AQSQID: 180890022

Site Name: Gary-Iitri

Location: Gary (Marquette Park/Miller), IN

Reporting: True, Located: True

Current AQI: 25.0

Gary (Marquette Park/Miller) IN, US: 41.6067, -87.3047

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 31, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 6.0 μg/m3 (5) N/A 25.0
 
March 31, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 25.0
 
March 31, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 26.0
 
March 31, 2020, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 5.7 μg/m3 (24) 25.0
 
March 31, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 5.7 μg/m3 (24) 25.0
 
March 31, 2020, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 25.0
 
March 31, 2020, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 4.3 μg/m3 (18) 25.0
 
March 31, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 25.0
 
March 31, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 11.0 μg/m3 (10) 1.6 μg/m3 (7) 25.0
 
March 31, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 7.0 μg/m3 (6) 1.3 μg/m3 (5) 26.0
 
March 31, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 2.7 μg/m3 (11) 25.0
 
March 31, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 26.0
 
March 31, 2020, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 13.0 μg/m3 (12) 3.2 μg/m3 (13) 28.0
 
March 31, 2020, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 28.0
 
March 31, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 7.0 μg/m3 (6) 4.1 μg/m3 (17) 28.0
 
March 31, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 4.0 μg/m3 (4) 4.4 μg/m3 (18) 28.0
 
March 31, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 27.0
 
March 31, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 29.0
 
March 31, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 32.0
 
March 31, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 31.0
 
March 31, 2020, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 7.0 μg/m3 (6) 7.3 μg/m3 (30) 30.0
 
March 31, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 10.0 μg/m3 (9) 8.6 μg/m3 (36) 36.0
 
March 31, 2020, 1 a.m. N/A N/A N/A 15.0 ppb (14) N/A 3.0 ppb (4) 28.0 ppb (22) N/A 13.0 μg/m3 (12) 8.5 μg/m3 (35) 35.0
 
March 31, 2020, midnight N/A N/A N/A 19.0 ppb (18) N/A 10.0 ppb (14) 26.0 ppb (20) N/A 21.0 μg/m3 (19) 13.3 μg/m3 (53) 53.0
 
March 30, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 30, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 4.0 μg/m3 (4) 5.1 μg/m3 (21) 34.0
 
March 30, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 4.0 μg/m3 (4) 3.8 μg/m3 (16) 34.0
 
March 30, 2020, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 6.0 μg/m3 (5) 5.8 μg/m3 (24) 31.0
 
March 30, 2020, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 8.0 μg/m3 (7) 7.0 μg/m3 (29) 32.0
 
March 30, 2020, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 13.0 μg/m3 (12) 5.1 μg/m3 (21) 28.0
 
March 30, 2020, 5 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 18.0 μg/m3 (16) 2.5 μg/m3 (10) 25.0
 
March 30, 2020, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (11) 0.8 μg/m3 (3) 11.0
 
March 30, 2020, 3 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (11) 6.1 μg/m3 (25) 25.0
 
March 30, 2020, 2 p.m. N/A N/A N/A 21.0 ppb (19) N/A 14.0 ppb (20) N/A N/A 46.0 μg/m3 (42) 12.2 μg/m3 (50) 50.0
 
March 30, 2020, 1 p.m. N/A N/A N/A 25.0 ppb (23) N/A 19.0 ppb (27) N/A N/A 68.0 μg/m3 (56) 16.8 μg/m3 (60) 60.0
 
March 30, 2020, noon N/A N/A N/A 32.0 ppb (30) N/A 36.0 ppb (50) 12.0 ppb (9) N/A 69.0 μg/m3 (57) 28.1 μg/m3 (84) 84.0
 
March 30, 2020, 11 a.m. N/A N/A N/A 28.0 ppb (26) N/A 29.0 ppb (41) 15.0 ppb (12) N/A 74.0 μg/m3 (60) 22.8 μg/m3 (73) 73.0
 
March 30, 2020, 10 a.m. N/A N/A N/A 28.0 ppb (26) N/A 35.0 ppb (50) 16.0 ppb (12) N/A 147.0 μg/m3 (96) 39.3 μg/m3 (110) 110.0
 
March 30, 2020, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 15.0 ppb (21) 24.0 ppb (18) N/A 41.0 μg/m3 (37) 10.8 μg/m3 (45) 45.0
 
