AQSQID: 060595001

Site Name: La Habra

Location: La Habra, CA

Reporting: True, Located: True

Current AQI: 43.0

La Habra CA, US: 33.9258, -117.9506

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, midnight 9.3 ppb (9) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 56.0 ppb (43) 0.16 ppb (2) N/A N/A 43.0
 
March 18, 2019, 11 p.m. 8.5 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 60.0 ppb (46) 0.17 ppb (2) N/A N/A 46.0
 
March 18, 2019, 10 p.m. 7.5 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 66.0 ppb (51) 0.15 ppb (2) N/A N/A 51.0
 
March 18, 2019, 9 p.m. 7.0 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 69.0 ppb (53) 0.17 ppb (2) N/A N/A 53.0
 
March 18, 2019, 8 p.m. 8.3 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 68.0 ppb (52) 0.22 ppb (2) N/A N/A 52.0
 
March 18, 2019, 7 p.m. 22.1 ppb (20) 4.6 ppb (4) N/A 17.0 ppb (16) N/A N/A 48.0 ppb (37) 0.36 ppb (4) N/A N/A 37.0
 
March 18, 2019, 6 p.m. 22.5 ppb (21) 5.6 ppb (5) N/A 17.0 ppb (16) N/A N/A 37.0 ppb (28) 0.35 ppb (4) N/A N/A 28.0
 
March 18, 2019, 5 p.m. 18.6 ppb (17) 5.1 ppb (5) N/A 14.0 ppb (13) N/A N/A 31.0 ppb (24) 0.29 ppb (3) N/A N/A 24.0
 
March 18, 2019, 4 p.m. 27.3 ppb (25) 9.7 ppb (9) N/A 18.0 ppb (17) N/A N/A 20.0 ppb (15) 0.35 ppb (4) N/A N/A 25.0
 
March 18, 2019, 3 p.m. 60.7 ppb (57) 33.3 ppb (31) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 0.66 ppb (7) N/A N/A 57.0
 
March 18, 2019, 2 p.m. 89.5 ppb (88) 59.3 ppb (56) N/A 30.0 ppb (28) N/A N/A -2.0 ppb (0) 0.96 ppb (11) N/A N/A 88.0
 
March 18, 2019, 1 p.m. 73.7 ppb (71) 42.8 ppb (40) N/A 31.0 ppb (29) N/A N/A -2.0 ppb (0) 0.99 ppb (11) N/A N/A 71.0
 
March 18, 2019, noon 37.5 ppb (35) 10.2 ppb (9) N/A 27.0 ppb (25) N/A N/A 2.0 ppb (2) 0.4 ppb (4) N/A N/A 35.0
 
March 18, 2019, 11 a.m. 29.1 ppb (27) 4.2 ppb (4) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) 0.35 ppb (4) N/A N/A 27.0
 
March 18, 2019, 10 a.m. 9.6 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.17 ppb (2) N/A N/A 21.0
 
March 18, 2019, 9 a.m. 11.7 ppb (11) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.23 ppb (3) N/A N/A 18.0
 
March 18, 2019, 8 a.m. 8.7 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.17 ppb (2) N/A N/A 22.0
 
March 18, 2019, 7 a.m. 14.0 ppb (13) 1.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.27 ppb (3) N/A N/A 19.0
 
March 18, 2019, 6 a.m. 15.5 ppb (14) 1.4 ppb (1) N/A 14.0 ppb (13) N/A N/A 27.0 ppb (21) 0.29 ppb (3) N/A N/A 21.0
 
March 18, 2019, 5 a.m. 14.6 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (13) N/A N/A 37.0 ppb (28) 0.29 ppb (3) N/A N/A 28.0
 
March 18, 2019, 4 a.m. 18.5 ppb (17) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 33.0 ppb (25) 0.33 ppb (4) N/A N/A 25.0
 
March 18, 2019, 3 a.m. 15.7 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (14) N/A N/A 35.0 ppb (27) 0.26 ppb (3) N/A N/A 27.0
 
March 18, 2019, 2 a.m. 16.0 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A N/A 37.0 ppb (28) 0.21 ppb (2) N/A N/A 28.0
 
March 18, 2019, 1 a.m. 8.6 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 54.0 ppb (42) 0.17 ppb (2) N/A N/A 42.0
 
March 18, 2019, midnight 8.0 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 62.0 ppb (48) 0.19 ppb (2) N/A N/A 48.0
 
