AQSQID: 180890022

Site Name: Gary-Iitri

Location: Gary, IN

Reporting: True, Located: True

Current AQI: 35.0

Gary IN, US: 41.6067, -87.3047

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 22, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 16.0 μg/m3 (15) N/A 35.0
 
March 22, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 8.0 μg/m3 (7) 0.3 μg/m3 (1) 35.0
 
March 22, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 4.0 μg/m3 (4) -0.7 μg/m3 (0) 35.0
 
March 22, 2019, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 5.0 μg/m3 (5) -0.3 μg/m3 (0) 35.0
 
March 22, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 10.0 μg/m3 (9) 0.1 μg/m3 (0) 34.0
 
March 22, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 12.0 μg/m3 (11) 1.9 μg/m3 (8) 34.0
 
March 22, 2019, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 19.0 μg/m3 (17) 4.9 μg/m3 (20) 33.0
 
March 22, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (18) 33.0
 
March 22, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 10.0 μg/m3 (9) 2.6 μg/m3 (11) 33.0
 
March 22, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 9.0 μg/m3 (8) 4.2 μg/m3 (18) 33.0
 
March 22, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 32.0
 
March 22, 2019, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 32.0
 
March 22, 2019, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 38.0 ppb (29) N/A 15.0 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
March 22, 2019, 9 a.m. N/A N/A N/A 29.0 ppb (27) N/A 20.0 ppb (29) 17.0 ppb (13) N/A 57.0 μg/m3 (51) 24.9 μg/m3 (77) 77.0
 
March 22, 2019, 8 a.m. N/A N/A N/A 38.0 ppb (35) N/A 4.0 ppb (6) 4.0 ppb (3) N/A 23.0 μg/m3 (21) 12.9 μg/m3 (52) 52.0
 
March 22, 2019, 7 a.m. N/A N/A N/A 32.0 ppb (30) N/A 0.0 ppb (0) 8.0 ppb (6) N/A 12.0 μg/m3 (11) 6.4 μg/m3 (27) 30.0
 
March 22, 2019, 6 a.m. N/A N/A N/A 36.0 ppb (33) N/A 0.0 ppb (0) 5.0 ppb (4) N/A 11.0 μg/m3 (10) 7.4 μg/m3 (31) 33.0
 
March 22, 2019, 5 a.m. N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 10.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
March 22, 2019, 4 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 10.0 μg/m3 (9) 3.7 μg/m3 (15) 24.0
 
March 22, 2019, 3 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
March 22, 2019, 2 a.m. N/A N/A N/A 31.0 ppb (29) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 66.0 μg/m3 (56) 4.9 μg/m3 (20) 56.0
 
March 22, 2019, 1 a.m. N/A N/A N/A 34.0 ppb (31) N/A 0.0 ppb (0) 9.0 ppb (7) N/A 31.0 μg/m3 (28) 4.2 μg/m3 (18) 31.0
 
March 22, 2019, midnight N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 9.2 μg/m3 (38) 38.0
 
March 21, 2019, 11 p.m. N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 17.0 μg/m3 (15) N/A 22.0
 
March 21, 2019, 10 p.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 22.0 μg/m3 (20) 16.3 μg/m3 (59) 59.0
 
March 21, 2019, 9 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 17.0 μg/m3 (15) 15.6 μg/m3 (58) 58.0
 
March 21, 2019, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 7.0 μg/m3 (6) 8.3 μg/m3 (35) 35.0
 
March 21, 2019, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 9.0 μg/m3 (8) 17.1 μg/m3 (61) 61.0
 
March 21, 2019, 6 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 11.0 μg/m3 (10) 20.8 μg/m3 (69) 69.0
 
March 21, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 11.4 μg/m3 (48) 48.0
 
March 21, 2019, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 7.0 μg/m3 (6) 9.6 μg/m3 (40) 40.0
 
March 21, 2019, 3 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 10.0 μg/m3 (9) 13.0 μg/m3 (52) 52.0
 
March 21, 2019, 2 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 9.8 μg/m3 (41) 41.0
 
March 21, 2019, 1 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 15.7 μg/m3 (58) 58.0
 
March 21, 2019, noon N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 10.0 μg/m3 (9) 13.8 μg/m3 (54) 54.0
 
