AQSQID: 211110051

Site Name: Watson

Location: Louisville (Wilken Way), KY

Reporting: True, Located: True

Current AQI: 56.0

Louisville (Wilken Way) KY, US: 38.0608, -85.8961

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 4, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 29.0 μg/m3 (26) 14.9 μg/m3 (56) 56.0
 
April 4, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) N/A 22.0 μg/m3 (20) 11.7 μg/m3 (49) 49.0
 
April 4, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (40) N/A 16.0 μg/m3 (15) 8.9 μg/m3 (37) 40.0
 
April 4, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 56.0 ppb (43) N/A 15.0 μg/m3 (14) 7.7 μg/m3 (32) 43.0
 
April 4, 2020, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 57.0 ppb (44) N/A 17.0 μg/m3 (15) 8.5 μg/m3 (35) 44.0
 
April 4, 2020, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 53.0 ppb (41) N/A 26.0 μg/m3 (24) 11.7 μg/m3 (49) 49.0
 
April 4, 2020, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 55.0 ppb (42) N/A 26.0 μg/m3 (24) 13.0 μg/m3 (52) 52.0
 
April 4, 2020, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 47.0 ppb (36) N/A 33.0 μg/m3 (30) 15.7 μg/m3 (58) 58.0
 
April 4, 2020, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 35.0 ppb (27) N/A 40.0 μg/m3 (36) 14.0 μg/m3 (54) 54.0
 
April 4, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A 37.0 μg/m3 (34) 13.2 μg/m3 (53) 53.0
 
April 4, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A 66.0 μg/m3 (56) 19.2 μg/m3 (65) 65.0
 
April 4, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (8) N/A 50.0 μg/m3 (45) 19.4 μg/m3 (66) 66.0
 
April 4, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A 51.0 μg/m3 (46) 23.7 μg/m3 (75) 75.0
 
April 4, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 56.0 μg/m3 (50) 24.7 μg/m3 (77) 77.0
 
April 4, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A 76.0 μg/m3 (60) 24.0 μg/m3 (76) 76.0
 
April 4, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 86.0 μg/m3 (66) 23.5 μg/m3 (74) 74.0
 
April 4, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) N/A 87.0 μg/m3 (66) 23.8 μg/m3 (75) 75.0
 
April 4, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) N/A 89.0 μg/m3 (67) 31.8 μg/m3 (92) 92.0
 
April 4, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) N/A 69.0 μg/m3 (57) 35.8 μg/m3 (101) 101.0
 
April 4, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A 55.0 μg/m3 (50) 27.5 μg/m3 (83) 83.0
 
April 4, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A 51.0 μg/m3 (46) 32.4 μg/m3 (93) 93.0
 
April 4, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 53.0 μg/m3 (48) 36.5 μg/m3 (102) 102.0
 
April 4, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 46.0 μg/m3 (42) 27.4 μg/m3 (83) 83.0
 
April 4, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A 30.0 μg/m3 (27) 15.5 μg/m3 (57) 57.0
 
April 3, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 58.0 ppb (45) N/A 18.0 μg/m3 (16) 9.8 μg/m3 (41) 45.0
 
April 3, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 63.0 ppb (48) N/A 18.0 μg/m3 (16) 8.6 μg/m3 (36) 48.0
 
April 3, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 64.0 ppb (49) N/A 20.0 μg/m3 (18) 9.2 μg/m3 (38) 49.0
 
April 3, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) N/A 19.0 μg/m3 (17) 9.2 μg/m3 (38) 48.0
 
April 3, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 58.0 ppb (45) N/A 23.0 μg/m3 (21) 9.9 μg/m3 (41) 45.0
 
April 3, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A 20.0 μg/m3 (18) 9.7 μg/m3 (40) 40.0
 
April 3, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A 21.0 μg/m3 (19) 9.9 μg/m3 (41) 41.0
 
April 3, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A 16.0 μg/m3 (15) 9.1 μg/m3 (38) 38.0
 
April 3, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A 19.0 μg/m3 (17) 10.8 μg/m3 (45) 45.0
 
April 3, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 31.0 μg/m3 (28) 15.5 μg/m3 (57) 57.0
 
April 3, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A 55.0 μg/m3 (50) 17.6 μg/m3 (62) 62.0
 
April 3, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A 60.0 μg/m3 (52) 15.2 μg/m3 (57) 57.0
 
April 3, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A 54.0 μg/m3 (49) 18.9 μg/m3 (65) 65.0
 
April 3, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) N/A 65.0 μg/m3 (55) 25.5 μg/m3 (79) 79.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) N/A 38.0 μg/m3 (35) 19.0 μg/m3 (65) 65.0
 
April 3, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 38.0 μg/m3 (35) 17.4 μg/m3 (61) 61.0
 
April 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 36.0 μg/m3 (33) 16.4 μg/m3 (59) 59.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 48.0 μg/m3 (44) 20.5 μg/m3 (68) 68.0
 
