
 
Sept. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 6.0 μg/m3 (6) -3.0 μg/m3 (0) 33.0
 
Sept. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.2 ppb (3) 8.0 μg/m3 (8) -5.0 μg/m3 (0) 35.0
 
Sept. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.2 ppb (3) 17.0 μg/m3 (16) -3.0 μg/m3 (0) 36.0
 
Sept. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 23.0 μg/m3 (22) -2.0 μg/m3 (0) 38.0
 
Sept. 20, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 17.0 μg/m3 (16) -1.0 μg/m3 (0) 41.0
 
Sept. 19, 2021, 11 p.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) -1.0 μg/m3 (0) 45.0
 
Sept. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 47.0
 
Sept. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 43.0
 
Sept. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 41.0
 
Sept. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 16.0 μg/m3 (15) 0.0 μg/m3 (0) 39.0
 
Sept. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 15.0 μg/m3 (14) -1.0 μg/m3 (0) 38.0
 
Sept. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 19.0 μg/m3 (18) -4.0 μg/m3 (0) 38.0
 
Sept. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.1 ppb (2) 10.0 μg/m3 (10) -4.0 μg/m3 (0) 36.0
 
Sept. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.1 ppb (2) 9.0 μg/m3 (9) -6.0 μg/m3 (0) 33.0
 
Sept. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.1 ppb (2) 6.0 μg/m3 (6) -4.0 μg/m3 (0) 32.0
 
Sept. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.1 ppb (2) 8.0 μg/m3 (8) -1.0 μg/m3 (0) 27.0
 
Sept. 19, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.1 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 26.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.1 ppb (2) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 25.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.1 ppb (2) 12.0 μg/m3 (12) -1.0 μg/m3 (0) 26.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.1 ppb (2) 10.0 μg/m3 (10) -1.0 μg/m3 (0) 26.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.1 ppb (2) 11.0 μg/m3 (11) -1.0 μg/m3 (0) 27.0
 
Sept. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 7.0 μg/m3 (7) 0.0 μg/m3 (0) 34.0
 
Sept. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 38.0
 
Sept. 19, 2021, 5 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) 0.0 μg/m3 (0) 40.0
 
Sept. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 16.0 μg/m3 (15) -2.0 μg/m3 (0) 45.0
 
Sept. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 14.0 μg/m3 (13) -2.0 μg/m3 (0) 47.0
 
Sept. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 20.0 μg/m3 (19) -2.0 μg/m3 (0) 47.0
 
Sept. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 17.0 μg/m3 (16) -1.0 μg/m3 (0) 47.0
 
Sept. 19, 2021, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 22.0 μg/m3 (21) 1.0 μg/m3 (5) 47.0
 
Sept. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 28.0 μg/m3 (26) 1.0 μg/m3 (5) 46.0
 
Sept. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 36.0 μg/m3 (34) 3.0 μg/m3 (13) 46.0
 
Sept. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 56.0 μg/m3 (52) 4.0 μg/m3 (17) 52.0
 
Sept. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 75.0 μg/m3 (61) 4.0 μg/m3 (17) 61.0
 
Sept. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 64.0 μg/m3 (56) 3.0 μg/m3 (13) 56.0
 
Sept. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 32.0 μg/m3 (30) 4.0 μg/m3 (17) 44.0
 
Sept. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 38.0 μg/m3 (36) 8.0 μg/m3 (34) 43.0
 
Sept. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.3 ppb (4) 46.0 μg/m3 (43) 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.4 ppb (5) 58.0 μg/m3 (53) 21.0 μg/m3 (70) 70.0
 
Sept. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.4 ppb (5) 45.0 μg/m3 (42) 16.0 μg/m3 (60) 60.0
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.4 ppb (5) 46.0 μg/m3 (43) 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.4 ppb (5) 50.0 μg/m3 (47) 22.0 μg/m3 (72) 72.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.3 ppb (4) 37.0 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.3 ppb (4) 31.0 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.2 ppb (3) 26.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.2 ppb (3) 30.0 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.3 ppb (4) 31.0 μg/m3 (29) 8.0 μg/m3 (34) 34.0
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.3 ppb (4) 35.0 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 34.0 μg/m3 (32) 5.0 μg/m3 (21) 40.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 28.0 μg/m3 (26) 8.0 μg/m3 (34) 43.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.3 ppb (4) 34.0 μg/m3 (32) 13.0 μg/m3 (53) 53.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 33.0 μg/m3 (31) 7.0 μg/m3 (30) 51.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 50.0 μg/m3 (47) 7.0 μg/m3 (30) 51.0
 
Sept. 18, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) 0.3 ppb (4) 39.0 μg/m3 (37) 15.0 μg/m3 (58) 58.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.3 ppb (4) 46.0 μg/m3 (43) 23.0 μg/m3 (74) 74.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) 0.3 ppb (4) 59.0 μg/m3 (53) 31.0 μg/m3 (91) 91.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.3 ppb (4) 62.0 μg/m3 (55) 39.0 μg/m3 (110) 110.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.3 ppb (4) 60.0 μg/m3 (54) 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.3 ppb (4) 54.0 μg/m3 (50) 20.0 μg/m3 (68) 68.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.4 ppb (5) 70.0 μg/m3 (59) 27.0 μg/m3 (83) 83.0
 