March 21, 2019, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 13.0 μg/m3 (12) 24.0 μg/m3 (76) 76.0
 
March 21, 2019, 10 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 10.0 μg/m3 (9) 14.6 μg/m3 (56) 56.0
 
March 21, 2019, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 11.0 μg/m3 (10) 17.1 μg/m3 (61) 61.0
 
March 21, 2019, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 8.0 μg/m3 (7) 14.6 μg/m3 (56) 56.0
 
March 21, 2019, 7 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 13.0 μg/m3 (12) 11.6 μg/m3 (48) 48.0
 
March 21, 2019, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 12.0 μg/m3 (11) 11.8 μg/m3 (49) 49.0
 
March 21, 2019, 5 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 7.0 μg/m3 (6) 9.7 μg/m3 (40) 40.0
 
March 21, 2019, 4 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 11.0 μg/m3 (10) 14.2 μg/m3 (55) 55.0
 
March 21, 2019, 3 a.m. N/A N/A N/A 29.0 ppb (27) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 18.0 μg/m3 (16) 20.0 μg/m3 (67) 67.0
 
March 21, 2019, 2 a.m. N/A N/A N/A 25.0 ppb (23) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 18.0 μg/m3 (16) 20.9 μg/m3 (69) 69.0
 
March 21, 2019, 1 a.m. N/A N/A N/A 33.0 ppb (31) N/A 0.0 ppb (0) 6.0 ppb (5) N/A 22.0 μg/m3 (20) 21.5 μg/m3 (70) 70.0
 
March 21, 2019, midnight N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 21.0 μg/m3 (19) 22.6 μg/m3 (73) 73.0
 
March 20, 2019, 11 p.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 17.0 μg/m3 (15) N/A 19.0
 
March 20, 2019, 10 p.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 12.0 μg/m3 (11) 12.2 μg/m3 (50) 50.0
 
March 20, 2019, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 11.4 μg/m3 (48) 48.0
 
March 20, 2019, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 12.0 μg/m3 (11) 12.0 μg/m3 (50) 50.0
 
March 20, 2019, 7 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 10.5 μg/m3 (44) 44.0
 
March 20, 2019, 6 p.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 1.0 μg/m3 (1) 9.7 μg/m3 (40) 40.0
 
March 20, 2019, 5 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 12.3 μg/m3 (51) 51.0
 
March 20, 2019, 4 p.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 8.0 μg/m3 (7) 11.3 μg/m3 (47) 47.0
 
March 20, 2019, 3 p.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 9.0 μg/m3 (8) 12.8 μg/m3 (52) 52.0
 
March 20, 2019, 2 p.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 15.0 μg/m3 (14) 12.5 μg/m3 (51) 51.0
 
March 20, 2019, 1 p.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 15.0 μg/m3 (14) 16.3 μg/m3 (59) 59.0
 
March 20, 2019, noon N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 22.0 μg/m3 (20) 13.1 μg/m3 (52) 52.0
 
March 20, 2019, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 22.0 μg/m3 (20) 13.0 μg/m3 (52) 52.0
 
March 20, 2019, 10 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 18.0 μg/m3 (16) 11.9 μg/m3 (50) 50.0
 
March 20, 2019, 9 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 14.0 μg/m3 (13) 8.4 μg/m3 (35) 35.0
 
March 20, 2019, 8 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 13.0 μg/m3 (12) 9.5 μg/m3 (40) 40.0
 
March 20, 2019, 7 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 9.3 μg/m3 (39) 39.0
 
March 20, 2019, 6 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 10.0 μg/m3 (9) 10.7 μg/m3 (45) 45.0
 
March 20, 2019, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 9.0 μg/m3 (8) 9.8 μg/m3 (41) 41.0
 
March 20, 2019, 4 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 14.0 μg/m3 (13) 15.4 μg/m3 (57) 57.0
 
March 20, 2019, 3 a.m. N/A N/A N/A 22.0 ppb (20) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 21.0 μg/m3 (19) 11.1 μg/m3 (46) 46.0
 
March 20, 2019, 2 a.m. N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 21.0 μg/m3 (19) 13.5 μg/m3 (53) 53.0
 
March 20, 2019, 1 a.m. N/A N/A N/A 29.0 ppb (27) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 24.0 μg/m3 (22) 9.9 μg/m3 (41) 41.0
 
