Air Lookout Data Browser: Look Rock

ID: 755

AQSQID: 470090101

Site Name: Look Rock - Gsmnp

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

Updated: Jan. 20, 2021, 10:31 p.m.

Location: Maryville (Look Rock Tower), TN

Reporting: True, Located: True

Current AQI: 37.0

Maryville (Look Rock Tower) TN, US: 35.6322, -83.9422

Date Observed (UTC)	NOX	NO	NOY	NO2	NO2Y	SO2	OZONE	CO	PM10	PM2.5	AQI
Jan. 20, 2021, 9 p.m.	N/A	0.0 ppb (0)	2.2 ppb (3)	N/A	2.2 ppb (3)	N/A	39.0 ppb (37)	0.12 ppb (2)	N/A	6.0 μg/m³ (25)	37.0
Jan. 20, 2021, 8 p.m.	N/A	0.0 ppb (0)	2.4 ppb (3)	N/A	2.3 ppb (3)	N/A	39.0 ppb (37)	0.12 ppb (2)	N/A	3.0 μg/m³ (13)	37.0
Jan. 20, 2021, 7 p.m.	N/A	0.1 ppb (1)	2.7 ppb (3)	N/A	2.5 ppb (3)	N/A	38.0 ppb (36)	0.13 ppb (2)	N/A	2.0 μg/m³ (9)	36.0
Jan. 20, 2021, 6 p.m.	N/A	0.2 ppb (1)	2.8 ppb (3)	N/A	2.6 ppb (3)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	3.0 μg/m³ (13)	35.0
Jan. 20, 2021, 5 p.m.	N/A	0.2 ppb (1)	2.7 ppb (3)	N/A	2.4 ppb (3)	N/A	35.0 ppb (33)	0.13 ppb (2)	N/A	0.0 μg/m³ (0)	33.0
Jan. 20, 2021, 4 p.m.	N/A	0.1 ppb (1)	2.3 ppb (3)	N/A	2.1 ppb (2)	N/A	35.0 ppb (33)	0.13 ppb (2)	N/A	2.0 μg/m³ (9)	33.0
Jan. 20, 2021, 3 p.m.	N/A	0.1 ppb (1)	2.2 ppb (3)	N/A	2.1 ppb (2)	N/A	34.0 ppb (32)	0.12 ppb (2)	N/A	2.0 μg/m³ (9)	32.0
Jan. 20, 2021, 2 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	2.0 ppb (2)	N/A	33.0 ppb (31)	0.12 ppb (2)	N/A	2.0 μg/m³ (9)	31.0
Jan. 20, 2021, 1 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	33.0 ppb (31)	0.12 ppb (2)	N/A	5.0 μg/m³ (21)	31.0
Jan. 20, 2021, noon	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	33.0 ppb (31)	0.11 ppb (2)	N/A	3.0 μg/m³ (13)	31.0
Jan. 20, 2021, 11 a.m.	N/A	0.0 ppb (0)	2.1 ppb (2)	N/A	2.1 ppb (2)	N/A	33.0 ppb (31)	0.13 ppb (2)	N/A	3.0 μg/m³ (13)	31.0
Jan. 20, 2021, 10 a.m.	N/A	0.0 ppb (0)	2.5 ppb (3)	N/A	2.5 ppb (3)	N/A	32.0 ppb (30)	0.14 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 20, 2021, 9 a.m.	N/A	0.0 ppb (0)	2.7 ppb (3)	N/A	2.7 ppb (3)	N/A	33.0 ppb (31)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	31.0
Jan. 20, 2021, 8 a.m.	N/A	0.0 ppb (0)	3.7 ppb (4)	N/A	3.7 ppb (4)	N/A	34.0 ppb (32)	0.15 ppb (2)	N/A	6.0 μg/m³ (25)	32.0
Jan. 20, 2021, 7 a.m.	N/A	0.0 ppb (0)	3.7 ppb (4)	N/A	3.7 ppb (4)	N/A	36.0 ppb (34)	0.16 ppb (3)	N/A	11.0 μg/m³ (46)	46.0
Jan. 20, 2021, 6 a.m.	N/A	0.0 ppb (0)	3.3 ppb (4)	N/A	3.4 ppb (4)	N/A	39.0 ppb (37)	0.15 ppb (2)	N/A	9.0 μg/m³ (38)	38.0
Jan. 20, 2021, 5 a.m.	N/A	0.0 ppb (0)	3.4 ppb (4)	N/A	3.4 ppb (4)	N/A	41.0 ppb (38)	0.16 ppb (3)	N/A	8.0 μg/m³ (34)	38.0
Jan. 20, 2021, 4 a.m.	N/A	0.0 ppb (0)	3.4 ppb (4)	N/A	3.4 ppb (4)	N/A	42.0 ppb (39)	0.15 ppb (2)	N/A	8.0 μg/m³ (34)	39.0
Jan. 20, 2021, 3 a.m.	N/A	0.0 ppb (0)	3.2 ppb (4)	N/A	3.2 ppb (4)	N/A	41.0 ppb (38)	0.15 ppb (2)	N/A	12.0 μg/m³ (50)	50.0
