Air Toxics at School 2022
School Info
School ST JOHN SCHOOL Street 9 LEDYARD ST City WELLESLEY State MA Number of students 176 Student % minority 57% Data Source PSS (private schools)
Air Toxics Info
Number of facilities affecting school 178 Number of chemicals affecting school 70 Toxic percentile nationwide (1=worst) 55th Toxic rank nationwide (1=worst) 70,433 Toxic percentile statewide (1=worst) 62nd Toxic rank statewide (1=worst) 1,538 Toxic Hazard 505.35
This school's air toxic concentration is 0.10 times the national average at schools.
This school's air toxic concentration is 0.52 times the state average at schools.
Top 5 facilities
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Top chemicals
Chemical Toxic Hazard
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.) 148.71
Cobalt 132.65
Chromium 112.91
Ethylene oxide 39.24
Trichloroethylene 19.33
Nickel 12.94
Nickel compounds 8.83
Lead 7.15
Chloroform 6.23
Diisocyanates 5.77
Cadmium compounds 4.56
Benzene 2.37
Toluene diisocyanate (mixed isomers) 0.79
Di(2-ethylhexyl) phthalate 0.61
Formaldehyde 0.58
Polycyclic aromatic compounds 0.52
Zinc compounds 0.52
Antimony compounds 0.43
Chlorine 0.28
Copper 0.14
Xylene (mixed isomers) 0.11
Naphthalene 0.10
Hydrogen fluoride (Hydrofluoric acid) 0.07
Ethylbenzene 0.07
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.06
Lead compounds 0.05
Certain glycol ethers 0.05
Triethylamine 0.04
Dichloromethane (Methylene chloride) 0.04
Hydrogen cyanide 0.03
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.03
Nitric acid 0.03
N,N-Dimethylformamide 0.02
Acetonitrile 0.02
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
Toluene 0.01
n-Hexane (Hexane) 0.01
Pyridine 0.01
Cyanide compounds 0.01
o-Xylene 0.01
Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) 0.01
Silver compounds 0.00
1,2,4-Trimethylbenzene 0.00
Aluminum (fume or dust) 0.00
Phenol 0.00
Toluene-2,4-diisocyanate 0.00
Ethylene glycol 0.00
Manganese 0.00
Methyl tert-butyl ether 0.00
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.00
Methanol 0.00
Methyl methacrylate 0.00
Mercury 0.00
Silver 0.00
Styrene 0.00
Cyclohexane 0.00
Propylene oxide 0.00
Benzo[g,h,i]perylene 0.00
Vinyl acetate 0.00
3-Iodo-2-propynyl butylcarbamate 0.00
Formic acid 0.00
n-Butyl alcohol (1-Butanol) 0.00
Methyl isobutyl ketone 0.00
Cumene 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
Nonylphenol Ethoxylates 0.00
(click here to shrink list to only top 5 chemicals)
Top 5 chemicals from facilities
Facility Parent Company Chemical Toxic Hazard
CERTAINTEED LLC Saint-Gobain 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.) 144.00
TECOMET Charlesbank Capital Partners Cobalt 109.45
GE AVIATION General Electric Chromium 57.03
ISOMEDIX OPERATIONS INC. STERIS Ethylene oxide 39.24
TECOMET Charlesbank Capital Partners Chromium 27.90
(click here to expand list to all chemicals from facilities)
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Political Economy Research Institute
