Air Toxics at School 2022
School Info
School Charles D Harrington Street 120 Richardson Rd City North Chelmsford State MA Number of students 471 Student % minority 44% Type Regular School Status 1 Level Elementary Data Source CCD (public schools)
Air Toxics Info
Number of facilities affecting school 142 Number of chemicals affecting school 67 Toxic percentile nationwide (1=worst) 60th Toxic rank nationwide (1=worst) 78,114 Toxic percentile statewide (1=worst) 79th Toxic rank statewide (1=worst) 1,979 Toxic Hazard 351.19
This school's air toxic concentration is 0.07 times the national average at schools.
This school's air toxic concentration is 0.36 times the state average at schools.
Top 5 facilities
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Top chemicals
Chemical Toxic Hazard
Chromium 159.11
Cobalt 92.81
Hydrazine 28.76
Ethylene oxide 17.89
Lead 15.17
Trichloroethylene 9.67
Nickel 8.20
Nickel compounds 4.40
Diisocyanates 3.95
Chloroform 2.81
Polycyclic aromatic compounds 1.83
Benzene 1.25
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.) 1.08
Zinc compounds 1.06
Formaldehyde 0.66
Antimony compounds 0.38
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.33
Maleic anhydride 0.29
Hydrogen cyanide 0.28
Di(2-ethylhexyl) phthalate 0.22
Toluene diisocyanate (mixed isomers) 0.18
Dicyclopentadiene 0.14
N,N-Dimethylformamide 0.13
Toluene 0.11
Copper 0.07
Naphthalene 0.07
Lead compounds 0.05
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0.04
Ethylbenzene 0.04
Triethylamine 0.03
Acrylonitrile 0.03
Dichloromethane (Methylene chloride) 0.03
Peracetic acid 0.03
n-Hexane (Hexane) 0.03
Nitric acid 0.02
Certain glycol ethers 0.01
Hydrogen fluoride (Hydrofluoric acid) 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
Xylene (mixed isomers) 0.01
o-Xylene 0.01
Ethylene glycol 0.00
Butyl acrylate 0.00
Silver compounds 0.00
1,2,4-Trimethylbenzene 0.00
Toluene-2,4-diisocyanate 0.00
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 0.00
Methyl tert-butyl ether 0.00
Phthalic anhydride 0.00
Manganese 0.00
Acetonitrile 0.00
Methanol 0.00
Methyl methacrylate 0.00
Styrene 0.00
Benzo[g,h,i]perylene 0.00
Phenol 0.00
Acrylic acid 0.00
Ethyl acrylate 0.00
Cyclohexane 0.00
n-Butyl alcohol (1-Butanol) 0.00
Sodium nitrite 0.00
Methyl isobutyl ketone 0.00
Acetophenone 0.00
Formic acid 0.00
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 0.00
Benzoyl peroxide 0.00
N-Methyl-2-pyrrolidone 0.00
Tetrabromobisphenol A 0.00
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Top 5 chemicals from facilities
Facility Parent Company Chemical Toxic Hazard
TECOMET Charlesbank Capital Partners Cobalt 62.53
GE AVIATION General Electric Chromium 50.82
PROTO LABS INC. PROTO LABS INC Chromium 39.95
PROTO LABS INC PROTO LABS INC Chromium 39.95
UNION SPECIALTIES INC UNION SPECIALTIES INC Hydrazine 28.76
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