Air Toxics at School 2022
School Info
School ST MARK'S SCHOOL
Street 25 MARLBORO RD
City SOUTHBOROUGH
State MA
Number of students 375
Student % minority 53%
Data Source PSS (private schools)
Air Toxics Info
Number of facilities affecting school 166
Number of chemicals affecting school 78
Toxic percentile nationwide (1=worst) 55th
Toxic rank nationwide (1=worst) 70,543
Toxic percentile statewide (1=worst) 62nd
Toxic rank statewide (1=worst) 1,542
Toxic Hazard 502.90
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
(click here to expand list to all facilities)
Top chemicals
Chemical Toxic Hazard
Ethylene oxide 245.05
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.) 90.56
Cobalt 59.63
Chromium 58.47
Trichloroethylene 10.69
Nickel 9.33
Diisocyanates 6.12
Nickel compounds 5.19
Cadmium compounds 4.76
Lead 2.86
Chloroform 2.51
Antimony compounds 2.31
Maleic anhydride 1.13
Benzene 0.98
Toluene diisocyanate (mixed isomers) 0.53
Dicyclopentadiene 0.52
Di(2-ethylhexyl) phthalate 0.27
Chlorine 0.25
Zinc compounds 0.21
Formaldehyde 0.20
Polycyclic aromatic compounds 0.19
Dichloromethane (Methylene chloride) 0.18
Hydrogen fluoride (Hydrofluoric acid) 0.14
Acrylonitrile 0.12
Nitric acid 0.12
Peracetic acid 0.11
Copper 0.06
Xylene (mixed isomers) 0.05
Lead compounds 0.04
Naphthalene 0.04
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.03
Acetonitrile 0.03
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) 0.02
Certain glycol ethers 0.02
Ethylbenzene 0.02
Hydrogen cyanide 0.02
Pyridine 0.02
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.01
Triethylamine 0.01
Methyl tert-butyl ether 0.01
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.01
Butyl acrylate 0.01
Phenol 0.01
N,N-Dimethylformamide 0.01
Cyanide compounds 0.01
Toluene 0.01
Aluminum (fume or dust) 0.00
Phthalic anhydride 0.00
o-Xylene 0.00
Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) 0.00
Silver compounds 0.00
Ethylene glycol 0.00
Acetophenone 0.00
1,2,4-Trimethylbenzene 0.00
Methanol 0.00
n-Hexane (Hexane) 0.00
Styrene 0.00
Toluene-2,4-diisocyanate 0.00
Manganese 0.00
Vinyl acetate 0.00
Acrylic acid 0.00
Ethyl acrylate 0.00
Methyl methacrylate 0.00
Mercury 0.00
Formic acid 0.00
Silver 0.00
3-Iodo-2-propynyl butylcarbamate 0.00
Benzo[g,h,i]perylene 0.00
n-Butyl alcohol (1-Butanol) 0.00
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 0.00
Methyl isobutyl ketone 0.00
Cyclohexane 0.00
Cumene 0.00
Lithium carbonate 0.00
N-Methyl-2-pyrrolidone 0.00
Tetrabromobisphenol A 0.00
MIXTURE 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
ISOMEDIX OPERATIONS INC. STERIS Ethylene oxide 245.05
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.) 73.47
TECOMET Charlesbank Capital Partners Cobalt 55.06
GE AVIATION General Electric Chromium 21.87
TECOMET Charlesbank Capital Partners Chromium 14.03
(click here to expand list to all chemicals from facilities)
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