AQSQID: 340390004

Site Name: Elizabeth Trailer

Location: Elizabeth, NJ

Reporting: True, Located: True

Current AQI: 44.0

Elizabeth NJ, US: 40.641441, -74.208366

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 21, 2019, 10 a.m. 65.0 ppb (62) 24.0 ppb (22) N/A 41.0 ppb (38) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.9 μg/m3 (33) 62.0
 
March 21, 2019, 9 a.m. 47.0 ppb (44) 12.0 ppb (11) N/A 34.0 ppb (31) N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 44.0
 
March 21, 2019, 8 a.m. 38.0 ppb (35) 7.0 ppb (6) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 7.0 μg/m3 (29) 35.0
 
March 21, 2019, 7 a.m. 25.0 ppb (23) 3.0 ppb (3) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 13.8 μg/m3 (54) 54.0
 
March 21, 2019, 6 a.m. 27.0 ppb (25) 3.0 ppb (3) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 18.5 μg/m3 (64) 64.0
 
March 21, 2019, 5 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A N/A 19.0
 
March 21, 2019, 4 a.m. 29.0 ppb (27) 2.0 ppb (2) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 10.5 μg/m3 (44) 44.0
 
March 21, 2019, 3 a.m. 38.0 ppb (35) 4.0 ppb (4) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
March 21, 2019, 2 a.m. 58.0 ppb (54) 16.0 ppb (15) N/A 42.0 ppb (39) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 11.0 μg/m3 (46) 54.0
 
March 21, 2019, 1 a.m. 58.0 ppb (54) 16.0 ppb (15) N/A 41.0 ppb (38) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 11.5 μg/m3 (48) 54.0
 
March 21, 2019, midnight 47.0 ppb (44) 13.0 ppb (12) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 12.2 μg/m3 (50) 50.0
 
March 20, 2019, 11 p.m. 31.0 ppb (29) 10.0 ppb (9) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 14.2 μg/m3 (55) 55.0
 
March 20, 2019, 10 p.m. 34.0 ppb (31) 12.0 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
March 20, 2019, 9 p.m. 36.0 ppb (33) 15.0 ppb (14) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A N/A 33.0
 
March 20, 2019, 8 p.m. 40.0 ppb (37) 15.0 ppb (14) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 6.8 μg/m3 (28) 37.0
 
March 20, 2019, 7 p.m. 40.0 ppb (37) 16.0 ppb (15) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 7.0 μg/m3 (29) 37.0
 
March 20, 2019, 6 p.m. 49.0 ppb (45) 22.0 ppb (20) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 6.6 μg/m3 (28) 45.0
 
March 20, 2019, 5 p.m. 52.0 ppb (48) 25.0 ppb (23) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 8.8 μg/m3 (37) 48.0
 
March 20, 2019, 4 p.m. 69.0 ppb (66) 36.0 ppb (33) N/A 32.0 ppb (30) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 11.6 μg/m3 (48) 66.0
 
March 20, 2019, 3 p.m. 83.0 ppb (81) 45.0 ppb (42) N/A 37.0 ppb (34) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 17.3 μg/m3 (61) 81.0
 
March 20, 2019, 2 p.m. 94.0 ppb (93) 55.0 ppb (51) N/A 39.0 ppb (36) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 22.2 μg/m3 (72) 93.0
 
March 20, 2019, 1 p.m. 143.0 ppb (108) 94.0 ppb (93) N/A 47.0 ppb (44) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A N/A 108.0
 
March 20, 2019, noon 141.0 ppb (108) 90.0 ppb (88) N/A 51.0 ppb (47) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 23.5 μg/m3 (74) 108.0
 
March 20, 2019, 11 a.m. 197.0 ppb (118) 140.0 ppb (108) N/A 56.0 ppb (52) N/A 1.0 ppb (1) N/A 0.5 ppb (6) N/A 23.4 μg/m3 (74) 118.0
 
March 20, 2019, 10 a.m. 178.0 ppb (115) 124.0 ppb (104) N/A 54.0 ppb (50) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 20.5 μg/m3 (68) 115.0
 
