ID: 2009

AQSQID: 340410007

Site Name: Columbia

Added: April 21, 2020, 6:24 p.m.

Updated: June 2, 2020, 11:32 a.m.

Location: Knowlton (Delaware Rd), NJ

Reporting: True, Located: True

Current AQI: 64.0

Knowlton (Delaware Rd) NJ, US: 40.924606, -75.067825

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 2, 2020, 10 a.m. 67.0 ppb (64) 53.0 ppb (49) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 6.4 μg/m3 (27) 64.0
 
June 2, 2020, 9 a.m. 51.0 ppb (47) 36.0 ppb (33) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 6.7 μg/m3 (28) 47.0
 
June 2, 2020, 8 a.m. 41.0 ppb (38) 25.0 ppb (23) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) N/A N/A 8.4 μg/m3 (35) 38.0
 
June 2, 2020, 7 a.m. 21.0 ppb (19) 7.0 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 8.3 μg/m3 (35) 35.0
 
June 2, 2020, 6 a.m. 32.0 ppb (30) 12.0 ppb (11) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 8.2 μg/m3 (34) 34.0
 
June 2, 2020, 5 a.m. 43.0 ppb (40) 21.0 ppb (19) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 40.0
 
June 2, 2020, 4 a.m. 59.0 ppb (55) 35.0 ppb (32) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 5.0 μg/m3 (21) 55.0
 
June 2, 2020, 3 a.m. 60.0 ppb (56) 34.0 ppb (31) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 5.4 μg/m3 (23) 56.0
 
June 2, 2020, 2 a.m. 47.0 ppb (44) 20.0 ppb (19) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 7.3 μg/m3 (30) 44.0
 
June 2, 2020, 1 a.m. 43.0 ppb (40) 13.0 ppb (12) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 7.3 μg/m3 (30) 40.0
 
June 2, 2020, midnight 29.0 ppb (27) 6.0 ppb (6) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 4.4 μg/m3 (18) 27.0
 
June 1, 2020, 11 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
June 1, 2020, 10 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
June 1, 2020, 9 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
June 1, 2020, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
June 1, 2020, 7 p.m. 9.0 ppb (8) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 0.2 μg/m3 (1) 31.0
 
June 1, 2020, 6 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 0.9 μg/m3 (4) 31.0
 
June 1, 2020, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.7 μg/m3 (3) 32.0
 
June 1, 2020, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 1.3 μg/m3 (5) 30.0
 
June 1, 2020, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
June 1, 2020, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
June 1, 2020, 1 p.m. 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A N/A 26.0
 
June 1, 2020, noon 26.0 ppb (24) 14.0 ppb (13) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.7 μg/m3 (15) 24.0
 
June 1, 2020, 11 a.m. 57.0 ppb (53) 41.0 ppb (38) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 6.5 μg/m3 (27) 53.0
 
June 1, 2020, 10 a.m. 68.0 ppb (65) 48.0 ppb (44) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A 6.3 μg/m3 (26) 65.0
 
June 1, 2020, 9 a.m. 22.0 ppb (20) 8.0 ppb (7) N/A 14.0 ppb (13) N/A N/A 2.0 ppb (2) N/A N/A 7.3 μg/m3 (30) 30.0
 
June 1, 2020, 8 a.m. 51.0 ppb (47) 32.0 ppb (30) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) N/A N/A 8.5 μg/m3 (35) 47.0
 
June 1, 2020, 7 a.m. 47.0 ppb (44) 25.0 ppb (23) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 10.8 μg/m3 (45) 45.0
 
June 1, 2020, 6 a.m. 42.0 ppb (39) 19.0 ppb (18) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 6.3 μg/m3 (26) 39.0
 
June 1, 2020, 5 a.m. 26.0 ppb (24) 5.0 ppb (5) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A N/A 24.0
 
June 1, 2020, 4 a.m. 24.0 ppb (22) 3.0 ppb (3) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 4.9 μg/m3 (20) 22.0
 
June 1, 2020, 3 a.m. 23.0 ppb (21) 5.0 ppb (5) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 5.7 μg/m3 (24) 24.0
 
June 1, 2020, 2 a.m. 28.0 ppb (26) 8.0 ppb (7) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 6.5 μg/m3 (27) 27.0
 
