ID: 969

AQSQID: 320311005

Site Name: Sparks

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

Updated: May 13, 2021, 12:45 p.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
May 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.3 ppb (4) 27.0 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
May 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.3 ppb (4) 31.0 μg/m3 (29) 8.0 μg/m3 (34) 34.0
 
May 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 25.0 μg/m3 (24) 6.0 μg/m3 (25) 26.0
 
May 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 33.0
 
May 13, 2021, 7 a.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) -1.0 μg/m3 (0) 43.0
 
May 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 21.0 μg/m3 (20) -1.0 μg/m3 (0) 49.0
 
May 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) 0.2 ppb (3) 15.0 μg/m3 (14) 1.0 μg/m3 (5) 55.0
 
May 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.2 ppb (3) 24.0 μg/m3 (23) 1.0 μg/m3 (5) 58.0
 
May 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) 0.2 ppb (3) 23.0 μg/m3 (22) -1.0 μg/m3 (0) 55.0
 
May 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 21.0 μg/m3 (20) 2.0 μg/m3 (9) 61.0
 
May 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 24.0 μg/m3 (23) 6.0 μg/m3 (25) 61.0
 
May 13, 2021, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.2 ppb (3) 19.0 μg/m3 (18) 6.0 μg/m3 (25) 65.0
 
May 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) 0.2 ppb (3) 18.0 μg/m3 (17) 7.0 μg/m3 (30) 81.0
 
May 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) 0.2 ppb (3) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 91.0
 
May 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) 0.2 ppb (3) 19.0 μg/m3 (18) 9.0 μg/m3 (38) 94.0
 
May 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.2 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 84.0
 
May 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.1 ppb (2) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 65.0
 
May 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 36.0 μg/m3 (34) 10.0 μg/m3 (42) 49.0
 
May 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 49.0 μg/m3 (46) 6.0 μg/m3 (25) 46.0
 
May 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.3 ppb (4) 59.0 μg/m3 (53) 10.0 μg/m3 (42) 53.0
 
May 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.5 ppb (6) 51.0 μg/m3 (48) 12.0 μg/m3 (50) 50.0
 
May 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.6 ppb (7) 43.0 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
May 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.7 ppb (8) 38.0 μg/m3 (36) 10.0 μg/m3 (42) 42.0
 
May 12, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 37.0 μg/m3 (35) 3.0 μg/m3 (13) 35.0
 
May 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.4 ppb (5) 22.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
May 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.4 ppb (5) 24.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
May 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.4 ppb (5) 23.0 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
May 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.3 ppb (4) 29.0 μg/m3 (27) 5.0 μg/m3 (21) 27.0
 
May 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.4 ppb (5) 29.0 μg/m3 (27) 4.0 μg/m3 (17) 27.0
 
May 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.4 ppb (5) 31.0 μg/m3 (29) 4.0 μg/m3 (17) 29.0
 
May 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.4 ppb (5) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 24.0
 
May 12, 2021, 4 a.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) 2.0 μg/m3 (9) 42.0
 
May 12, 2021, 3 a.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
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.2 ppb (3) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 50.0
 
May 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 19.0 μg/m3 (18) 2.0 μg/m3 (9) 61.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (71) 0.1 ppb (2) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 71.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.2 ppb (3) 11.0 μg/m3 (11) 8.0 μg/m3 (34) 65.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) 0.1 ppb (2) 19.0 μg/m3 (18) 5.0 μg/m3 (21) 55.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.2 ppb (3) 20.0 μg/m3 (19) 2.0 μg/m3 (9) 50.0
 
May 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 21.0 μg/m3 (20) 3.0 μg/m3 (13) 47.0
 
May 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 20.0 μg/m3 (19) 4.0 μg/m3 (17) 46.0
 
May 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 27.0 μg/m3 (25) 5.0 μg/m3 (21) 44.0
 
May 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 23.0 μg/m3 (22) 5.0 μg/m3 (21) 43.0
 
May 11, 2021, 4 p.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) 2.0 μg/m3 (9) 40.0
 
May 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 34.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
May 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.5 ppb (6) 54.0 μg/m3 (50) 6.0 μg/m3 (25) 50.0
 
May 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.7 ppb (8) 53.0 μg/m3 (50) 6.0 μg/m3 (25) 50.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.4 ppb (5) 26.0 μg/m3 (25) 7.0 μg/m3 (30) 30.0
 
May 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.3 ppb (4) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
May 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.3 ppb (4) 14.0 μg/m3 (13) 2.0 μg/m3 (9) 13.0
 
May 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.3 ppb (4) 23.0 μg/m3 (22) 1.0 μg/m3 (5) 22.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.3 ppb (4) 20.0 μg/m3 (19) 1.0 μg/m3 (5) 19.0
 
May 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.3 ppb (4) 22.0 μg/m3 (21) 1.0 μg/m3 (5) 21.0
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.3 ppb (4) 17.0 μg/m3 (16) 2.0 μg/m3 (9) 25.0
 
May 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.3 ppb (4) 14.0 μg/m3 (13) 2.0 μg/m3 (9) 23.0
 
May 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.3 ppb (4) 17.0 μg/m3 (16) 1.0 μg/m3 (5) 34.0
 
May 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 44.0
 
May 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 49.0
 
May 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.1 ppb (2) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 50.0
 
May 11, 2021, midnight 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) 2.0 μg/m3 (9) 51.0
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.1 ppb (2) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 61.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.1 ppb (2) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 65.0
 
May 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.1 ppb (2) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 51.0
 
May 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 13.0 μg/m3 (13) 9.0 μg/m3 (38) 48.0
 