March 20, 2019, midnight N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 30.0 μg/m3 (27) 9.4 μg/m3 (39) 39.0
 
March 19, 2019, 11 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 12.0 μg/m3 (11) N/A 33.0
 
March 19, 2019, 10 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 35.0
 
March 19, 2019, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 49.0 ppb (38) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 38.0
 
March 19, 2019, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 51.0 ppb (39) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 39.0
 
March 19, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 50.0 ppb (38) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 38.0
 
March 19, 2019, 6 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 49.0 ppb (38) N/A 10.0 μg/m3 (9) 5.3 μg/m3 (22) 38.0
 
March 19, 2019, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 36.0
 
March 19, 2019, 4 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 12.0 μg/m3 (11) 4.4 μg/m3 (18) 35.0
 
March 19, 2019, 3 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 8.4 μg/m3 (35) 35.0
 
March 19, 2019, 2 p.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 17.0 μg/m3 (15) 11.6 μg/m3 (48) 48.0
 
March 19, 2019, 1 p.m. N/A N/A N/A 29.0 ppb (27) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 25.0 μg/m3 (23) 15.1 μg/m3 (57) 57.0
 
March 19, 2019, noon N/A N/A N/A 38.0 ppb (35) N/A 0.0 ppb (0) 3.0 ppb (2) N/A 33.0 μg/m3 (30) 15.1 μg/m3 (57) 57.0
 
March 19, 2019, 11 a.m. N/A N/A N/A 40.0 ppb (37) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 24.0 μg/m3 (22) 13.3 μg/m3 (53) 53.0
 
March 19, 2019, 10 a.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 17.0 μg/m3 (15) 15.4 μg/m3 (57) 57.0
 
March 19, 2019, 9 a.m. N/A N/A N/A 35.0 ppb (32) N/A 0.0 ppb (0) 3.0 ppb (2) N/A 15.0 μg/m3 (14) 11.8 μg/m3 (49) 49.0
 
March 19, 2019, 8 a.m. N/A N/A N/A 32.0 ppb (30) N/A 0.0 ppb (0) 7.0 ppb (5) N/A 12.0 μg/m3 (11) 13.7 μg/m3 (54) 54.0
 
March 19, 2019, 7 a.m. N/A N/A N/A 31.0 ppb (29) N/A 0.0 ppb (0) 8.0 ppb (6) N/A 23.0 μg/m3 (21) 13.7 μg/m3 (54) 54.0
 
March 19, 2019, 6 a.m. N/A N/A N/A 36.0 ppb (33) N/A 0.0 ppb (0) 5.0 ppb (4) N/A 17.0 μg/m3 (15) 14.1 μg/m3 (54) 54.0
 
March 19, 2019, 5 a.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 6.0 ppb (5) N/A 32.0 μg/m3 (29) 16.5 μg/m3 (60) 60.0
 
March 19, 2019, 4 a.m. N/A N/A N/A 42.0 ppb (39) N/A 0.0 ppb (0) 3.0 ppb (2) N/A 34.0 μg/m3 (31) 17.4 μg/m3 (61) 61.0
 
March 19, 2019, 3 a.m. N/A N/A N/A 45.0 ppb (42) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 28.0 μg/m3 (25) 15.1 μg/m3 (57) 57.0
 
March 19, 2019, 2 a.m. N/A N/A N/A 33.0 ppb (31) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 23.0 μg/m3 (21) 17.1 μg/m3 (61) 61.0
 
March 19, 2019, 1 a.m. N/A N/A N/A 25.0 ppb (23) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 19.0 μg/m3 (17) 10.8 μg/m3 (45) 45.0
 
March 19, 2019, midnight N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 16.0 μg/m3 (15) 10.8 μg/m3 (45) 45.0
 
March 18, 2019, 11 p.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 14.0 μg/m3 (13) N/A 30.0
 
March 18, 2019, 10 p.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 32.0 μg/m3 (29) 5.3 μg/m3 (22) 33.0
 
March 18, 2019, 9 p.m. N/A N/A N/A 20.0 ppb (19) N/A 4.0 ppb (6) 35.0 ppb (27) N/A 40.0 μg/m3 (36) 17.7 μg/m3 (62) 62.0
 
