AQSQID: 061072002

Site Name: Visalia - N. Church Street

Location: Visalia, CA

Reporting: True, Located: True

Current AQI: 38.0

Visalia CA, US: 36.3322, -119.2903

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, 2 p.m. 20.4 ppb (19) 2.4 ppb (2) N/A 18.0 ppb (17) N/A N/A 15.0 ppb (12) N/A 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
March 19, 2019, 1 p.m. 11.2 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) N/A 22.0 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
March 19, 2019, 11 a.m. 5.7 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
March 19, 2019, 10 a.m. 4.4 ppb (4) -0.8 ppb (0) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A 24.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
March 19, 2019, 9 a.m. 5.3 ppb (5) -0.9 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A 25.0 μg/m3 (23) 14.0 μg/m3 (54) 54.0
 
March 19, 2019, 8 a.m. 5.0 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) N/A 22.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 7 a.m. 7.3 ppb (7) -0.7 ppb (0) N/A 8.0 ppb (7) N/A N/A 27.0 ppb (21) N/A 47.0 μg/m3 (43) 24.0 μg/m3 (76) 76.0
 
March 19, 2019, 6 a.m. 11.0 ppb (10) -0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) N/A 53.0 μg/m3 (48) 24.0 μg/m3 (76) 76.0
 
March 19, 2019, 5 a.m. 22.4 ppb (21) 0.8 ppb (1) N/A 22.0 ppb (20) N/A N/A 25.0 ppb (19) N/A 45.0 μg/m3 (41) 14.0 μg/m3 (54) 54.0
 
March 19, 2019, 4 a.m. 33.9 ppb (31) 0.9 ppb (1) N/A 33.0 ppb (31) N/A N/A 20.0 ppb (15) N/A 48.0 μg/m3 (44) 20.0 μg/m3 (67) 67.0
 
March 19, 2019, 3 a.m. 39.0 ppb (36) 0.4 ppb (0) N/A 39.0 ppb (36) N/A N/A 15.0 ppb (12) N/A 51.0 μg/m3 (46) 15.0 μg/m3 (56) 56.0
 
March 19, 2019, 2 a.m. 15.4 ppb (14) -0.8 ppb (0) N/A 16.0 ppb (15) N/A N/A 43.0 ppb (33) N/A 42.0 μg/m3 (38) 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 1 a.m. 6.0 ppb (6) -0.6 ppb (0) N/A 7.0 ppb (6) N/A N/A 58.0 ppb (45) N/A 37.0 μg/m3 (34) 14.0 μg/m3 (54) 54.0
 
March 19, 2019, midnight 3.9 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A N/A 59.0 ppb (45) N/A 31.0 μg/m3 (28) 10.0 μg/m3 (42) 45.0
 
March 18, 2019, 11 p.m. 5.2 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 67.0 ppb (52) N/A 52.0 μg/m3 (47) 30.0 μg/m3 (88) 88.0
 
March 18, 2019, 10 p.m. 5.8 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 61.0 ppb (47) N/A 53.0 μg/m3 (48) 15.0 μg/m3 (56) 56.0
 
March 18, 2019, 9 p.m. 5.5 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 58.0 ppb (45) N/A 34.0 μg/m3 (31) 15.0 μg/m3 (56) 56.0
 
March 18, 2019, 8 p.m. 7.4 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 54.0 ppb (42) N/A 37.0 μg/m3 (34) 15.0 μg/m3 (56) 56.0
 
March 18, 2019, 7 p.m. 7.5 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 50.0 ppb (38) N/A 33.0 μg/m3 (30) 14.0 μg/m3 (54) 54.0
 
March 18, 2019, 6 p.m. 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 46.0 ppb (35) N/A 27.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
March 18, 2019, 5 p.m. 8.7 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) N/A 29.0 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
March 18, 2019, 4 p.m. 12.6 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (9) N/A N/A 27.0 ppb (21) N/A 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 3 p.m. 38.4 ppb (36) 15.1 ppb (14) N/A 23.0 ppb (21) N/A N/A 11.0 ppb (8) N/A 57.0 μg/m3 (51) 14.0 μg/m3 (54) 54.0
 