May 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) N/A N/A 46.0
 
May 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) N/A N/A 44.0
 
May 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 42.0
 
May 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.0 μg/m3 (5) 5.0
 
May 10, 2021, 3 p.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) -1.0 μg/m3 (0) 38.0
 
May 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 28.0
 
May 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.4 ppb (5) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 13.0
 
May 10, 2021, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.3 ppb (4) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 15.0
 
May 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 29.0
 
May 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 34.0
 
May 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 34.0
 
May 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 34.0
 
May 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 2.0 μg/m3 (2) -5.0 μg/m3 (0) 37.0
 
May 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.1 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 36.0
 
May 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.1 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 36.0
 
May 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.3 ppb (4) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 32.0
 
May 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 38.0
 
May 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 42.0
 
May 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 10.0 μg/m3 (10) 1.0 μg/m3 (5) 42.0
 
May 10, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 43.0
 
May 9, 2021, 11 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) 2.0 μg/m3 (9) 48.0
 
May 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.1 ppb (2) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 50.0
 
May 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.1 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 50.0
 
May 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 45.0
 
May 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 43.0
 
May 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 42.0
 
May 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 39.0
 
May 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 0.0 μg/m3 (0) -2.0 μg/m3 (0) 37.0
 
May 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 28.0
 
May 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.3 ppb (4) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 13.0
 
May 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.3 ppb (4) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 9.0
 
May 9, 2021, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.3 ppb (4) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 9.0
 
May 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.3 ppb (4) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 10.0
 
May 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.3 ppb (4) 3.0 μg/m3 (3) -2.0 μg/m3 (0) 16.0
 
May 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.2 ppb (3) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 20.0
 
May 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 22.0
 
May 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 26.0
 
May 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.4 ppb (5) 0.0 μg/m3 (0) 1.0 μg/m3 (5) 16.0
 
May 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.5 ppb (6) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 17.0
 
May 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.3 ppb (4) 1.0 μg/m3 (1) 2.0 μg/m3 (9) 31.0
 
May 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) -1.0 μg/m3 (0) 0.0 μg/m3 (0) 40.0
 
May 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) -1.0 μg/m3 (0) -2.0 μg/m3 (0) 43.0
 
May 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 1.0 μg/m3 (1) -3.0 μg/m3 (0) 45.0
 
May 9, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 46.0
 
May 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 49.0
 
May 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 48.0
 
May 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 46.0
 
May 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 45.0
 
May 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 45.0
 
May 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 41.0
 
May 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 38.0
 
May 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.2 ppb (3) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 35.0
 
May 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 33.0
 
May 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 2.0 μg/m3 (2) -3.0 μg/m3 (0) 29.0
 
May 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) 1.0 μg/m3 (1) -2.0 μg/m3 (0) 24.0
 
May 8, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) 3.0 μg/m3 (3) -2.0 μg/m3 (0) 24.0
 
May 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 35.0
 
May 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 34.0
 
May 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 38.0
 
May 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 41.0
 
May 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 43.0
 
May 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 45.0
 
May 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 49.0
 
May 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.1 ppb (2) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 51.0
 
May 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 51.0
 
May 8, 2021, 2 a.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
 
May 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) -1.0 μg/m3 (0) 3.0 μg/m3 (13) 47.0
 
May 8, 2021, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 51.0
 
May 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.2 ppb (3) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 58.0
 
May 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.1 ppb (2) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 65.0
 
May 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.1 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 74.0
 
May 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) 0.1 ppb (2) 7.0 μg/m3 (7) -3.0 μg/m3 (0) 71.0
 
May 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.2 ppb (3) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 65.0
 
May 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 49.0
 
May 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 0.0 μg/m3 (0) 1.0 μg/m3 (5) 44.0
 
May 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 41.0
 
May 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.2 ppb (3) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 36.0
 
May 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.5 ppb (6) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 13.0
 
May 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.3 ppb (4) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 13.0
 
May 7, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.2 ppb (3) 5.0 μg/m3 (5) -3.0 μg/m3 (0) 20.0
 
May 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) -1.0 μg/m3 (0) -2.0 μg/m3 (0) 29.0
 
May 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 37.0
 
May 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 35.0
 
May 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.2 ppb (3) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 36.0
 
May 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 42.0
 
May 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 41.0
 
May 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 39.0
 
May 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 41.0
 
May 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 41.0
 
May 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 46.0
 
May 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.1 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 51.0
 
May 7, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) 0.2 ppb (3) 6.0 μg/m3 (6) -1.0 μg/m3 (0) 55.0
 
May 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 8.0 μg/m3 (8) -4.0 μg/m3 (0) 61.0
 
May 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) 0.2 ppb (3) 1.0 μg/m3 (1) -5.0 μg/m3 (0) 71.0
 
May 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) 0.1 ppb (2) N/A N/A 78.0
 
May 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.1 ppb (2) N/A N/A 74.0
 
May 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.1 ppb (2) N/A N/A 74.0
 
May 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) 0.1 ppb (2) N/A N/A 71.0
 
May 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) 0.1 ppb (2) N/A N/A 68.0
 
May 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 29.0 μg/m3 (27) 5.0 μg/m3 (21) 45.0
 
May 6, 2021, 3 p.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) 7.0 μg/m3 (30) 33.0
 
May 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.4 ppb (5) 35.0 μg/m3 (33) 7.0 μg/m3 (30) 33.0
 
May 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.5 ppb (6) 45.0 μg/m3 (42) 5.0 μg/m3 (21) 42.0
 
May 6, 2021, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.3 ppb (4) 41.0 μg/m3 (38) 3.0 μg/m3 (13) 38.0