March 17, 2019, 11 p.m. 5.0 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (49) 0.15 ppb (2) N/A N/A 49.0
 
March 17, 2019, 10 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (45) 0.09 ppb (1) N/A N/A 45.0
 
March 17, 2019, 9 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) 0.1 ppb (1) N/A N/A 42.0
 
March 17, 2019, 8 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.09 ppb (1) N/A N/A 42.0
 
March 17, 2019, 7 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.1 ppb (1) N/A N/A 40.0
 
March 17, 2019, 6 p.m. 6.3 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) 0.15 ppb (2) N/A N/A 35.0
 
March 17, 2019, 5 p.m. 8.3 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.16 ppb (2) N/A N/A 30.0
 
March 17, 2019, 4 p.m. 11.2 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.19 ppb (2) N/A N/A 25.0
 
March 17, 2019, 3 p.m. 26.2 ppb (24) 8.6 ppb (8) N/A 18.0 ppb (17) N/A N/A 17.0 ppb (13) 0.35 ppb (4) N/A N/A 24.0
 
March 17, 2019, 2 p.m. 28.5 ppb (26) 7.2 ppb (7) N/A 21.0 ppb (19) N/A N/A 10.0 ppb (8) 0.33 ppb (4) N/A N/A 26.0
 
March 17, 2019, 1 p.m. 13.7 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) 0.21 ppb (2) N/A N/A 15.0
 
March 17, 2019, noon 28.5 ppb (26) 7.4 ppb (7) N/A 21.0 ppb (19) N/A N/A 3.0 ppb (2) 0.32 ppb (4) N/A N/A 26.0
 
March 17, 2019, 11 a.m. 26.2 ppb (24) 4.9 ppb (5) N/A 21.0 ppb (19) N/A N/A -1.0 ppb (0) 0.35 ppb (4) N/A N/A 24.0
 
March 17, 2019, 10 a.m. 28.0 ppb (26) 5.9 ppb (5) N/A 22.0 ppb (20) N/A N/A -1.0 ppb (0) 0.39 ppb (4) N/A N/A 26.0
 
March 17, 2019, 9 a.m. 32.2 ppb (30) 9.4 ppb (9) N/A 23.0 ppb (21) N/A N/A -1.0 ppb (0) 0.5 ppb (6) N/A N/A 30.0
 
March 17, 2019, 8 a.m. 34.9 ppb (32) 9.6 ppb (9) N/A 25.0 ppb (23) N/A N/A -1.0 ppb (0) 0.46 ppb (5) N/A N/A 32.0
 
March 17, 2019, 7 a.m. 32.0 ppb (30) 4.6 ppb (4) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 0.43 ppb (5) N/A N/A 30.0
 
March 17, 2019, 6 a.m. 34.1 ppb (32) 4.2 ppb (4) N/A 30.0 ppb (28) N/A N/A 2.0 ppb (2) 0.51 ppb (6) N/A N/A 32.0
 
March 17, 2019, 5 a.m. 29.5 ppb (27) 2.6 ppb (2) N/A 27.0 ppb (25) N/A N/A 9.0 ppb (7) 0.52 ppb (6) N/A N/A 27.0
 
March 17, 2019, 4 a.m. 24.4 ppb (23) 1.5 ppb (1) N/A 23.0 ppb (21) N/A N/A 19.0 ppb (15) 0.39 ppb (4) N/A N/A 23.0
 
March 17, 2019, 3 a.m. 18.9 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 29.0 ppb (22) 0.35 ppb (4) N/A N/A 22.0
 
March 17, 2019, 2 a.m. 11.4 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 45.0 ppb (35) 0.18 ppb (2) N/A N/A 35.0
 
March 17, 2019, 1 a.m. 6.9 ppb (6) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 62.0 ppb (48) 0.16 ppb (2) N/A N/A 48.0
 
March 17, 2019, midnight 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) 0.11 ppb (1) N/A N/A 42.0
 
March 16, 2019, 11 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) 0.2 ppb (2) N/A N/A 42.0
 
March 16, 2019, 10 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) 0.17 ppb (2) N/A N/A 42.0
 
March 16, 2019, 9 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (42) 0.16 ppb (2) N/A N/A 42.0
 
March 16, 2019, 8 p.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.08 ppb (1) N/A N/A 42.0
 