March 18, 2019, 2 p.m. 47.7 ppb (44) 20.1 ppb (19) N/A 28.0 ppb (26) N/A N/A 3.0 ppb (2) N/A 69.0 μg/m3 (57) 11.0 μg/m3 (46) 57.0
 
March 18, 2019, 1 p.m. 32.0 ppb (30) 6.9 ppb (6) N/A 25.0 ppb (23) N/A N/A 3.0 ppb (2) N/A 54.0 μg/m3 (49) 14.0 μg/m3 (54) 54.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 15.0 μg/m3 (56) 56.0
 
March 18, 2019, 11 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) N/A 25.0 μg/m3 (23) 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 10 a.m. 3.7 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 9 a.m. 3.1 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 8 a.m. 5.8 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) N/A 27.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
March 18, 2019, 7 a.m. 10.1 ppb (9) -0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) N/A 37.0 μg/m3 (34) 24.0 μg/m3 (76) 76.0
 
March 18, 2019, 6 a.m. 19.7 ppb (18) 0.0 ppb (0) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (12) N/A 29.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
March 18, 2019, 5 a.m. 19.8 ppb (18) 0.0 ppb (0) N/A 20.0 ppb (19) N/A N/A 21.0 ppb (16) N/A 26.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
March 18, 2019, 4 a.m. 24.8 ppb (23) 0.4 ppb (0) N/A 25.0 ppb (23) N/A N/A 18.0 ppb (14) N/A 37.0 μg/m3 (34) 20.0 μg/m3 (67) 67.0
 
March 18, 2019, 3 a.m. 41.3 ppb (38) 5.0 ppb (5) N/A 36.0 ppb (33) N/A N/A 11.0 ppb (8) N/A 36.0 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
March 18, 2019, 2 a.m. 14.2 ppb (13) -0.8 ppb (0) N/A 15.0 ppb (14) N/A N/A 35.0 ppb (27) N/A 21.0 μg/m3 (19) 8.0 μg/m3 (33) 33.0
 
March 18, 2019, 1 a.m. 4.2 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 39.0
 
March 18, 2019, midnight 2.5 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 41.0
 
March 17, 2019, 11 p.m. 2.5 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) N/A 20.0 μg/m3 (18) 8.0 μg/m3 (33) 40.0
 
March 17, 2019, 10 p.m. 2.3 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 39.0
 
March 17, 2019, 9 p.m. 3.7 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) N/A 25.0 μg/m3 (23) 8.0 μg/m3 (33) 41.0
 
March 17, 2019, 8 p.m. 4.2 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (42) N/A 24.0 μg/m3 (22) 13.0 μg/m3 (52) 52.0
 
March 17, 2019, 7 p.m. 4.8 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) N/A 21.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
March 17, 2019, 6 p.m. 5.0 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) N/A 23.0 μg/m3 (21) 16.0 μg/m3 (59) 59.0
 
March 17, 2019, 5 p.m. 7.0 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) N/A 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
March 17, 2019, 4 p.m. 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) N/A 26.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
March 17, 2019, 3 p.m. 11.9 ppb (11) 2.2 ppb (2) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) N/A 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
March 17, 2019, 2 p.m. 13.3 ppb (12) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) N/A 31.0 μg/m3 (28) 23.0 μg/m3 (73) 73.0
 
March 17, 2019, 1 p.m. 9.9 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 12.0 ppb (9) N/A 24.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
March 17, 2019, 11 a.m. 3.4 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) N/A 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
March 17, 2019, 10 a.m. 3.8 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
March 17, 2019, 9 a.m. 8.7 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) N/A 20.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
March 17, 2019, 8 a.m. 10.5 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) N/A 30.0 μg/m3 (27) 16.0 μg/m3 (59) 59.0
 
March 17, 2019, 7 a.m. 10.3 ppb (10) -0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) N/A 21.0 μg/m3 (19) 15.0 μg/m3 (56) 56.0
 
March 17, 2019, 6 a.m. 7.7 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
March 17, 2019, 5 a.m. 11.0 ppb (10) -0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 29.0 ppb (22) N/A 34.0 μg/m3 (31) 16.0 μg/m3 (59) 59.0
 