March 30, 2020, 8 a.m. N/A N/A N/A 16.0 ppb (15) N/A 3.0 ppb (4) 27.0 ppb (21) N/A 16.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
March 30, 2020, 7 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 24.0
 
March 30, 2020, 6 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 26.0
 
March 30, 2020, 5 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 26.0
 
March 30, 2020, 4 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 4.5 μg/m3 (19) 24.0
 
March 30, 2020, 3 a.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 33.0 ppb (25) N/A 12.0 μg/m3 (11) 4.8 μg/m3 (20) 25.0
 
March 30, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 6.0 μg/m3 (5) 2.6 μg/m3 (11) 28.0
 
March 30, 2020, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 28.0
 
March 30, 2020, midnight N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 28.0
 
March 29, 2020, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) N/A 29.0
 
March 29, 2020, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 0.0 μg/m3 (0) 5.4 μg/m3 (23) 30.0
 
March 29, 2020, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 13.0 μg/m3 (12) N/A 27.0
 
March 29, 2020, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 0.0 μg/m3 (0) 12.0 μg/m3 (50) 50.0
 
March 29, 2020, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 10.0 μg/m3 (9) N/A 25.0
 
March 29, 2020, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 9.0 μg/m3 (8) N/A 28.0
 
March 29, 2020, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 7.0 μg/m3 (6) 15.7 μg/m3 (58) 58.0
 
March 29, 2020, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 4.0 μg/m3 (4) 7.3 μg/m3 (30) 30.0
 
March 29, 2020, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 9.3 μg/m3 (39) 39.0
 
March 29, 2020, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 25.0
 
March 29, 2020, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 24.0
 
March 29, 2020, noon N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 7.0 μg/m3 (6) 4.2 μg/m3 (18) 23.0
 
March 29, 2020, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 22.0
 
March 29, 2020, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
March 29, 2020, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 13.0 μg/m3 (12) 2.9 μg/m3 (12) 29.0
 
March 29, 2020, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 32.0
 
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 34.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A 4.0 μg/m3 (4) 8.0 μg/m3 (33) 35.0
 
March 29, 2020, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 3.0 μg/m3 (3) 6.9 μg/m3 (29) 32.0
 
March 29, 2020, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 11.0 μg/m3 (10) 9.4 μg/m3 (39) 39.0
 
March 29, 2020, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) N/A 19.0 μg/m3 (17) 12.6 μg/m3 (51) 51.0
 
March 29, 2020, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 14.0 μg/m3 (13) 12.6 μg/m3 (51) 51.0
 
March 29, 2020, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 16.0 μg/m3 (15) 9.7 μg/m3 (40) 40.0
 
March 29, 2020, midnight N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 14.0 μg/m3 (13) 5.6 μg/m3 (23) 23.0
 
March 28, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 12.0 μg/m3 (11) N/A 17.0
 
March 28, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
March 28, 2020, 9 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 10.0 μg/m3 (9) 5.6 μg/m3 (23) 23.0
 
March 28, 2020, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 6.4 μg/m3 (27) 27.0
 
March 28, 2020, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 8.0 μg/m3 (7) 10.2 μg/m3 (42) 42.0
 
March 28, 2020, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 17.0
 
March 28, 2020, 5 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 21.0 μg/m3 (19) 6.2 μg/m3 (26) 26.0
 
March 28, 2020, 4 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 21.0 μg/m3 (19) 10.5 μg/m3 (44) 44.0
 
March 28, 2020, 3 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 11.0 ppb (8) N/A 16.0 μg/m3 (15) 12.5 μg/m3 (51) 51.0
 
March 28, 2020, 2 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 7.0 μg/m3 (6) 8.7 μg/m3 (36) 36.0
 
March 28, 2020, 1 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 11.0 μg/m3 (10) 11.8 μg/m3 (49) 49.0
 
March 28, 2020, noon N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 9.0 ppb (7) N/A 26.0 μg/m3 (24) 13.0 μg/m3 (52) 52.0
 
March 28, 2020, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 16.0 ppb (12) N/A 14.0 μg/m3 (13) 11.1 μg/m3 (46) 46.0
 
March 28, 2020, 10 a.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 12.0 ppb (9) N/A 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
March 28, 2020, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 3.0 μg/m3 (3) 6.8 μg/m3 (28) 28.0
 
