ID: 969

AQSQID: 320311005

Site Name: Sparks

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

Updated: April 11, 2021, 5:42 a.m.

Location: Sparks (4th St), NV

Reporting: True, Located: True

Current AQI: 37.0

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 4, 2021, 4 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) 7.0 μg/m3 (30) 42.0
 
April 4, 2021, 3 a.m. 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) 8.0 μg/m3 (34) 44.0
 
April 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 25.0 μg/m3 (24) 6.0 μg/m3 (25) 44.0
 
April 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 24.0 μg/m3 (23) 8.0 μg/m3 (34) 46.0
 
April 4, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 46.0
 
April 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 49.0
 
April 3, 2021, 10 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) 4.0 μg/m3 (17) 49.0
 
April 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.1 ppb (2) 19.0 μg/m3 (18) 5.0 μg/m3 (21) 50.0
 
April 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 61.0
 
April 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.2 ppb (3) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 58.0
 
April 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 17.0 μg/m3 (16) 8.0 μg/m3 (34) 49.0
 
April 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
April 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.4 ppb (5) 36.0 μg/m3 (34) 10.0 μg/m3 (42) 42.0
 
April 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.4 ppb (5) 39.0 μg/m3 (37) 15.0 μg/m3 (58) 58.0
 
April 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.6 ppb (7) 38.0 μg/m3 (36) 11.0 μg/m3 (46) 46.0
 
April 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 40.0 μg/m3 (38) 8.0 μg/m3 (34) 38.0
 
April 3, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
April 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.5 ppb (6) 31.0 μg/m3 (29) 8.0 μg/m3 (34) 34.0
 
April 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.4 ppb (5) 28.0 μg/m3 (26) 7.0 μg/m3 (30) 30.0
 
April 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.5 ppb (6) 28.0 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
April 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.7 ppb (8) 41.0 μg/m3 (38) 17.0 μg/m3 (62) 62.0
 
April 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.6 ppb (7) 40.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
April 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.7 ppb (8) 36.0 μg/m3 (34) 10.0 μg/m3 (42) 42.0
 
April 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.6 ppb (7) 44.0 μg/m3 (41) 10.0 μg/m3 (42) 42.0
 
April 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.2 ppb (3) 27.0 μg/m3 (25) 5.0 μg/m3 (21) 31.0
 
April 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 38.0
 
April 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 42.0
 
April 3, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) 17.0 μg/m3 (16) 4.0 μg/m3 (17) 47.0
 
April 3, 2021, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.2 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 48.0
 
April 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.2 ppb (3) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 48.0
 
April 2, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.2 ppb (3) 23.0 μg/m3 (22) 4.0 μg/m3 (17) 50.0
 
April 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.2 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 58.0
 
April 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.1 ppb (2) 18.0 μg/m3 (17) 3.0 μg/m3 (13) 58.0
 
April 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
April 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 28.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
April 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.4 ppb (5) 50.0 μg/m3 (47) 17.0 μg/m3 (62) 62.0
 
April 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.6 ppb (7) 70.0 μg/m3 (59) 19.0 μg/m3 (66) 66.0
 
April 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.7 ppb (8) 51.0 μg/m3 (48) 14.0 μg/m3 (55) 55.0
 
April 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.9 ppb (11) 64.0 μg/m3 (56) 11.0 μg/m3 (46) 56.0
 
April 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (10) 43.0 μg/m3 (40) 8.0 μg/m3 (34) 40.0
 
April 2, 2021, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.5 ppb (6) 34.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
April 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.5 ppb (6) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
April 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.4 ppb (5) 27.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
April 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.5 ppb (6) 28.0 μg/m3 (26) 7.0 μg/m3 (30) 30.0
 
April 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.5 ppb (6) 31.0 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
April 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.5 ppb (6) 27.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
April 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.3 ppb (4) 27.0 μg/m3 (25) 7.0 μg/m3 (30) 34.0
 
April 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 27.0 μg/m3 (25) 8.0 μg/m3 (34) 43.0
 