Jan. 20, 2021, 2 a.m.	N/A	0.0 ppb (0)	3.0 ppb (3)	N/A	3.0 ppb (3)	N/A	42.0 ppb (39)	0.15 ppb (2)	N/A	10.0 μg/m³ (42)	42.0
Jan. 20, 2021, 1 a.m.	N/A	0.0 ppb (0)	3.0 ppb (3)	N/A	3.0 ppb (3)	N/A	43.0 ppb (40)	0.15 ppb (2)	N/A	8.0 μg/m³ (34)	40.0
Jan. 20, 2021, midnight	N/A	0.0 ppb (0)	2.9 ppb (3)	N/A	3.0 ppb (3)	N/A	44.0 ppb (41)	0.15 ppb (2)	N/A	9.0 μg/m³ (38)	41.0
Jan. 19, 2021, 11 p.m.	N/A	0.0 ppb (0)	3.0 ppb (3)	N/A	3.0 ppb (3)	N/A	43.0 ppb (40)	0.15 ppb (2)	N/A	9.0 μg/m³ (38)	40.0
Jan. 19, 2021, 10 p.m.	N/A	0.0 ppb (0)	3.1 ppb (3)	N/A	3.1 ppb (3)	N/A	43.0 ppb (40)	0.15 ppb (2)	N/A	9.0 μg/m³ (38)	40.0
Jan. 19, 2021, 9 p.m.	N/A	0.1 ppb (1)	3.2 ppb (4)	N/A	3.1 ppb (3)	N/A	42.0 ppb (39)	0.14 ppb (2)	N/A	9.0 μg/m³ (38)	39.0
Jan. 19, 2021, 8 p.m.	N/A	0.8 ppb (1)	3.9 ppb (4)	N/A	3.0 ppb (3)	N/A	41.0 ppb (38)	0.15 ppb (2)	N/A	9.0 μg/m³ (38)	38.0
Jan. 19, 2021, 7 p.m.	N/A	0.5 ppb (1)	3.2 ppb (4)	N/A	2.7 ppb (3)	N/A	41.0 ppb (38)	0.15 ppb (2)	N/A	7.0 μg/m³ (30)	38.0
Jan. 19, 2021, 6 p.m.	N/A	0.8 ppb (1)	3.7 ppb (4)	N/A	2.8 ppb (3)	N/A	40.0 ppb (38)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	38.0
Jan. 19, 2021, 5 p.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	39.0 ppb (37)	0.14 ppb (2)	N/A	1.0 μg/m³ (5)	37.0
Jan. 19, 2021, 4 p.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	38.0 ppb (36)	0.14 ppb (2)	N/A	2.0 μg/m³ (9)	36.0
Jan. 19, 2021, 3 p.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	35.0
Jan. 19, 2021, 2 p.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	37.0 ppb (35)	0.16 ppb (3)	N/A	8.0 μg/m³ (34)	35.0
Jan. 19, 2021, 1 p.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	38.0 ppb (36)	0.15 ppb (2)	N/A	3.0 μg/m³ (13)	36.0
Jan. 19, 2021, noon	N/A	0.0 ppb (0)	1.1 ppb (2)	N/A	1.1 ppb (2)	N/A	37.0 ppb (35)	0.14 ppb (2)	N/A	6.0 μg/m³ (25)	35.0
Jan. 19, 2021, 11 a.m.	N/A	0.0 ppb (0)	1.0 ppb (1)	N/A	1.0 ppb (1)	N/A	38.0 ppb (36)	0.14 ppb (2)	N/A	5.0 μg/m³ (21)	36.0
Jan. 19, 2021, 10 a.m.	N/A	0.0 ppb (0)	1.2 ppb (2)	N/A	1.2 ppb (2)	N/A	37.0 ppb (35)	0.14 ppb (2)	N/A	5.0 μg/m³ (21)	35.0
Jan. 19, 2021, 9 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	37.0 ppb (35)	0.14 ppb (2)	N/A	4.0 μg/m³ (17)	35.0
Jan. 19, 2021, 8 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	35.0
Jan. 19, 2021, 7 a.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	35.0
Jan. 19, 2021, 6 a.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	37.0 ppb (35)	0.12 ppb (2)	N/A	4.0 μg/m³ (17)	35.0
Jan. 19, 2021, 5 a.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	36.0 ppb (34)	0.13 ppb (2)	N/A	3.0 μg/m³ (13)	34.0
Jan. 19, 2021, 4 a.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	2.0 μg/m³ (9)	35.0
