Air Toxics at School 2022
School Info
School Stony Brook School Street 9 Farmer Way City Westford State MA Number of students 612 Student % minority 35% Type Regular School Status 1 Level Middle School Data Source CCD (public schools)
Air Toxics Info
Number of facilities affecting school 142 Number of chemicals affecting school 67 Toxic percentile nationwide (1=worst) 60th Toxic rank nationwide (1=worst) 78,098 Toxic percentile statewide (1=worst) 79th Toxic rank statewide (1=worst) 1,975 Toxic Hazard 351.39
This school's air toxic concentration is 0.07 times the national average at schools.
This school's air toxic concentration is 0.36 times the state average at schools.
Top 5 facilities
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Top chemicals
Chemical Toxic Hazard
Chromium 192.24
Cobalt 91.75
Ethylene oxide 18.31
Lead 10.41
Nickel 8.80
Trichloroethylene 8.77
Diisocyanates 4.68
Nickel compounds 4.11
Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) 3.62
Chloroform 2.86
Formaldehyde 1.23
Benzene 1.04
Zinc compounds 0.71
Polycyclic aromatic compounds 0.71
Antimony compounds 0.47
Maleic anhydride 0.37
Di(2-ethylhexyl) phthalate 0.25
Dicyclopentadiene 0.22
Toluene diisocyanate (mixed isomers) 0.09
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.08
Hydrogen cyanide 0.08
N,N-Dimethylformamide 0.07
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.06
Naphthalene 0.05
Copper 0.05
Lead compounds 0.04
Acrylonitrile 0.04
Dichloromethane (Methylene chloride) 0.04
Peracetic acid 0.04
Ethylbenzene 0.03
Nitric acid 0.03
Toluene 0.03
Triethylamine 0.03
Certain glycol ethers 0.02
n-Hexane (Hexane) 0.01
Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) 0.01
Hydrogen fluoride (Hydrofluoric acid) 0.01
Xylene (mixed isomers) 0.01
o-Xylene 0.00
Ethylene glycol 0.00
Butyl acrylate 0.00
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.00
Methyl tert-butyl ether 0.00
Toluene-2,4-diisocyanate 0.00
Silver compounds 0.00
1,2,4-Trimethylbenzene 0.00
Phthalic anhydride 0.00
Phenol 0.00
Manganese 0.00
Acetonitrile 0.00
Methanol 0.00
Styrene 0.00
Methyl methacrylate 0.00
Acrylic acid 0.00
Ethyl acrylate 0.00
Benzo[g,h,i]perylene 0.00
n-Butyl alcohol (1-Butanol) 0.00
Cyclohexane 0.00
Sodium nitrite 0.00
Methyl isobutyl ketone 0.00
Acetophenone 0.00
Formic acid 0.00
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 0.00
Benzoyl peroxide 0.00
Lithium carbonate 0.00
N-Methyl-2-pyrrolidone 0.00
Tetrabromobisphenol A 0.00
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Top 5 chemicals from facilities
Facility Parent Company Chemical Toxic Hazard
PROTO LABS INC. PROTO LABS INC Chromium 60.19
PROTO LABS INC PROTO LABS INC Chromium 60.19
TECOMET Charlesbank Capital Partners Cobalt 58.73
GE AVIATION General Electric Chromium 43.95
HITCHINER COUNTERGRAVITY CAST OPERATIONS (VCO/DCO/MCT) HITCHINER MANUFACTURING CO INC Cobalt 18.34
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Political Economy Research Institute