March 16, 2019, 7 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.08 ppb (1) N/A N/A 40.0
 
March 16, 2019, 6 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.1 ppb (1) N/A N/A 38.0
 
March 16, 2019, 5 p.m. 6.8 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.14 ppb (2) N/A N/A 34.0
 
March 16, 2019, 4 p.m. 23.6 ppb (22) 7.7 ppb (7) N/A 16.0 ppb (15) N/A N/A 26.0 ppb (20) 0.34 ppb (4) N/A N/A 22.0
 
March 16, 2019, 3 p.m. 59.5 ppb (56) 31.9 ppb (30) N/A 28.0 ppb (26) N/A N/A 4.0 ppb (3) 0.88 ppb (10) N/A N/A 56.0
 
March 16, 2019, 2 p.m. 68.7 ppb (66) 42.7 ppb (40) N/A 26.0 ppb (24) N/A N/A -1.0 ppb (0) 0.74 ppb (8) N/A N/A 66.0
 
March 16, 2019, 1 p.m. 36.9 ppb (34) 13.4 ppb (12) N/A 24.0 ppb (22) N/A N/A -2.0 ppb (0) 0.43 ppb (5) N/A N/A 34.0
 
March 16, 2019, noon 30.1 ppb (28) 7.9 ppb (7) N/A 22.0 ppb (20) N/A N/A -1.0 ppb (0) 0.36 ppb (4) N/A N/A 28.0
 
March 16, 2019, 11 a.m. 21.7 ppb (20) 2.4 ppb (2) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (2) 0.26 ppb (3) N/A N/A 20.0
 
March 16, 2019, 10 a.m. 21.1 ppb (20) 2.6 ppb (2) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (4) 0.24 ppb (3) N/A N/A 20.0
 
March 16, 2019, 9 a.m. 22.3 ppb (21) 2.4 ppb (2) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (5) 0.26 ppb (3) N/A N/A 21.0
 
March 16, 2019, 8 a.m. 23.8 ppb (22) 2.3 ppb (2) N/A 21.0 ppb (19) N/A N/A 8.0 ppb (6) 0.26 ppb (3) N/A N/A 22.0
 
March 16, 2019, 7 a.m. 19.2 ppb (18) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A 15.0 ppb (12) 0.26 ppb (3) N/A N/A 18.0
 
March 16, 2019, 6 a.m. 19.5 ppb (18) 1.2 ppb (1) N/A 18.0 ppb (17) N/A N/A 16.0 ppb (12) 0.28 ppb (3) N/A N/A 18.0
 
March 16, 2019, 5 a.m. 29.1 ppb (27) 3.0 ppb (3) N/A 26.0 ppb (24) N/A N/A 6.0 ppb (5) 0.41 ppb (5) N/A N/A 27.0
 
March 16, 2019, 4 a.m. 21.8 ppb (20) 0.9 ppb (1) N/A 21.0 ppb (19) N/A N/A 16.0 ppb (12) 0.35 ppb (4) N/A N/A 20.0
 
March 16, 2019, 3 a.m. 17.3 ppb (16) 1.1 ppb (1) N/A 16.0 ppb (15) N/A N/A 27.0 ppb (21) 0.27 ppb (3) N/A N/A 21.0
 
March 16, 2019, 2 a.m. 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (32) 0.13 ppb (1) N/A N/A 32.0
 
March 16, 2019, 1 a.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.11 ppb (1) N/A N/A 35.0
 
March 16, 2019, midnight 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.09 ppb (1) N/A N/A 37.0
 
March 15, 2019, 11 p.m. 5.0 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) 0.1 ppb (1) N/A N/A 38.0
 
March 15, 2019, 10 p.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (39) 0.11 ppb (1) N/A N/A 39.0
 
March 15, 2019, 9 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) 0.1 ppb (1) N/A N/A 39.0
 
March 15, 2019, 8 p.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) 0.11 ppb (1) N/A N/A 38.0
 
March 15, 2019, 7 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) 0.11 ppb (1) N/A N/A 38.0
 
March 15, 2019, 6 p.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.11 ppb (1) N/A N/A 37.0
 
March 15, 2019, 5 p.m. 4.4 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.13 ppb (1) N/A N/A 35.0
 
March 15, 2019, 4 p.m. 40.3 ppb (37) 16.6 ppb (15) N/A 24.0 ppb (22) N/A N/A 20.0 ppb (15) 0.51 ppb (6) N/A N/A 37.0
 