Jan. 19, 2021, 3 a.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	38.0 ppb (36)	0.13 ppb (2)	N/A	3.0 μg/m³ (13)	36.0
Jan. 19, 2021, 2 a.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	38.0 ppb (36)	0.12 ppb (2)	N/A	6.0 μg/m³ (25)	36.0
Jan. 19, 2021, 1 a.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	38.0 ppb (36)	0.12 ppb (2)	N/A	3.0 μg/m³ (13)	36.0
Jan. 19, 2021, midnight	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	37.0 ppb (35)	0.12 ppb (2)	N/A	5.0 μg/m³ (21)	35.0
Jan. 18, 2021, 11 p.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	37.0 ppb (35)	0.12 ppb (2)	N/A	7.0 μg/m³ (30)	35.0
Jan. 18, 2021, 10 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	1.9 ppb (2)	N/A	35.0 ppb (33)	0.12 ppb (2)	N/A	7.0 μg/m³ (30)	33.0
Jan. 18, 2021, 9 p.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	34.0 ppb (32)	0.12 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 18, 2021, 8 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	1.9 ppb (2)	N/A	34.0 ppb (32)	0.12 ppb (2)	N/A	7.0 μg/m³ (30)	32.0
Jan. 18, 2021, 7 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	1.9 ppb (2)	N/A	34.0 ppb (32)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	32.0
Jan. 18, 2021, 6 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	1.9 ppb (2)	N/A	34.0 ppb (32)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	32.0
Jan. 18, 2021, 5 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.8 ppb (2)	N/A	34.0 ppb (32)	0.13 ppb (2)	N/A	2.0 μg/m³ (9)	32.0
Jan. 18, 2021, 4 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.8 ppb (2)	N/A	34.0 ppb (32)	0.13 ppb (2)	N/A	2.0 μg/m³ (9)	32.0
Jan. 18, 2021, 3 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	33.0 ppb (31)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	31.0
Jan. 18, 2021, 2 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.8 ppb (2)	N/A	32.0 ppb (30)	0.13 ppb (2)	N/A	9.0 μg/m³ (38)	38.0
Jan. 18, 2021, 1 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	33.0 ppb (31)	0.13 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 18, 2021, noon	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	34.0 ppb (32)	0.12 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 18, 2021, 11 a.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	35.0 ppb (33)	0.13 ppb (2)	N/A	7.0 μg/m³ (30)	33.0
Jan. 18, 2021, 10 a.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	35.0 ppb (33)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	33.0
Jan. 18, 2021, 9 a.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	35.0 ppb (33)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	33.0
Jan. 18, 2021, 8 a.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	36.0 ppb (34)	0.13 ppb (2)	N/A	3.0 μg/m³ (13)	34.0
