- Photochemical Assessment Monitoring Station
Photochemical Assessment Monitoring Stations are ambient air monitoring sites mandated by the 1990 Clean Air Act amendments. Placed in areas of high ozone, they monitor
volatile organic compound s,nitrogen oxide s,ozone and meteorological parameters. The data is used by the Environmental Protection Agency to understand the causes of ozone pollution and monitor improvement.Compounds monitored
AIRS CODE Parameter Name 43207 Freon 11343208 Freon 114 43218 1,3-Butadiene 43801 Chloromethane aka Methyl chloride43802 Methylene chloride 43804 Carbon tetrachloride 43811 Trichlorofluoromethane (Freon-11)43812 Chloroethane 43813 1,1-Dichloroethane 43814 1,1,1-Trichloroethane 43815 1,2-Dichloroethane 43817 Perchloroethylene 43818 1,1,2,2-Tetrachloroethane 43819 Bromomethane 43820 1,1,2-Trichloroethane 43823 Dichlorodifluoromethane (Freon-12)43824 Trichloroethylene 43826 1,1-Dichloroethylene 43829 1,2- Dichloropropane 43830 trans- 1,3-Dichloropropylene 43831 cis- 1,3-Dichloropropylene 43839 cis- 1,2-Dichloroethene 43843 1,2-Dibromoethane 43844 Hexachlorobutadiene 43860 Vinyl chloride 45109 m-Xylene andp-Xylene 45203 Ethylbenzene 45202 Toluene 45201 Benzene 45204 o-Xylene 45207 1,3,5-Trimethylbenzene 45208 1,2,4-Trimethylbenzene 45213 p-Ethyltoluene 45220 Styrene 45801 Chlorobenzene 45805 1,2-Dichlorobenzene 45806 1,3-Dichlorobenzene 45807 1,4-Dichlorobenzene 45809 Benzyl chloride 45810 1,2,4-Trichlorobenzene 43502 Formaldehyde 43503 Acetaldehyde 43504 Propionaldehyde 43505 Acrolein 43551 Acetone External links
* [http://www.epa.gov/oar/oaqps/pams/ Enhanced Ozone Monitoring (PAMS)]
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