Air Toxics at School 2022
School Info
School Nabnasset
Street 99 Plain Road
City Westford
State MA
Number of students 369
Student % minority 28%
Type Regular School
Status 1
Level Elementary
Data Source CCD (public schools)
Air Toxics Info
Number of facilities affecting school 143
Number of chemicals affecting school 68
Toxic percentile nationwide (1=worst) 60th
Toxic rank nationwide (1=worst) 77,234
Toxic percentile statewide (1=worst) 78th
Toxic rank statewide (1=worst) 1,935
Toxic Hazard 367.22
This school's air toxic concentration is 0.08 times the national average at schools.
This school's air toxic concentration is 0.38 times the state average at schools.
Top 5 facilities
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Top chemicals
Chemical Toxic Hazard
Chromium 179.74
Cobalt 92.52
Hydrazine 23.55
Ethylene oxide 18.81
Lead 13.16
Trichloroethylene 9.12
Nickel 8.42
Diisocyanates 4.70
Nickel compounds 4.21
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.) 3.37
Chloroform 3.04
Polycyclic aromatic compounds 1.27
Benzene 1.13
Formaldehyde 1.04
Zinc compounds 0.91
Antimony compounds 0.44
Maleic anhydride 0.34
Di(2-ethylhexyl) phthalate 0.25
Dicyclopentadiene 0.18
Toluene diisocyanate (mixed isomers) 0.16
Hydrogen cyanide 0.12
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.12
N,N-Dimethylformamide 0.09
Copper 0.06
Naphthalene 0.06
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.06
Lead compounds 0.04
Toluene 0.04
Acrylonitrile 0.04
Ethylbenzene 0.03
Peracetic acid 0.03
Triethylamine 0.03
Dichloromethane (Methylene chloride) 0.03
Nitric acid 0.02
n-Hexane (Hexane) 0.01
Certain glycol ethers 0.01
Hydrogen fluoride (Hydrofluoric acid) 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
Xylene (mixed isomers) 0.01
o-Xylene 0.00
Ethylene glycol 0.00
Butyl acrylate 0.00
Toluene-2,4-diisocyanate 0.00
Silver compounds 0.00
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.00
Methyl tert-butyl ether 0.00
1,2,4-Trimethylbenzene 0.00
Phthalic anhydride 0.00
Phenol 0.00
Acetonitrile 0.00
Manganese 0.00
Methanol 0.00
Methyl methacrylate 0.00
Styrene 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
(click here to shrink list to only top 5 chemicals)
Top 5 chemicals from facilities
Facility Parent Company Chemical Toxic Hazard
TECOMET Charlesbank Capital Partners Cobalt 61.27
PROTO LABS INC. PROTO LABS INC Chromium 52.23
PROTO LABS INC PROTO LABS INC Chromium 52.23
GE AVIATION General Electric Chromium 46.43
UNION SPECIALTIES INC UNION SPECIALTIES INC Hydrazine 23.55
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