Jan. 18, 2021, 7 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	35.0
Jan. 18, 2021, 6 a.m.	N/A	0.0 ppb (0)	1.2 ppb (2)	N/A	1.3 ppb (2)	N/A	37.0 ppb (35)	0.12 ppb (2)	N/A	3.0 μg/m³ (13)	35.0
Jan. 18, 2021, 5 a.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	36.0 ppb (34)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	34.0
Jan. 18, 2021, 4 a.m.	N/A	N/A	N/A	N/A	N/A	N/A	34.0 ppb (32)	N/A	N/A	6.0 μg/m³ (25)	32.0
Jan. 18, 2021, 3 a.m.	N/A	0.0 ppb (0)	2.1 ppb (2)	N/A	2.1 ppb (2)	N/A	34.0 ppb (32)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	32.0
Jan. 18, 2021, 2 a.m.	N/A	0.0 ppb (0)	2.3 ppb (3)	N/A	2.3 ppb (3)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	35.0
Jan. 18, 2021, 1 a.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	2.1 ppb (2)	N/A	35.0 ppb (33)	0.14 ppb (2)	N/A	6.0 μg/m³ (25)	33.0
Jan. 18, 2021, midnight	N/A	0.0 ppb (0)	2.1 ppb (2)	N/A	2.1 ppb (2)	N/A	34.0 ppb (32)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	32.0
Jan. 17, 2021, 11 p.m.	N/A	0.0 ppb (0)	2.1 ppb (2)	N/A	2.1 ppb (2)	N/A	33.0 ppb (31)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	31.0
Jan. 17, 2021, 10 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	2.0 ppb (2)	N/A	32.0 ppb (30)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	30.0
Jan. 17, 2021, 9 p.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	33.0 ppb (31)	0.13 ppb (2)	N/A	7.0 μg/m³ (30)	31.0
Jan. 17, 2021, 8 p.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	33.0 ppb (31)	0.12 ppb (2)	N/A	4.0 μg/m³ (17)	31.0
Jan. 17, 2021, 7 p.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	32.0 ppb (30)	0.15 ppb (2)	N/A	5.0 μg/m³ (21)	30.0
Jan. 17, 2021, 6 p.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	30.0 ppb (28)	0.15 ppb (2)	N/A	2.0 μg/m³ (9)	28.0
Jan. 17, 2021, 5 p.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	29.0 ppb (27)	0.15 ppb (2)	N/A	1.0 μg/m³ (5)	27.0
Jan. 17, 2021, 4 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.8 ppb (2)	N/A	28.0 ppb (26)	0.15 ppb (2)	N/A	2.0 μg/m³ (9)	26.0
Jan. 17, 2021, 3 p.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.7 ppb (2)	N/A	28.0 ppb (26)	0.14 ppb (2)	N/A	4.0 μg/m³ (17)	26.0
Jan. 17, 2021, 2 p.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.6 ppb (2)	N/A	27.0 ppb (25)	0.14 ppb (2)	N/A	5.0 μg/m³ (21)	25.0
Jan. 17, 2021, 1 p.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	27.0 ppb (25)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	25.0
Jan. 17, 2021, noon	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	27.0 ppb (25)	0.14 ppb (2)	N/A	4.0 μg/m³ (17)	25.0
Jan. 17, 2021, 11 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	27.0 ppb (25)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	25.0
