ID: 372

AQSQID: 180890022

Site Name: Gary-Iitri

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

Updated: June 23, 2021, 7:53 p.m.

Location: Gary (Marquette Park/Miller), IN

Reporting: True, Located: True

Current AQI: 31.0

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
June 23, 2021, 6 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 20.0 μg/m3 (19) N/A 31.0
 
June 23, 2021, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 25.0 μg/m3 (24) 24.3 μg/m3 (77) 77.0
 
June 23, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 32.0 μg/m3 (30) 6.9 μg/m3 (29) 35.0
 
June 23, 2021, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 28.0 μg/m3 (26) 4.7 μg/m3 (20) 34.0
 
June 23, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 26.0 μg/m3 (25) 4.2 μg/m3 (18) 34.0
 
June 23, 2021, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 31.0 μg/m3 (29) 2.6 μg/m3 (11) 31.0
 
June 23, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 27.0 μg/m3 (25) 5.4 μg/m3 (23) 32.0
 
June 23, 2021, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 28.0 μg/m3 (26) 8.2 μg/m3 (35) 35.0
 
June 23, 2021, 10 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 18.0 μg/m3 (17) 7.7 μg/m3 (33) 33.0
 
June 23, 2021, 9 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) N/A 15.0 μg/m3 (14) 3.9 μg/m3 (17) 28.0
 
June 23, 2021, 8 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 23.0 μg/m3 (22) 4.7 μg/m3 (20) 30.0
 
June 23, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 30.0 μg/m3 (28) 5.2 μg/m3 (22) 34.0
 
June 23, 2021, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 13.0 μg/m3 (13) 3.8 μg/m3 (16) 30.0
 
June 23, 2021, 5 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 22.0 ppb (21) N/A 16.0 μg/m3 (15) 3.3 μg/m3 (14) 21.0
 
June 23, 2021, 4 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 19.0 μg/m3 (18) 8.2 μg/m3 (35) 35.0
 
June 23, 2021, 3 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 11.0 ppb (11) N/A 23.0 μg/m3 (22) 12.4 μg/m3 (52) 52.0
 
June 23, 2021, 2 a.m. N/A N/A N/A 32.0 ppb (31) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 27.0 μg/m3 (25) 11.6 μg/m3 (49) 49.0
 
June 23, 2021, 1 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 24.0 μg/m3 (23) 4.2 μg/m3 (18) 25.0
 
June 23, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 19.0 μg/m3 (18) 3.1 μg/m3 (13) 35.0
 
June 22, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 19.0 μg/m3 (18) N/A 46.0
 
June 22, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 15.0 μg/m3 (14) 0.9 μg/m3 (4) 46.0
 
June 22, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 12.0 μg/m3 (12) 1.3 μg/m3 (6) 45.0
 
June 22, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 15.0 μg/m3 (14) 2.7 μg/m3 (12) 45.0
 
June 22, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 19.0 μg/m3 (18) 3.1 μg/m3 (13) 42.0
 
June 22, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) N/A 25.0 μg/m3 (24) N/A 38.0
 
June 22, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 23.0 μg/m3 (22) 20.6 μg/m3 (69) 69.0
 
June 22, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 16.0 μg/m3 (15) 1.8 μg/m3 (8) 30.0
 
June 22, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 9.0 μg/m3 (9) 0.4 μg/m3 (2) 27.0
 
June 22, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 5.0 μg/m3 (5) 1.5 μg/m3 (7) 23.0
 
June 22, 2021, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 13.0 μg/m3 (13) 0.3 μg/m3 (2) 19.0
 
June 22, 2021, noon N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 15.0 μg/m3 (14) 1.7 μg/m3 (8) 14.0
 
June 22, 2021, 11 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 30.0 μg/m3 (28) 3.7 μg/m3 (16) 28.0
 
June 22, 2021, 10 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 24.0 μg/m3 (23) 3.4 μg/m3 (15) 23.0
 
June 22, 2021, 9 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 14.0 μg/m3 (13) 1.7 μg/m3 (8) 13.0
 