March 18, 2019, 8 p.m. N/A N/A N/A 20.0 ppb (19) N/A 6.0 ppb (9) 35.0 ppb (27) N/A 42.0 μg/m3 (38) 20.7 μg/m3 (69) 69.0
 
March 18, 2019, 7 p.m. N/A N/A N/A 21.0 ppb (19) N/A 4.0 ppb (6) 34.0 ppb (26) N/A 30.0 μg/m3 (27) 16.0 μg/m3 (59) 59.0
 
March 18, 2019, 6 p.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 32.0 ppb (25) N/A 29.0 μg/m3 (26) 20.9 μg/m3 (69) 69.0
 
March 18, 2019, 5 p.m. N/A N/A N/A 25.0 ppb (23) N/A 3.0 ppb (4) 27.0 ppb (21) N/A 40.0 μg/m3 (36) 20.0 μg/m3 (67) 67.0
 
March 18, 2019, 4 p.m. N/A N/A N/A 27.0 ppb (25) N/A 3.0 ppb (4) 24.0 ppb (18) N/A 46.0 μg/m3 (42) 23.7 μg/m3 (75) 75.0
 
March 18, 2019, 3 p.m. N/A N/A N/A 25.0 ppb (23) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 35.0 μg/m3 (32) 21.0 μg/m3 (69) 69.0
 
March 18, 2019, 2 p.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 31.0 μg/m3 (28) 26.0 μg/m3 (80) 80.0
 
March 18, 2019, 1 p.m. N/A N/A N/A 39.0 ppb (36) N/A 1.0 ppb (1) 5.0 ppb (4) N/A 49.0 μg/m3 (45) 28.9 μg/m3 (86) 86.0
 
March 18, 2019, noon N/A N/A N/A 39.0 ppb (36) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 41.0 μg/m3 (37) 25.3 μg/m3 (78) 78.0
 
March 18, 2019, 11 a.m. N/A N/A N/A 38.0 ppb (35) N/A 1.0 ppb (1) 0.0 ppb (0) N/A 28.0 μg/m3 (25) 23.5 μg/m3 (74) 74.0
 
March 18, 2019, 10 a.m. N/A N/A N/A 34.0 ppb (31) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 18.0 μg/m3 (16) 18.1 μg/m3 (63) 63.0
 
March 18, 2019, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 15.0 μg/m3 (14) 12.4 μg/m3 (51) 51.0
 
March 18, 2019, 8 a.m. N/A N/A N/A 42.0 ppb (39) N/A 2.0 ppb (3) 2.0 ppb (2) N/A 27.0 μg/m3 (25) 18.8 μg/m3 (64) 64.0
 
March 18, 2019, 7 a.m. N/A N/A N/A 41.0 ppb (38) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 27.0 μg/m3 (25) 20.2 μg/m3 (67) 67.0
 
March 18, 2019, 6 a.m. N/A N/A N/A 40.0 ppb (37) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 22.0 μg/m3 (20) 13.4 μg/m3 (53) 53.0
 
March 18, 2019, 5 a.m. N/A N/A N/A 36.0 ppb (33) N/A 0.0 ppb (0) N/A N/A 24.0 μg/m3 (22) 16.4 μg/m3 (59) 59.0
 
March 18, 2019, 4 a.m. N/A N/A N/A 35.0 ppb (32) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 18.0 μg/m3 (16) 12.6 μg/m3 (51) 51.0
 
March 18, 2019, 3 a.m. N/A N/A N/A 36.0 ppb (33) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 18.0 μg/m3 (16) 13.0 μg/m3 (52) 52.0
 
March 18, 2019, 2 a.m. N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 10.0 μg/m3 (9) 11.3 μg/m3 (47) 47.0
 
March 18, 2019, 1 a.m. N/A N/A N/A 22.0 ppb (20) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 12.4 μg/m3 (51) 51.0
 
March 18, 2019, midnight N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 24.0
 
March 17, 2019, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 7.0 μg/m3 (6) N/A 33.0
 
March 17, 2019, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 6.0 μg/m3 (5) 6.7 μg/m3 (28) 34.0
 
March 17, 2019, 9 p.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 8.0 μg/m3 (7) 10.4 μg/m3 (43) 43.0
 
March 17, 2019, 8 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 10.0 μg/m3 (9) 5.1 μg/m3 (21) 32.0
 
March 17, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 4.3 μg/m3 (18) 32.0
 