April 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.3 ppb (4) 26.0 μg/m3 (25) 8.0 μg/m3 (34) 35.0
 
April 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.3 ppb (4) 22.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
April 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
April 2, 2021, 1 a.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) 5.0 μg/m3 (21) 45.0
 
April 2, 2021, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) 21.0 μg/m3 (20) 8.0 μg/m3 (34) 47.0
 
April 1, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.3 ppb (4) 25.0 μg/m3 (24) 8.0 μg/m3 (34) 48.0
 
April 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 17.0 μg/m3 (16) 9.0 μg/m3 (38) 49.0
 
April 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.1 ppb (2) 21.0 μg/m3 (20) 5.0 μg/m3 (21) 51.0
 
April 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.2 ppb (3) 24.0 μg/m3 (23) 7.0 μg/m3 (30) 50.0
 
April 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 19.0 μg/m3 (18) 9.0 μg/m3 (38) 46.0
 
April 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.4 ppb (5) 48.0 μg/m3 (45) 13.0 μg/m3 (53) 53.0
 
April 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.5 ppb (6) 53.0 μg/m3 (50) 14.0 μg/m3 (55) 55.0
 
April 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.7 ppb (8) 44.0 μg/m3 (41) 13.0 μg/m3 (53) 53.0
 
April 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.7 ppb (8) 43.0 μg/m3 (40) 10.0 μg/m3 (42) 42.0
 
April 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.2 ppb (14) 70.0 μg/m3 (59) 9.0 μg/m3 (38) 59.0
 
April 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (12) 44.0 μg/m3 (41) 11.0 μg/m3 (46) 46.0
 
April 1, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 31.0 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
April 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
April 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.4 ppb (5) 27.0 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
April 1, 2021, 9 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) 7.0 μg/m3 (30) 30.0
 
April 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.4 ppb (5) 26.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
April 1, 2021, 7 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 (30) 7.0 μg/m3 (30) 30.0
 
April 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.5 ppb (6) 33.0 μg/m3 (31) 9.0 μg/m3 (38) 38.0
 
April 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.4 ppb (5) 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
April 1, 2021, 4 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) 3.0 μg/m3 (13) 31.0
 
April 1, 2021, 3 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) 4.0 μg/m3 (17) 38.0
 
April 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 41.0
 
April 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 21.0 μg/m3 (20) 4.0 μg/m3 (17) 44.0
 
April 1, 2021, midnight 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) 7.0 μg/m3 (30) 45.0
 
March 31, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 45.0
 
March 31, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 45.0
 
March 31, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 44.0
 
March 31, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 45.0
 
March 31, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 43.0
 
March 31, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 23.0 μg/m3 (22) 6.0 μg/m3 (25) 40.0
 
March 31, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 18.0 μg/m3 (17) 5.0 μg/m3 (21) 37.0
 
March 31, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.4 ppb (5) 25.0 μg/m3 (24) 4.0 μg/m3 (17) 26.0
 
March 31, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.8 ppb (10) 92.0 μg/m3 (70) 17.0 μg/m3 (62) 70.0
 
March 31, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.1 ppb (13) 38.0 μg/m3 (36) 7.0 μg/m3 (30) 36.0
 
March 31, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (10) 33.0 μg/m3 (31) 5.0 μg/m3 (21) 31.0
 
March 31, 2021, 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 (22) 2.0 μg/m3 (9) 22.0
 
March 31, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.3 ppb (4) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
March 31, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.3 ppb (4) 15.0 μg/m3 (14) 3.0 μg/m3 (13) 14.0
 
March 31, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.3 ppb (4) 14.0 μg/m3 (13) 1.0 μg/m3 (5) 13.0
 
March 31, 2021, 8 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) 5.0 μg/m3 (21) 21.0
 
March 31, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.4 ppb (5) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
March 31, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.4 ppb (5) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
March 31, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.3 ppb (4) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 19.0
 
March 31, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.3 ppb (4) 20.0 μg/m3 (19) 4.0 μg/m3 (17) 24.0
 
March 31, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.2 ppb (3) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 35.0
 
