AQSQID: 421010048

Site Name: New

Location: Philadelphia (Lewis St), PA

Reporting: True, Located: True

Current AQI: 50.0

Philadelphia (Lewis St) PA, US: 39.991389, -75.080833

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 11.0 μg/m3 (46) 46.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 12.1 μg/m3 (50) 50.0
 
May 20, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 15.8 μg/m3 (58) 58.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 10.9 μg/m3 (45) 45.0
 
May 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 20, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 10.1 μg/m3 (42) 42.0
 
May 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 12.0 μg/m3 (50) 50.0
 
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 13.0 μg/m3 (52) 52.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 12.9 μg/m3 (52) 52.0
 
May 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 8.2 μg/m3 (34) 35.0
 
May 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 12.9 μg/m3 (52) 52.0
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 10.8 μg/m3 (45) 45.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 47.0 ppb (36) N/A N/A 5.9 μg/m3 (25) 36.0
 
May 19, 2019, 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 4.1 μg/m3 (17) 35.0
 
May 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 47.0 ppb (36) N/A N/A 6.1 μg/m3 (25) 36.0
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 8.9 μg/m3 (37) 37.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 7.0 μg/m3 (29) 31.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 6.0 μg/m3 (25) 26.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 7.1 μg/m3 (30) 30.0
 
May 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 8.9 μg/m3 (37) 37.0
 
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 N/A 7.1 μg/m3 (30) 30.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 9.9 μg/m3 (41) 41.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 28.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 35.0 ppb (27) N/A N/A 6.1 μg/m3 (25) 27.0
 
May 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 10.1 μg/m3 (42) 42.0
 
May 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 13.0 μg/m3 (52) 52.0
 
May 19, 2019, midnight N/A N/A N/A N/A N/A 3.0 ppb (4) 45.0 ppb (35) N/A N/A 14.0 μg/m3 (54) 54.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 12.9 μg/m3 (52) 52.0
 
May 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A N/A 10.9 μg/m3 (45) 45.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A N/A 8.1 μg/m3 (34) 44.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 56.0 ppb (43) N/A N/A 9.9 μg/m3 (41) 43.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 57.0 ppb (44) N/A N/A 6.9 μg/m3 (29) 44.0
 
May 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 2.9 μg/m3 (12) 41.0
 
May 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 1.0 μg/m3 (4) 37.0
 
May 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 1.1 μg/m3 (5) 34.0
 
May 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 4.1 μg/m3 (17) 31.0
 
May 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 6.1 μg/m3 (25) 26.0
 
May 18, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 11.1 μg/m3 (46) 46.0
 
May 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 13.8 μg/m3 (54) 54.0
 
May 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 7.3 μg/m3 (30) 30.0
 
May 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 15.0 μg/m3 (56) 56.0
 
May 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 15.0 μg/m3 (56) 56.0
 
May 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 15.2 μg/m3 (57) 57.0
 
May 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 21.8 μg/m3 (71) 71.0
 
May 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A 16.7 μg/m3 (60) 60.0
 
May 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 10.0 μg/m3 (42) 42.0
 
May 18, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 10.1 μg/m3 (42) 42.0
 
May 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 45.0 ppb (35) N/A N/A 12.1 μg/m3 (50) 50.0
 
May 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 54.0 ppb (42) N/A N/A 15.0 μg/m3 (56) 56.0
 
May 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 54.0 ppb (42) N/A N/A 14.9 μg/m3 (56) 56.0
 
May 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 56.0 ppb (43) N/A N/A 13.0 μg/m3 (52) 52.0
 
May 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 57.0 ppb (44) N/A N/A 12.0 μg/m3 (50) 50.0
 
May 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 11.0 μg/m3 (46) 46.0
 
May 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 11.2 μg/m3 (47) 47.0
 
May 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 15.9 μg/m3 (58) 58.0
 
May 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A 12.0 μg/m3 (50) 50.0
 
May 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 37.0 ppb (28) N/A N/A 13.1 μg/m3 (52) 52.0
 
May 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 16.1 μg/m3 (59) 59.0
 
May 17, 2019, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (22) N/A N/A 17.8 μg/m3 (62) 62.0
 
