AQSQID: 340390004

Site Name: Elizabeth Trailer

Location: Elizabeth, NJ

Reporting: True, Located: True

Current AQI: 52.0

Elizabeth NJ, US: 40.641441, -74.208366

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 23, 2019, 11 p.m. 56.0 ppb (52) 25.0 ppb (23) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 3.7 μg/m3 (15) 52.0
 
May 23, 2019, 10 p.m. 51.0 ppb (47) 22.0 ppb (20) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 1.0 μg/m3 (4) 47.0
 
May 23, 2019, 9 p.m. 56.0 ppb (52) 24.0 ppb (22) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A N/A 52.0
 
May 23, 2019, 8 p.m. 23.0 ppb (21) 6.0 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 12.6 μg/m3 (51) 51.0
 
May 23, 2019, 7 p.m. 26.0 ppb (24) 10.0 ppb (9) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.7 μg/m3 (60) 60.0
 
May 23, 2019, 6 p.m. 30.0 ppb (28) 14.0 ppb (13) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 5.4 μg/m3 (23) 28.0
 
May 23, 2019, 5 p.m. 40.0 ppb (37) 20.0 ppb (19) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 5.9 μg/m3 (25) 37.0
 
May 23, 2019, 4 p.m. 53.0 ppb (49) 30.0 ppb (28) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 8.4 μg/m3 (35) 49.0
 
May 23, 2019, 3 p.m. 57.0 ppb (53) 33.0 ppb (31) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 8.7 μg/m3 (36) 53.0
 
May 23, 2019, 2 p.m. 71.0 ppb (68) 42.0 ppb (39) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.2 μg/m3 (30) 68.0
 
May 23, 2019, 1 p.m. 93.0 ppb (91) 60.0 ppb (56) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A N/A 91.0
 
May 23, 2019, noon 59.0 ppb (55) 31.0 ppb (29) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 1.6 μg/m3 (7) 55.0
 
May 23, 2019, 11 a.m. 81.0 ppb (79) 47.0 ppb (44) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 8.1 μg/m3 (34) 79.0
 
May 23, 2019, 10 a.m. 84.0 ppb (82) 50.0 ppb (46) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 12.6 μg/m3 (51) 82.0
 
May 23, 2019, 9 a.m. 58.0 ppb (54) 27.0 ppb (25) N/A 30.0 ppb (28) N/A N/A N/A N/A N/A 10.8 μg/m3 (45) 54.0
 
May 23, 2019, 8 a.m. 26.0 ppb (24) 7.0 ppb (6) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
May 23, 2019, 7 a.m. 46.0 ppb (43) 18.0 ppb (17) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.9 μg/m3 (33) 43.0
 
May 23, 2019, 6 a.m. 27.0 ppb (25) 8.0 ppb (7) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
May 23, 2019, 5 a.m. 21.0 ppb (19) 5.0 ppb (5) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 19.0
 
May 23, 2019, 4 a.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
May 23, 2019, 3 a.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
May 23, 2019, 2 a.m. 38.0 ppb (35) 16.0 ppb (15) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 14.4 μg/m3 (55) 55.0
 
May 23, 2019, 1 a.m. 30.0 ppb (28) 9.0 ppb (8) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 22.0 μg/m3 (71) 71.0
 
May 23, 2019, midnight 37.0 ppb (34) 9.0 ppb (8) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 18.5 μg/m3 (64) 64.0
 
May 22, 2019, 11 p.m. 44.0 ppb (41) 11.0 ppb (10) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 12.4 μg/m3 (51) 51.0
 
May 22, 2019, 10 p.m. 52.0 ppb (48) 18.0 ppb (17) N/A 34.0 ppb (31) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 10.4 μg/m3 (43) 48.0
 
May 22, 2019, 9 p.m. 49.0 ppb (45) 18.0 ppb (17) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A N/A 45.0
 
May 22, 2019, 8 p.m. 31.0 ppb (29) 11.0 ppb (10) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 2.5 μg/m3 (10) 29.0
 
May 22, 2019, 7 p.m. 13.0 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 1.0 μg/m3 (4) 12.0
 
May 22, 2019, 6 p.m. 25.0 ppb (23) 9.0 ppb (8) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.3 μg/m3 (1) 23.0
 
May 22, 2019, 5 p.m. 23.0 ppb (21) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.3 μg/m3 (1) 21.0
 
May 22, 2019, 4 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.8 μg/m3 (3) 11.0
 
May 22, 2019, 3 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 1.3 μg/m3 (5) 11.0
 