March 17, 2019, 4 a.m. 32.0 ppb (30) 0.7 ppb (1) N/A 31.0 ppb (29) N/A N/A 14.0 ppb (11) N/A 60.0 μg/m3 (52) 28.0 μg/m3 (84) 84.0
 
March 17, 2019, 3 a.m. 26.2 ppb (24) -0.2 ppb (0) N/A 26.0 ppb (24) N/A N/A 24.0 ppb (18) N/A 50.0 μg/m3 (45) 26.0 μg/m3 (80) 80.0
 
March 17, 2019, 2 a.m. 14.2 ppb (13) -0.9 ppb (0) N/A 15.0 ppb (14) N/A N/A 41.0 ppb (32) N/A 33.0 μg/m3 (30) 18.0 μg/m3 (63) 63.0
 
March 17, 2019, 1 a.m. 3.5 ppb (3) -0.9 ppb (0) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (43) N/A 25.0 μg/m3 (23) 13.0 μg/m3 (52) 52.0
 
March 17, 2019, midnight 3.0 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (43) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 43.0
 
March 16, 2019, 11 p.m. 3.6 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (42) N/A 20.0 μg/m3 (18) 8.0 μg/m3 (33) 42.0
 
March 16, 2019, 10 p.m. 4.1 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) N/A 21.0 μg/m3 (19) 9.0 μg/m3 (38) 42.0
 
March 16, 2019, 9 p.m. 4.2 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) N/A 21.0 μg/m3 (19) 8.0 μg/m3 (33) 40.0
 
March 16, 2019, 8 p.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (35) N/A 21.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 7 p.m. 8.2 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) N/A 28.0 μg/m3 (25) 14.0 μg/m3 (54) 54.0
 
March 16, 2019, 6 p.m. 11.5 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) N/A 32.0 μg/m3 (29) 14.0 μg/m3 (54) 54.0
 
March 16, 2019, 5 p.m. 10.4 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) N/A 30.0 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 4 p.m. 10.7 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A 29.0 μg/m3 (26) 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 3 p.m. 14.0 ppb (13) 3.3 ppb (3) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) N/A 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 2 p.m. 16.1 ppb (15) 2.0 ppb (2) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) N/A 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
March 16, 2019, 1 p.m. 13.2 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 11.0 ppb (8) N/A 22.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 11 a.m. 10.0 ppb (9) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) N/A 21.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 10 a.m. 8.2 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) N/A 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 9 a.m. 8.4 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
March 16, 2019, 8 a.m. 6.0 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
March 16, 2019, 7 a.m. 13.5 ppb (12) -0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) N/A 24.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 6 a.m. 19.3 ppb (18) 0.5 ppb (0) N/A 19.0 ppb (18) N/A N/A 13.0 ppb (10) N/A 33.0 μg/m3 (30) 22.0 μg/m3 (71) 71.0
 
March 16, 2019, 5 a.m. 17.4 ppb (16) 0.1 ppb (0) N/A 17.0 ppb (16) N/A N/A 19.0 ppb (15) N/A 30.0 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 4 a.m. 13.4 ppb (12) -0.6 ppb (0) N/A 14.0 ppb (13) N/A N/A 28.0 ppb (22) N/A 24.0 μg/m3 (22) 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 3 a.m. 11.3 ppb (10) -0.7 ppb (0) N/A 12.0 ppb (11) N/A N/A 32.0 ppb (25) N/A 25.0 μg/m3 (23) 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 2 a.m. 11.5 ppb (11) -0.8 ppb (0) N/A 12.0 ppb (11) N/A N/A 35.0 ppb (27) N/A 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
March 16, 2019, 1 a.m. 5.3 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) N/A 21.0 μg/m3 (19) 3.0 μg/m3 (12) 38.0
 
March 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
March 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
March 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
March 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
March 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 7.0 μg/m3 (29) 29.0
 
March 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
March 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 7.0 μg/m3 (29) 29.0
 
March 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
March 15, 2019, 3 p.m. 30.7 ppb (28) 11.5 ppb (11) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (11) N/A 35.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
March 15, 2019, 2 p.m. 40.8 ppb (38) 15.6 ppb (14) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) N/A 43.0 μg/m3 (39) 9.0 μg/m3 (38) 39.0
 