May 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 13.1 μg/m3 (52) 52.0
 
May 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 15.0 μg/m3 (56) 56.0
 
May 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 16.0 μg/m3 (59) 59.0
 
May 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 17.0 μg/m3 (61) 61.0
 
May 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 15.9 μg/m3 (58) 58.0
 
May 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 14.0 μg/m3 (54) 54.0
 
May 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 14.1 μg/m3 (54) 54.0
 
May 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 16.0 μg/m3 (59) 59.0
 
May 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 16.8 μg/m3 (60) 60.0
 
May 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A 10.9 μg/m3 (45) 45.0
 
May 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 8.8 μg/m3 (37) 37.0
 
May 17, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
May 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
May 16, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
May 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 5.9 μg/m3 (25) 39.0
 
May 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 3.1 μg/m3 (13) 39.0
 
May 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
May 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
May 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
May 16, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 14.7 μg/m3 (56) 56.0
 
May 16, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A N/A 30.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 16, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 12.0 μg/m3 (50) 50.0
 
May 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 11.9 μg/m3 (50) 50.0
 
May 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A 8.1 μg/m3 (34) 34.0
 
May 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 11.0 μg/m3 (46) 46.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 10.1 μg/m3 (42) 42.0
 
May 16, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 13.8 μg/m3 (54) 54.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A 8.1 μg/m3 (34) 34.0
 
May 16, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 9.8 μg/m3 (41) 41.0
 
May 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 16, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 7.9 μg/m3 (33) 33.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 5.1 μg/m3 (21) 32.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 7.9 μg/m3 (33) 33.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
May 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
May 15, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 3.0 μg/m3 (12) 12.0
 
May 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 2.1 μg/m3 (9) 9.0
 
May 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 3.9 μg/m3 (16) 16.0
 
May 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A N/A 0.0 μg/m3 (0) 9.0
 
May 15, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 0.1 μg/m3 (0) 11.0
 
May 15, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 2.0 μg/m3 (8) 13.0
 
May 15, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A N/A 3.0 μg/m3 (12) 12.0
 
May 15, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 2.0 μg/m3 (8) 17.0
 
May 15, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 1.1 μg/m3 (5) 17.0
 
May 15, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 4.1 μg/m3 (17) 17.0
 
May 15, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 5.8 μg/m3 (24) 24.0
 
May 15, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 1.0 μg/m3 (4) 15.0
 
May 14, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 1.1 μg/m3 (5) 19.0
 
May 14, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 2.9 μg/m3 (12) 18.0
 
May 14, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 1.0 μg/m3 (4) 20.0
 
May 14, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 2.1 μg/m3 (9) 20.0
 
May 14, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 14, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 4.0 μg/m3 (17) 20.0
 
May 14, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 3.0 μg/m3 (12) 19.0
 
May 14, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 4.1 μg/m3 (17) 17.0
 
May 14, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 14, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A 3.0 μg/m3 (12) 12.0
 
May 14, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 2.1 μg/m3 (9) 13.0
 
May 14, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 4.0 μg/m3 (17) 17.0
 
May 14, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 3.9 μg/m3 (16) 18.0
 
May 14, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 1.0 μg/m3 (4) 18.0
 
May 14, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 2.0 μg/m3 (8) 16.0
 
May 14, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 1.9 μg/m3 (8) 17.0
 
May 14, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 0.0 μg/m3 (0) 16.0
 
May 14, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 1.0 μg/m3 (4) 17.0
 
May 14, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 1.0 μg/m3 (4) 17.0
 
May 14, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 2.0 μg/m3 (8) 17.0
 
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 N/A 3.0 μg/m3 (12) 19.0
 
May 14, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 2.0 μg/m3 (8) 20.0
 
May 13, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
May 13, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 3.0 μg/m3 (12) 21.0
 
May 13, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 3.1 μg/m3 (13) 19.0
 
May 13, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 13, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 4.9 μg/m3 (20) 20.0
 
May 13, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 1.0 μg/m3 (4) 25.0
 
May 13, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 2.0 μg/m3 (8) 27.0
 
May 13, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 1.1 μg/m3 (5) 27.0
 
May 13, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
May 13, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
May 13, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.0 μg/m3 (8) 23.0
 
May 13, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 3.0 μg/m3 (12) 20.0
 
May 13, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 3.0 μg/m3 (12) 15.0
 
May 13, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 2.0 μg/m3 (8) 19.0
 
May 13, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.0 μg/m3 (4) 24.0