June 22, 2021, 8 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 18.0 μg/m3 (17) 1.7 μg/m3 (8) 17.0
 
June 22, 2021, 7 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 6.0 μg/m3 (6) 0.4 μg/m3 (2) 16.0
 
June 22, 2021, 6 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 9.0 ppb (9) N/A 5.0 μg/m3 (5) 0.7 μg/m3 (3) 12.0
 
June 22, 2021, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (4) 25.0
 
June 22, 2021, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 1.0 μg/m3 (1) 1.8 μg/m3 (8) 25.0
 
June 22, 2021, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 2.0 μg/m3 (2) 4.4 μg/m3 (19) 24.0
 
June 22, 2021, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 10.0 μg/m3 (10) 4.8 μg/m3 (20) 22.0
 
June 22, 2021, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 6.0 μg/m3 (6) 0.6 μg/m3 (3) 26.0
 
June 22, 2021, midnight N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (6) 27.0
 
June 21, 2021, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 6.0 μg/m3 (6) N/A 29.0
 
June 21, 2021, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 8.0 μg/m3 (8) 1.0 μg/m3 (5) 27.0
 
June 21, 2021, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 10.0 μg/m3 (10) 0.4 μg/m3 (2) 31.0
 
June 21, 2021, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 10.0 μg/m3 (10) 1.1 μg/m3 (5) 30.0
 
June 21, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 2.0 ppb (3) 35.0 ppb (33) N/A 7.0 μg/m3 (7) 0.8 μg/m3 (4) 33.0
 
June 21, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 35.0 ppb (33) N/A 18.0 μg/m3 (17) 0.0 μg/m3 (0) 33.0
 
June 21, 2021, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 34.0 ppb (32) N/A 18.0 μg/m3 (17) 0.5 μg/m3 (3) 32.0
 
June 21, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 35.0 ppb (33) N/A 17.0 μg/m3 (16) 2.1 μg/m3 (9) 33.0
 
June 21, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 12.0 μg/m3 (12) 3.2 μg/m3 (14) 37.0
 
June 21, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 13.0 μg/m3 (13) 3.7 μg/m3 (16) 29.0
 
June 21, 2021, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) N/A 11.0 μg/m3 (11) 4.3 μg/m3 (18) 27.0
 
June 21, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) N/A 11.0 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
June 21, 2021, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (22) N/A 10.0 μg/m3 (10) 7.3 μg/m3 (31) 31.0
 
June 21, 2021, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) N/A 13.0 μg/m3 (13) 5.2 μg/m3 (22) 28.0
 
June 21, 2021, 9 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (30) N/A 10.0 μg/m3 (10) 2.1 μg/m3 (9) 30.0
 
June 21, 2021, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 33.0
 
June 21, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 37.0
 
June 21, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 38.0
 
June 21, 2021, 5 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 40.0 ppb (38) N/A 24.0 μg/m3 (23) 11.9 μg/m3 (50) 50.0
 
June 21, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) N/A 26.0 μg/m3 (25) 17.8 μg/m3 (63) 63.0
 
June 21, 2021, 3 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 28.0 ppb (26) N/A 20.0 μg/m3 (19) 10.3 μg/m3 (43) 43.0
 
June 21, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (48) N/A 7.0 μg/m3 (7) 8.1 μg/m3 (34) 48.0
 
June 21, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 46.0 ppb (43) N/A 14.0 μg/m3 (13) 6.1 μg/m3 (26) 43.0
 
June 21, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 16.0 μg/m3 (15) 4.4 μg/m3 (19) 45.0
 
June 20, 2021, 11 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 10.0 μg/m3 (10) N/A 42.0
 
June 20, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 18.0 μg/m3 (17) 12.6 μg/m3 (53) 53.0
 
June 20, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A 24.0 μg/m3 (23) 15.2 μg/m3 (58) 58.0
 
June 20, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A 23.0 μg/m3 (22) 19.2 μg/m3 (66) 66.0
 
June 20, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A 26.0 μg/m3 (25) 10.9 μg/m3 (46) 55.0
 