May 22, 2019, 2 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 1.1 μg/m3 (5) 16.0
 
May 22, 2019, 1 p.m. 22.0 ppb (20) 10.0 ppb (9) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 20.0
 
May 22, 2019, noon 25.0 ppb (23) 10.0 ppb (9) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 1.5 μg/m3 (6) 23.0
 
May 22, 2019, 11 a.m. 35.0 ppb (32) 15.0 ppb (14) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 3.9 μg/m3 (16) 32.0
 
May 22, 2019, 10 a.m. 36.0 ppb (33) 11.0 ppb (10) N/A 24.0 ppb (22) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.6 μg/m3 (32) 33.0
 
May 22, 2019, 9 a.m. 40.0 ppb (37) 13.0 ppb (12) N/A 27.0 ppb (25) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 37.0
 
May 22, 2019, 8 a.m. 16.0 ppb (15) 3.0 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.5 μg/m3 (27) 27.0
 
May 22, 2019, 7 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
May 22, 2019, 6 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
May 22, 2019, 5 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 7.0
 
May 22, 2019, 4 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
May 22, 2019, 3 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
May 22, 2019, 2 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
May 22, 2019, 1 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
May 22, 2019, midnight 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
May 21, 2019, 11 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
May 21, 2019, 10 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.6 μg/m3 (23) 23.0
 
May 21, 2019, 9 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 9.0
 
May 21, 2019, 8 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.9 μg/m3 (4) 10.0
 
May 21, 2019, 7 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 6 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
May 21, 2019, 5 p.m. 12.0 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 2.5 μg/m3 (10) 11.0
 
May 21, 2019, 4 p.m. 10.0 ppb (9) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.4 μg/m3 (2) 9.0
 
May 21, 2019, 3 p.m. 13.0 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 1.1 μg/m3 (5) 12.0
 
May 21, 2019, 2 p.m. 13.0 ppb (12) 7.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
May 21, 2019, 1 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 13.0
 
May 21, 2019, noon 16.0 ppb (15) 8.0 ppb (7) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.9 μg/m3 (4) 15.0
 
May 21, 2019, 11 a.m. 14.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 1.4 μg/m3 (6) 13.0
 
May 21, 2019, 10 a.m. 18.0 ppb (17) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 3.1 μg/m3 (13) 17.0
 
May 21, 2019, 9 a.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
May 21, 2019, 8 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
May 21, 2019, 7 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
May 21, 2019, 6 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 10.8 μg/m3 (45) 45.0
 
May 21, 2019, 5 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 5.0
 
May 21, 2019, 4 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 10.9 μg/m3 (45) 45.0
 
May 21, 2019, 3 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 12.2 μg/m3 (50) 50.0
 
May 21, 2019, 2 a.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 15.1 μg/m3 (57) 57.0
 
May 21, 2019, 1 a.m. 12.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 16.8 μg/m3 (60) 60.0
 
May 21, 2019, midnight 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 14.2 μg/m3 (55) 55.0
 
May 20, 2019, 11 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.9 μg/m3 (60) 60.0
 
May 20, 2019, 10 p.m. 24.0 ppb (22) 7.0 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 22.4 μg/m3 (72) 72.0
 
May 20, 2019, 9 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 16.0
 
May 20, 2019, 8 p.m. 24.0 ppb (22) 9.0 ppb (8) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 22.0
 
May 20, 2019, 7 p.m. 24.0 ppb (22) 9.0 ppb (8) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 22.0
 
May 20, 2019, 6 p.m. 30.0 ppb (28) 12.0 ppb (11) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 28.0
 
May 20, 2019, 5 p.m. 24.0 ppb (22) 9.0 ppb (8) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 22.0
 
May 20, 2019, 4 p.m. 23.0 ppb (21) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 21.0
 
May 20, 2019, 3 p.m. 23.0 ppb (21) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 21.0
 
May 20, 2019, 2 p.m. 21.0 ppb (19) 9.0 ppb (8) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 19.0
 
May 20, 2019, 1 p.m. 24.0 ppb (22) 10.0 ppb (9) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A N/A 22.0
 
May 20, 2019, noon 31.0 ppb (29) 13.0 ppb (12) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 16.4 μg/m3 (59) 59.0
 
May 20, 2019, 11 a.m. 41.0 ppb (38) 18.0 ppb (17) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 18.1 μg/m3 (63) 63.0
 
May 20, 2019, 10 a.m. 67.0 ppb (64) 36.0 ppb (33) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A N/A N/A 21.2 μg/m3 (70) 70.0
 