June 1, 2020, 1 a.m. 22.0 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 6.1 μg/m3 (25) 25.0
 
June 1, 2020, midnight 23.0 ppb (21) 8.0 ppb (7) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 4.4 μg/m3 (18) 21.0
 
May 31, 2020, 11 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.7 μg/m3 (11) 25.0
 
May 31, 2020, 10 p.m. 9.0 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
May 31, 2020, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A N/A 28.0
 
May 31, 2020, 8 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
May 31, 2020, 7 p.m. 6.0 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.8 μg/m3 (3) 25.0
 
May 31, 2020, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
May 31, 2020, 5 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.5 μg/m3 (2) 25.0
 
May 31, 2020, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A -0.3 μg/m3 (0) 25.0
 
May 31, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A -2.9 μg/m3 (0) 25.0
 
May 31, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A -1.7 μg/m3 (0) 22.0
 
May 31, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A N/A 20.0
 
May 31, 2020, noon 2.0 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 1.6 μg/m3 (7) 18.0
 
May 31, 2020, 11 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.3 μg/m3 (14) 15.0
 
May 31, 2020, 10 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
May 31, 2020, 9 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 2.9 μg/m3 (12) 15.0
 
May 31, 2020, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 1.8 μg/m3 (8) 17.0
 
May 31, 2020, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 2.5 μg/m3 (10) 19.0
 
May 31, 2020, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 4.9 μg/m3 (20) 21.0
 
May 31, 2020, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A N/A 23.0
 
May 31, 2020, 4 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 9.9 μg/m3 (41) 41.0
 
May 31, 2020, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
May 31, 2020, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 6.8 μg/m3 (28) 28.0
 
May 31, 2020, 1 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
May 31, 2020, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 0.7 μg/m3 (3) 28.0
 
May 30, 2020, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A -0.7 μg/m3 (0) 34.0
 
May 30, 2020, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
May 30, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A N/A 35.0
 
May 30, 2020, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 4.6 μg/m3 (19) 36.0
 
May 30, 2020, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 5.3 μg/m3 (22) 35.0
 
May 30, 2020, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 6.7 μg/m3 (28) 36.0
 
May 30, 2020, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 6.1 μg/m3 (25) 32.0
 
May 30, 2020, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 6.5 μg/m3 (27) 32.0
 
May 30, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 5.2 μg/m3 (22) 30.0
 
May 30, 2020, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 5.5 μg/m3 (23) 30.0
 
May 30, 2020, 1 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A N/A 28.0
 
May 30, 2020, noon 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 5.7 μg/m3 (24) 25.0
 
May 30, 2020, 11 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.9 μg/m3 (20) 22.0
 
May 30, 2020, 10 a.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
May 30, 2020, 9 a.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 3.8 μg/m3 (16) 16.0
 
May 30, 2020, 8 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A 2.8 μg/m3 (12) 14.0
 
May 30, 2020, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 2.7 μg/m3 (11) 18.0
 
May 30, 2020, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 3.4 μg/m3 (14) 16.0
 
May 30, 2020, 5 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A N/A 17.0
 
May 30, 2020, 4 a.m. 11.0 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 3.7 μg/m3 (15) 17.0
 
May 30, 2020, 3 a.m. 18.0 ppb (17) 5.0 ppb (5) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A 3.3 μg/m3 (14) 17.0
 
May 30, 2020, 2 a.m. 25.0 ppb (23) 9.0 ppb (8) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 4.4 μg/m3 (18) 23.0
 
May 30, 2020, 1 a.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 4.4 μg/m3 (18) 18.0
 
May 30, 2020, midnight 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 29, 2020, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 29, 2020, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 9.7 μg/m3 (40) 40.0
 
May 29, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
May 29, 2020, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 5.6 μg/m3 (23) 25.0
 
May 29, 2020, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 5.2 μg/m3 (22) 23.0
 
May 29, 2020, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 5.2 μg/m3 (22) 23.0
 
May 29, 2020, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 4.8 μg/m3 (20) 21.0
 
May 29, 2020, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 4.7 μg/m3 (20) 20.0
 
May 29, 2020, 3 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.5 μg/m3 (15) 15.0
 
May 29, 2020, 2 p.m. 3.0 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 3.2 μg/m3 (13) 13.0
 