Jan. 17, 2021, 10 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	27.0 ppb (25)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	25.0
Jan. 17, 2021, 9 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	26.0 ppb (25)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	25.0
Jan. 17, 2021, 8 a.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	26.0 ppb (25)	0.13 ppb (2)	N/A	1.0 μg/m³ (5)	25.0
Jan. 17, 2021, 7 a.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	27.0 ppb (25)	0.13 ppb (2)	N/A	3.0 μg/m³ (13)	25.0
Jan. 17, 2021, 6 a.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	27.0 ppb (25)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	25.0
Jan. 17, 2021, 5 a.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	28.0 ppb (26)	0.14 ppb (2)	N/A	4.0 μg/m³ (17)	26.0
Jan. 17, 2021, 4 a.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	28.0 ppb (26)	0.13 ppb (2)	N/A	3.0 μg/m³ (13)	26.0
Jan. 17, 2021, 3 a.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	2.0 ppb (2)	N/A	27.0 ppb (25)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	25.0
Jan. 17, 2021, 2 a.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	27.0 ppb (25)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	25.0
Jan. 17, 2021, 1 a.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	26.0 ppb (25)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	25.0
Jan. 17, 2021, midnight	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	25.0 ppb (24)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	24.0
Jan. 16, 2021, 11 p.m.	N/A	0.0 ppb (0)	2.1 ppb (2)	N/A	2.1 ppb (2)	N/A	25.0 ppb (24)	0.13 ppb (2)	N/A	7.0 μg/m³ (30)	30.0
Jan. 16, 2021, 10 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	2.0 ppb (2)	N/A	25.0 ppb (24)	0.13 ppb (2)	N/A	7.0 μg/m³ (30)	30.0
Jan. 16, 2021, 9 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	26.0 ppb (25)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	25.0
Jan. 16, 2021, 8 p.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.7 ppb (2)	N/A	26.0 ppb (25)	0.13 ppb (2)	N/A	10.0 μg/m³ (42)	42.0
Jan. 16, 2021, 7 p.m.	N/A	0.1 ppb (1)	1.9 ppb (2)	N/A	1.7 ppb (2)	N/A	24.0 ppb (23)	0.15 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 16, 2021, 6 p.m.	N/A	0.1 ppb (1)	1.8 ppb (2)	N/A	1.6 ppb (2)	N/A	24.0 ppb (23)	0.14 ppb (2)	N/A	4.0 μg/m³ (17)	23.0
Jan. 16, 2021, 5 p.m.	N/A	0.1 ppb (1)	1.9 ppb (2)	N/A	1.7 ppb (2)	N/A	24.0 ppb (23)	0.14 ppb (2)	N/A	4.0 μg/m³ (17)	23.0
Jan. 16, 2021, 4 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.8 ppb (2)	N/A	24.0 ppb (23)	0.14 ppb (2)	N/A	6.0 μg/m³ (25)	25.0
Jan. 16, 2021, 3 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.8 ppb (2)	N/A	26.0 ppb (25)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	30.0