March 15, 2019, 3 p.m. 98.5 ppb (97) 59.6 ppb (56) N/A 35.0 ppb (32) N/A N/A 2.0 ppb (2) 1.07 ppb (12) N/A N/A 97.0
 
March 15, 2019, 2 p.m. 90.2 ppb (89) 56.2 ppb (52) N/A 34.0 ppb (31) N/A N/A -1.0 ppb (0) 1.17 ppb (13) N/A N/A 89.0
 
March 15, 2019, 1 p.m. 57.4 ppb (54) 24.1 ppb (22) N/A 33.0 ppb (31) N/A N/A -2.0 ppb (0) 0.84 ppb (9) N/A N/A 54.0
 
March 15, 2019, noon 44.7 ppb (41) 13.1 ppb (12) N/A 32.0 ppb (30) N/A N/A -1.0 ppb (0) 0.48 ppb (5) N/A N/A 41.0
 
March 15, 2019, 11 a.m. 30.5 ppb (28) 5.7 ppb (5) N/A 25.0 ppb (23) N/A N/A 4.0 ppb (3) 0.3 ppb (3) N/A N/A 28.0
 
March 15, 2019, 10 a.m. 29.2 ppb (27) 3.5 ppb (3) N/A 26.0 ppb (24) N/A N/A 5.0 ppb (4) 0.3 ppb (3) N/A N/A 27.0
 
March 15, 2019, 9 a.m. 23.1 ppb (21) 1.4 ppb (1) N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) 0.28 ppb (3) N/A N/A 21.0
 
March 15, 2019, 8 a.m. 23.6 ppb (22) 1.1 ppb (1) N/A 23.0 ppb (21) N/A N/A 14.0 ppb (11) 0.22 ppb (2) N/A N/A 22.0
 
March 15, 2019, 7 a.m. 21.8 ppb (20) 1.7 ppb (2) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (8) 0.28 ppb (3) N/A N/A 20.0
 
March 15, 2019, 6 a.m. 28.1 ppb (26) 2.9 ppb (3) N/A 25.0 ppb (23) N/A N/A 9.0 ppb (7) 0.31 ppb (3) N/A N/A 26.0
 
March 15, 2019, 5 a.m. 21.9 ppb (20) 1.2 ppb (1) N/A 21.0 ppb (19) N/A N/A 15.0 ppb (12) 0.34 ppb (4) N/A N/A 20.0
 
March 15, 2019, 4 a.m. 27.8 ppb (26) 2.4 ppb (2) N/A 25.0 ppb (23) N/A N/A 12.0 ppb (9) 0.41 ppb (5) N/A N/A 26.0
 
March 15, 2019, 3 a.m. 23.1 ppb (21) 1.4 ppb (1) N/A 22.0 ppb (20) N/A N/A 20.0 ppb (15) 0.46 ppb (5) N/A N/A 21.0
 
March 15, 2019, 2 a.m. 15.9 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 34.0 ppb (26) 0.25 ppb (3) N/A N/A 26.0
 
March 15, 2019, 1 a.m. 13.5 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 44.0 ppb (34) 0.21 ppb (2) N/A N/A 34.0
 
March 15, 2019, midnight 9.3 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 49.0 ppb (38) 0.16 ppb (2) N/A N/A 38.0
 
March 14, 2019, 11 p.m. 6.7 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.15 ppb (2) N/A N/A 38.0
 
March 14, 2019, 10 p.m. 6.2 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.15 ppb (2) N/A N/A 38.0
 
March 14, 2019, 9 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) 0.13 ppb (1) N/A N/A 40.0
 
March 14, 2019, 8 p.m. 5.5 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (38) 0.12 ppb (1) N/A N/A 38.0
 
March 14, 2019, 7 p.m. 8.7 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) 0.14 ppb (2) N/A N/A 35.0
 
March 14, 2019, 6 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.14 ppb (2) N/A N/A 32.0
 
March 14, 2019, 5 p.m. 7.3 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) 0.17 ppb (2) N/A N/A 32.0
 
March 14, 2019, 4 p.m. 8.3 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) 0.15 ppb (2) N/A N/A 31.0
 
March 14, 2019, 3 p.m. 21.3 ppb (20) 4.9 ppb (5) N/A 16.0 ppb (15) N/A N/A 28.0 ppb (22) 0.32 ppb (4) N/A N/A 22.0
 