April 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 48.0 μg/m3 (44) 16.6 μg/m3 (60) 60.0
 
April 3, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 34.0 μg/m3 (31) 18.7 μg/m3 (64) 64.0
 
April 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 33.0 μg/m3 (30) 21.5 μg/m3 (70) 70.0
 
April 3, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 40.0 μg/m3 (36) 28.0 μg/m3 (84) 84.0
 
April 3, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 35.0 μg/m3 (32) 23.0 μg/m3 (73) 73.0
 
April 3, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 17.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
April 2, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 16.0 μg/m3 (15) 6.7 μg/m3 (28) 38.0
 
April 2, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 14.0 μg/m3 (13) 6.5 μg/m3 (27) 41.0
 
April 2, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 12.0 μg/m3 (11) 6.2 μg/m3 (26) 40.0
 
April 2, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 12.0 μg/m3 (11) 6.1 μg/m3 (25) 35.0
 
April 2, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 31.0
 
April 2, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 34.0
 
April 2, 2020, 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) 6.0 μg/m3 (25) 32.0
 
April 2, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 12.0 μg/m3 (11) 6.8 μg/m3 (28) 28.0
 
April 2, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 29.0 μg/m3 (26) 13.4 μg/m3 (53) 53.0
 
April 2, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 36.0 μg/m3 (33) 15.8 μg/m3 (58) 58.0
 
April 2, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 50.0 μg/m3 (45) 13.8 μg/m3 (54) 54.0
 
April 2, 2020, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 43.0 μg/m3 (39) 15.1 μg/m3 (57) 57.0
 
April 2, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 28.0 μg/m3 (25) 10.8 μg/m3 (45) 45.0
 
April 2, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 46.0 μg/m3 (42) 12.2 μg/m3 (50) 50.0
 
April 2, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (22) 10.5 μg/m3 (44) 44.0
 
April 2, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 21.0 μg/m3 (19) 10.1 μg/m3 (42) 42.0
 
April 2, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A 22.0 μg/m3 (20) 12.5 μg/m3 (51) 51.0
 
April 2, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A 29.0 μg/m3 (26) 12.9 μg/m3 (52) 52.0
 
April 2, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) N/A 25.0 μg/m3 (23) 13.4 μg/m3 (53) 53.0
 
April 2, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A 21.0 μg/m3 (19) 16.3 μg/m3 (59) 59.0
 
April 2, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A 18.0 μg/m3 (16) 12.7 μg/m3 (51) 51.0
 
April 2, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A 21.0 μg/m3 (19) 15.7 μg/m3 (58) 58.0
 
April 2, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 11.0 μg/m3 (10) 7.3 μg/m3 (30) 30.0
 
April 2, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 24.0
 
April 1, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A 8.0 μg/m3 (7) 6.1 μg/m3 (25) 25.0
 
April 1, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 25.0
 
April 1, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 25.0
 
April 1, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 5.3 μg/m3 (22) 25.0
 
April 1, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 5.2 μg/m3 (22) 24.0
 
April 1, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 25.0
 
April 1, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 22.0
 
April 1, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 21.0
 
April 1, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 6.0 μg/m3 (5) 4.1 μg/m3 (17) 22.0
 
April 1, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 20.0
 
April 1, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 20.0
 
April 1, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 18.0
 
April 1, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 7.0 μg/m3 (6) 5.1 μg/m3 (21) 21.0
 
April 1, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 23.0
 
April 1, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 8.0 μg/m3 (7) 5.9 μg/m3 (25) 25.0
 
April 1, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
April 1, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 8.0 μg/m3 (7) 5.8 μg/m3 (24) 24.0
 
April 1, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 5.8 μg/m3 (24) 24.0
 
April 1, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 9.0 μg/m3 (8) 6.4 μg/m3 (27) 27.0
 
April 1, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
April 1, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 6.5 μg/m3 (27) 27.0
 
April 1, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
April 1, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A 11.0 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
April 1, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 7.3 μg/m3 (30) 30.0
 
March 31, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A 11.0 μg/m3 (10) 6.2 μg/m3 (26) 26.0
 
March 31, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 28.0
 
March 31, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 30.0
 
March 31, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 31.0
 
March 31, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 31.0
 
March 31, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 28.0
 
March 31, 2020, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (24) N/A 13.0 μg/m3 (12) 5.6 μg/m3 (23) 24.0
 
March 31, 2020, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (22) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
March 31, 2020, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (22) N/A 13.0 μg/m3 (12) 6.6 μg/m3 (28) 28.0
 
March 31, 2020, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (22) N/A 11.0 μg/m3 (10) 6.3 μg/m3 (26) 26.0
 
March 31, 2020, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 6.3 μg/m3 (26) 26.0
 
March 31, 2020, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 6.5 μg/m3 (27) 27.0
 
