ID: 185

AQSQID: 060670010

Site Name: Downtown Sacramento - T Street

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

Updated: May 13, 2021, 12:45 p.m.

Location: Sacramento (Richmond Grove), CA

Reporting: True, Located: True

Current AQI: 29.0

Sacramento (Richmond Grove) CA, US: 38.56844, -121.49311

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 9.2 μg/m3 (9) 6.0 μg/m3 (25) 28.0
 
May 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 11.4 μg/m3 (11) 5.0 μg/m3 (21) 29.0
 
May 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.9 μg/m3 (10) 4.0 μg/m3 (17) 29.0
 
May 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 12.0 μg/m3 (12) 3.0 μg/m3 (13) 27.0
 
May 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 14.8 μg/m3 (14) 1.0 μg/m3 (5) 26.0
 
May 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 10.5 μg/m3 (10) -2.0 μg/m3 (0) 25.0
 
May 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 11.1 μg/m3 (11) 4.0 μg/m3 (17) 27.0
 
May 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 25.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
May 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 28.1 μg/m3 (27) 10.0 μg/m3 (42) 42.0
 
May 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 14.5 μg/m3 (14) 6.0 μg/m3 (25) 46.0
 
May 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 30.7 μg/m3 (29) 5.0 μg/m3 (21) 61.0
 
May 6, 2021, midnight N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 29.9 μg/m3 (28) 8.0 μg/m3 (34) 78.0
 
May 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 34.2 μg/m3 (32) 5.0 μg/m3 (21) 65.0
 
May 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 34.6 μg/m3 (33) 6.0 μg/m3 (25) 65.0
 
May 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 24.3 μg/m3 (23) 9.0 μg/m3 (38) 94.0
 
May 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 30.4 μg/m3 (29) 7.0 μg/m3 (30) 97.0
 
May 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 35.8 μg/m3 (34) 10.0 μg/m3 (42) 74.0
 
May 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 46.0 μg/m3 (43) 14.0 μg/m3 (55) 55.0
 
May 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
May 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 46.5 μg/m3 (44) 7.0 μg/m3 (30) 44.0
 
May 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 57.8 μg/m3 (53) 7.0 μg/m3 (30) 53.0
 
May 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 50.8 μg/m3 (48) 15.0 μg/m3 (58) 58.0
 
May 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 30.3 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
May 5, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.1 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
May 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 24.0 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
May 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 22.6 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
May 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 17.8 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
May 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 23.4 μg/m3 (22) 7.0 μg/m3 (30) 30.0
 
May 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 29.6 μg/m3 (28) 7.0 μg/m3 (30) 30.0
 
May 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 21.1 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
May 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 23.6 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
May 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 23.2 μg/m3 (22) 4.0 μg/m3 (17) 28.0
 
May 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 29.1 μg/m3 (27) 7.0 μg/m3 (30) 36.0
 
May 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 28.0 μg/m3 (26) 6.0 μg/m3 (25) 42.0
 
May 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 28.9 μg/m3 (27) 1.0 μg/m3 (5) 47.0
 
May 5, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 27.5 μg/m3 (26) 0.0 μg/m3 (0) 46.0
 
May 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 31.0 μg/m3 (29) 1.0 μg/m3 (5) 44.0
 
May 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 21.9 μg/m3 (21) 3.0 μg/m3 (13) 44.0
 
May 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 29.7 μg/m3 (28) 4.0 μg/m3 (17) 42.0
 
May 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 41.3 μg/m3 (39) 2.0 μg/m3 (9) 41.0
 
May 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 52.1 μg/m3 (49) 5.0 μg/m3 (21) 49.0
 
May 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 57.7 μg/m3 (53) 9.0 μg/m3 (38) 53.0
 
May 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 55.0 μg/m3 (51) 5.0 μg/m3 (21) 51.0
 
May 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 29.3 μg/m3 (28) 5.0 μg/m3 (21) 29.0
 
May 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 22.3 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
May 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 19.1 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
May 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 11.2 μg/m3 (11) 1.0 μg/m3 (5) 20.0
 
May 4, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 3.0 μg/m3 (13) 13.0
 
May 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 13.7 μg/m3 (13) 3.0 μg/m3 (13) 24.0
 
May 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 13.6 μg/m3 (13) 5.0 μg/m3 (21) 25.0
 
May 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 13.5 μg/m3 (13) 4.0 μg/m3 (17) 28.0
 
May 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 18.3 μg/m3 (17) 4.0 μg/m3 (17) 31.0
 
May 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 17.7 μg/m3 (17) 5.0 μg/m3 (21) 26.0
 