March 14, 2019, 2 p.m. 41.1 ppb (38) 11.9 ppb (11) N/A 29.0 ppb (27) N/A N/A 12.0 ppb (9) 0.6 ppb (7) N/A N/A 38.0
 
March 14, 2019, 1 p.m. 28.8 ppb (27) 5.5 ppb (5) N/A 23.0 ppb (21) N/A N/A 16.0 ppb (12) 0.6 ppb (7) N/A N/A 27.0
 
March 14, 2019, noon 20.8 ppb (19) 2.6 ppb (2) N/A 18.0 ppb (17) N/A N/A 18.0 ppb (14) 0.29 ppb (3) N/A N/A 19.0
 
March 14, 2019, 11 a.m. 16.5 ppb (15) 3.1 ppb (3) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.17 ppb (2) N/A N/A 16.0
 
March 14, 2019, 10 a.m. 6.1 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.1 ppb (1) N/A N/A 25.0
 
March 14, 2019, 9 a.m. 17.4 ppb (16) 2.8 ppb (3) N/A 15.0 ppb (14) N/A N/A 8.0 ppb (6) 0.26 ppb (3) N/A N/A 16.0
 
March 14, 2019, 8 a.m. 17.9 ppb (17) 2.1 ppb (2) N/A 16.0 ppb (15) N/A N/A 6.0 ppb (5) 0.2 ppb (2) N/A N/A 17.0
 
March 14, 2019, 7 a.m. 16.6 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) 0.26 ppb (3) N/A N/A 15.0
 
March 14, 2019, 6 a.m. 16.8 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 0.28 ppb (3) N/A N/A 16.0
 
March 14, 2019, 5 a.m. 18.4 ppb (17) 1.9 ppb (2) N/A 17.0 ppb (16) N/A N/A 19.0 ppb (15) 0.27 ppb (3) N/A N/A 17.0
 
March 14, 2019, 4 a.m. 16.5 ppb (15) 0.9 ppb (1) N/A 16.0 ppb (15) N/A N/A 26.0 ppb (20) 0.26 ppb (3) N/A N/A 20.0
 
March 14, 2019, 3 a.m. 13.8 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) 0.22 ppb (2) N/A N/A 24.0
 
March 14, 2019, 2 a.m. 12.6 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 34.0 ppb (26) 0.2 ppb (2) N/A N/A 26.0
 
March 14, 2019, 1 a.m. 10.2 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 42.0 ppb (32) 0.16 ppb (2) N/A N/A 32.0
 
March 14, 2019, midnight 9.6 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 47.0 ppb (36) 0.15 ppb (2) N/A N/A 36.0
 
March 13, 2019, 11 p.m. 8.0 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (37) 0.14 ppb (2) N/A N/A 37.0
 
March 13, 2019, 10 p.m. 6.1 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) 0.14 ppb (2) N/A N/A 39.0
 
March 13, 2019, 9 p.m. 6.7 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) 0.16 ppb (2) N/A N/A 37.0
 
March 13, 2019, 8 p.m. 5.7 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) 0.15 ppb (2) N/A N/A 35.0
 
March 13, 2019, 7 p.m. 7.5 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
March 13, 2019, 6 p.m. 7.6 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.16 ppb (2) N/A N/A 28.0
 
March 13, 2019, 5 p.m. 10.3 ppb (10) 3.4 ppb (3) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) 0.19 ppb (2) N/A N/A 25.0
 
March 13, 2019, 4 p.m. 11.4 ppb (11) 3.9 ppb (4) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.14 ppb (2) N/A N/A 22.0
 
March 13, 2019, 3 p.m. 35.2 ppb (33) 15.7 ppb (15) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (7) 0.58 ppb (6) N/A N/A 33.0
 
March 13, 2019, 2 p.m. 59.4 ppb (56) 32.4 ppb (30) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 0.79 ppb (9) N/A N/A 56.0
 
March 13, 2019, 1 p.m. 28.7 ppb (27) 7.4 ppb (7) N/A 21.0 ppb (19) N/A N/A 4.0 ppb (3) 1.02 ppb (11) N/A N/A 27.0
 
March 13, 2019, noon 13.7 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.23 ppb (3) N/A N/A 14.0
 
March 13, 2019, 11 a.m. 6.6 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) 0.12 ppb (1) N/A N/A 22.0
 