March 20, 2019, 9 a.m. 109.0 ppb (102) 59.0 ppb (55) N/A 49.0 ppb (45) N/A N/A N/A N/A N/A 19.5 μg/m3 (66) 102.0
 
March 20, 2019, 8 a.m. 51.0 ppb (47) 9.0 ppb (8) N/A 41.0 ppb (38) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 19.3 μg/m3 (66) 66.0
 
March 20, 2019, 7 a.m. 74.0 ppb (71) 27.0 ppb (25) N/A 46.0 ppb (43) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 18.1 μg/m3 (63) 71.0
 
March 20, 2019, 6 a.m. 42.0 ppb (39) 6.0 ppb (6) N/A 35.0 ppb (32) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 16.1 μg/m3 (59) 59.0
 
March 20, 2019, 5 a.m. 31.0 ppb (29) 6.0 ppb (6) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A N/A 29.0
 
March 20, 2019, 4 a.m. 43.0 ppb (40) 9.0 ppb (8) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 13.4 μg/m3 (53) 53.0
 
March 20, 2019, 3 a.m. 39.0 ppb (36) 8.0 ppb (7) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 13.2 μg/m3 (53) 53.0
 
March 20, 2019, 2 a.m. 30.0 ppb (28) 2.0 ppb (2) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 13.8 μg/m3 (54) 54.0
 
March 20, 2019, 1 a.m. 36.0 ppb (33) 9.0 ppb (8) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 13.2 μg/m3 (53) 53.0
 
March 20, 2019, midnight 39.0 ppb (36) 7.0 ppb (6) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 10.5 μg/m3 (44) 44.0
 
March 19, 2019, 11 p.m. 22.0 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.3 μg/m3 (30) 30.0
 
March 19, 2019, 10 p.m. 17.0 ppb (16) 3.0 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
March 19, 2019, 9 p.m. 15.0 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A N/A 14.0
 
March 19, 2019, 8 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -2.2 μg/m3 (0) 11.0
 
March 19, 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 0.1 ppb (1) N/A -3.6 μg/m3 (0) 12.0
 
March 19, 2019, 6 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -2.1 μg/m3 (0) 14.0
 
March 19, 2019, 5 p.m. 23.0 ppb (21) 10.0 ppb (9) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -1.9 μg/m3 (0) 21.0
 
March 19, 2019, 4 p.m. 20.0 ppb (19) 8.0 ppb (7) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A -0.8 μg/m3 (0) 19.0
 
March 19, 2019, 3 p.m. 19.0 ppb (18) 7.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 1.7 μg/m3 (7) 18.0
 
March 19, 2019, midnight 20.0 ppb (19) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 11 p.m. 18.0 ppb (17) 2.0 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.7 μg/m3 (32) 32.0
 
March 18, 2019, 10 p.m. 15.0 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
March 18, 2019, 9 p.m. 21.0 ppb (19) 7.0 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A N/A 19.0
 
March 18, 2019, 8 p.m. 19.0 ppb (18) 7.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.0 μg/m3 (0) 18.0
 
March 18, 2019, 7 p.m. 15.0 ppb (14) 4.0 ppb (4) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -2.7 μg/m3 (0) 14.0
 
March 18, 2019, 6 p.m. 16.0 ppb (15) 6.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 15.0
 
March 18, 2019, 5 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 14.0
 
March 18, 2019, 4 p.m. 17.0 ppb (16) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A -3.3 μg/m3 (0) 16.0
 
March 18, 2019, 3 p.m. 16.0 ppb (15) 6.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 0.0 μg/m3 (0) 15.0
 
March 18, 2019, 2 p.m. 22.0 ppb (20) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 3.1 μg/m3 (13) 20.0
 
March 18, 2019, 1 p.m. 25.0 ppb (23) 9.0 ppb (8) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 23.0
 
March 18, 2019, noon 86.0 ppb (84) 47.0 ppb (44) N/A 38.0 ppb (35) N/A 0.0 ppb (0) N/A 0.7 ppb (8) N/A 15.0 μg/m3 (56) 84.0
 