May 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 27.6 μg/m3 (26) 3.0 μg/m3 (13) 28.0
 
May 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 22.0 μg/m3 (21) -1.0 μg/m3 (0) 36.0
 
May 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 29.0 μg/m3 (27) 3.0 μg/m3 (13) 36.0
 
May 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 29.8 μg/m3 (28) 2.0 μg/m3 (9) 42.0
 
May 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 44.8 μg/m3 (42) 1.0 μg/m3 (5) 46.0
 
May 4, 2021, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 53.7 μg/m3 (50) 3.0 μg/m3 (13) 50.0
 
May 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 55.7 μg/m3 (52) 1.0 μg/m3 (5) 52.0
 
May 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 57.9 μg/m3 (53) 2.0 μg/m3 (9) 53.0
 
May 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 46.8 μg/m3 (44) 3.0 μg/m3 (13) 45.0
 
May 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 55.2 μg/m3 (52) 6.0 μg/m3 (25) 52.0
 
May 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 75.9 μg/m3 (62) 6.0 μg/m3 (25) 62.0
 
May 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 72.5 μg/m3 (60) 4.0 μg/m3 (17) 60.0
 
May 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 77.6 μg/m3 (63) 5.0 μg/m3 (21) 63.0
 
May 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 66.0 μg/m3 (57) 5.0 μg/m3 (21) 57.0
 
May 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 57.8 μg/m3 (53) 4.0 μg/m3 (17) 53.0
 
May 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 32.5 μg/m3 (31) 6.0 μg/m3 (25) 31.0
 
May 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 13.3 μg/m3 (13) 4.0 μg/m3 (17) 27.0
 
May 3, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
May 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 12.1 μg/m3 (12) 4.0 μg/m3 (17) 27.0
 
May 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 12.4 μg/m3 (12) 4.0 μg/m3 (17) 25.0
 
May 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 28.0
 
May 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 15.2 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
May 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 18.6 μg/m3 (18) 15.0 μg/m3 (58) 58.0
 
May 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 13.8 μg/m3 (13) 5.0 μg/m3 (21) 28.0
 
May 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 13.3 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
May 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 20.5 μg/m3 (19) 2.0 μg/m3 (9) 25.0
 
May 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 13.6 μg/m3 (13) 0.0 μg/m3 (0) 32.0
 
May 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 16.6 μg/m3 (16) 2.0 μg/m3 (9) 38.0
 
May 3, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 18.2 μg/m3 (17) 3.0 μg/m3 (13) 40.0
 
May 3, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 19.8 μg/m3 (19) 3.0 μg/m3 (13) 43.0
 
May 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 23.5 μg/m3 (22) 1.0 μg/m3 (5) 45.0
 
May 2, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 29.0 μg/m3 (27) 3.0 μg/m3 (13) 44.0
 
May 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 64.1 μg/m3 (56) 4.0 μg/m3 (17) 56.0
 
May 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 77.9 μg/m3 (63) 6.0 μg/m3 (25) 63.0
 
May 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 90.9 μg/m3 (69) 5.0 μg/m3 (21) 69.0
 
May 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 108.3 μg/m3 (78) 2.0 μg/m3 (9) 78.0
 
May 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 108.2 μg/m3 (78) 2.0 μg/m3 (9) 78.0
 
May 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 82.6 μg/m3 (65) 4.0 μg/m3 (17) 65.0
 
May 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 23.2 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
May 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 22.6 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
May 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 29.6 μg/m3 (28) 8.0 μg/m3 (34) 34.0
 
May 2, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
May 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 13.1 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
May 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 18.3 μg/m3 (17) 7.0 μg/m3 (30) 30.0
 
May 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 17.4 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
May 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 22.7 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
May 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 15.5 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
May 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 20.0 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
May 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 14.1 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
May 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 22.3 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
May 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 24.0 μg/m3 (23) 7.0 μg/m3 (30) 30.0
 
May 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 21.2 μg/m3 (20) 8.0 μg/m3 (34) 34.0
 
May 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 27.6 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
May 2, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 28.4 μg/m3 (27) 5.0 μg/m3 (21) 27.0
 
May 1, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 33.5 μg/m3 (32) 3.0 μg/m3 (13) 32.0
 
May 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 17.6 μg/m3 (17) 4.0 μg/m3 (17) 32.0
 
May 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 16.7 μg/m3 (16) 3.0 μg/m3 (13) 36.0
 
May 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 15.1 μg/m3 (14) 2.0 μg/m3 (9) 33.0
 