June 20, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) N/A 31.0 μg/m3 (29) 17.2 μg/m3 (62) 62.0
 
June 20, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) N/A 21.0 μg/m3 (20) 17.1 μg/m3 (62) 62.0
 
June 20, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) N/A 23.0 μg/m3 (22) 12.6 μg/m3 (53) 53.0
 
June 20, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 26.0 μg/m3 (25) 13.8 μg/m3 (55) 55.0
 
June 20, 2021, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 28.0 μg/m3 (26) 13.6 μg/m3 (55) 55.0
 
June 20, 2021, 1 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 18.0 μg/m3 (17) 11.9 μg/m3 (50) 50.0
 
June 20, 2021, noon N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 16.0 μg/m3 (15) 5.8 μg/m3 (25) 27.0
 
June 20, 2021, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A 2.0 ppb (3) 20.0 ppb (19) N/A 28.0 μg/m3 (26) 6.5 μg/m3 (28) 28.0
 
June 20, 2021, 10 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 11.0 ppb (11) N/A 13.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
June 20, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 4.0 μg/m3 (4) 3.4 μg/m3 (15) 30.0
 
June 20, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A 10.0 μg/m3 (10) 2.9 μg/m3 (13) 39.0
 
June 20, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 21.0 μg/m3 (20) 3.7 μg/m3 (16) 42.0
 
June 20, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 46.0
 
June 20, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A 6.0 μg/m3 (6) 4.4 μg/m3 (19) 51.0
 
June 20, 2021, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 55.0 ppb (51) N/A 8.0 μg/m3 (8) 6.3 μg/m3 (27) 51.0
 
June 20, 2021, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 57.0 ppb (58) N/A 10.0 μg/m3 (10) 8.5 μg/m3 (36) 58.0
 
June 20, 2021, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 63.0 ppb (78) N/A 12.0 μg/m3 (12) 5.9 μg/m3 (25) 78.0
 
June 20, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 65.0 ppb (84) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 84.0
 
June 20, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 64.0 ppb (81) N/A 23.0 μg/m3 (22) 7.6 μg/m3 (32) 81.0
 
June 19, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 58.0 ppb (61) N/A 27.0 μg/m3 (25) N/A 61.0
 
June 19, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 59.0 ppb (65) N/A 24.0 μg/m3 (23) 10.5 μg/m3 (44) 65.0
 
June 19, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 63.0 ppb (78) N/A 30.0 μg/m3 (28) 7.7 μg/m3 (33) 78.0
 
June 19, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 63.0 ppb (78) N/A 12.0 μg/m3 (12) 7.6 μg/m3 (32) 78.0
 
June 19, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 58.0 ppb (61) N/A 16.0 μg/m3 (15) 4.5 μg/m3 (19) 61.0
 
June 19, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (51) N/A 15.0 μg/m3 (14) 6.2 μg/m3 (26) 51.0
 
June 19, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) N/A 16.0 μg/m3 (15) 6.2 μg/m3 (26) 49.0
 
June 19, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) N/A 17.0 μg/m3 (16) 3.7 μg/m3 (16) 48.0
 
June 19, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 47.0
 
June 19, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (43) N/A 11.0 μg/m3 (11) 2.8 μg/m3 (12) 43.0
 
June 19, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) N/A 11.0 μg/m3 (11) 2.2 μg/m3 (10) 45.0
 
June 19, 2021, noon N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 47.0 ppb (44) N/A 7.0 μg/m3 (7) 4.5 μg/m3 (19) 44.0
 
June 19, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 48.0 ppb (45) N/A 8.0 μg/m3 (8) 7.8 μg/m3 (33) 45.0
 
June 19, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (44) N/A 13.0 μg/m3 (13) 9.9 μg/m3 (42) 44.0
 
June 19, 2021, 9 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 35.0 ppb (33) N/A 37.0 μg/m3 (35) 15.5 μg/m3 (59) 59.0
 
June 19, 2021, 8 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 27.0 ppb (25) N/A 33.0 μg/m3 (31) 15.4 μg/m3 (58) 58.0
 
