ID: 416

AQSQID: 211110051

Site Name: Watson

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

Updated: April 10, 2021, 11:42 a.m.

Location: Louisville (Wilken Way), KY

Reporting: True, Located: True

Current AQI: 44.0

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 10, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 17.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
April 10, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 21.6 μg/m3 (20) 12.1 μg/m3 (51) 51.0
 
April 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 27.7 μg/m3 (26) 13.8 μg/m3 (55) 55.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 37.2 μg/m3 (35) 13.6 μg/m3 (55) 55.0
 
April 10, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A 28.0 μg/m3 (26) 11.4 μg/m3 (48) 48.0
 
April 10, 2021, 5 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 26.0 ppb (25) N/A 36.1 μg/m3 (34) 11.4 μg/m3 (48) 48.0
 
April 10, 2021, 4 a.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 18.0 ppb (17) N/A 57.3 μg/m3 (53) 21.8 μg/m3 (72) 72.0
 
April 10, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A 78.4 μg/m3 (63) 37.1 μg/m3 (105) 105.0
 
April 10, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A 111.5 μg/m3 (79) 58.8 μg/m3 (153) 153.0
 
April 10, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A 36.0 μg/m3 (34) 18.2 μg/m3 (64) 64.0
 
April 10, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 35.1 μg/m3 (33) 10.1 μg/m3 (43) 47.0
 
April 9, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (50) N/A 31.4 μg/m3 (30) 9.2 μg/m3 (39) 50.0
 
April 9, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 58.0 ppb (61) N/A 24.6 μg/m3 (23) 6.5 μg/m3 (28) 61.0
 
April 9, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (51) N/A 24.9 μg/m3 (24) 6.4 μg/m3 (27) 51.0
 
April 9, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 57.0 ppb (58) N/A 24.0 μg/m3 (23) 6.0 μg/m3 (25) 58.0
 
April 9, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 56.0 ppb (55) N/A 24.7 μg/m3 (23) 5.9 μg/m3 (25) 55.0
 
April 9, 2021, 6 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 54.0 ppb (50) N/A 24.2 μg/m3 (23) 6.1 μg/m3 (26) 50.0
 
April 9, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 49.0 ppb (46) N/A 23.4 μg/m3 (22) 6.0 μg/m3 (25) 46.0
 
April 9, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A 19.8 μg/m3 (19) 6.1 μg/m3 (26) 44.0
 
April 9, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 14.6 μg/m3 (14) 5.5 μg/m3 (23) 42.0
 
April 9, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 15.8 μg/m3 (15) 5.3 μg/m3 (23) 38.0
 
April 9, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 18.2 μg/m3 (17) 5.4 μg/m3 (23) 35.0
 
April 9, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 25.4 μg/m3 (24) 6.3 μg/m3 (27) 27.0
 
April 9, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A 35.6 μg/m3 (33) 7.3 μg/m3 (31) 33.0
 
April 9, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) N/A 27.2 μg/m3 (26) 6.3 μg/m3 (27) 28.0
 
April 9, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 23.9 μg/m3 (23) 5.7 μg/m3 (24) 25.0
 
April 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 34.6 μg/m3 (33) 6.6 μg/m3 (28) 33.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A 18.8 μg/m3 (18) 5.2 μg/m3 (22) 31.0
 
April 9, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 10.6 μg/m3 (10) 4.4 μg/m3 (19) 30.0
 
April 9, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 14.5 μg/m3 (14) 5.0 μg/m3 (21) 35.0
 
April 9, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A 13.2 μg/m3 (13) 4.9 μg/m3 (21) 38.0
 
April 9, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 12.2 μg/m3 (12) 4.6 μg/m3 (20) 38.0
 
April 9, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A 12.7 μg/m3 (12) 4.5 μg/m3 (19) 39.0
 
April 9, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 11.6 μg/m3 (11) 4.1 μg/m3 (18) 40.0
 
April 9, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 12.5 μg/m3 (12) 4.0 μg/m3 (17) 42.0
 
April 8, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 48.0 ppb (45) N/A 14.3 μg/m3 (14) 4.6 μg/m3 (20) 45.0
 
April 8, 2021, 10 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 45.0 ppb (42) N/A 14.2 μg/m3 (14) 4.6 μg/m3 (20) 42.0
 
April 8, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 49.0 ppb (46) N/A 14.6 μg/m3 (14) 4.7 μg/m3 (20) 46.0
 
April 8, 2021, 8 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 46.0 ppb (43) N/A 12.9 μg/m3 (12) 4.3 μg/m3 (18) 43.0
 
