Air Toxics at School 2022
School Info
School WALKER SCHOOL Street 1968 CENTRAL AVE City NEEDHAM State MA Number of students 72 Student % minority 61% Data Source PSS (private schools)
Air Toxics Info
Number of facilities affecting school 182 Number of chemicals affecting school 70 Toxic percentile nationwide (1=worst) 50th Toxic rank nationwide (1=worst) 64,773 Toxic percentile statewide (1=worst) 53rd Toxic rank statewide (1=worst) 1,313 Toxic Hazard 646.83
This school's air toxic concentration is 0.13 times the national average at schools.
This school's air toxic concentration is 0.66 times the state average at schools.
Top 5 facilities
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Top chemicals
Chemical Toxic Hazard
Cobalt 263.47
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.) 163.01
Chromium 116.79
Ethylene oxide 41.07
Trichloroethylene 14.68
Nickel 12.76
Nickel compounds 6.87
Cadmium compounds 6.18
Diisocyanates 5.21
Lead 5.19
Chloroform 3.97
Benzene 2.29
Toluene diisocyanate (mixed isomers) 1.09
Formaldehyde 0.80
Di(2-ethylhexyl) phthalate 0.66
Polycyclic aromatic compounds 0.56
Antimony compounds 0.51
Zinc compounds 0.38
Chlorine 0.37
Copper 0.15
Xylene (mixed isomers) 0.13
Naphthalene 0.09
Hydrogen fluoride (Hydrofluoric acid) 0.08
Certain glycol ethers 0.06
Ethylbenzene 0.06
Dichloromethane (Methylene chloride) 0.05
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.05
Nitric acid 0.04
Lead compounds 0.04
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) 0.03
Hydrogen cyanide 0.02
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.02
Triethylamine 0.02
N,N-Dimethylformamide 0.01
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.01
Cyanide compounds 0.01
Toluene 0.01
Pyridine 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
n-Hexane (Hexane) 0.01
Phenol 0.01
Silver compounds 0.00
1,2,4-Trimethylbenzene 0.00
Aluminum (fume or dust) 0.00
o-Xylene 0.00
Acetophenone 0.00
Methyl tert-butyl ether 0.00
Toluene-2,4-diisocyanate 0.00
Ethylene glycol 0.00
Manganese 0.00
Methanol 0.00
Mercury 0.00
Methyl methacrylate 0.00
Styrene 0.00
Silver 0.00
Propylene oxide 0.00
Cyclohexane 0.00
Benzo[g,h,i]perylene 0.00
Vinyl acetate 0.00
Formic acid 0.00
3-Iodo-2-propynyl butylcarbamate 0.00
Methyl isobutyl ketone 0.00
Cumene 0.00
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 0.00
n-Butyl alcohol (1-Butanol) 0.00
Benzoyl peroxide 0.00
Lithium carbonate 0.00
N-Methyl-2-pyrrolidone 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
DEPUY SYNTHES A JOHNSON & JOHNSON CO Johnson & Johnson Cobalt 159.83
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.) 158.09
TECOMET Charlesbank Capital Partners Cobalt 86.16
GE AVIATION General Electric Chromium 47.44
ISOMEDIX OPERATIONS INC. STERIS Ethylene oxide 41.07
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