AQSQID: 211110051

Site Name: Watson

Location: Louisville (Wilken Way), KY

Reporting: True, Located: True

Current AQI: 51.0

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
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A 21.0 μg/m3 (19) 12.6 μg/m3 (51) 51.0
 
May 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 15.0 ppb (12) N/A 28.0 μg/m3 (25) 14.2 μg/m3 (55) 55.0
 
May 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 9.0 ppb (7) N/A 40.0 μg/m3 (36) 16.4 μg/m3 (59) 59.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 46.0 μg/m3 (42) 16.8 μg/m3 (60) 60.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 36.0 μg/m3 (33) 15.9 μg/m3 (58) 58.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A 28.0 μg/m3 (25) 15.8 μg/m3 (58) 58.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A 22.0 μg/m3 (20) 15.1 μg/m3 (57) 57.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A 25.0 μg/m3 (23) 17.0 μg/m3 (61) 61.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 23.0 ppb (18) N/A 37.0 μg/m3 (34) 20.6 μg/m3 (68) 68.0
 
May 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A 40.0 μg/m3 (36) 20.1 μg/m3 (67) 67.0
 
May 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A 28.0 μg/m3 (25) 19.5 μg/m3 (66) 66.0
 
May 19, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A 26.0 μg/m3 (24) 17.1 μg/m3 (61) 61.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 55.0 ppb (42) N/A 27.0 μg/m3 (25) 17.2 μg/m3 (61) 61.0
 
May 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 54.0 ppb (42) N/A 24.0 μg/m3 (22) 16.0 μg/m3 (59) 59.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A 23.0 μg/m3 (21) 15.5 μg/m3 (57) 57.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A 26.0 μg/m3 (24) 15.0 μg/m3 (56) 56.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A 24.0 μg/m3 (22) 14.4 μg/m3 (55) 55.0
 
May 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A 25.0 μg/m3 (23) 14.2 μg/m3 (55) 55.0
 
May 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A 23.0 μg/m3 (21) 14.1 μg/m3 (54) 54.0
 
May 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 41.0 ppb (32) N/A 23.0 μg/m3 (21) 14.5 μg/m3 (55) 55.0
 
May 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 43.0 ppb (33) N/A 25.0 μg/m3 (23) 15.0 μg/m3 (56) 56.0
 
May 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A 22.0 μg/m3 (20) 14.4 μg/m3 (55) 55.0
 
May 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A 23.0 μg/m3 (21) 14.8 μg/m3 (56) 56.0
 
May 18, 2019, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 23.0 ppb (18) N/A 44.0 μg/m3 (40) 17.6 μg/m3 (62) 62.0
 
May 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 38.0 μg/m3 (35) 16.8 μg/m3 (60) 60.0
 
May 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A 40.0 μg/m3 (36) 17.2 μg/m3 (61) 61.0
 
May 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A 45.0 μg/m3 (41) 18.2 μg/m3 (63) 63.0
 
May 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 57.0 μg/m3 (51) 17.9 μg/m3 (63) 63.0
 
May 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A 33.0 μg/m3 (30) 15.2 μg/m3 (57) 57.0
 
May 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A 55.0 μg/m3 (50) 16.9 μg/m3 (60) 60.0
 
May 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A 41.0 μg/m3 (37) 15.6 μg/m3 (58) 58.0
 
May 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A 42.0 μg/m3 (38) 15.2 μg/m3 (57) 57.0
 
May 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A 32.0 μg/m3 (29) 15.0 μg/m3 (56) 56.0
 
May 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A 29.0 μg/m3 (26) 17.0 μg/m3 (61) 61.0
 
May 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A 24.0 μg/m3 (22) 10.9 μg/m3 (45) 45.0
 
May 18, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A 19.0 μg/m3 (17) 9.5 μg/m3 (40) 44.0
 
May 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A 20.0 μg/m3 (18) 9.7 μg/m3 (40) 44.0
 
May 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 58.0 ppb (45) N/A 21.0 μg/m3 (19) 9.8 μg/m3 (41) 45.0
 
May 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) N/A 22.0 μg/m3 (20) 10.7 μg/m3 (45) 45.0
 
May 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 62.0 ppb (48) N/A 22.0 μg/m3 (20) 11.0 μg/m3 (46) 48.0
 
May 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 62.0 ppb (48) N/A 22.0 μg/m3 (20) 11.4 μg/m3 (48) 48.0
 
May 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 63.0 ppb (48) N/A 24.0 μg/m3 (22) 11.1 μg/m3 (46) 48.0
 
May 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 56.0 ppb (43) N/A 23.0 μg/m3 (21) 11.2 μg/m3 (47) 47.0
 
May 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 55.0 ppb (42) N/A N/A N/A 42.0
 
May 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A 23.0 μg/m3 (21) 11.1 μg/m3 (46) 46.0
 