April 8, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 14.9 μg/m3 (14) 5.2 μg/m3 (22) 40.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A 10.0 μg/m3 (10) 4.2 μg/m3 (18) 43.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 8.9 μg/m3 (9) 3.8 μg/m3 (16) 42.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A 7.8 μg/m3 (8) 3.4 μg/m3 (15) 39.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 7.4 μg/m3 (7) 3.3 μg/m3 (14) 38.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 7.8 μg/m3 (8) 3.3 μg/m3 (14) 40.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 8.1 μg/m3 (8) 3.4 μg/m3 (15) 40.0
 
April 8, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A 8.4 μg/m3 (8) 3.4 μg/m3 (15) 39.0
 
April 8, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A 8.4 μg/m3 (8) 3.6 μg/m3 (16) 38.0
 
April 8, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 8.9 μg/m3 (9) 3.4 μg/m3 (15) 41.0
 
April 8, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 11.7 μg/m3 (11) 3.8 μg/m3 (16) 33.0
 
April 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 9.7 μg/m3 (9) 4.2 μg/m3 (18) 38.0
 
April 8, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A 21.6 μg/m3 (20) 10.8 μg/m3 (46) 46.0
 
April 8, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (7) N/A 26.5 μg/m3 (25) 11.1 μg/m3 (47) 47.0
 
April 8, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (6) N/A 25.8 μg/m3 (24) 12.2 μg/m3 (52) 52.0
 
April 8, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (9) N/A 32.1 μg/m3 (30) 13.6 μg/m3 (55) 55.0
 
April 8, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (7) N/A 29.8 μg/m3 (28) 13.2 μg/m3 (54) 54.0
 
April 8, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (10) N/A 17.2 μg/m3 (16) 11.2 μg/m3 (47) 47.0
 
April 8, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A 17.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
April 8, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A 15.1 μg/m3 (14) 9.2 μg/m3 (39) 39.0
 
April 7, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 20.5 μg/m3 (19) 9.8 μg/m3 (41) 41.0
 
April 7, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 18.1 μg/m3 (17) 9.1 μg/m3 (38) 38.0
 
April 7, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 20.3 μg/m3 (19) 10.2 μg/m3 (43) 43.0
 
April 7, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) N/A 20.3 μg/m3 (19) 11.6 μg/m3 (49) 49.0
 
April 7, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 22.5 μg/m3 (21) 13.6 μg/m3 (55) 55.0
 
April 7, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 26.2 μg/m3 (25) 14.8 μg/m3 (57) 57.0
 
April 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
April 7, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A N/A 42.0
 
April 7, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) N/A 38.2 μg/m3 (36) 18.8 μg/m3 (66) 66.0
 
April 7, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 40.8 μg/m3 (38) 21.2 μg/m3 (71) 71.0
 
April 7, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) N/A 69.0 μg/m3 (58) 27.5 μg/m3 (84) 84.0
 
April 7, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (13) N/A 60.1 μg/m3 (54) 25.4 μg/m3 (79) 79.0
 
April 7, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 84.9 μg/m3 (66) 24.2 μg/m3 (77) 77.0
 
April 7, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 87.7 μg/m3 (68) 24.5 μg/m3 (78) 78.0
 
April 7, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (10) N/A 57.0 μg/m3 (52) 23.6 μg/m3 (76) 76.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 47.2 μg/m3 (44) 23.1 μg/m3 (75) 75.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A 44.1 μg/m3 (41) 22.0 μg/m3 (72) 72.0
 
April 7, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A 42.8 μg/m3 (40) 20.9 μg/m3 (70) 70.0
 
April 7, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (12) N/A 51.5 μg/m3 (48) 21.2 μg/m3 (71) 71.0
 
April 7, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) N/A 56.3 μg/m3 (52) 28.0 μg/m3 (85) 85.0
 
April 7, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A 60.6 μg/m3 (54) 34.5 μg/m3 (99) 99.0
 
April 7, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A 52.5 μg/m3 (49) 30.0 μg/m3 (89) 89.0
 
April 7, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A 37.2 μg/m3 (35) 20.9 μg/m3 (70) 70.0
 
April 7, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 31.1 μg/m3 (29) 18.0 μg/m3 (64) 64.0
 
April 6, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (49) N/A 29.2 μg/m3 (28) 14.2 μg/m3 (56) 56.0
 
April 6, 2021, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A 26.4 μg/m3 (25) 12.8 μg/m3 (53) 53.0
 
April 6, 2021, 9 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 46.0 ppb (43) N/A 24.8 μg/m3 (23) 10.9 μg/m3 (46) 46.0
 