March 31, 2020, 11 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
March 31, 2020, 10 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (22) N/A 7.0 μg/m3 (6) 3.7 μg/m3 (15) 22.0
 
March 31, 2020, 9 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 30.0 ppb (23) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 23.0
 
March 31, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 24.0
 
March 31, 2020, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 32.0 ppb (25) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 25.0
 
March 31, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 24.0 μg/m3 (22) 14.6 μg/m3 (56) 56.0
 
March 31, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 33.0 μg/m3 (30) 22.2 μg/m3 (72) 72.0
 
March 31, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 24.0 μg/m3 (22) 14.7 μg/m3 (56) 56.0
 
March 31, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 16.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
March 31, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 17.0 μg/m3 (15) 10.8 μg/m3 (45) 45.0
 
March 31, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A 11.0 μg/m3 (10) 6.2 μg/m3 (26) 28.0
 
March 31, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 34.0
 
March 30, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 35.0
 
March 30, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 37.0
 
March 30, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A 8.0 μg/m3 (7) 3.8 μg/m3 (16) 38.0
 
March 30, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 37.0
 
March 30, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A N/A 37.0
 
March 30, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A N/A 37.0
 
March 30, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A N/A 35.0
 
March 30, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 35.0
 
March 30, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A 6.0 μg/m3 (5) 3.4 μg/m3 (14) 35.0
 
March 30, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A 7.0 μg/m3 (6) 3.5 μg/m3 (15) 33.0
 
March 30, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A 7.0 μg/m3 (6) 3.9 μg/m3 (16) 32.0
 
March 30, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A 17.0 μg/m3 (15) 7.3 μg/m3 (30) 30.0
 
March 30, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 12.0 μg/m3 (11) 4.4 μg/m3 (18) 22.0
 
March 30, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 4.4 μg/m3 (18) 22.0
 
March 30, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 10.0 μg/m3 (9) 4.4 μg/m3 (18) 19.0
 
March 30, 2020, 8 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) 4.7 μg/m3 (20) 26.0
 
March 30, 2020, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 32.0 ppb (25) N/A 33.0 μg/m3 (30) 6.5 μg/m3 (27) 30.0
 
March 30, 2020, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 37.0 ppb (28) N/A 13.0 μg/m3 (12) 4.5 μg/m3 (19) 28.0
 
March 30, 2020, 5 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 39.0 ppb (30) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 30.0
 
March 30, 2020, 4 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 41.0 ppb (32) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 32.0
 
March 30, 2020, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 43.0 ppb (33) N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 33.0
 
March 30, 2020, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 43.0 ppb (33) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 33.0
 
March 30, 2020, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (34) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 34.0
 
March 30, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 35.0
 
March 29, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 47.0 ppb (36) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 36.0
 
March 29, 2020, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 48.0 ppb (37) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 37.0
 
March 29, 2020, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 45.0 ppb (35) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 35.0
 
March 29, 2020, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 45.0 ppb (35) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 35.0
 
March 29, 2020, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 43.0 ppb (33) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 33.0
 
March 29, 2020, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 40.0 ppb (31) N/A 4.0 μg/m3 (4) 1.5 μg/m3 (6) 31.0
 
March 29, 2020, 5 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 39.0 ppb (30) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 30.0
 
March 29, 2020, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 37.0 ppb (28) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 28.0
 
March 29, 2020, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 39.0 ppb (30) N/A 13.0 μg/m3 (12) 3.7 μg/m3 (15) 30.0
 
March 29, 2020, 2 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 39.0 ppb (30) N/A 16.0 μg/m3 (15) 4.2 μg/m3 (18) 30.0
 
March 29, 2020, 1 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 37.0 ppb (28) N/A 27.0 μg/m3 (25) 5.6 μg/m3 (23) 28.0
 
March 29, 2020, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 40.0 ppb (31) N/A 23.0 μg/m3 (21) 5.3 μg/m3 (22) 31.0
 
March 29, 2020, 11 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 38.0 ppb (29) N/A 14.0 μg/m3 (13) 5.2 μg/m3 (22) 29.0
 
March 29, 2020, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 36.0 ppb (28) N/A 12.0 μg/m3 (11) 5.9 μg/m3 (25) 28.0
 
March 29, 2020, 9 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 34.0 ppb (26) N/A 10.0 μg/m3 (9) 5.8 μg/m3 (24) 26.0
 
March 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 5.6 μg/m3 (23) 28.0
 
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A 9.0 μg/m3 (8) 5.8 μg/m3 (24) 29.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 6.7 μg/m3 (28) 29.0
 
March 29, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
March 29, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 23.0
 
March 29, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A 15.0 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
March 29, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A 25.0 μg/m3 (23) 12.4 μg/m3 (51) 51.0
 
March 29, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A 19.0 μg/m3 (17) 12.5 μg/m3 (51) 51.0
 
March 29, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A 21.0 μg/m3 (19) 13.4 μg/m3 (53) 53.0