June 19, 2021, 7 a.m. N/A N/A N/A 28.0 ppb (27) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 31.0 μg/m3 (29) 15.1 μg/m3 (58) 58.0
 
June 19, 2021, 6 a.m. N/A N/A N/A 24.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 38.0 μg/m3 (36) 18.9 μg/m3 (66) 66.0
 
June 19, 2021, 5 a.m. N/A N/A N/A 33.0 ppb (32) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 37.0 μg/m3 (35) 16.2 μg/m3 (60) 60.0
 
June 19, 2021, 4 a.m. N/A N/A N/A 43.0 ppb (41) N/A 1.0 ppb (2) 1.0 ppb (1) N/A 46.0 μg/m3 (43) 21.5 μg/m3 (71) 71.0
 
June 19, 2021, 3 a.m. N/A N/A N/A 32.0 ppb (31) N/A 1.0 ppb (2) 3.0 ppb (3) N/A 33.0 μg/m3 (31) 12.9 μg/m3 (53) 53.0
 
June 19, 2021, 2 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 39.0 μg/m3 (37) 10.4 μg/m3 (44) 44.0
 
June 19, 2021, 1 a.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 28.0 μg/m3 (26) 5.0 μg/m3 (21) 28.0
 
June 19, 2021, midnight N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 21.0 μg/m3 (20) 5.9 μg/m3 (25) 49.0
 
June 18, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 70.0 ppb (100) N/A N/A N/A 100.0
 
June 18, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 2.0 ppb (3) 79.0 ppb (106) N/A 13.0 μg/m3 (13) 11.3 μg/m3 (48) 106.0
 
June 18, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 2.0 ppb (3) 90.0 ppb (112) N/A 26.0 μg/m3 (25) 12.4 μg/m3 (52) 112.0
 
June 18, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 87.0 ppb (110) N/A 26.0 μg/m3 (25) 15.8 μg/m3 (59) 110.0
 
June 18, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 79.0 ppb (106) N/A 20.0 μg/m3 (19) 15.3 μg/m3 (58) 106.0
 
June 18, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 73.0 ppb (103) N/A 16.0 μg/m3 (15) 12.5 μg/m3 (52) 103.0
 
June 18, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 67.0 ppb (91) N/A 37.0 μg/m3 (35) 16.5 μg/m3 (61) 91.0
 
June 18, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 61.0 ppb (71) N/A 42.0 μg/m3 (39) 18.2 μg/m3 (64) 71.0
 
June 18, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (45) N/A 47.0 μg/m3 (44) 15.7 μg/m3 (59) 59.0
 
June 18, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) N/A 38.0 μg/m3 (36) 9.3 μg/m3 (39) 39.0
 
June 18, 2021, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 17.0 μg/m3 (16) 7.6 μg/m3 (32) 34.0
 
June 18, 2021, noon N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 12.0 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
June 18, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) N/A 20.0 μg/m3 (19) 8.2 μg/m3 (35) 41.0
 
June 18, 2021, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (41) N/A 106.0 μg/m3 (77) 22.3 μg/m3 (73) 77.0
 
June 18, 2021, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 37.0 μg/m3 (35) 11.0 μg/m3 (46) 47.0
 
June 18, 2021, 8 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 68.0 μg/m3 (58) 14.0 μg/m3 (55) 58.0
 
June 18, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 35.0 μg/m3 (33) 9.4 μg/m3 (40) 50.0
 
June 18, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 53.0 ppb (50) N/A 40.0 μg/m3 (38) 12.0 μg/m3 (50) 50.0
 
June 18, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 33.0 μg/m3 (31) 4.9 μg/m3 (21) 47.0
 
June 18, 2021, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 24.0 μg/m3 (23) 4.1 μg/m3 (18) 45.0
 
June 18, 2021, 3 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 43.0 ppb (40) N/A 26.0 μg/m3 (25) 6.1 μg/m3 (26) 40.0
 
June 18, 2021, 2 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 32.0 μg/m3 (30) 7.3 μg/m3 (31) 35.0
 
