POLLUTION LOCATOR|Hazardous Air Pollutants | 1996 Emissions Data Used to Estimate Exposures

County:      MONTGOMERY


HAP Sorted by Added Cancer Risk (per 1,000,000) Noncancer Hazard Index
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Emissions from Point Sources (tons/yr)
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Emissions from Area Soucres (tons/yr)
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Emissions from Onroad Mobile Sources (tons/yr)
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Emissions from Nonroad Mobile Sources (tons/yr)
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DIESEL EMISSIONS 970 0.650 0 310 580
CHROMIUM 72 0.0600.27 0.69 0.023 0.065
BENZENE 60 0.0340.059 130 290 320
CARBON TETRACHLORIDE 36 0.0210 0.22 0 0
POLYCYCLIC ORGANIC MATTER (POM) 20 --0.00027 28 0.16 0.082
1,3-BUTADIENE 15 0.00440 1.1 38 24
FORMALDEHYDE 10 0.570.33 11 160 230
VINYL CHLORIDE 4.0 0.010110 0.34 0 0
ACETALDEHYDE 3.3 0.144.7 1.3 45 110
1,3-DICHLOROPROPENE (MIXED ISOMERS) 2.1 0.00660 57 0 0
1,2-DICHLOROETHANE 2.0 0.0002317 0.058 0 0
TETRACHLOROETHYLENE 1.8 0.00780.0019 88 0 0
ETHYLENE OXIDE 0.97 0.000370 3.1 0 0
TRICHLOROETHYLENE 0.91 0.00076240 36 0 0
NICKEL 0.86 0.0660.27 0.93 0.018 0.034
ARSENIC 0.66 0.00670.027 0.079 0.00042 0.0000059
CADMIUM 0.64 0.0180.0077 0.14 0 0
DICHLOROMETHANE 0.58 0.001558 160 0 0
1,2-DIBROMOETHANE 0.53 0.00940 0.00024 0 0
CHLOROFORM 0.45 0.000280 1.5 0 0
ACRYLONITRILE 0.096 0.000170 0.080 0 0
BERYLLIUM 0.074 0.0310.00095 0.0095 0 0
LEAD 0.072 0.0400.071 1.6 0.032 0
HEXACHLOROBENZENE 0.046 0.0000300 0.000014 0 0
QUINOLINE 0.0030 --0 0.00031 0 0
1,1,2,2-TETRACHLOROETHANE 0.0010 0.00000000910 0.00033 0 0
HYDRAZINE 0.0010 0.00000100 0.00013 0 0
1,2-DICHLOROPROPANE 0 0.00000450 0.0048 0 0
MERCURY -- 0.00580.44 0.12 0.00032 0.018
MANGANESE -- 0.0190.031 1.2 0.0098 0.073
ACROLEIN -- 2.40.013 5.1 10 17

NOTE: The National-Scale Air Toxics Assessment (NATA) provides only aggregate data on 1996 point source releases in an area. To help identify sepcific companies which may be responsible for these releases, Scorecard disaggregates summary point source data to facility-level data based on the 2002 Toxics Releases Inventory (TRI). NATA and TRI data for an area often differ, because they involve different reporting years (1996 vs. 2002) and aggregation methods (NATA often includes point source emissions from outside geopolitical boundaries, since these can impact estimated exposures in an area).