March 31, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 40.0
 
March 31, 2021, 1 a.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) 6.0 μg/m3 (25) 43.0
 
March 31, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 44.0
 
March 30, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 46.0
 
March 30, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 45.0
 
March 30, 2021, 9 p.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) 2.0 μg/m3 (9) 42.0
 
March 30, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 41.0
 
March 30, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 40.0
 
March 30, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 17.0 μg/m3 (16) 2.0 μg/m3 (9) 38.0
 
March 30, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 38.0
 
March 30, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 14.0 μg/m3 (13) 3.0 μg/m3 (13) 33.0
 
March 30, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.3 ppb (4) 27.0 μg/m3 (25) 3.0 μg/m3 (13) 25.0
 
March 30, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.7 ppb (8) 14.0 μg/m3 (13) 2.0 μg/m3 (9) 13.0
 
March 30, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 19.0 μg/m3 (18) 3.0 μg/m3 (13) 18.0
 
March 30, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 10.0
 
March 30, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.3 ppb (4) 15.0 μg/m3 (14) 3.0 μg/m3 (13) 14.0
 
March 30, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.2 ppb (3) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 17.0
 
March 30, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) 7.0 μg/m3 (7) -1.0 μg/m3 (0) 24.0
 
March 30, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.3 ppb (4) 13.0 μg/m3 (13) 0.0 μg/m3 (0) 19.0
 
March 30, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.3 ppb (4) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 19.0
 
March 30, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 29.0
 
March 30, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 34.0
 
March 30, 2021, 4 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) 2.0 μg/m3 (9) 38.0
 
March 30, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 41.0
 
March 30, 2021, 2 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
 
March 30, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 44.0
 
March 30, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.2 ppb (3) 16.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
March 29, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 41.0
 
March 29, 2021, 10 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) 4.0 μg/m3 (17) 39.0
 
March 29, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 23.0 μg/m3 (22) 3.0 μg/m3 (13) 38.0
 
March 29, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 39.0 μg/m3 (37) 5.0 μg/m3 (21) 38.0
 
March 29, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
March 29, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 57.0 μg/m3 (52) 3.0 μg/m3 (13) 52.0
 
March 29, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) 23.0 μg/m3 (22) 2.0 μg/m3 (9) 34.0
 
March 29, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 30.0 μg/m3 (28) 5.0 μg/m3 (21) 35.0
 
March 29, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 37.0
 
March 29, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 38.0
 
March 29, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 40.0
 
March 29, 2021, noon N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 41.0
 
March 29, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 42.0
 
March 29, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 43.0
 
March 29, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 8.0 μg/m3 (8) 2.0 μg/m3 (9) 43.0
 
March 29, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 44.0
 
March 29, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 38.0
 
March 29, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 34.0
 
March 29, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.1 ppb (2) 15.0 μg/m3 (14) -1.0 μg/m3 (0) 36.0
 
March 29, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.1 ppb (2) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 36.0
 
March 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) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 41.0
 
March 29, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 40.0
 
March 29, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 41.0
 
March 29, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 42.0
 
March 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 42.0
 
March 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 43.0
 
March 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 43.0
 
March 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 44.0
 
March 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.1 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 43.0
 
March 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 38.0
 
March 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.3 ppb (4) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
March 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.4 ppb (5) 21.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
March 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.5 ppb (6) 26.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
March 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.6 ppb (7) 37.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
March 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 32.0 μg/m3 (30) 11.0 μg/m3 (46) 46.0
 
March 28, 2021, noon 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) 8.0 μg/m3 (34) 34.0
 
March 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 26.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
March 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 28.0 μg/m3 (26) 8.0 μg/m3 (34) 34.0
 
March 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) 35.0 μg/m3 (33) 7.0 μg/m3 (30) 33.0
 
March 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (10) 39.0 μg/m3 (37) 12.0 μg/m3 (50) 50.0
 
March 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.9 ppb (11) 40.0 μg/m3 (38) 13.0 μg/m3 (53) 53.0
 
March 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.5 ppb (6) 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
March 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.4 ppb (5) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0