AQSQID: 060830011

Site Name: Santa Barbara

Location: Santa Barbara (E de la Guerra St), CA

Reporting: True, Located: True

Current AQI: 21.0

Santa Barbara (E de la Guerra St) CA, US: 34.4278, -119.6903

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 26, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
May 26, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
May 26, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 17.0 μg/m3 (15) 2.0 μg/m3 (8) 29.0
 
May 26, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 29.0
 
May 26, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 28.0
 
May 26, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
May 26, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
May 26, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 29.0
 
May 26, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 29.0
 
May 26, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 30.0
 
May 26, 2019, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 29.0
 
May 25, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 29.0
 
May 25, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 30.0
 
May 25, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 30.0
 
May 25, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 29.0
 
May 25, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 30.0
 
May 25, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
May 25, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
May 25, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 27.0
 
May 25, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 22.0 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
May 25, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 25.0 μg/m3 (23) 8.0 μg/m3 (33) 33.0
 
May 25, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
May 25, 2019, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 25, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
May 25, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
May 25, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 23.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
May 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
May 25, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
May 25, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 26.0 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
May 25, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 23.0 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
May 25, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 20.0 μg/m3 (18) 5.0 μg/m3 (21) 23.0
 
May 25, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 18.0 μg/m3 (16) N/A 24.0
 
May 25, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 26.0
 
May 25, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 29.0
 
May 25, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 30.0
 
May 24, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 30.0
 
May 24, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 29.0
 
May 24, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 2.0 μg/m3 (8) 29.0
 
May 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 29.0
 
May 24, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (12) 28.0
 
May 24, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 25.0
 
May 24, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
May 24, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 29.0 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
May 24, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 25.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
May 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 25.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
May 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 8.0
 
May 24, 2019, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
May 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
May 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
May 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
May 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 12.0
 
May 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
May 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 19.0 μg/m3 (17) 5.0 μg/m3 (21) 22.0
 
May 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
May 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 26.0
 
May 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
May 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
May 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 30.0
 
May 24, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 30.0
 
May 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 23.0 μg/m3 (21) 7.0 μg/m3 (29) 29.0
 
May 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
May 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
May 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 25.0 μg/m3 (23) 8.0 μg/m3 (33) 33.0
 
May 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
May 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 34.0 μg/m3 (31) 12.0 μg/m3 (50) 50.0
 
May 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 37.0 μg/m3 (34) 12.0 μg/m3 (50) 50.0
 
May 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 43.0 μg/m3 (39) 9.0 μg/m3 (38) 39.0
 
May 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 38.0 μg/m3 (35) 8.0 μg/m3 (33) 35.0
 
May 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 34.0 μg/m3 (31) 9.0 μg/m3 (38) 38.0
 
May 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
May 23, 2019, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
May 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
May 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
May 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
May 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 22.0
 
May 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
May 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 27.0
 
May 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 28.0
 
May 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 28.0
 
May 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 23.0 μg/m3 (21) 3.0 μg/m3 (12) 30.0
 
May 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 32.0
 
May 23, 2019, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) 1.0 μg/m3 (4) 32.0
 
May 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 32.0
 
May 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 30.0
 
May 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 16.0 μg/m3 (15) 2.0 μg/m3 (8) 30.0
 
May 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) N/A 29.0
 
May 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) -2.0 μg/m3 (0) 29.0
 
May 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 0.0 μg/m3 (0) 30.0
 
May 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 28.0
 
May 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) N/A 29.0
 
May 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 28.0
 
May 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (12) 28.0
 
May 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 28.0
 
May 22, 2019, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) 1.0 μg/m3 (4) 29.0
 
May 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
May 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 30.0
 
May 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 30.0
 
May 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 30.0
 
May 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 20.0 μg/m3 (18) 1.0 μg/m3 (4) 31.0
 
May 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 31.0
 
May 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 32.0
 
May 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 18.0 μg/m3 (16) 5.0 μg/m3 (21) 32.0
 
May 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 24.0 μg/m3 (22) 2.0 μg/m3 (8) 32.0
 
May 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 24.0 μg/m3 (22) 2.0 μg/m3 (8) 32.0
 
May 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 36.0 μg/m3 (33) 4.0 μg/m3 (17) 33.0
 
May 22, 2019, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 33.0 μg/m3 (30) 3.0 μg/m3 (12) 31.0
 
May 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 35.0 μg/m3 (32) 4.0 μg/m3 (17) 32.0
 
May 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 34.0 μg/m3 (31) 4.0 μg/m3 (17) 32.0
 
May 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 29.0 μg/m3 (26) 6.0 μg/m3 (25) 33.0
 
May 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 20.0 μg/m3 (18) 4.0 μg/m3 (17) 33.0
 
May 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 27.0 μg/m3 (25) 6.0 μg/m3 (25) 34.0
 
May 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 34.0
 
May 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 10.0 μg/m3 (9) 1.0 μg/m3 (4) 32.0
 
May 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) -1.0 μg/m3 (0) 31.0
 
May 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 10.0 μg/m3 (9) 0.0 μg/m3 (0) 28.0
 
May 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 23.0
 
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
May 21, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
May 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
May 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 26.0 μg/m3 (24) 7.0 μg/m3 (29) 29.0
 
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 28.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
May 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 31.0 μg/m3 (28) 7.0 μg/m3 (29) 29.0
 
May 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 32.0
 
May 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 26.0 μg/m3 (24) 4.0 μg/m3 (17) 34.0
 
May 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 21.0 μg/m3 (19) 3.0 μg/m3 (12) 35.0
 
May 21, 2019, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 22.0 μg/m3 (20) 2.0 μg/m3 (8) 34.0
 
May 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 20.0 μg/m3 (18) 3.0 μg/m3 (12) 35.0
 
May 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 23.0 μg/m3 (21) 4.0 μg/m3 (17) 35.0
 
May 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 35.0
 
May 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 2.0 μg/m3 (8) 34.0
 
May 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 0.0 μg/m3 (0) 34.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 0.0 μg/m3 (0) 33.0
 
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) 1.0 μg/m3 (4) 34.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 32.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 33.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 32.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 33.0
 
May 20, 2019, noon N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 34.0
 
May 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
May 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 34.0
 
May 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 36.0
 
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 28.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 33.0
 
May 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 34.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 35.0
 
May 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 35.0
 
May 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 34.0
 
May 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 32.0
 
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 33.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 21.0 μg/m3 (19) 6.0 μg/m3 (25) 34.0
 
May 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 35.0
 
May 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 22.0 μg/m3 (20) 6.0 μg/m3 (25) 36.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 35.0
 
May 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 35.0
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) -2.0 μg/m3 (0) 34.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 5.0 μg/m3 (5) N/A 32.0
 
May 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.0 μg/m3 (5) -2.0 μg/m3 (0) 29.0
 
May 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 28.0
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 28.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 25.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (4) 26.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 31.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0