May 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 16.9 μg/m3 (16) 3.0 μg/m3 (13) 31.0
 
May 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 22.3 μg/m3 (21) 4.0 μg/m3 (17) 26.0
 
May 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 14.2 μg/m3 (14) 2.0 μg/m3 (9) 20.0
 
May 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 8.9 μg/m3 (9) 0.0 μg/m3 (0) 17.0
 
May 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 8.2 μg/m3 (8) 2.0 μg/m3 (9) 15.0
 
May 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 6.3 μg/m3 (6) -1.0 μg/m3 (0) 14.0
 
May 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 3.8 μg/m3 (4) 0.0 μg/m3 (0) 13.0
 
May 1, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
May 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 8.8 μg/m3 (9) 3.0 μg/m3 (13) 17.0
 
May 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 14.5 μg/m3 (14) 2.0 μg/m3 (9) 17.0
 
May 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 2.8 μg/m3 (3) 1.0 μg/m3 (5) 17.0
 
May 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 5.4 μg/m3 (5) -1.0 μg/m3 (0) 17.0
 
May 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 11.8 μg/m3 (11) 1.0 μg/m3 (5) 17.0
 
May 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 8.4 μg/m3 (8) 3.0 μg/m3 (13) 19.0
 
May 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 9.4 μg/m3 (9) 2.0 μg/m3 (9) 21.0
 
May 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 10.7 μg/m3 (10) 2.0 μg/m3 (9) 23.0
 
May 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 20.3 μg/m3 (19) 5.0 μg/m3 (21) 24.0
 
May 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 25.3 μg/m3 (24) 8.0 μg/m3 (34) 34.0
 
May 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 26.8 μg/m3 (25) 6.0 μg/m3 (25) 31.0
 
May 1, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 24.7 μg/m3 (23) 4.0 μg/m3 (17) 42.0
 
April 30, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 11.8 μg/m3 (11) 0.0 μg/m3 (0) 48.0
 
April 30, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 10.0 μg/m3 (10) 3.0 μg/m3 (13) 49.0
 
April 30, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 21.9 μg/m3 (21) 6.0 μg/m3 (25) 46.0
 
April 30, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 33.4 μg/m3 (31) 6.0 μg/m3 (25) 46.0
 
April 30, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 18.3 μg/m3 (17) 3.0 μg/m3 (13) 40.0
 
April 30, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 12.8 μg/m3 (12) 5.0 μg/m3 (21) 34.0
 
April 30, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 24.3 μg/m3 (23) 7.0 μg/m3 (30) 30.0
 
April 30, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 21.9 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
April 30, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 16.9 μg/m3 (16) 5.0 μg/m3 (21) 22.0
 
April 30, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 22.0
 
April 30, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 17.7 μg/m3 (17) N/A 23.0
 
April 30, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
April 30, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 26.0
 
April 30, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 10.1 μg/m3 (10) 5.0 μg/m3 (21) 27.0
 
April 30, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 12.8 μg/m3 (12) 6.0 μg/m3 (25) 29.0
 
April 30, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.9 μg/m3 (11) 2.0 μg/m3 (9) 29.0
 
April 30, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 12.4 μg/m3 (12) 3.0 μg/m3 (13) 28.0
 
April 30, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
April 30, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 13.3 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
April 30, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 15.0 μg/m3 (14) N/A 28.0
 
April 30, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 16.2 μg/m3 (15) 5.0 μg/m3 (21) 30.0
 
April 30, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 36.0
 
April 30, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 16.6 μg/m3 (16) 5.0 μg/m3 (21) 44.0
 
April 30, 2021, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 51.1 μg/m3 (48) 3.0 μg/m3 (13) 65.0
 
April 29, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 10.4 μg/m3 (10) 6.0 μg/m3 (25) 65.0
 
April 29, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 24.1 μg/m3 (23) 6.0 μg/m3 (25) 65.0
 
April 29, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 26.3 μg/m3 (25) 4.0 μg/m3 (17) 61.0
 
April 29, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 26.7 μg/m3 (25) 6.0 μg/m3 (25) 58.0
 
April 29, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 37.8 μg/m3 (35) 8.0 μg/m3 (34) 49.0
 
April 29, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 41.2 μg/m3 (39) 9.0 μg/m3 (38) 44.0
 
April 29, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 27.4 μg/m3 (26) 6.0 μg/m3 (25) 36.0
 
April 29, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 17.8 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
April 29, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 24.6 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
April 29, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 25.9 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
April 29, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 19.9 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
April 29, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (20) 7.0 μg/m3 (30) 30.0