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Air Monitoring Comparison Values

(In AutoGC elution order)

Air Monitoring Comparison Values (AMCVs) are used to evaluate the potential for effects to occur as a result of exposure to concentrations of constituents in the air. AMCVs are based on data concerning health effects, odor, and vegetation effects. They are not ambient air standards. If predicted or measured airborne levels of a constituent do not exceed the comparison level, adverse health or welfare effects would not be expected to result. If ambient levels of constituents in air exceed the comparison levels, it does not necessarily indicate a problem, but rather, triggers a more in-depth review. If you have any questions about the potential for health, odor, or vegetation effects from exposure to reported concentrations of any of these compounds, please contact the Toxicology Division by telephone at (512) 239-3900 or by email at tox@tceq.texas.gov.

Elution
Order
ParamNameCAS NumberTargetCarbon
Num
Minimum
Detection
Limit
Air Monitoring Comparison Values
ppb-Cppb-V
ppb-Cppb-VOdorShort-TermLong-TermOdorShort-TermLong-Term
VegetationHealthVegetationHealthVegetationHealthVegetationHealth
143202Ethane74-84-0Y20.40.2          
243203Ethylene74-85-1Y20.40.2 240010000006010600 1200500000305300
343204Propane74-98-6Y30.40.1          
443205Propylene115-07-1Y30.40.1          
543214Isobutane75-28-5Y40.40.1  132000 40000  33000 10000
643212n-Butane106-97-8Y40.40.1  368000 40000  92000 10000
743206Acetylene74-86-2Y20.40.2  50000 5000  25000 2500
843216t-2-Butene624-64-6Y40.40.1  60000 2800  15000 700
9432801-Butene106-98-9Y40.40.1  108000 9200  27000 2300
1043270Isobutene115-11-7 40.40.1  1080000 192000  270000 48000
1143217c-2-Butene590-18-1Y40.40.1  60000 2800  15000 700
1243242Cyclopentane287-92-3Y50.40.08  29500 2950  5900 590
1343221Isopentane78-78-4Y50.40.08  340000 40500  68000 8100
1443220n-Pentane109-66-0Y50.40.08  340000 40500  68000 8100
15432181,3-Butadiene106-99-0Y40.40.1920 6800 36230 1700 9
16433423-Methyl-1-Butene+Cyclopentene  50.40.08  14500 1450  2900 290
1743226t-2-Pentene646-04-8Y50.40.08  60000 2800  12000 560
18432282-Methyl-2-Butene513-35-9 50.40.08  60000 2800  12000 560
19432241-Pentene109-67-1Y50.40.08500 60000 2800100 12000 560
2043227c-2-Pentene627-20-3Y50.40.08  60000 2800  12000 560
21432442,2-Dimethylbutane75-83-2Y60.40.07  32400 1140  5400 190
22432842,3-Dimethylbutane79-29-8 60.40.07  32400 1140  5400 190
23432852-Methylpentane107-83-5 60.40.07  32400 1140  5400 190
24432303-Methylpentane96-14-0 60.40.07  32400 1140  5400 190
2543243Isoprene78-79-5Y50.40.08235 100 1047 20 2
26432344-Methyl-1-Pentene691-37-2 60.40.07  2940 294  490 49
27432462-Methyl-1-Pentene763-29-1 60.40.07  2940 294  490 49
28432451-Hexene592-41-6 60.40.07  3000 300  500 50
2943231n-Hexane110-54-3Y60.40.07  32400 1140  5400 190
3043289t-2-Hexene4050-45-7 60.40.07  2940 294  490 49
3143290c-2-Hexene7688-21-3 60.40.07  2940 294  490 49
3243262Methylcyclopentane96-37-7Y60.40.07  4500 450  750 75
33432472,4-Dimethylpentane108-08-7Y70.40.06  58100 15400  8300 2200
3445201Benzene71-43-2Y60.40.07  1080 8.4  180 1.4
3543248Cyclohexane110-82-7Y60.40.07  6000 600  1000 100
36432632-Methylhexane591-76-4Y70.40.06  58100 15400  8300 2200
37432912,3-Dimethylpentane565-59-3Y70.40.06  58100 15400  8300 2200
38432493-Methylhexane589-34-4Y70.40.06  58100 15400  8300 2200
39432502,2,4-Trimethylpentane540-84-1Y80.40.05  32800 3040  4100 380
4043232n-Heptane142-82-5Y70.40.06  58100 15400  8300 2200
4143261Methylcyclohexane108-87-2Y70.40.06  28000 2800  4000 400
42432522,3,4-Trimethylpentane565-75-3Y80.40.05  32800 3040  4100 380
4345202Toluene108-88-3Y70.40.06  28000 7700  4000 1100
44439602-Methylheptane592-27-8Y80.40.05  32800 3040  4100 380
45432533-Methylheptane589-81-1Y80.40.05  32800 3040  4100 380
4643233n-Octane111-65-9Y80.40.05  32800 3040  4100 380
4745203Ethyl Benzene100-41-4Y80.40.05  160000 3520  20000 440
4845109p-Xylene + m-Xylene Y80.40.05  13600 1120  1700 140
4945220Styrene100-42-5Y80.40.05208 41600 88026 5200 110
5045204o-Xylene95-47-6Y80.40.05  13600 1120  1700 140
5143235n-Nonane111-84-2Y90.40.04  27000 2520  3000 280
5245210Isopropyl Benzene - Cumene98-82-8Y90.40.041170 4590 459130 510 51
5345209n-Propylbenzene103-65-1Y90.40.04  4590 459  510 51
5445212m-Ethyltoluene620-14-4 90.40.04  2250 225  250 25
5545213p-Ethyltoluene622-96-8 90.40.04  2250 225  250 25
56452071,3,5-Trimethylbenzene108-67-8Y90.40.04  27000 333  3000 37
5745211o-ethyltoluene611-14-3 90.40.04  2250 225  250 25
58452081,2,4-Trimethylbenzene95-63-6Y90.40.04  27000 333  3000 37
5943238n-Decane124-18-5Y100.40.04  10000 1900  1000 190
60452251,2,3-Trimethylbenzene526-73-8Y90.40.04  27000 333  3000 37
6145218m-Diethylbenzene141-93-5 100.40.04  4500 450  450 45
6245219p-Diethylbenzene105-05-5 100.40.04  4500 450  450 45
6343954n-Undecane1120-21-4 110.40.04  6050 605  550 55
6443256a-Pinene80-56-8 100.40.04  2000 200  200 20
6543257b-Pinene127-91-3 100.40.04  2000 200  200 20
6643283Cyclopentene142-29-0 50.40.08  14500 1450  2900 290
67432823-Methyl-1-Butene563-45-1 50.40.08500 38500 3850100 7700 770
Elution
Order
ParamNameCAS NumberTargetCarbon
Num
ppb-Cppb-VOdorVegetationHealthVegetationHealthOdorVegetationHealthVegetationHealth
Short-TermLong-TermShort-TermLong-Term
Minimum
Detection
Limit
ppb-Cppb-V
Air Monitoring Comparison Value