March 17, 2019, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 34.0
 
March 17, 2019, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 33.0
 
March 17, 2019, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 3.0 μg/m3 (3) 4.1 μg/m3 (17) 32.0
 
March 17, 2019, 3 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 4.0 μg/m3 (4) 3.1 μg/m3 (13) 32.0
 
March 17, 2019, 2 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 3.0 μg/m3 (3) 4.4 μg/m3 (18) 28.0
 
March 17, 2019, 1 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 6.7 μg/m3 (28) 28.0
 
March 17, 2019, noon N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
March 17, 2019, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (8) N/A 16.0 μg/m3 (15) 7.8 μg/m3 (32) 32.0
 
March 17, 2019, 10 a.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 17.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
March 17, 2019, 9 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
March 17, 2019, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 5.0 μg/m3 (5) 9.5 μg/m3 (40) 40.0
 
March 17, 2019, 7 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 10.0 μg/m3 (9) 10.4 μg/m3 (43) 43.0
 
March 17, 2019, 6 a.m. N/A N/A N/A 31.0 ppb (29) N/A 0.0 ppb (0) 6.0 ppb (5) N/A 14.0 μg/m3 (13) 18.0 μg/m3 (63) 63.0
 
March 17, 2019, 5 a.m. N/A N/A N/A 32.0 ppb (30) N/A 0.0 ppb (0) 4.0 ppb (3) N/A 18.0 μg/m3 (16) 17.5 μg/m3 (62) 62.0
 
March 17, 2019, 4 a.m. N/A N/A N/A 35.0 ppb (32) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 21.0 μg/m3 (19) 17.7 μg/m3 (62) 62.0
 
March 17, 2019, 3 a.m. N/A N/A N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) N/A 18.0 μg/m3 (16) 13.9 μg/m3 (54) 54.0
 
March 17, 2019, 2 a.m. N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 12.0 μg/m3 (11) 9.2 μg/m3 (38) 38.0
 
March 17, 2019, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 5.0 μg/m3 (5) 5.3 μg/m3 (22) 31.0
 
March 17, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 4.0 μg/m3 (4) 3.5 μg/m3 (15) 33.0
 
March 16, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 0.0 μg/m3 (0) N/A 35.0
 
March 16, 2019, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 36.0
 
March 16, 2019, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 2.0 μg/m3 (2) 4.8 μg/m3 (20) 36.0
 
March 16, 2019, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 3.0 μg/m3 (3) 5.6 μg/m3 (23) 34.0
 
March 16, 2019, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 32.0
 
March 16, 2019, 6 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 30.0
 
March 16, 2019, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 6.0 μg/m3 (5) 0.9 μg/m3 (4) 30.0
 
March 16, 2019, 4 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 28.0
 
March 16, 2019, 3 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 11.0 μg/m3 (10) 5.7 μg/m3 (24) 27.0
 
March 16, 2019, 2 p.m. N/A N/A N/A 17.0 ppb (16) N/A 5.0 ppb (7) 27.0 ppb (21) N/A 25.0 μg/m3 (23) 9.1 μg/m3 (38) 38.0
 
March 16, 2019, 1 p.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 14.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
March 16, 2019, noon N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 19.0
 
March 16, 2019, 11 a.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 15.0 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
March 16, 2019, 10 a.m. N/A N/A N/A 26.0 ppb (24) N/A 4.0 ppb (6) 16.0 ppb (12) N/A 28.0 μg/m3 (25) 10.3 μg/m3 (43) 43.0
 
March 16, 2019, 9 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 19.0
 
March 16, 2019, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 18.0
 
March 16, 2019, 7 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 7.0 μg/m3 (6) 7.1 μg/m3 (30) 30.0
 
March 16, 2019, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 8.6 μg/m3 (36) 36.0
 
March 16, 2019, 5 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 11.0 μg/m3 (10) 4.5 μg/m3 (19) 24.0
 
March 16, 2019, 4 a.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
March 16, 2019, 3 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 19.0 μg/m3 (17) 5.8 μg/m3 (24) 25.0
 
March 16, 2019, 2 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 25.0
 
March 16, 2019, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 23.0
 
March 16, 2019, midnight N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 23.0
 
March 15, 2019, 11 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 6.0 μg/m3 (5) N/A 25.0