April 6, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (49) N/A 21.3 μg/m3 (20) 10.8 μg/m3 (46) 49.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 25.1 μg/m3 (24) 13.4 μg/m3 (54) 54.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (43) N/A 27.1 μg/m3 (26) 13.2 μg/m3 (54) 54.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 47.0 ppb (44) N/A 30.5 μg/m3 (29) 13.6 μg/m3 (55) 55.0
 
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 45.0 ppb (42) N/A 29.2 μg/m3 (28) 12.6 μg/m3 (53) 53.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 47.0 ppb (44) N/A 27.8 μg/m3 (26) 11.9 μg/m3 (50) 50.0
 
April 6, 2021, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 35.0 ppb (33) N/A 63.1 μg/m3 (56) 17.5 μg/m3 (63) 63.0
 
April 6, 2021, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 33.0 ppb (31) N/A 88.2 μg/m3 (68) 21.4 μg/m3 (71) 71.0
 
April 6, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (7) N/A 67.4 μg/m3 (58) 19.7 μg/m3 (67) 67.0
 
April 6, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 66.4 μg/m3 (57) 19.2 μg/m3 (66) 66.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 41.0 μg/m3 (38) 17.2 μg/m3 (62) 62.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (4) N/A 34.3 μg/m3 (32) 14.1 μg/m3 (56) 56.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 31.3 μg/m3 (29) 13.3 μg/m3 (54) 54.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (13) N/A 28.9 μg/m3 (27) 12.9 μg/m3 (53) 53.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (11) N/A 31.0 μg/m3 (29) 12.9 μg/m3 (53) 53.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (12) N/A 39.3 μg/m3 (37) 14.2 μg/m3 (56) 56.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (10) N/A 39.5 μg/m3 (37) 11.0 μg/m3 (46) 46.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (16) N/A 28.9 μg/m3 (27) 11.9 μg/m3 (50) 50.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A 27.3 μg/m3 (26) 11.3 μg/m3 (48) 48.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A 36.1 μg/m3 (34) 15.9 μg/m3 (59) 59.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) N/A 37.6 μg/m3 (35) 13.3 μg/m3 (54) 54.0
 
April 5, 2021, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A 22.2 μg/m3 (21) 8.8 μg/m3 (37) 47.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 41.0 ppb (38) N/A 22.0 μg/m3 (21) 9.1 μg/m3 (38) 38.0
 
April 5, 2021, 9 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 51.0 ppb (48) N/A 18.7 μg/m3 (18) 8.7 μg/m3 (37) 48.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 47.0 ppb (44) N/A 30.1 μg/m3 (28) 9.3 μg/m3 (39) 44.0
 
April 5, 2021, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 54.0 ppb (50) N/A 24.9 μg/m3 (24) 9.6 μg/m3 (40) 50.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 48.0 ppb (45) N/A 24.8 μg/m3 (23) 9.9 μg/m3 (42) 45.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 47.0 ppb (44) N/A 22.0 μg/m3 (21) 9.7 μg/m3 (41) 44.0
 
April 5, 2021, 4 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 52.0 ppb (49) N/A 20.9 μg/m3 (20) 10.2 μg/m3 (43) 49.0
 
April 5, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 52.0 ppb (49) N/A 24.8 μg/m3 (23) 10.9 μg/m3 (46) 49.0
 
April 5, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 30.1 μg/m3 (28) 12.2 μg/m3 (52) 52.0
 
April 5, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 50.6 μg/m3 (47) 13.8 μg/m3 (55) 55.0
 
April 5, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A 54.1 μg/m3 (51) 14.0 μg/m3 (55) 55.0
 
April 5, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 96.1 μg/m3 (72) 22.6 μg/m3 (74) 74.0
 
April 5, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 46.5 μg/m3 (44) 16.8 μg/m3 (61) 61.0
 
April 5, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (7) N/A 46.8 μg/m3 (44) 17.3 μg/m3 (62) 62.0
 
April 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 37.9 μg/m3 (36) 18.3 μg/m3 (65) 65.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A -1.0 ppb (0) 12.0 ppb (12) N/A 35.5 μg/m3 (33) 19.5 μg/m3 (67) 67.0
 
April 5, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (13) N/A 43.9 μg/m3 (41) 22.2 μg/m3 (73) 73.0
 
April 5, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) N/A 45.8 μg/m3 (43) 24.7 μg/m3 (78) 78.0
 
April 5, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A 41.7 μg/m3 (39) 25.8 μg/m3 (80) 80.0
 
April 5, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (15) N/A 57.6 μg/m3 (53) 28.8 μg/m3 (87) 87.0
 