May 20, 2019, 9 a.m. 77.0 ppb (74) 41.0 ppb (38) N/A 36.0 ppb (33) N/A N/A N/A N/A N/A 17.0 μg/m3 (61) 74.0
 
May 20, 2019, 8 a.m. 38.0 ppb (35) 15.0 ppb (14) N/A 22.0 ppb (20) N/A N/A N/A 0.4 ppb (4) N/A 10.4 μg/m3 (43) 43.0
 
May 20, 2019, 7 a.m. 45.0 ppb (42) 12.0 ppb (11) N/A 32.0 ppb (30) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 8.9 μg/m3 (37) 42.0
 
May 20, 2019, 6 a.m. 33.0 ppb (31) 5.0 ppb (5) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 9.5 μg/m3 (40) 40.0
 
May 20, 2019, 5 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 12.0
 
May 20, 2019, 4 a.m. 18.0 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 12.1 μg/m3 (50) 50.0
 
May 20, 2019, 3 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 13.1 μg/m3 (52) 52.0
 
May 20, 2019, 2 a.m. 16.0 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 14.1 μg/m3 (54) 54.0
 
May 20, 2019, 1 a.m. 16.0 ppb (15) 4.0 ppb (4) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 13.1 μg/m3 (52) 52.0
 
May 20, 2019, midnight 27.0 ppb (25) 12.0 ppb (11) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 11.4 μg/m3 (48) 48.0
 
May 19, 2019, 11 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 9.5 μg/m3 (40) 40.0
 
May 19, 2019, 10 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 7.0 μg/m3 (29) 29.0
 
May 19, 2019, 9 p.m. 14.0 ppb (13) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A N/A 13.0
 
May 19, 2019, 8 p.m. 13.0 ppb (12) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 1.4 μg/m3 (6) 12.0
 
May 19, 2019, 7 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 3.9 μg/m3 (16) 16.0
 
May 19, 2019, 6 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 8.4 μg/m3 (35) 35.0
 
May 19, 2019, 5 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
May 19, 2019, 4 p.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 1.0 μg/m3 (4) 11.0
 
May 19, 2019, 3 p.m. 15.0 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A -1.3 μg/m3 (0) 14.0
 
May 19, 2019, 2 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 16.0
 
May 19, 2019, 1 p.m. 21.0 ppb (19) 8.0 ppb (7) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 19.0
 
May 19, 2019, noon 17.0 ppb (16) 5.0 ppb (5) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A -1.4 μg/m3 (0) 16.0
 
May 19, 2019, 11 a.m. 17.0 ppb (16) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 2.5 μg/m3 (10) 16.0
 
May 19, 2019, 10 a.m. 17.0 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 4.8 μg/m3 (20) 20.0
 
May 19, 2019, 9 a.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 10.1 μg/m3 (42) 42.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 11.6 μg/m3 (48) 48.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 14.9 μg/m3 (56) 56.0
 
May 19, 2019, 5 a.m. 19.0 ppb (18) 3.0 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 18.0
 
May 19, 2019, 4 a.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.8 μg/m3 (60) 60.0
 
May 19, 2019, 3 a.m. 19.0 ppb (18) 4.0 ppb (4) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 22.7 μg/m3 (73) 73.0
 
May 19, 2019, 2 a.m. 21.0 ppb (19) 5.0 ppb (5) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.6 μg/m3 (60) 60.0
 
May 19, 2019, 1 a.m. 23.0 ppb (21) 4.0 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 13.9 μg/m3 (54) 54.0
 
May 19, 2019, midnight 21.0 ppb (19) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 11.5 μg/m3 (48) 48.0
 
May 18, 2019, 11 p.m. 23.0 ppb (21) 4.0 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.8 μg/m3 (32) 32.0
 
May 18, 2019, 10 p.m. 19.0 ppb (18) 4.0 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 4.1 μg/m3 (17) 18.0
 
May 18, 2019, 9 p.m. 12.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 11.0
 
May 18, 2019, 8 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 2.2 μg/m3 (9) 10.0
 
May 18, 2019, 7 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.3 μg/m3 (1) 6.0
 
May 18, 2019, 6 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -0.8 μg/m3 (0) 5.0
 
May 18, 2019, 5 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -1.4 μg/m3 (0) 5.0
 
May 18, 2019, 4 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -2.1 μg/m3 (0) 4.0
 
May 18, 2019, 3 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -3.4 μg/m3 (0) 4.0
 