March 18, 2019, 11 a.m. 134.0 ppb (106) 86.0 ppb (84) N/A 48.0 ppb (44) N/A 0.0 ppb (0) N/A 1.0 ppb (11) N/A 11.3 μg/m3 (47) 106.0
 
March 18, 2019, 10 a.m. 126.0 ppb (105) 78.0 ppb (76) N/A 47.0 ppb (44) N/A 0.0 ppb (0) N/A N/A N/A 10.1 μg/m3 (42) 105.0
 
March 18, 2019, 9 a.m. 105.0 ppb (101) 58.0 ppb (54) N/A 47.0 ppb (44) N/A N/A N/A N/A N/A 9.4 μg/m3 (39) 101.0
 
March 18, 2019, 8 a.m. 90.0 ppb (88) 44.0 ppb (41) N/A 45.0 ppb (42) N/A N/A N/A 0.6 ppb (7) N/A 9.5 μg/m3 (40) 88.0
 
March 18, 2019, 7 a.m. 67.0 ppb (64) 24.0 ppb (22) N/A 42.0 ppb (39) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 8.5 μg/m3 (35) 64.0
 
March 18, 2019, 6 a.m. 24.0 ppb (22) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
March 18, 2019, 5 a.m. 14.0 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 13.0
 
March 18, 2019, 4 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.8 μg/m3 (32) 32.0
 
March 18, 2019, 3 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 8.5 μg/m3 (35) 35.0
 
March 18, 2019, 2 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 8.4 μg/m3 (35) 35.0
 
March 18, 2019, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 8.1 μg/m3 (34) 34.0
 
March 18, 2019, midnight 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
March 17, 2019, 11 p.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
March 17, 2019, 10 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -0.2 μg/m3 (0) 4.0
 
March 17, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 3.0
 
March 17, 2019, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -2.7 μg/m3 (0) 3.0
 
March 17, 2019, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -0.8 μg/m3 (0) 3.0
 
March 17, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 17, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 2.1 μg/m3 (9) 9.0
 
March 17, 2019, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -1.9 μg/m3 (0) 3.0
 
March 17, 2019, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A -0.4 μg/m3 (0) 3.0
 
March 17, 2019, 2 p.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 1.3 μg/m3 (5) 5.0
 
March 17, 2019, 1 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 5.0
 
March 17, 2019, noon 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 5.1 μg/m3 (21) 21.0
 
March 17, 2019, 11 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
March 17, 2019, 10 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
March 17, 2019, 9 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.8 μg/m3 (24) 24.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 10.9 μg/m3 (45) 45.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
March 17, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 4.0
 
March 17, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 0.3 μg/m3 (1) 3.0
 
March 17, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
March 17, 2019, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
March 17, 2019, 1 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
March 17, 2019, midnight 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
March 16, 2019, 11 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 10.8 μg/m3 (45) 45.0
 
March 16, 2019, 10 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
March 16, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A N/A 3.0
 
March 16, 2019, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A -2.3 μg/m3 (0) 3.0
 
March 16, 2019, 7 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A -3.3 μg/m3 (0) 5.0
 
March 16, 2019, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A -2.8 μg/m3 (0) 5.0
 
March 16, 2019, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A -1.8 μg/m3 (0) 5.0
 
March 16, 2019, 4 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 0.1 μg/m3 (0) 5.0
 
March 16, 2019, 3 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
March 16, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 1.7 μg/m3 (7) 7.0
 
March 16, 2019, 1 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A N/A 5.0
 
March 16, 2019, noon 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 1.6 μg/m3 (7) 7.0
 
March 16, 2019, 11 a.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 2.0 μg/m3 (8) 11.0
 
March 16, 2019, 10 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 16, 2019, 9 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
March 16, 2019, 8 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
March 16, 2019, 7 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 10.4 μg/m3 (43) 43.0
 
March 16, 2019, 6 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 18.6 μg/m3 (64) 64.0
 
March 16, 2019, 5 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A N/A 6.0
 
March 16, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 19.6 μg/m3 (66) 66.0
 
March 16, 2019, 3 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 11.8 μg/m3 (49) 49.0
 