March 13, 2019, 10 a.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.05 ppb (1) N/A N/A 25.0
 
March 13, 2019, 9 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.08 ppb (1) N/A N/A 28.0
 
March 13, 2019, 8 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.05 ppb (1) N/A N/A 29.0
 
March 13, 2019, 7 a.m. 5.4 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.09 ppb (1) N/A N/A 25.0
 
March 13, 2019, 5 a.m. 4.3 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.11 ppb (1) N/A N/A 24.0
 
March 13, 2019, 4 a.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A N/A 26.0
 
March 13, 2019, 3 a.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.09 ppb (1) N/A N/A 28.0
 
March 13, 2019, 2 a.m. 5.4 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A N/A 26.0
 
March 13, 2019, 1 a.m. 6.4 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.12 ppb (1) N/A N/A 25.0
 
March 13, 2019, midnight 6.7 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.11 ppb (1) N/A N/A 28.0
 
March 12, 2019, 11 p.m. 5.7 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.11 ppb (1) N/A N/A 32.0
 
March 12, 2019, 10 p.m. 5.8 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.12 ppb (1) N/A N/A 34.0
 
March 12, 2019, 9 p.m. 7.3 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (35) 0.14 ppb (2) N/A N/A 35.0
 
March 12, 2019, 8 p.m. 10.1 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) 0.17 ppb (2) N/A N/A 32.0
 
March 12, 2019, 7 p.m. 11.2 ppb (10) 3.4 ppb (3) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.17 ppb (2) N/A N/A 28.0
 
March 12, 2019, 6 p.m. 13.9 ppb (13) 4.5 ppb (4) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) 0.21 ppb (2) N/A N/A 24.0
 
March 12, 2019, 5 p.m. 14.1 ppb (13) 4.8 ppb (4) N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) 0.21 ppb (2) N/A N/A 22.0
 
March 12, 2019, 4 p.m. 14.6 ppb (14) 5.4 ppb (5) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.21 ppb (2) N/A N/A 18.0
 
March 12, 2019, 3 p.m. 32.2 ppb (30) 15.4 ppb (14) N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) 0.47 ppb (5) N/A N/A 30.0
 
March 12, 2019, 2 p.m. 40.4 ppb (37) 17.9 ppb (17) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.61 ppb (7) N/A N/A 37.0
 
March 12, 2019, 1 p.m. 26.4 ppb (24) 4.8 ppb (4) N/A 22.0 ppb (20) N/A N/A 3.0 ppb (2) 0.38 ppb (4) N/A N/A 24.0
 
March 12, 2019, noon 14.3 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) 0.18 ppb (2) N/A N/A 13.0
 
March 12, 2019, 11 a.m. 15.9 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) 0.16 ppb (2) N/A N/A 15.0
 
March 12, 2019, 10 a.m. 13.8 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) 0.14 ppb (2) N/A N/A 13.0
 
March 12, 2019, 9 a.m. 21.7 ppb (20) 4.1 ppb (4) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (9) 0.22 ppb (2) N/A N/A 20.0
 
March 12, 2019, 8 a.m. 16.1 ppb (15) 1.6 ppb (1) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) 0.2 ppb (2) N/A N/A 15.0
 
March 12, 2019, 7 a.m. 16.8 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.2 ppb (2) N/A N/A 16.0
 
March 12, 2019, 6 a.m. 12.9 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) 0.18 ppb (2) N/A N/A 15.0
 
March 12, 2019, 5 a.m. 15.3 ppb (14) 1.5 ppb (1) N/A 14.0 ppb (13) N/A N/A 22.0 ppb (17) 0.2 ppb (2) N/A N/A 17.0
 
March 12, 2019, 4 a.m. 17.9 ppb (17) 1.7 ppb (2) N/A 16.0 ppb (15) N/A N/A 20.0 ppb (15) 0.25 ppb (3) N/A N/A 17.0
 
March 12, 2019, 3 a.m. 10.7 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) 0.16 ppb (2) N/A N/A 24.0
 
March 12, 2019, 2 a.m. 12.6 ppb (12) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 33.0 ppb (25) 0.15 ppb (2) N/A N/A 25.0
 
March 12, 2019, 1 a.m. 10.2 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) 0.17 ppb (2) N/A N/A 27.0
 
March 12, 2019, midnight 6.2 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) 0.12 ppb (1) N/A N/A 32.0