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) 239-1795 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
143202Ethane74-84-0Y20.40.2360000    180000    
243203Ethylene74-85-1Y20.40.25400002400100000060106002700001200500000305300
343204Propane74-98-6Y30.40.14500000    1500000    
443205Propylene115-07-1Y30.40.139000    13000    
543214Isobutane75-28-5Y40.40.18160 32000 32002040 8000 800
643212n-Butane106-97-8Y40.40.14800000 32000 32001200000 8000 800
743206Acetylene74-86-2Y20.40.21240000 50000 5000620000 25000 2500
843216t-2-Butene624-64-6Y40.40.18400 60000  2100 15000  
9432801-Butene106-98-9Y40.40.11440 200000  360 50000  
1043270Isobutene115-11-7 40.40.15200 1920000 1880001300 480000 47000
1143217c-2-Butene590-18-1Y40.40.18400 60000  2100 15000  
1243242Cyclopentane287-92-3Y50.40.08  6000 600  1200 120
1343221Isopentane78-78-4Y50.40.086500 340000 400001300 68000 8000
1443220n-Pentane109-66-0Y50.40.087000 340000 400001400 68000 8000
15432181,3-Butadiene106-99-0Y40.40.1920 6800 36.4230 1700 9.1
16433423-Methyl-1-Butene+Cyclopentene  50.40.08  14500 1450  2900 290
1743226t-2-Pentene646-04-8Y50.40.08  13000    2600  
18432282-Methyl-2-Butene513-35-9 50.40.081250 2500 250250 500 50
19432241-Pentene109-67-1Y50.40.08500 13000  100 2600  
2043227c-2-Pentene627-20-3Y50.40.08  13000    2600  
21432442,2-Dimethylbutane75-83-2Y60.40.07  6000 600  1000 100
22432842,3-Dimethylbutane79-29-8 60.40.07  5940 594  990 99
23432852-Methylpentane107-83-5 60.40.07498 6000 60083 1000 100
24432303-Methylpentane96-14-0 60.40.07  6000 600  1000 100
2543243Isoprene78-79-5Y50.40.0825 100 105 20 2
26432344-Methyl-1-Pentene691-37-2 60.40.07120 3000 30020 500 50
27432462-Methyl-1-Pentene763-29-1 60.40.07120 3000 30020 500 50
28432451-Hexene592-41-6 60.40.07120 3000 30020 500 50
2943231n-Hexane110-54-3Y60.40.079000 10800 11401500 1800 190
3043289t-2-Hexene4050-45-7 60.40.07  3000 300  500 50
3143290c-2-Hexene7688-21-3 60.40.07  3000 300  500 50
3243262Methylcyclopentane96-37-7Y60.40.0710200 4500 4501700 750 75
33432472,4-Dimethylpentane108-08-7Y70.40.062030000 5950 595290000 850 85
3445201Benzene71-43-2Y60.40.0716200 1080 8.42700 180 1.4
3543248Cyclohexane110-82-7Y60.40.072520 6000 600420 1000 100
36432632-Methylhexane591-76-4Y70.40.06  5250 525  750 75
37432912,3-Dimethylpentane565-59-3Y70.40.06  5950 595  850 85
38432493-Methylhexane589-34-4Y70.40.06  5250 525  750 75
39432502,2,4-Trimethylpentane540-84-1Y80.40.05  6000 600  750 75
4043232n-Heptane142-82-5Y70.40.064690 5950 595670 850 85
4143261Methylcyclohexane108-87-2Y70.40.061050 28000 2800150 4000 400
42432522,3,4-Trimethylpentane565-75-3Y80.40.05  6000 600  750 75
4345202Toluene108-88-3Y70.40.061190 28000 7700170 4000 1100
44439602-Methylheptane592-27-8Y80.40.05  6000 600  750 75
45432533-Methylheptane589-81-1Y80.40.05  6000 600  750 75
4643233n-Octane111-65-9Y80.40.0513600 6000 6001700 750 75
4745203Ethyl Benzene100-41-4Y80.40.051360 160000 3600170 20000 450
4845109p-Xylene + m-Xylene Y80.40.05640 13600 112080 1700 140
4945220Styrene100-42-5Y80.40.05200 40800 88025 5100 110
5045204o-Xylene95-47-6Y80.40.053040 13600 1120380 1700 140
5143235n-Nonane111-84-2Y90.40.0419800 18000 18002200 2000 200
5245210Isopropyl Benzene - Cumene98-82-8Y90.40.04900 4500 450100 500 50
5345209n-Propylbenzene103-65-1Y90.40.0434.2 2250 2253.8 250 25
5445212m-Ethyltoluene620-14-4 90.40.04162 2250 22518 250 25
5545213p-Ethyltoluene622-96-8 90.40.0474.7 2250 2258.3 250 25
56452071,3,5-Trimethylbenzene108-67-8Y90.40.04  2250 225  250 25
5745211o-ethyltoluene611-14-3 90.40.04  2250 225  250 25
58452081,2,4-Trimethylbenzene95-63-6Y90.40.04  2250 225  250 25
5943238n-Decane124-18-5Y100.40.046200 17500 1750620 1750 175
60452251,2,3-Trimethylbenzene526-73-8Y90.40.04  2250 225  250 25
6145218m-Diethylbenzene141-93-5 100.40.04700 4600 46070 460 46
6245219p-Diethylbenzene105-05-5 100.40.043.9 4600 4600.39 460 46
6343954n-Undecane1120-21-4 110.40.04  6050 605  550 55
6443256a-Pinene80-56-8 100.40.04100 6280 63010 628 63
6543257b-Pinene127-91-3 100.40.04330 2000 20033 200 20
6643283Cyclopentene142-29-0 50.40.08  14500 1450  2900 290
67432823-Methyl-1-Butene563-45-1 50.40.081250 40000 4000250 8000 800
Elution
Order		ParamNameCAS NumberTargetCarbon
Num		ppb-Cppb-VOdorVegetationHealthVegetationHealthOdorVegetationHealthVegetationHealth
Short-TermLong-TermShort-TermLong-Term
Minimum
Detection
Limit		ppb-Cppb-V
Air Monitoring Comparison Value
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