March 16, 2019, 2 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 14.5 μg/m3 (55) 55.0
 
March 16, 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 0.3 ppb (3) N/A 10.6 μg/m3 (44) 44.0
 
March 16, 2019, midnight 13.0 ppb (12) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
March 15, 2019, 11 p.m. 27.0 ppb (25) 7.0 ppb (6) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.2 μg/m3 (30) 30.0
 
March 15, 2019, 10 p.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 7.0 μg/m3 (29) 33.0
 
March 15, 2019, 9 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 N/A 29.0
 
March 15, 2019, 8 p.m. 25.0 ppb (23) 8.0 ppb (7) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.2 μg/m3 (30) 30.0
 
March 15, 2019, 7 p.m. 22.0 ppb (20) 7.0 ppb (6) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
March 15, 2019, 6 p.m. 27.0 ppb (25) 10.0 ppb (9) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 5.7 μg/m3 (24) 25.0
 
March 15, 2019, 5 p.m. 30.0 ppb (28) 12.0 ppb (11) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
March 15, 2019, 4 p.m. 26.0 ppb (24) 10.0 ppb (9) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 13.5 μg/m3 (53) 53.0
 
March 15, 2019, 3 p.m. 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 21.9 μg/m3 (71) 71.0
 
March 15, 2019, 2 p.m. 28.0 ppb (26) 11.0 ppb (10) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 26.9 μg/m3 (82) 82.0
 
March 15, 2019, 1 p.m. 57.0 ppb (53) 28.0 ppb (26) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 53.0
 
March 15, 2019, noon 88.0 ppb (86) 46.0 ppb (43) N/A 41.0 ppb (38) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 1.3 μg/m3 (5) 86.0
 
March 15, 2019, 11 a.m. 96.0 ppb (95) 52.0 ppb (48) N/A 43.0 ppb (40) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 1.8 μg/m3 (8) 95.0
 
March 15, 2019, 10 a.m. 116.0 ppb (103) 67.0 ppb (64) N/A 48.0 ppb (44) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 9.9 μg/m3 (41) 103.0
 
March 15, 2019, 9 a.m. 159.0 ppb (111) 102.0 ppb (100) N/A 56.0 ppb (52) N/A N/A N/A N/A N/A 14.3 μg/m3 (55) 111.0
 
March 15, 2019, 8 a.m. 131.0 ppb (106) 75.0 ppb (72) N/A 56.0 ppb (52) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 11.6 μg/m3 (48) 106.0
 
March 15, 2019, 7 a.m. 99.0 ppb (98) 43.0 ppb (40) N/A 55.0 ppb (51) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 10.1 μg/m3 (42) 98.0
 
March 15, 2019, 6 a.m. 74.0 ppb (71) 24.0 ppb (22) N/A 50.0 ppb (46) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.7 μg/m3 (32) 71.0
 
March 15, 2019, 5 a.m. 64.0 ppb (61) 18.0 ppb (17) N/A 46.0 ppb (43) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 61.0
 
March 15, 2019, 4 a.m. 63.0 ppb (60) 17.0 ppb (16) N/A 45.0 ppb (42) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.9 μg/m3 (33) 60.0
 
March 15, 2019, 3 a.m. 52.0 ppb (48) 11.0 ppb (10) N/A 40.0 ppb (37) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 7.4 μg/m3 (31) 48.0
 
March 15, 2019, 2 a.m. 35.0 ppb (32) 5.0 ppb (5) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 12.9 μg/m3 (52) 52.0
 
March 15, 2019, 1 a.m. 39.0 ppb (36) 8.0 ppb (7) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 20.3 μg/m3 (68) 68.0
 
March 15, 2019, midnight 40.0 ppb (37) 7.0 ppb (6) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 23.5 μg/m3 (74) 74.0
 
March 14, 2019, 11 p.m. 44.0 ppb (41) 8.0 ppb (7) N/A 34.0 ppb (31) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 20.2 μg/m3 (67) 67.0
 
March 14, 2019, 10 p.m. 56.0 ppb (52) 15.0 ppb (14) N/A 41.0 ppb (38) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 18.2 μg/m3 (63) 63.0
 