May 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A 22.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
May 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 25.0 μg/m3 (23) 11.3 μg/m3 (47) 47.0
 
May 17, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A 24.0 μg/m3 (22) 11.2 μg/m3 (47) 47.0
 
May 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A 21.0 μg/m3 (19) 10.7 μg/m3 (45) 45.0
 
May 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A 24.0 μg/m3 (22) 11.2 μg/m3 (47) 47.0
 
May 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 25.0 μg/m3 (23) 9.9 μg/m3 (41) 41.0
 
May 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 23.0 μg/m3 (21) 8.2 μg/m3 (34) 34.0
 
May 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 16.0 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
May 17, 2019, 6 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) 5.4 μg/m3 (23) 26.0
 
May 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A 21.0 μg/m3 (19) 5.5 μg/m3 (23) 23.0
 
May 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A 11.0 μg/m3 (10) 3.9 μg/m3 (16) 33.0
 
May 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (34) N/A 12.0 μg/m3 (11) 3.7 μg/m3 (15) 34.0
 
May 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 35.0
 
May 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) N/A 21.0 μg/m3 (19) 6.8 μg/m3 (28) 35.0
 
May 17, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 24.0 μg/m3 (22) 11.4 μg/m3 (48) 48.0
 
May 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A 19.0 μg/m3 (17) 9.6 μg/m3 (40) 40.0
 
May 16, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A 18.0 μg/m3 (16) 8.6 μg/m3 (36) 36.0
 
May 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 42.0 ppb (32) N/A 17.0 μg/m3 (15) 8.4 μg/m3 (35) 35.0
 
May 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 40.0 ppb (31) N/A 16.0 μg/m3 (15) 7.4 μg/m3 (31) 31.0
 
May 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 49.0 ppb (38) N/A 13.0 μg/m3 (12) 6.2 μg/m3 (26) 38.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A 13.0 μg/m3 (12) 5.7 μg/m3 (24) 38.0
 
May 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A 10.0 μg/m3 (9) 5.6 μg/m3 (23) 40.0
 
May 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A 12.0 μg/m3 (11) 5.5 μg/m3 (23) 39.0
 
May 16, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A 14.0 μg/m3 (13) 6.9 μg/m3 (29) 34.0
 
May 16, 2019, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (22) N/A 29.0 μg/m3 (26) 10.7 μg/m3 (45) 45.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A 77.0 μg/m3 (61) 18.6 μg/m3 (64) 64.0
 
May 16, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A 85.0 μg/m3 (65) 19.4 μg/m3 (66) 66.0
 
May 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 36.0 μg/m3 (33) 13.0 μg/m3 (52) 52.0
 
May 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) N/A 51.0 μg/m3 (46) 14.2 μg/m3 (55) 55.0
 
May 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A 30.0 μg/m3 (27) 11.6 μg/m3 (48) 48.0
 
May 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 32.0 μg/m3 (29) 11.2 μg/m3 (47) 47.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A 21.0 μg/m3 (19) 9.4 μg/m3 (39) 39.0
 
May 16, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) N/A 17.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) N/A 22.0 μg/m3 (20) 8.3 μg/m3 (35) 35.0
 
May 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 18.0 μg/m3 (16) 9.5 μg/m3 (40) 40.0
 
May 16, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 18.0 μg/m3 (16) 10.4 μg/m3 (43) 43.0
 
May 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
May 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A 18.0 μg/m3 (16) 9.7 μg/m3 (40) 40.0
 
May 16, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A 16.0 μg/m3 (15) 7.4 μg/m3 (31) 34.0
 
May 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 37.0
 
May 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A 14.0 μg/m3 (13) 7.4 μg/m3 (31) 35.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (36) N/A 15.0 μg/m3 (14) 8.2 μg/m3 (34) 36.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (35) N/A 16.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A 20.0 μg/m3 (18) 8.8 μg/m3 (37) 37.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A 18.0 μg/m3 (16) 8.6 μg/m3 (36) 36.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A 22.0 μg/m3 (20) 8.7 μg/m3 (36) 36.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 28.0 μg/m3 (25) 9.9 μg/m3 (41) 41.0
 
May 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A 41.0 μg/m3 (37) 11.7 μg/m3 (49) 49.0
 
May 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A 50.0 μg/m3 (45) 11.6 μg/m3 (48) 48.0
 
May 15, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A 46.0 μg/m3 (42) 11.4 μg/m3 (48) 48.0
 
May 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A 38.0 μg/m3 (35) 10.8 μg/m3 (45) 45.0
 
May 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) N/A 33.0 μg/m3 (30) 9.4 μg/m3 (39) 39.0
 
May 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A 31.0 μg/m3 (28) 8.8 μg/m3 (37) 37.0
 
May 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 26.0 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 36.0 μg/m3 (33) 9.2 μg/m3 (38) 38.0
 
May 15, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A 38.0 μg/m3 (35) 9.9 μg/m3 (41) 41.0
 
