Air Toxics at School 2022
School Info
School Maria Hastings
Street 7 Crosby Road
City Lexington
State MA
Number of students 598
Student % minority 66%
Type Regular School
Status 1
Level Elementary
Data Source CCD (public schools)
Air Toxics Info
Number of facilities affecting school 163
Number of chemicals affecting school 67
Toxic percentile nationwide (1=worst) 49th
Toxic rank nationwide (1=worst) 63,164
Toxic percentile statewide (1=worst) 50th
Toxic rank statewide (1=worst) 1,240
Toxic Hazard 688.87
This school's air toxic concentration is 0.14 times the national average at schools.
This school's air toxic concentration is 0.71 times the state average at schools.
Top 5 facilities
(click here to expand list to all facilities)
Top chemicals
Chemical Toxic Hazard
Cobalt 248.17
Chromium 204.28
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.) 92.85
Trichloroethylene 41.58
Ethylene oxide 27.13
Nickel compounds 18.66
Lead 16.18
Nickel 15.02
Chloroform 9.27
Diisocyanates 5.94
Benzene 3.57
Di(2-ethylhexyl) phthalate 1.71
Zinc compounds 1.16
Formaldehyde 0.68
Polycyclic aromatic compounds 0.59
Toluene diisocyanate (mixed isomers) 0.46
Antimony compounds 0.34
Naphthalene 0.19
Triethylamine 0.16
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.14
Copper 0.12
Ethylbenzene 0.12
Hydrogen fluoride (Hydrofluoric acid) 0.07
Xylene (mixed isomers) 0.07
Hydrogen cyanide 0.06
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.06
Lead compounds 0.04
N,N-Dimethylformamide 0.04
Dichloromethane (Methylene chloride) 0.03
Nitric acid 0.03
Certain glycol ethers 0.03
Toluene 0.02
o-Xylene 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
Acetonitrile 0.01
n-Hexane (Hexane) 0.01
Silver compounds 0.01
Toluene-2,4-diisocyanate 0.01
1,2,4-Trimethylbenzene 0.01
Pyridine 0.00
Ethylene glycol 0.00
Manganese 0.00
Aluminum (fume or dust) 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
Phenol 0.00
Methanol 0.00
Methyl tert-butyl ether 0.00
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.00
Methyl methacrylate 0.00
Mercury 0.00
Benzo[g,h,i]perylene 0.00
Cyclohexane 0.00
Styrene 0.00
Propylene oxide 0.00
Vinyl acetate 0.00
Sodium nitrite 0.00
3-Iodo-2-propynyl butylcarbamate 0.00
n-Butyl alcohol (1-Butanol) 0.00
Formic acid 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
TECOMET Charlesbank Capital Partners Cobalt 213.72
GE AVIATION General Electric Chromium 94.95
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.) 91.98
TECOMET Charlesbank Capital Partners Chromium 54.48
BOYD CORP INC. Goldman Sachs Trichloroethylene 41.58
(click here to expand list to all chemicals from facilities)
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