Jan. 16, 2021, 2 p.m.	N/A	0.0 ppb (0)	2.6 ppb (3)	N/A	2.5 ppb (3)	N/A	28.0 ppb (26)	0.13 ppb (2)	N/A	9.0 μg/m³ (38)	38.0
Jan. 16, 2021, 1 p.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	30.0 ppb (28)	0.14 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 16, 2021, noon	N/A	0.0 ppb (0)	3.5 ppb (4)	N/A	3.5 ppb (4)	N/A	32.0 ppb (30)	0.13 ppb (2)	N/A	6.0 μg/m³ (25)	30.0
Jan. 16, 2021, 11 a.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	33.0 ppb (31)	0.14 ppb (2)	N/A	6.0 μg/m³ (25)	31.0
Jan. 16, 2021, 10 a.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	32.0 ppb (30)	0.14 ppb (2)	N/A	6.0 μg/m³ (25)	30.0
Jan. 16, 2021, 9 a.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	33.0 ppb (31)	0.14 ppb (2)	N/A	4.0 μg/m³ (17)	31.0
Jan. 16, 2021, 8 a.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	33.0 ppb (31)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	31.0
Jan. 16, 2021, 7 a.m.	N/A	0.0 ppb (0)	4.9 ppb (5)	N/A	5.0 ppb (5)	N/A	34.0 ppb (32)	0.11 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 16, 2021, 6 a.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	2.0 ppb (2)	N/A	35.0 ppb (33)	0.11 ppb (2)	N/A	5.0 μg/m³ (21)	33.0
Jan. 16, 2021, 5 a.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	37.0 ppb (35)	0.11 ppb (2)	N/A	4.0 μg/m³ (17)	35.0
Jan. 16, 2021, 4 a.m.	N/A	0.0 ppb (0)	1.6 ppb (2)	N/A	1.6 ppb (2)	N/A	37.0 ppb (35)	0.11 ppb (2)	N/A	3.0 μg/m³ (13)	35.0
Jan. 16, 2021, 3 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	38.0 ppb (36)	0.11 ppb (2)	N/A	3.0 μg/m³ (13)	36.0
Jan. 16, 2021, 2 a.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.4 ppb (2)	N/A	38.0 ppb (36)	0.11 ppb (2)	N/A	4.0 μg/m³ (17)	36.0
Jan. 16, 2021, 1 a.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	38.0 ppb (36)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	36.0
Jan. 16, 2021, midnight	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.8 ppb (2)	N/A	39.0 ppb (37)	0.12 ppb (2)	N/A	6.0 μg/m³ (25)	37.0
Jan. 15, 2021, 11 p.m.	N/A	0.0 ppb (0)	1.5 ppb (2)	N/A	1.5 ppb (2)	N/A	40.0 ppb (38)	0.12 ppb (2)	N/A	5.0 μg/m³ (21)	38.0
Jan. 15, 2021, 10 p.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	39.0 ppb (37)	0.12 ppb (2)	N/A	5.0 μg/m³ (21)	37.0
Jan. 15, 2021, 9 p.m.	N/A	0.0 ppb (0)	1.4 ppb (2)	N/A	1.3 ppb (2)	N/A	40.0 ppb (38)	0.12 ppb (2)	N/A	5.0 μg/m³ (21)	38.0
Jan. 15, 2021, 8 p.m.	N/A	0.1 ppb (1)	1.5 ppb (2)	N/A	1.4 ppb (2)	N/A	39.0 ppb (37)	0.12 ppb (2)	N/A	2.0 μg/m³ (9)	37.0
Jan. 15, 2021, 7 p.m.	N/A	0.1 ppb (1)	1.6 ppb (2)	N/A	1.5 ppb (2)	N/A	37.0 ppb (35)	0.12 ppb (2)	N/A	2.0 μg/m³ (9)	35.0
Jan. 15, 2021, 6 p.m.	N/A	0.2 ppb (1)	1.8 ppb (2)	N/A	1.6 ppb (2)	N/A	36.0 ppb (34)	0.12 ppb (2)	N/A	0.0 μg/m³ (0)	34.0
