Air Toxics at School 2022
School Info
School Northwest
Street 45 Stearns Avenue
City Leominster
State MA
Number of students 727
Student % minority 63%
Type Regular School
Status 1
Level Elementary
Data Source CCD (public schools)
Air Toxics Info
Number of facilities affecting school 101
Number of chemicals affecting school 61
Toxic percentile nationwide (1=worst) 71st
Toxic rank nationwide (1=worst) 92,403
Toxic percentile statewide (1=worst) 91st
Toxic rank statewide (1=worst) 2,271
Toxic Hazard 149.68
This school's air toxic concentration is 0.03 times the national average at schools.
This school's air toxic concentration is 0.15 times the state average at schools.
Top 5 facilities
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Top chemicals
Chemical Toxic Hazard
Cobalt 40.40
Chromium 34.74
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.) 31.22
Ethylene oxide 20.08
Nickel 6.67
Dicyclopentadiene 4.68
Maleic anhydride 2.53
Trichloroethylene 2.47
Lead 2.46
Antimony compounds 2.08
Acrylonitrile 0.61
Peracetic acid 0.54
Diisocyanates 0.25
Formaldehyde 0.19
Zinc compounds 0.18
Di(2-ethylhexyl) phthalate 0.17
Dichloromethane (Methylene chloride) 0.07
Butyl acrylate 0.06
Polycyclic aromatic compounds 0.05
Hydrogen fluoride (Hydrofluoric acid) 0.03
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.02
N,N-Dimethylformamide 0.02
Nitric acid 0.02
Hydrogen cyanide 0.01
1,2,4-Trimethylbenzene 0.01
Toluene diisocyanate (mixed isomers) 0.01
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.01
Phthalic anhydride 0.01
Copper 0.01
Acetonitrile 0.01
Lead compounds 0.01
Toluene 0.01
Styrene 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) 0.00
Pyridine 0.00
Methyl tert-butyl ether 0.00
Ethylene glycol 0.00
Methanol 0.00
Certain glycol ethers 0.00
n-Hexane (Hexane) 0.00
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.00
Acrylic acid 0.00
Ethyl acrylate 0.00
o-Xylene 0.00
Xylene (mixed isomers) 0.00
Methyl methacrylate 0.00
Phenol 0.00
Vinyl acetate 0.00
Silver compounds 0.00
Benzo[g,h,i]perylene 0.00
Acetophenone 0.00
Manganese 0.00
n-Butyl alcohol (1-Butanol) 0.00
Formic acid 0.00
3-Iodo-2-propynyl butylcarbamate 0.00
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 0.00
Cyanide compounds 0.00
Methyl isobutyl ketone 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
HITCHINER COUNTERGRAVITY CAST OPERATIONS (VCO/DCO/MCT) HITCHINER MANUFACTURING CO INC Cobalt 40.40
CHROMA COLOR CORP Arsenal Capital Partners 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.) 28.14
ISOMEDIX OPERATIONS INC. STERIS Ethylene oxide 20.08
PROTO LABS INC. PROTO LABS INC Chromium 15.18
PROTO LABS INC PROTO LABS INC Chromium 15.18
(click here to expand list to all chemicals from facilities)
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