June 18, 2021, 1 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 55.0 μg/m3 (51) 9.0 μg/m3 (38) 51.0
 
June 18, 2021, midnight N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 56.0 ppb (55) N/A 42.0 μg/m3 (39) 5.0 μg/m3 (21) 55.0
 
June 17, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 64.0 ppb (81) N/A 23.0 μg/m3 (22) N/A 81.0
 
June 17, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 66.0 ppb (87) N/A 25.0 μg/m3 (24) 3.0 μg/m3 (13) 87.0
 
June 17, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 66.0 ppb (87) N/A 24.0 μg/m3 (23) 4.8 μg/m3 (20) 87.0
 
June 17, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 64.0 ppb (81) N/A 20.0 μg/m3 (19) 4.5 μg/m3 (19) 81.0
 
June 17, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 61.0 ppb (71) N/A 21.0 μg/m3 (20) 4.5 μg/m3 (19) 71.0
 
June 17, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 61.0 ppb (71) N/A 25.0 μg/m3 (24) 5.5 μg/m3 (23) 71.0
 
June 17, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 60.0 ppb (68) N/A 29.0 μg/m3 (27) 5.1 μg/m3 (22) 68.0
 
June 17, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 58.0 ppb (61) N/A 28.0 μg/m3 (26) 3.6 μg/m3 (16) 61.0
 
June 17, 2021, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 29.0 μg/m3 (27) 3.2 μg/m3 (14) 46.0
 
June 17, 2021, 2 p.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 31.0 μg/m3 (29) 4.7 μg/m3 (20) 33.0
 
June 17, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 35.0 μg/m3 (33) 8.9 μg/m3 (38) 38.0
 
June 17, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 10.0 ppb (10) N/A 43.0 μg/m3 (40) 12.2 μg/m3 (52) 52.0
 
June 17, 2021, 11 a.m. N/A N/A N/A 24.0 ppb (23) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 64.0 μg/m3 (56) 15.3 μg/m3 (58) 58.0
 
June 17, 2021, 10 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 29.0 μg/m3 (27) 15.4 μg/m3 (58) 58.0
 
June 17, 2021, 9 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 26.0 μg/m3 (25) 14.8 μg/m3 (57) 57.0
 
June 17, 2021, 8 a.m. N/A N/A N/A 25.0 ppb (24) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 38.0 μg/m3 (36) 15.3 μg/m3 (58) 58.0
 
June 17, 2021, 7 a.m. N/A N/A N/A 27.0 ppb (26) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 38.0 μg/m3 (36) 10.4 μg/m3 (44) 44.0
 
June 17, 2021, 6 a.m. N/A N/A N/A 29.0 ppb (28) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 27.0 μg/m3 (25) 9.1 μg/m3 (38) 38.0
 
June 17, 2021, 5 a.m. N/A N/A N/A 29.0 ppb (28) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 15.0 μg/m3 (14) 8.4 μg/m3 (36) 36.0
 
June 17, 2021, 4 a.m. N/A N/A N/A 26.0 ppb (25) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 18.0 μg/m3 (17) 5.1 μg/m3 (22) 25.0
 
June 17, 2021, 3 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 14.0 μg/m3 (13) 5.2 μg/m3 (22) 22.0
 
June 17, 2021, 2 a.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 13.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
June 17, 2021, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 36.0
 
June 17, 2021, midnight N/A N/A N/A -1.0 ppb (0) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (19) 37.0
 
June 16, 2021, 11 p.m. N/A N/A N/A -1.0 ppb (0) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 5.0 μg/m3 (5) N/A 37.0
 
June 16, 2021, 10 p.m. N/A N/A N/A -1.0 ppb (0) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 5.0 μg/m3 (5) 0.5 μg/m3 (3) 36.0
 
June 16, 2021, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 35.0
 
June 16, 2021, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 7.0 μg/m3 (7) 2.2 μg/m3 (10) 37.0
 
June 16, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 41.0 ppb (38) N/A 13.0 μg/m3 (13) 3.1 μg/m3 (13) 38.0