Jan. 15, 2021, 5 p.m.	N/A	0.2 ppb (1)	1.7 ppb (2)	N/A	1.5 ppb (2)	N/A	35.0 ppb (33)	0.12 ppb (2)	N/A	0.0 μg/m³ (0)	33.0
Jan. 15, 2021, 4 p.m.	N/A	0.1 ppb (1)	1.3 ppb (2)	N/A	1.2 ppb (2)	N/A	34.0 ppb (32)	0.12 ppb (2)	N/A	4.0 μg/m³ (17)	32.0
Jan. 15, 2021, 3 p.m.	N/A	0.0 ppb (0)	1.2 ppb (2)	N/A	1.1 ppb (2)	N/A	33.0 ppb (31)	0.12 ppb (2)	N/A	6.0 μg/m³ (25)	31.0
Jan. 15, 2021, 2 p.m.	N/A	0.0 ppb (0)	0.9 ppb (1)	N/A	0.8 ppb (1)	N/A	32.0 ppb (30)	0.12 ppb (2)	N/A	2.0 μg/m³ (9)	30.0
Jan. 15, 2021, 1 p.m.	N/A	0.0 ppb (0)	0.8 ppb (1)	N/A	0.8 ppb (1)	N/A	33.0 ppb (31)	0.13 ppb (2)	N/A	4.0 μg/m³ (17)	31.0
Jan. 15, 2021, noon	N/A	0.0 ppb (0)	1.1 ppb (2)	N/A	1.1 ppb (2)	N/A	34.0 ppb (32)	0.14 ppb (2)	N/A	3.0 μg/m³ (13)	32.0
Jan. 15, 2021, 11 a.m.	N/A	0.0 ppb (0)	2.3 ppb (3)	N/A	2.3 ppb (3)	N/A	39.0 ppb (37)	0.16 ppb (3)	N/A	7.0 μg/m³ (30)	37.0
Jan. 15, 2021, 10 a.m.	N/A	0.0 ppb (0)	2.5 ppb (3)	N/A	2.5 ppb (3)	N/A	41.0 ppb (38)	0.15 ppb (2)	N/A	10.0 μg/m³ (42)	42.0
Jan. 15, 2021, 9 a.m.	N/A	0.0 ppb (0)	2.6 ppb (3)	N/A	2.6 ppb (3)	N/A	43.0 ppb (40)	0.15 ppb (2)	N/A	8.0 μg/m³ (34)	40.0
Jan. 15, 2021, 8 a.m.	N/A	0.0 ppb (0)	2.4 ppb (3)	N/A	2.4 ppb (3)	N/A	45.0 ppb (42)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	42.0
Jan. 15, 2021, 7 a.m.	N/A	0.0 ppb (0)	2.5 ppb (3)	N/A	2.5 ppb (3)	N/A	45.0 ppb (42)	0.13 ppb (2)	N/A	7.0 μg/m³ (30)	42.0
Jan. 15, 2021, 6 a.m.	N/A	0.0 ppb (0)	2.4 ppb (3)	N/A	2.4 ppb (3)	N/A	45.0 ppb (42)	0.12 ppb (2)	N/A	6.0 μg/m³ (25)	42.0
Jan. 15, 2021, 5 a.m.	N/A	0.0 ppb (0)	2.4 ppb (3)	N/A	2.4 ppb (3)	N/A	45.0 ppb (42)	0.12 ppb (2)	N/A	5.0 μg/m³ (21)	42.0
Jan. 15, 2021, 4 a.m.	N/A	N/A	N/A	N/A	N/A	N/A	43.0 ppb (40)	N/A	N/A	4.0 μg/m³ (17)	40.0
Jan. 15, 2021, 3 a.m.	N/A	0.0 ppb (0)	2.7 ppb (3)	N/A	2.7 ppb (3)	N/A	41.0 ppb (38)	0.13 ppb (2)	N/A	6.0 μg/m³ (25)	38.0
Jan. 15, 2021, 2 a.m.	N/A	0.0 ppb (0)	2.4 ppb (3)	N/A	2.4 ppb (3)	N/A	43.0 ppb (40)	0.13 ppb (2)	N/A	9.0 μg/m³ (38)	40.0
Jan. 15, 2021, 1 a.m.	N/A	0.0 ppb (0)	2.9 ppb (3)	N/A	2.9 ppb (3)	N/A	42.0 ppb (39)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	39.0
Jan. 15, 2021, midnight	N/A	0.0 ppb (0)	3.3 ppb (4)	N/A	3.3 ppb (4)	N/A	41.0 ppb (38)	0.14 ppb (2)	N/A	6.0 μg/m³ (25)	38.0
Jan. 14, 2021, 11 p.m.	N/A	0.0 ppb (0)	3.0 ppb (3)	N/A	3.0 ppb (3)	N/A	42.0 ppb (39)	0.14 ppb (2)	N/A	9.0 μg/m³ (38)	39.0
Jan. 14, 2021, 10 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	2.0 ppb (2)	N/A	42.0 ppb (39)	0.13 ppb (2)	N/A	7.0 μg/m³ (30)	39.0
Jan. 14, 2021, 9 p.m.	N/A	0.0 ppb (0)	1.7 ppb (2)	N/A	1.7 ppb (2)	N/A	42.0 ppb (39)	0.13 ppb (2)	N/A	6.0 μg/m³ (25)	39.0
Jan. 14, 2021, 8 p.m.	N/A	0.0 ppb (0)	1.8 ppb (2)	N/A	1.7 ppb (2)	N/A	42.0 ppb (39)	0.12 ppb (2)	N/A	2.0 μg/m³ (9)	39.0