May 29, 2020, 1 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A N/A 11.0
 
May 29, 2020, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 3.9 μg/m3 (16) 16.0
 
May 29, 2020, 11 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 4.3 μg/m3 (18) 18.0
 
May 29, 2020, 10 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
May 29, 2020, 9 a.m. 5.0 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 29, 2020, 8 a.m. 8.0 ppb (7) 4.0 ppb (4) N/A 3.0 ppb (3) N/A N/A 8.0 ppb (6) N/A N/A 6.3 μg/m3 (26) 26.0
 
May 29, 2020, 7 a.m. 9.0 ppb (8) 5.0 ppb (5) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 8.6 μg/m3 (36) 36.0
 
May 29, 2020, 6 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 29, 2020, 5 a.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A N/A 7.0
 
May 29, 2020, 4 a.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 3.6 μg/m3 (15) 15.0
 
May 29, 2020, 3 a.m. 8.0 ppb (7) 4.0 ppb (4) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 4.1 μg/m3 (17) 17.0
 
May 29, 2020, 2 a.m. 13.0 ppb (12) 8.0 ppb (7) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 4.9 μg/m3 (20) 20.0
 
May 29, 2020, 1 a.m. 12.0 ppb (11) 6.0 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 4.1 μg/m3 (17) 17.0
 
May 29, 2020, midnight 18.0 ppb (17) 10.0 ppb (9) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 3.1 μg/m3 (13) 17.0
 
May 28, 2020, 11 p.m. 17.0 ppb (16) 11.0 ppb (10) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 3.4 μg/m3 (14) 16.0
 
May 28, 2020, 10 p.m. 22.0 ppb (20) 14.0 ppb (13) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 2.0 μg/m3 (8) 20.0
 
May 28, 2020, 9 p.m. 11.0 ppb (10) 7.0 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A N/A 10.0
 
May 28, 2020, 8 p.m. 17.0 ppb (16) 11.0 ppb (10) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 2.2 μg/m3 (9) 16.0
 
May 28, 2020, 7 p.m. 16.0 ppb (15) 11.0 ppb (10) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 1.7 μg/m3 (7) 15.0
 
May 28, 2020, 6 p.m. 12.0 ppb (11) 8.0 ppb (7) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 1.2 μg/m3 (5) 12.0
 
May 28, 2020, 5 p.m. 16.0 ppb (15) 11.0 ppb (10) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 3.7 μg/m3 (15) 15.0
 
May 28, 2020, 4 p.m. 15.0 ppb (14) 10.0 ppb (9) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 28, 2020, 3 p.m. 21.0 ppb (19) 16.0 ppb (15) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A 6.2 μg/m3 (26) 26.0
 
May 28, 2020, 2 p.m. 10.0 ppb (9) 7.0 ppb (6) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 2.7 μg/m3 (11) 11.0
 
May 28, 2020, 1 p.m. 13.0 ppb (12) 9.0 ppb (8) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A N/A 12.0
 
May 28, 2020, noon 14.0 ppb (13) 9.0 ppb (8) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 1.6 μg/m3 (7) 13.0
 
May 28, 2020, 11 a.m. 11.0 ppb (10) 6.0 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 1.4 μg/m3 (6) 10.0
 
May 28, 2020, 10 a.m. 15.0 ppb (14) 9.0 ppb (8) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 2.6 μg/m3 (11) 14.0
 
May 28, 2020, 9 a.m. 14.0 ppb (13) 7.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 2.0 μg/m3 (8) 13.0
 
May 28, 2020, 8 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (5) N/A N/A 1.1 μg/m3 (5) 7.0
 
May 28, 2020, 7 a.m. 17.0 ppb (16) 5.0 ppb (5) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.4 μg/m3 (2) 16.0
 
May 28, 2020, 6 a.m. 34.0 ppb (31) 19.0 ppb (18) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 2.0 μg/m3 (8) 31.0
 
May 28, 2020, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A N/A 12.0
 
May 28, 2020, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 3.4 μg/m3 (14) 14.0
 
May 28, 2020, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 3.3 μg/m3 (14) 15.0
 
May 28, 2020, 2 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 3.3 μg/m3 (14) 15.0
 
May 28, 2020, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 4.9 μg/m3 (20) 20.0
 