May 18, 2019, 2 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -4.3 μg/m3 (0) 6.0
 
May 18, 2019, 1 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 6.0
 
May 18, 2019, noon 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 1.7 μg/m3 (7) 7.0
 
May 18, 2019, 11 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.6 μg/m3 (23) 23.0
 
May 18, 2019, 10 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
May 18, 2019, 9 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2019, 8 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
May 18, 2019, 7 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 17.9 μg/m3 (63) 63.0
 
May 18, 2019, 6 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 21.8 μg/m3 (71) 71.0
 
May 18, 2019, 5 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 6.0
 
May 18, 2019, 4 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 13.6 μg/m3 (53) 53.0
 
May 18, 2019, 3 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
May 18, 2019, 2 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 6.7 μg/m3 (28) 28.0
 
May 18, 2019, 1 a.m. 13.0 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 7.4 μg/m3 (31) 31.0
 
May 18, 2019, midnight 21.0 ppb (19) 3.0 ppb (3) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 9.3 μg/m3 (39) 39.0
 
May 17, 2019, 11 p.m. 13.0 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 11.8 μg/m3 (49) 49.0
 
May 17, 2019, 10 p.m. 16.0 ppb (15) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 12.4 μg/m3 (51) 51.0
 
May 17, 2019, 9 p.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 14.0
 
May 17, 2019, 8 p.m. 17.0 ppb (16) 4.0 ppb (4) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 17, 2019, 7 p.m. 22.0 ppb (20) 7.0 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
May 17, 2019, 6 p.m. 33.0 ppb (31) 12.0 ppb (11) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 12.3 μg/m3 (51) 51.0
 
May 17, 2019, 5 p.m. 38.0 ppb (35) 10.0 ppb (9) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 15.6 μg/m3 (58) 58.0
 
May 17, 2019, 4 p.m. 30.0 ppb (28) 8.0 ppb (7) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 12.1 μg/m3 (50) 50.0
 
May 17, 2019, 3 p.m. 32.0 ppb (30) 12.0 ppb (11) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 10.9 μg/m3 (45) 45.0
 
May 17, 2019, 2 p.m. 52.0 ppb (48) 23.0 ppb (21) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 9.8 μg/m3 (41) 48.0
 
May 17, 2019, 1 p.m. 48.0 ppb (44) 21.0 ppb (19) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A 0.5 ppb (6) N/A N/A 44.0
 
May 17, 2019, noon 49.0 ppb (45) 21.0 ppb (19) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A 0.5 ppb (6) N/A 14.1 μg/m3 (54) 54.0
 
May 17, 2019, 11 a.m. 55.0 ppb (51) 24.0 ppb (22) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 17.4 μg/m3 (61) 61.0
 
May 17, 2019, 10 a.m. 59.0 ppb (55) 26.0 ppb (24) N/A 32.0 ppb (30) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 20.3 μg/m3 (68) 68.0
 
May 17, 2019, 9 a.m. 46.0 ppb (43) 14.0 ppb (13) N/A 31.0 ppb (29) N/A N/A N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
May 17, 2019, 8 a.m. 33.0 ppb (31) 7.0 ppb (6) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.3 μg/m3 (59) 59.0
 
May 17, 2019, 7 a.m. 27.0 ppb (25) 6.0 ppb (6) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 14.4 μg/m3 (55) 55.0
 
May 17, 2019, 6 a.m. 34.0 ppb (31) 7.0 ppb (6) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 13.9 μg/m3 (54) 54.0
 
May 17, 2019, 5 a.m. 79.0 ppb (77) 31.0 ppb (29) N/A 47.0 ppb (44) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A N/A 77.0
 
May 17, 2019, 4 a.m. 66.0 ppb (63) 21.0 ppb (19) N/A 45.0 ppb (42) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 19.0 μg/m3 (65) 65.0
 
May 17, 2019, 3 a.m. 87.0 ppb (85) 37.0 ppb (34) N/A 49.0 ppb (45) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 19.8 μg/m3 (67) 85.0
 
May 17, 2019, 2 a.m. 70.0 ppb (67) 24.0 ppb (22) N/A 46.0 ppb (43) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 14.4 μg/m3 (55) 67.0
 
May 17, 2019, 1 a.m. 75.0 ppb (72) 28.0 ppb (26) N/A 47.0 ppb (44) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 12.6 μg/m3 (51) 72.0
 
May 17, 2019, midnight 32.0 ppb (30) 2.0 ppb (2) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0