March 15, 2019, 1 p.m. 37.1 ppb (34) 12.6 ppb (12) N/A 25.0 ppb (23) N/A N/A 4.0 ppb (3) N/A 44.0 μg/m3 (40) 6.0 μg/m3 (25) 40.0
 
March 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
March 15, 2019, 11 a.m. 23.1 ppb (21) 3.5 ppb (3) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (5) N/A 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 10 a.m. 28.3 ppb (26) 5.3 ppb (5) N/A 23.0 ppb (21) N/A N/A 4.0 ppb (3) N/A 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 9 a.m. 21.8 ppb (20) 3.0 ppb (3) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
March 15, 2019, 8 a.m. 12.2 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) N/A 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
March 15, 2019, 7 a.m. 24.8 ppb (23) 1.8 ppb (2) N/A 23.0 ppb (21) N/A N/A 9.0 ppb (7) N/A 29.0 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
March 15, 2019, 6 a.m. 16.2 ppb (15) -0.2 ppb (0) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) N/A 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
March 15, 2019, 5 a.m. 19.7 ppb (18) 1.8 ppb (2) N/A 18.0 ppb (17) N/A N/A 19.0 ppb (15) N/A 33.0 μg/m3 (30) 12.0 μg/m3 (50) 50.0
 
March 15, 2019, 4 a.m. 40.4 ppb (37) 3.5 ppb (3) N/A 37.0 ppb (34) N/A N/A 7.0 ppb (5) N/A 42.0 μg/m3 (38) 17.0 μg/m3 (61) 61.0
 
March 15, 2019, 3 a.m. 31.6 ppb (29) 1.0 ppb (1) N/A 31.0 ppb (29) N/A N/A 16.0 ppb (12) N/A 45.0 μg/m3 (41) 18.0 μg/m3 (63) 63.0
 
March 15, 2019, 2 a.m. 12.3 ppb (11) -0.6 ppb (0) N/A 13.0 ppb (12) N/A N/A 35.0 ppb (27) N/A 22.0 μg/m3 (20) 4.0 μg/m3 (17) 27.0
 
March 15, 2019, 1 a.m. 2.0 ppb (2) -1.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 36.0
 
March 15, 2019, midnight 2.9 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) N/A 25.0 μg/m3 (23) 5.0 μg/m3 (21) 37.0
 
March 14, 2019, 11 p.m. 3.4 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 37.0
 
March 14, 2019, 10 p.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
 
March 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
March 14, 2019, 8 p.m. 5.2 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 32.0
 
March 14, 2019, 7 p.m. 7.5 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) N/A 20.0 μg/m3 (18) 5.0 μg/m3 (21) 29.0
 
March 14, 2019, 6 p.m. 9.2 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) N/A 27.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
March 14, 2019, 5 p.m. 10.1 ppb (9) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) N/A 43.0 μg/m3 (39) 30.0 μg/m3 (88) 88.0
 
March 14, 2019, 4 p.m. 11.0 ppb (10) 2.5 ppb (2) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) N/A 28.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
March 14, 2019, 3 p.m. 24.9 ppb (23) 10.9 ppb (10) N/A 14.0 ppb (13) N/A N/A 9.0 ppb (7) N/A 40.0 μg/m3 (36) 22.0 μg/m3 (71) 71.0
 
March 14, 2019, 2 p.m. 24.8 ppb (23) 8.3 ppb (8) N/A 17.0 ppb (16) N/A N/A 4.0 ppb (3) N/A 40.0 μg/m3 (36) 18.0 μg/m3 (63) 63.0
 
March 14, 2019, 1 p.m. 20.3 ppb (19) 4.2 ppb (4) N/A 16.0 ppb (15) N/A N/A 4.0 ppb (3) N/A 29.0 μg/m3 (26) 15.0 μg/m3 (56) 56.0
 
March 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 13.0 μg/m3 (52) 52.0
 
March 14, 2019, 11 a.m. 6.8 ppb (6) -0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) N/A 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
March 14, 2019, 10 a.m. 10.0 ppb (9) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 13.0 ppb (10) N/A 30.0 μg/m3 (27) 17.0 μg/m3 (61) 61.0
 