May 15, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 25.0 μg/m3 (23) 8.5 μg/m3 (35) 35.0
 
May 15, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 26.0 μg/m3 (24) 8.6 μg/m3 (36) 36.0
 
May 15, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 18.0 μg/m3 (16) 7.1 μg/m3 (30) 30.0
 
May 15, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A 16.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
May 15, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A 16.0 μg/m3 (15) 6.6 μg/m3 (28) 28.0
 
May 14, 2019, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (34) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 34.0
 
May 14, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 35.0
 
May 14, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 38.0
 
May 14, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 42.0
 
May 14, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 42.0
 
May 14, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (41) N/A 9.0 μg/m3 (8) 4.6 μg/m3 (19) 41.0
 
May 14, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (41) N/A 10.0 μg/m3 (9) 4.4 μg/m3 (18) 41.0
 
May 14, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 38.0
 
May 14, 2019, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (34) N/A 9.0 μg/m3 (8) 4.8 μg/m3 (20) 34.0
 
May 14, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 17.0 μg/m3 (15) 7.3 μg/m3 (30) 30.0
 
May 14, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 25.0 μg/m3 (23) 10.7 μg/m3 (45) 45.0
 
May 14, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (8) N/A 35.0 μg/m3 (32) 10.8 μg/m3 (45) 45.0
 
May 14, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A 46.0 μg/m3 (42) 11.2 μg/m3 (47) 47.0
 
May 14, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A 23.0 μg/m3 (21) 9.2 μg/m3 (38) 38.0
 
May 14, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 6.0 ppb (5) N/A 35.0 μg/m3 (32) 9.5 μg/m3 (40) 40.0
 
May 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
May 14, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) N/A 23.0 μg/m3 (21) 7.8 μg/m3 (32) 32.0
 
May 14, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) N/A 26.0 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
May 14, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) N/A 23.0 μg/m3 (21) 7.9 μg/m3 (33) 33.0
 
May 14, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) N/A 25.0 μg/m3 (23) 9.3 μg/m3 (39) 39.0
 
May 14, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 30.0 μg/m3 (27) 9.7 μg/m3 (40) 40.0
 
May 14, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 24.0 μg/m3 (22) 12.6 μg/m3 (51) 51.0
 
May 14, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 7.4 μg/m3 (31) 31.0
 
May 14, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A 13.0 μg/m3 (12) 6.5 μg/m3 (27) 27.0
 
May 13, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 32.0
 
May 13, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 32.0
 
May 13, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 32.0
 
May 13, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 32.0
 
May 13, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A 9.0 μg/m3 (8) 3.5 μg/m3 (15) 31.0
 
May 13, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 30.0
 
May 13, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
May 13, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A 6.0 μg/m3 (5) 2.4 μg/m3 (10) 32.0
 
May 13, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 33.0
 
May 13, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 31.0
 
May 13, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A 13.0 μg/m3 (12) 8.4 μg/m3 (35) 35.0
 
May 13, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A 16.0 μg/m3 (15) 11.3 μg/m3 (47) 47.0
 
May 13, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 15.0 μg/m3 (14) 10.6 μg/m3 (44) 44.0
 
May 13, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A 14.0 μg/m3 (13) 10.1 μg/m3 (42) 42.0
 
May 13, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 14.0 μg/m3 (13) 10.5 μg/m3 (44) 44.0
 
May 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 15.0 μg/m3 (14) 10.2 μg/m3 (42) 42.0
 
May 13, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 9.2 μg/m3 (38) 38.0
 
May 13, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 14.0 μg/m3 (13) 9.7 μg/m3 (40) 40.0
 
May 13, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 15.0 μg/m3 (14) 10.2 μg/m3 (42) 42.0
 
May 13, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 14.0 μg/m3 (13) 10.8 μg/m3 (45) 45.0
 
May 13, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 18.0 μg/m3 (16) 12.7 μg/m3 (51) 51.0
 
May 13, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 16.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
May 13, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A 14.0 μg/m3 (13) 10.3 μg/m3 (43) 43.0
 
May 13, 2019, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 9.2 μg/m3 (38) 38.0
 
May 12, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
May 12, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A 16.0 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
May 12, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A 15.0 μg/m3 (14) 10.7 μg/m3 (45) 45.0
 
May 12, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 9.5 μg/m3 (40) 40.0
 
May 12, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 15.0 μg/m3 (14) 11.7 μg/m3 (49) 49.0
 
May 12, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A 14.0 μg/m3 (13) 10.7 μg/m3 (45) 45.0
 
May 12, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 9.0 μg/m3 (8) 6.7 μg/m3 (28) 28.0
 
May 12, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
May 12, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 10.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
May 12, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A 10.0 μg/m3 (9) 5.8 μg/m3 (24) 24.0
 
May 12, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 5.6 μg/m3 (23) 23.0
 
May 12, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 22.0
 
May 12, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0