March 28, 2020, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 11.0 μg/m3 (10) 10.4 μg/m3 (43) 43.0
 
March 28, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 13.0 μg/m3 (12) 15.0 μg/m3 (56) 56.0
 
March 28, 2020, 6 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 11.4 μg/m3 (48) 48.0
 
March 28, 2020, 5 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 8.1 μg/m3 (34) 34.0
 
March 28, 2020, 4 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 9.0 μg/m3 (8) 9.1 μg/m3 (38) 38.0
 
March 28, 2020, 3 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 10.0 μg/m3 (9) 11.4 μg/m3 (48) 48.0
 
March 28, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 12.0 μg/m3 (11) 10.6 μg/m3 (44) 44.0
 
March 28, 2020, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 12.0 μg/m3 (11) 9.7 μg/m3 (40) 40.0
 
March 28, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 9.0 μg/m3 (8) 8.7 μg/m3 (36) 36.0
 
March 27, 2020, 11 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 11.0 μg/m3 (10) N/A 25.0
 
March 27, 2020, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 13.0 μg/m3 (12) 11.3 μg/m3 (47) 47.0
 
March 27, 2020, 9 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 12.0 μg/m3 (11) 13.9 μg/m3 (54) 54.0
 
March 27, 2020, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 13.5 μg/m3 (53) 53.0
 
March 27, 2020, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 10.1 μg/m3 (42) 42.0
 
March 27, 2020, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 10.0 μg/m3 (9) 9.8 μg/m3 (41) 41.0
 
March 27, 2020, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 13.0 μg/m3 (12) 13.7 μg/m3 (54) 54.0
 
March 27, 2020, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 12.0 μg/m3 (11) 11.5 μg/m3 (48) 48.0
 
March 27, 2020, 3 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 13.0 μg/m3 (12) 9.2 μg/m3 (38) 38.0
 
March 27, 2020, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 8.0 μg/m3 (7) 6.5 μg/m3 (27) 27.0
 
March 27, 2020, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
March 27, 2020, noon N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 11.0 μg/m3 (10) 7.7 μg/m3 (32) 32.0
 
March 27, 2020, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 8.1 μg/m3 (34) 34.0
 
March 27, 2020, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 8.0 μg/m3 (7) 6.8 μg/m3 (28) 28.0
 
March 27, 2020, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 6.6 μg/m3 (28) 28.0
 
March 27, 2020, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 6.9 μg/m3 (29) 29.0
 
March 27, 2020, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 23.0
 
March 27, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 4.4 μg/m3 (18) 24.0
 
March 27, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 24.0
 
March 27, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 7.0 μg/m3 (6) 5.1 μg/m3 (21) 24.0
 
March 27, 2020, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 22.0
 
March 27, 2020, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 8.0 μg/m3 (7) 4.1 μg/m3 (17) 22.0
 
March 27, 2020, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 22.0
 
March 27, 2020, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 25.0
 
March 26, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 5.0 μg/m3 (5) N/A 25.0
 
March 26, 2020, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 25.0
 
March 26, 2020, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 6.0 μg/m3 (5) 5.7 μg/m3 (24) 25.0
 
March 26, 2020, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 9.1 μg/m3 (38) 38.0
 
March 26, 2020, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 10.5 μg/m3 (44) 44.0
 
March 26, 2020, 6 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 12.0 μg/m3 (11) 14.3 μg/m3 (55) 55.0
 
March 26, 2020, 5 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 19.0 μg/m3 (17) 19.0 μg/m3 (65) 65.0
 
March 26, 2020, 4 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 23.0 μg/m3 (21) 16.9 μg/m3 (60) 60.0
 
March 26, 2020, 3 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 25.0 μg/m3 (23) 12.9 μg/m3 (52) 52.0
 
March 26, 2020, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 14.0 ppb (11) N/A 25.0 μg/m3 (23) 13.0 μg/m3 (52) 52.0
 
March 26, 2020, 1 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 20.0 μg/m3 (18) 14.8 μg/m3 (56) 56.0
 
March 26, 2020, noon N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 20.0 μg/m3 (18) 13.7 μg/m3 (54) 54.0
 
March 26, 2020, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 14.0 μg/m3 (13) 16.7 μg/m3 (60) 60.0
 
