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1999
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2015
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2019
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2021
12 Hour (AM/PM) 24 Hour
Carbon Monoxide in parts per million
Sulfur Dioxide in parts per billion
NOy in parts per billion
Nitric Oxide in parts per billion
Nitrogen Dioxide in parts per billion
Oxides of Nitrogen in parts per billion
Total Non-Methane Organic Compounds in parts per billion carbon
Ethane in parts per billion
Ethylene in parts per billion
Propane in parts per billion
Propylene in parts per billion
Acetylene in parts per billion
N-BUTANE in parts per billion
Isobutane in parts per billion
Trans-2-Butene in parts per billion
Cis-2-Butene in parts per billion
1,3 Butadiene in parts per billion
N-PENTANE in parts per billion
ISO-PENTANE in parts per billion
1-Pentene in parts per billion
TRANS-2-PENTENE in parts per billion
CIS-2-PENTENE in parts per billion
3-METHYLPENTANE in parts per billion
n-Hexane in parts per billion
N-HEPTANE in parts per billion
N-OCTANE in parts per billion
N-NONANE in parts per billion
N-DECANE in parts per billion
Isoprene in parts per billion
1-HEXENE in
CYCLOHEXANE in parts per billion
3-METHYLHEXANE in parts per billion
2,2,4-TRIMETHYLPENTA in parts per billion
2,3,4-TRIMETHYLPENTA in parts per billion
3-METHYLHEPTANE in parts per billion
A-PINENE in
B-PINENE in
METHYLCYCLOHEXANE in parts per billion
METHYLCYCLOPENTANE in parts per billion
2-METHYLHEXANE in
1-Butene in parts per billion
2,3-DIMETHYLBUTANE in parts per billion
CARBON TETRACHLORIDE in
PERCHLOROETHYLENE in
N-UNDECANE in parts per billion
Ozone in parts per billion
p-Xylene + m-Xylene in parts per billion
Benzene in parts per billion
Toluene in parts per billion
Ethyl Benzene in parts per billion
o-Xylene in parts per billion
1,3,5-TRI-M-BENZENE in parts per billion
1,2,4-TRI-M-BENZENE in parts per billion
N-PROPYLBENZENE in parts per billion
ISO-PROPYLBENZENE in parts per billion
O-ETHYLTOLUENE in parts per billion
M-ETHYLTOLUENE in parts per billion
P-ETHYLTOLUENE in parts per billion
M-DIETHYLBENZENE in parts per billion
P-DIETHYLBENZENE in parts per billion
Styrene in parts per billion
1,2,3-TRI-M-BENZENE in parts per billion
Wind Speed in miles per hour
Resultant Wind Speed in miles per hour
Resultant Wind Direction in degrees compass
Maximum Wind Gust in miles per hour
Standard Deviation of Horizontal Wind Direction
Outdoor Temperature in degrees Fahrenheit
Dew Point Temperature in degrees Fahrenheit
Internal Station Temperature in degrees Fahrenheit
Relative Humidity in percent
Solar Radiation in langleys per minute
Ultraviolet Radiation in MCAL per square centimeter per minute
Net Radiation in langleys per minute
Barometric Pressure in millibars
Precipitation in inches (rainfall)
PM-2.5 Mass in
PM-10 Mass in micrograms
PM-10 (Standard Conditions) in ug/cu meter (25 c)
PM-10 (Local Conditions) in micrograms per cubic meter (local conditions)
PM-Coarse in micrograms per cubic meter (local conditions)
PM-2.5 (Local Conditions) in micrograms per cubic meter (local conditions)
PM-2.5 (Local Conditions) in micrograms per cubic meter (local conditions)