Sept. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.5 ppb (6) 77.0 μg/m3 (62) 26.0 μg/m3 (81) 81.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.6 ppb (7) 71.0 μg/m3 (59) 23.0 μg/m3 (74) 74.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.7 ppb (8) 63.0 μg/m3 (55) 18.0 μg/m3 (64) 64.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.8 ppb (10) 63.0 μg/m3 (55) 13.0 μg/m3 (53) 55.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (12) 56.0 μg/m3 (52) 9.0 μg/m3 (38) 52.0
 
Sept. 17, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 42.0 μg/m3 (39) 14.0 μg/m3 (55) 55.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.5 ppb (6) 39.0 μg/m3 (37) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.4 ppb (5) 38.0 μg/m3 (36) 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.4 ppb (5) 39.0 μg/m3 (37) 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.5 ppb (6) 39.0 μg/m3 (37) 13.0 μg/m3 (53) 53.0
 
Sept. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.5 ppb (6) 46.0 μg/m3 (43) 9.0 μg/m3 (38) 43.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.5 ppb (6) 39.0 μg/m3 (37) 11.0 μg/m3 (46) 46.0
 
Sept. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.4 ppb (5) 52.0 μg/m3 (49) 17.0 μg/m3 (62) 62.0
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.4 ppb (5) 38.0 μg/m3 (36) 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.3 ppb (4) 40.0 μg/m3 (38) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.3 ppb (4) 45.0 μg/m3 (42) 17.0 μg/m3 (62) 62.0
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.3 ppb (4) 50.0 μg/m3 (47) 22.0 μg/m3 (72) 72.0
 
Sept. 17, 2021, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (81) 0.3 ppb (4) 39.0 μg/m3 (37) 17.0 μg/m3 (62) 81.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.2 ppb (3) 33.0 μg/m3 (31) 19.0 μg/m3 (66) 84.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) 0.2 ppb (3) 42.0 μg/m3 (39) 17.0 μg/m3 (62) 91.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) 0.2 ppb (3) 36.0 μg/m3 (34) 18.0 μg/m3 (64) 91.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.2 ppb (3) 46.0 μg/m3 (43) 15.0 μg/m3 (58) 84.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.2 ppb (3) 45.0 μg/m3 (42) 17.0 μg/m3 (62) 74.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.3 ppb (4) 44.0 μg/m3 (41) 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.3 ppb (4) 57.0 μg/m3 (52) 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.4 ppb (5) 53.0 μg/m3 (50) 13.0 μg/m3 (53) 53.0
 
Sept. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.6 ppb (7) 86.0 μg/m3 (67) 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.0 ppb (12) 79.0 μg/m3 (63) 17.0 μg/m3 (62) 63.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 64.0 μg/m3 (56) 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.4 ppb (5) 43.0 μg/m3 (40) 12.0 μg/m3 (50) 50.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.3 ppb (4) 39.0 μg/m3 (37) 15.0 μg/m3 (58) 58.0
 
Sept. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.2 ppb (3) 28.0 μg/m3 (26) 13.0 μg/m3 (53) 53.0
 
Sept. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 23.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 32.0 μg/m3 (30) 14.0 μg/m3 (55) 55.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.2 ppb (3) 27.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 19.0 μg/m3 (18) 10.0 μg/m3 (42) 51.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 32.0 μg/m3 (30) 11.0 μg/m3 (46) 61.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) 0.2 ppb (3) 31.0 μg/m3 (29) 14.0 μg/m3 (55) 68.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) 0.3 ppb (4) 40.0 μg/m3 (38) 19.0 μg/m3 (66) 68.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) 0.3 ppb (4) 50.0 μg/m3 (47) 18.0 μg/m3 (64) 68.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.3 ppb (4) 45.0 μg/m3 (42) 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.3 ppb (4) 55.0 μg/m3 (51) 16.0 μg/m3 (60) 60.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) 0.3 ppb (4) 56.0 μg/m3 (52) 24.0 μg/m3 (77) 77.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) 0.3 ppb (4) 38.0 μg/m3 (36) 15.0 μg/m3 (58) 97.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.2 ppb (3) 27.0 μg/m3 (25) 17.0 μg/m3 (62) 84.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.2 ppb (3) 42.0 μg/m3 (39) 21.0 μg/m3 (70) 84.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) 0.3 ppb (4) 47.0 μg/m3 (44) 19.0 μg/m3 (66) 78.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) 0.4 ppb (5) 56.0 μg/m3 (52) 22.0 μg/m3 (72) 72.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.5 ppb (6) 75.0 μg/m3 (61) 28.0 μg/m3 (85) 85.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.8 ppb (10) 129.0 μg/m3 (88) 33.0 μg/m3 (95) 95.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.9 ppb (11) 91.0 μg/m3 (69) 26.0 μg/m3 (81) 81.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.2 ppb (14) 77.0 μg/m3 (62) 18.0 μg/m3 (64) 64.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.8 ppb (10) 64.0 μg/m3 (56) 15.0 μg/m3 (58) 58.0
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 52.0 μg/m3 (49) 19.0 μg/m3 (66) 66.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 44.0 μg/m3 (41) 15.0 μg/m3 (58) 58.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.4 ppb (5) 41.0 μg/m3 (38) 11.0 μg/m3 (46) 46.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.5 ppb (6) 43.0 μg/m3 (40) 15.0 μg/m3 (58) 58.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.5 ppb (6) 45.0 μg/m3 (42) 16.0 μg/m3 (60) 60.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.6 ppb (7) 47.0 μg/m3 (44) 13.0 μg/m3 (53) 53.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.7 ppb (8) 46.0 μg/m3 (43) 18.0 μg/m3 (64) 64.0