May 28, 2020, midnight 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 4.9 μg/m3 (20) 23.0
 
May 27, 2020, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 5.5 μg/m3 (23) 25.0
 
May 27, 2020, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 5.1 μg/m3 (21) 32.0
 
May 27, 2020, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A N/A 32.0
 
May 27, 2020, 8 p.m. 8.0 ppb (7) 4.0 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 4.5 μg/m3 (19) 28.0
 
May 27, 2020, 7 p.m. 5.0 ppb (5) 3.0 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 5.9 μg/m3 (25) 28.0
 
May 27, 2020, 6 p.m. 3.0 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
May 27, 2020, 5 p.m. 13.0 ppb (12) 8.0 ppb (7) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
May 27, 2020, 4 p.m. 15.0 ppb (14) 10.0 ppb (9) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.4 μg/m3 (23) 23.0
 
May 27, 2020, 3 p.m. 8.0 ppb (7) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
May 27, 2020, 2 p.m. 10.0 ppb (9) 6.0 ppb (6) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 3.5 μg/m3 (15) 15.0
 
May 27, 2020, 1 p.m. 7.0 ppb (6) 4.0 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A N/A 11.0
 
May 27, 2020, noon 10.0 ppb (9) 7.0 ppb (6) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A 3.8 μg/m3 (16) 16.0
 
May 27, 2020, 11 a.m. 47.0 ppb (44) 39.0 ppb (36) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A 5.2 μg/m3 (22) 44.0
 
May 27, 2020, 10 a.m. 100.0 ppb (99) 92.0 ppb (90) N/A 7.0 ppb (6) N/A 2.0 ppb (3) N/A N/A N/A 5.6 μg/m3 (23) 99.0
 
May 27, 2020, 9 a.m. 72.0 ppb (69) 63.0 ppb (60) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 6.2 μg/m3 (26) 69.0
 
May 27, 2020, 8 a.m. 58.0 ppb (54) 49.0 ppb (45) N/A 9.0 ppb (8) N/A N/A 0.0 ppb (0) N/A N/A 5.1 μg/m3 (21) 54.0
 
May 27, 2020, 7 a.m. 49.0 ppb (45) 38.0 ppb (35) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 4.2 μg/m3 (18) 45.0
 
May 27, 2020, 6 a.m. 33.0 ppb (31) 21.0 ppb (19) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 3.9 μg/m3 (16) 31.0
 
May 27, 2020, 5 a.m. 39.0 ppb (36) 24.0 ppb (22) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 36.0
 
May 27, 2020, 4 a.m. 24.0 ppb (22) 10.0 ppb (9) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 4.2 μg/m3 (18) 22.0
 
May 27, 2020, 3 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 12.0 ppb (9) N/A N/A 5.3 μg/m3 (22) 22.0
 
May 27, 2020, 2 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 6.5 μg/m3 (27) 27.0
 
May 27, 2020, 1 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 6.3 μg/m3 (26) 26.0
 
May 27, 2020, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 5.8 μg/m3 (24) 29.0
 
May 26, 2020, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 4.5 μg/m3 (19) 34.0
 
May 26, 2020, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 6.5 μg/m3 (27) 34.0
 
May 26, 2020, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A N/A 35.0
 
May 26, 2020, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 7.3 μg/m3 (30) 36.0
 
May 26, 2020, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 7.3 μg/m3 (30) 36.0
 
May 26, 2020, 6 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 49.0 ppb (38) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 26, 2020, 5 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) N/A N/A 12.6 μg/m3 (51) 51.0
 
May 26, 2020, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 13.3 μg/m3 (53) 53.0
 
May 26, 2020, 3 p.m. 10.0 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 12.6 μg/m3 (51) 51.0
 
May 26, 2020, 2 p.m. 14.0 ppb (13) 8.0 ppb (7) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 10.8 μg/m3 (45) 45.0
 
May 26, 2020, 1 p.m. 16.0 ppb (15) 9.0 ppb (8) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A N/A 15.0
 
May 26, 2020, noon 9.0 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 6.1 μg/m3 (25) 25.0
 
May 26, 2020, 11 a.m. 16.0 ppb (15) 9.0 ppb (8) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 7.7 μg/m3 (32) 32.0