March 14, 2019, 9 p.m. 36.0 ppb (33) 8.0 ppb (7) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 10.1 μg/m3 (42) 42.0
 
March 14, 2019, 8 p.m. 38.0 ppb (35) 11.0 ppb (10) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 6.5 μg/m3 (27) 35.0
 
March 14, 2019, 7 p.m. 30.0 ppb (28) 9.0 ppb (8) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A N/A 28.0
 
March 14, 2019, 6 p.m. 32.0 ppb (30) 11.0 ppb (10) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 30.0
 
March 14, 2019, 5 p.m. 33.0 ppb (31) 12.0 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 31.0
 
March 14, 2019, 4 p.m. 39.0 ppb (36) 15.0 ppb (14) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 36.0
 
March 14, 2019, 3 p.m. 47.0 ppb (44) 19.0 ppb (18) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.2 μg/m3 (26) 44.0
 
March 14, 2019, 2 p.m. 42.0 ppb (39) 17.0 ppb (16) N/A 24.0 ppb (22) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.1 μg/m3 (25) 39.0
 
March 14, 2019, 1 p.m. 64.0 ppb (61) 32.0 ppb (30) N/A 32.0 ppb (30) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 61.0
 
March 14, 2019, noon 73.0 ppb (70) 32.0 ppb (30) N/A 40.0 ppb (37) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 8.3 μg/m3 (35) 70.0
 
March 14, 2019, 11 a.m. 77.0 ppb (74) 31.0 ppb (29) N/A 45.0 ppb (42) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 8.6 μg/m3 (36) 74.0
 
March 14, 2019, 10 a.m. 70.0 ppb (67) 25.0 ppb (23) N/A 44.0 ppb (41) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 8.5 μg/m3 (35) 67.0
 
March 14, 2019, 9 a.m. 70.0 ppb (67) 27.0 ppb (25) N/A 43.0 ppb (40) N/A N/A N/A N/A N/A 7.6 μg/m3 (32) 67.0
 
March 14, 2019, 8 a.m. 56.0 ppb (52) 15.0 ppb (14) N/A 40.0 ppb (37) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.4 μg/m3 (27) 52.0
 
March 14, 2019, 7 a.m. 56.0 ppb (52) 15.0 ppb (14) N/A 41.0 ppb (38) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.7 μg/m3 (24) 52.0
 
March 14, 2019, 6 a.m. 35.0 ppb (32) 8.0 ppb (7) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 6.5 μg/m3 (27) 32.0
 
March 14, 2019, 5 a.m. 37.0 ppb (34) 8.0 ppb (7) N/A 29.0 ppb (27) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A N/A 34.0
 
March 14, 2019, 4 a.m. 31.0 ppb (29) 3.0 ppb (3) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 12.6 μg/m3 (51) 51.0
 
March 14, 2019, 3 a.m. 38.0 ppb (35) 8.0 ppb (7) N/A 29.0 ppb (27) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 17.6 μg/m3 (62) 62.0
 
March 14, 2019, 2 a.m. 43.0 ppb (40) 8.0 ppb (7) N/A 33.0 ppb (31) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 24.9 μg/m3 (77) 77.0
 
March 14, 2019, 1 a.m. 48.0 ppb (44) 13.0 ppb (12) N/A 35.0 ppb (32) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 24.3 μg/m3 (76) 76.0
 
March 14, 2019, midnight 55.0 ppb (51) 16.0 ppb (15) N/A 38.0 ppb (35) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 11.5 μg/m3 (48) 51.0
 
March 13, 2019, 11 p.m. 55.0 ppb (51) 18.0 ppb (17) N/A 37.0 ppb (34) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 14.1 μg/m3 (54) 54.0
 
March 13, 2019, 10 p.m. 61.0 ppb (57) 21.0 ppb (19) N/A 39.0 ppb (36) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 17.1 μg/m3 (61) 61.0
 
March 13, 2019, 9 p.m. 53.0 ppb (49) 19.0 ppb (18) N/A 34.0 ppb (31) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 18.8 μg/m3 (64) 64.0