April 5, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A 48.7 μg/m3 (46) 27.2 μg/m3 (83) 83.0
 
April 5, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A 51.2 μg/m3 (48) 30.0 μg/m3 (89) 89.0
 
April 5, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 44.1 μg/m3 (41) 28.5 μg/m3 (86) 86.0
 
April 4, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) N/A 33.5 μg/m3 (32) 23.4 μg/m3 (75) 75.0
 
April 4, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 58.0 ppb (61) N/A 32.4 μg/m3 (30) 22.4 μg/m3 (73) 73.0
 
April 4, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 59.0 ppb (65) N/A 33.1 μg/m3 (31) 22.3 μg/m3 (73) 73.0
 
April 4, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 57.0 ppb (58) N/A 34.1 μg/m3 (32) 22.4 μg/m3 (73) 73.0
 
April 4, 2021, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 55.0 ppb (51) N/A 30.1 μg/m3 (28) 20.2 μg/m3 (69) 69.0
 
April 4, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (51) N/A 29.2 μg/m3 (28) 20.5 μg/m3 (69) 69.0
 
April 4, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (49) N/A 25.0 μg/m3 (24) 16.3 μg/m3 (60) 60.0
 
April 4, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) N/A 17.8 μg/m3 (17) 8.8 μg/m3 (37) 45.0
 
April 4, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A 14.1 μg/m3 (14) 7.4 μg/m3 (31) 43.0
 
April 4, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 13.1 μg/m3 (13) 6.7 μg/m3 (28) 41.0
 
April 4, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A 13.3 μg/m3 (13) 6.8 μg/m3 (29) 37.0
 
April 4, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A 18.5 μg/m3 (18) 7.6 μg/m3 (32) 32.0
 
April 4, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (16) N/A 18.9 μg/m3 (18) 7.7 μg/m3 (33) 33.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A 18.2 μg/m3 (17) 8.0 μg/m3 (34) 34.0
 
April 4, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 16.7 μg/m3 (16) 7.8 μg/m3 (33) 33.0
 
April 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 20.6 μg/m3 (20) 8.0 μg/m3 (34) 34.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A 15.0 μg/m3 (14) 7.3 μg/m3 (31) 37.0
 
April 4, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 15.6 μg/m3 (15) 7.3 μg/m3 (31) 40.0
 
April 4, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 23.1 μg/m3 (22) 7.7 μg/m3 (33) 34.0
 
April 4, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 16.5 μg/m3 (16) 7.0 μg/m3 (30) 34.0
 
April 4, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 14.7 μg/m3 (14) 8.0 μg/m3 (34) 40.0
 
April 4, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 11.6 μg/m3 (11) 5.7 μg/m3 (24) 41.0
 
April 4, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 12.6 μg/m3 (12) 5.4 μg/m3 (23) 41.0
 
April 4, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 11.5 μg/m3 (11) 4.7 μg/m3 (20) 40.0
 
April 3, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 13.5 μg/m3 (13) 4.6 μg/m3 (20) 47.0
 
April 3, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) N/A 13.0 μg/m3 (13) 4.6 μg/m3 (20) 48.0
 
April 3, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) N/A 13.4 μg/m3 (13) 4.6 μg/m3 (20) 48.0
 
April 3, 2021, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 48.0 ppb (45) N/A 12.7 μg/m3 (12) 4.5 μg/m3 (19) 45.0
 
April 3, 2021, 7 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 44.0 ppb (41) N/A 10.9 μg/m3 (11) 4.4 μg/m3 (19) 41.0
 
April 3, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 49.0 ppb (46) N/A 11.0 μg/m3 (11) 4.4 μg/m3 (19) 46.0
 
April 3, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A 9.9 μg/m3 (10) 4.4 μg/m3 (19) 44.0
 
April 3, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A 9.2 μg/m3 (9) 4.7 μg/m3 (20) 43.0
 
April 3, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 43.0 ppb (40) N/A 10.8 μg/m3 (10) 4.9 μg/m3 (21) 40.0
 
April 3, 2021, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (25) N/A 18.2 μg/m3 (17) 6.2 μg/m3 (26) 26.0
 
April 3, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A 24.7 μg/m3 (23) 7.7 μg/m3 (33) 33.0
 
April 3, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (12) N/A 23.2 μg/m3 (22) 9.2 μg/m3 (39) 39.0
 
April 3, 2021, 11 a.m. N/A N/A N/A N/A N/A -1.0 ppb (0) 3.0 ppb (3) N/A 21.2 μg/m3 (20) 10.6 μg/m3 (45) 45.0