March 26, 2020, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 18.0 μg/m3 (16) 16.1 μg/m3 (59) 59.0
 
March 26, 2020, 9 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 11.0 μg/m3 (10) 9.1 μg/m3 (38) 38.0
 
March 26, 2020, 8 a.m. N/A N/A N/A 8.0 ppb (7) N/A 2.0 ppb (3) 31.0 ppb (24) N/A 13.0 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 10.8 μg/m3 (45) 45.0
 
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 33.0 ppb (25) N/A 13.0 μg/m3 (12) 12.8 μg/m3 (52) 52.0
 
March 26, 2020, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 13.0 μg/m3 (12) 11.7 μg/m3 (49) 49.0
 
March 26, 2020, 4 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
March 26, 2020, 3 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 9.0 μg/m3 (8) 8.8 μg/m3 (37) 37.0
 
March 26, 2020, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
March 26, 2020, 1 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 16.0 μg/m3 (15) 16.6 μg/m3 (60) 60.0
 
March 26, 2020, midnight N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 12.0 μg/m3 (11) 4.2 μg/m3 (18) 22.0
 
March 25, 2020, 11 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 10.0 μg/m3 (9) N/A 28.0
 
March 25, 2020, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 10.0 μg/m3 (9) 9.8 μg/m3 (41) 41.0
 
March 25, 2020, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 11.0 μg/m3 (10) 5.5 μg/m3 (23) 32.0
 
March 25, 2020, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 10.0 μg/m3 (9) 5.3 μg/m3 (22) 32.0
 
March 25, 2020, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 9.0 μg/m3 (8) 8.2 μg/m3 (34) 34.0
 
March 25, 2020, 6 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 13.0 μg/m3 (12) 13.0 μg/m3 (52) 52.0
 
March 25, 2020, 5 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 14.0 μg/m3 (13) 13.1 μg/m3 (52) 52.0
 
March 25, 2020, 4 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 14.0 μg/m3 (13) 12.5 μg/m3 (51) 51.0
 
March 25, 2020, 3 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 15.0 μg/m3 (14) 16.9 μg/m3 (60) 60.0
 
March 25, 2020, 2 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 11.0 μg/m3 (10) 15.9 μg/m3 (58) 58.0
 
March 25, 2020, 1 p.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) 10.0 ppb (8) N/A 17.0 μg/m3 (15) 14.5 μg/m3 (55) 55.0
 
March 25, 2020, noon N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 4.0 ppb (3) N/A 16.0 μg/m3 (15) 18.0 μg/m3 (63) 63.0
 
March 25, 2020, 11 a.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 1.0 ppb (1) N/A 30.0 μg/m3 (27) 26.8 μg/m3 (81) 81.0
 
March 25, 2020, 10 a.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 0.0 ppb (0) N/A 23.0 μg/m3 (21) 20.3 μg/m3 (68) 68.0
 
March 25, 2020, 9 a.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 0.0 ppb (0) N/A 20.0 μg/m3 (18) 21.2 μg/m3 (70) 70.0
 
March 25, 2020, 8 a.m. N/A N/A N/A 27.0 ppb (25) N/A 1.0 ppb (1) 0.0 ppb (0) N/A 19.0 μg/m3 (17) 12.1 μg/m3 (50) 50.0
 
March 25, 2020, 7 a.m. N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 0.0 ppb (0) N/A 18.0 μg/m3 (16) 12.4 μg/m3 (51) 51.0
 
March 25, 2020, 6 a.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 3.0 ppb (2) N/A 11.0 μg/m3 (10) 8.7 μg/m3 (36) 36.0
 
March 25, 2020, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 14.0 μg/m3 (13) 15.8 μg/m3 (58) 58.0
 
March 25, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 11.0 μg/m3 (10) 12.4 μg/m3 (51) 51.0
 
March 25, 2020, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 9.0 μg/m3 (8) 7.1 μg/m3 (30) 32.0
 
March 25, 2020, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 9.0 μg/m3 (8) 8.6 μg/m3 (36) 36.0
 
March 25, 2020, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 9.0 μg/m3 (8) 9.8 μg/m3 (41) 41.0
 
March 25, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 9.0 μg/m3 (8) 10.6 μg/m3 (44) 44.0