Jan. 14, 2021, 7 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	41.0 ppb (38)	0.15 ppb (2)	N/A	2.0 μg/m³ (9)	38.0
Jan. 14, 2021, 6 p.m.	N/A	0.1 ppb (1)	2.1 ppb (2)	N/A	2.0 ppb (2)	N/A	37.0 ppb (35)	0.16 ppb (3)	N/A	6.0 μg/m³ (25)	35.0
Jan. 14, 2021, 5 p.m.	N/A	0.0 ppb (0)	1.9 ppb (2)	N/A	1.9 ppb (2)	N/A	37.0 ppb (35)	0.15 ppb (2)	N/A	2.0 μg/m³ (9)	35.0
Jan. 14, 2021, 4 p.m.	N/A	0.0 ppb (0)	2.0 ppb (2)	N/A	1.9 ppb (2)	N/A	37.0 ppb (35)	0.15 ppb (2)	N/A	3.0 μg/m³ (13)	35.0
Jan. 14, 2021, 3 p.m.	N/A	0.0 ppb (0)	2.2 ppb (3)	N/A	2.1 ppb (2)	N/A	38.0 ppb (36)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	36.0
Jan. 14, 2021, 2 p.m.	N/A	0.0 ppb (0)	2.7 ppb (3)	N/A	2.6 ppb (3)	N/A	39.0 ppb (37)	N/A	N/A	4.0 μg/m³ (17)	37.0
Jan. 14, 2021, 1 p.m.	N/A	0.0 ppb (0)	3.0 ppb (3)	N/A	3.0 ppb (3)	N/A	40.0 ppb (38)	0.15 ppb (2)	N/A	7.0 μg/m³ (30)	38.0
Jan. 14, 2021, noon	N/A	0.0 ppb (0)	3.1 ppb (3)	N/A	3.1 ppb (3)	N/A	39.0 ppb (37)	0.14 ppb (2)	N/A	8.0 μg/m³ (34)	37.0
Jan. 14, 2021, 11 a.m.	N/A	0.0 ppb (0)	3.4 ppb (4)	N/A	3.4 ppb (4)	N/A	39.0 ppb (37)	0.16 ppb (3)	N/A	8.0 μg/m³ (34)	37.0
Jan. 14, 2021, 10 a.m.	N/A	0.0 ppb (0)	3.5 ppb (4)	N/A	3.5 ppb (4)	N/A	39.0 ppb (37)	0.15 ppb (2)	N/A	9.0 μg/m³ (38)	38.0
Jan. 14, 2021, 9 a.m.	N/A	0.0 ppb (0)	3.5 ppb (4)	N/A	3.5 ppb (4)	N/A	37.0 ppb (35)	0.15 ppb (2)	N/A	9.0 μg/m³ (38)	38.0
Jan. 14, 2021, 8 a.m.	N/A	0.0 ppb (0)	3.8 ppb (4)	N/A	3.8 ppb (4)	N/A	34.0 ppb (32)	0.15 ppb (2)	N/A	8.0 μg/m³ (34)	34.0
Jan. 14, 2021, 7 a.m.	N/A	0.0 ppb (0)	3.3 ppb (4)	N/A	3.3 ppb (4)	N/A	35.0 ppb (33)	0.15 ppb (2)	N/A	7.0 μg/m³ (30)	33.0
Jan. 14, 2021, 6 a.m.	N/A	0.0 ppb (0)	3.2 ppb (4)	N/A	3.2 ppb (4)	N/A	33.0 ppb (31)	0.15 ppb (2)	N/A	7.0 μg/m³ (30)	31.0
Jan. 14, 2021, 5 a.m.	N/A	0.0 ppb (0)	4.4 ppb (5)	N/A	4.4 ppb (5)	N/A	29.0 ppb (27)	0.16 ppb (3)	N/A	9.0 μg/m³ (38)	38.0
Jan. 14, 2021, 4 a.m.	N/A	0.0 ppb (0)	3.9 ppb (4)	N/A	3.9 ppb (4)	N/A	30.0 ppb (28)	0.15 ppb (2)	N/A	5.0 μg/m³ (21)	28.0
Jan. 14, 2021, 3 a.m.	N/A	0.0 ppb (0)	2.4 ppb (3)	N/A	2.4 ppb (3)	N/A	37.0 ppb (35)	0.13 ppb (2)	N/A	5.0 μg/m³ (21)	35.0
Jan. 14, 2021, 2 a.m.	N/A	0.0 ppb (0)	2.3 ppb (3)	N/A	2.3 ppb (3)	N/A	36.0 ppb (34)	0.14 ppb (2)	N/A	6.0 μg/m³ (25)	34.0
Jan. 14, 2021, 1 a.m.	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.3 ppb (2)	N/A	40.0 ppb (38)	0.11 ppb (2)	N/A	1.0 μg/m³ (5)	38.0
Jan. 14, 2021, midnight	N/A	0.0 ppb (0)	1.3 ppb (2)	N/A	1.4 ppb (2)	N/A	36.0 ppb (34)	0.12 ppb (2)	N/A	2.0 μg/m³ (9)	34.0
Jan. 13, 2021, 11 p.m.	N/A	0.0 ppb (0)	0.9 ppb (1)	N/A	0.9 ppb (1)	N/A	26.0 ppb (25)	0.14 ppb (2)	N/A	7.0 μg/m³ (30)	30.0
Jan. 13, 2021, 10 p.m.	N/A	0.0 ppb (0)	0.9 ppb (1)	N/A	0.9 ppb (1)	N/A	28.0 ppb (26)	0.13 ppb (2)	N/A	7.0 μg/m³ (30)	30.0

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