March 14, 2019, 9 a.m. 17.4 ppb (16) 1.4 ppb (1) N/A 16.0 ppb (15) N/A N/A 11.0 ppb (8) N/A 24.0 μg/m3 (22) 16.0 μg/m3 (59) 59.0
 
March 14, 2019, 8 a.m. 20.3 ppb (19) 3.6 ppb (3) N/A 17.0 ppb (16) N/A N/A 16.0 ppb (12) N/A 20.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
March 14, 2019, 7 a.m. 20.7 ppb (19) 2.5 ppb (2) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (11) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
March 14, 2019, 6 a.m. 23.7 ppb (22) 2.3 ppb (2) N/A 22.0 ppb (20) N/A N/A 13.0 ppb (10) N/A 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
March 14, 2019, 5 a.m. 23.4 ppb (22) 4.2 ppb (4) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (12) N/A 21.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
March 14, 2019, 4 a.m. 12.3 ppb (11) -0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) N/A 20.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
March 14, 2019, 3 a.m. 12.0 ppb (11) -0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) N/A 26.0 μg/m3 (24) 11.0 μg/m3 (46) 46.0
 
March 14, 2019, 2 a.m. 9.6 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 36.0 ppb (28) N/A 25.0 μg/m3 (23) 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 1 a.m. 6.0 ppb (6) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 34.0
 
March 14, 2019, midnight 3.7 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 35.0
 
March 13, 2019, 11 p.m. 4.8 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 32.0
 
March 13, 2019, 10 p.m. 5.8 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 30.0
 
March 13, 2019, 9 p.m. 6.4 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) N/A 19.0 μg/m3 (17) 5.0 μg/m3 (21) 28.0
 
March 13, 2019, 8 p.m. 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 31.0
 
March 13, 2019, 7 p.m. 5.7 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
March 13, 2019, 6 p.m. 6.8 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
March 13, 2019, 5 p.m. 9.9 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 22.0
 
March 13, 2019, 4 p.m. 7.2 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 22.0
 
March 13, 2019, 3 p.m. 34.1 ppb (32) 13.4 ppb (12) N/A 21.0 ppb (19) N/A N/A 13.0 ppb (10) N/A 48.0 μg/m3 (44) 5.0 μg/m3 (21) 44.0
 
March 13, 2019, 2 p.m. 34.1 ppb (32) 8.0 ppb (7) N/A 26.0 ppb (24) N/A N/A 7.0 ppb (5) N/A 21.0 μg/m3 (19) 5.0 μg/m3 (21) 32.0
 
March 13, 2019, 1 p.m. 23.1 ppb (21) 3.0 ppb (3) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (9) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
March 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
March 13, 2019, 11 a.m. 17.7 ppb (16) 5.8 ppb (5) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 18.0
 
March 13, 2019, 10 a.m. 8.3 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
March 13, 2019, 9 a.m. 4.4 ppb (4) -0.8 ppb (0) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
March 13, 2019, 8 a.m. 3.1 ppb (3) -0.9 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 22.0
 
March 13, 2019, 7 a.m. 2.6 ppb (2) -1.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 22.0
 
March 13, 2019, 6 a.m. 2.9 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 25.0
 
March 13, 2019, 5 a.m. 3.1 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 26.0
 
March 13, 2019, 4 a.m. 2.7 ppb (3) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 28.0
 
March 13, 2019, 3 a.m. 2.5 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A 60.0 μg/m3 (52) 9.0 μg/m3 (38) 52.0
 
March 13, 2019, 2 a.m. 5.0 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) N/A 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
March 13, 2019, 1 a.m. 5.2 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 30.0
 
March 13, 2019, midnight 4.6 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 34.0
 
March 12, 2019, 11 p.m. 3.6 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 34.0
 
March 12, 2019, 10 p.m. 4.6 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) N/A 30.0 μg/m3 (27) 6.0 μg/m3 (25) 32.0
 
March 12, 2019, 9 p.m. 5.1 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 32.0
 
March 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 23.0 μg/m3 (21) 5.0 μg/m3 (21) 28.0
 
March 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
March 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
March 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
March 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
March 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 26.0 μg/m3 (24) 14.0 μg/m3 (54) 54.0