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Air Toxics at School 2022

School Info

SchoolST LEO SCHOOL
Street120 MAIN ST
CityLEOMINSTER
StateMA
Number of students215
Student % minority41%
Data SourcePSS (private schools)

Air Toxics Info

Number of facilities affecting school102
Number of chemicals affecting school61
Toxic percentile nationwide (1=worst)70th
Toxic rank nationwide (1=worst)91,004
Toxic percentile statewide (1=worst)90th
Toxic rank statewide (1=worst)2,249
Toxic Hazard165.30

This school's air toxic concentration is 0.03 times the national average at schools.

This school's air toxic concentration is 0.17 times the state average at schools.

Top 5 facilities

FacilityParent CompanyToxic Hazard
HITCHINER COUNTERGRAVITY CAST OPERATIONS (VCO/DCO/MCT)HITCHINER MANUFACTURING CO INC47.44
CHROMA COLOR CORPArsenal Capital Partners39.59
ISOMEDIX OPERATIONS INC.STERIS21.56
PROTO LABS INC.PROTO LABS INC16.39
PROTO LABS INCPROTO LABS INC16.39

(click here to expand list to all facilities)

Top chemicals

ChemicalToxic 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.) 43.25
Cobalt39.68
Chromium37.57
Ethylene oxide21.56
Nickel6.61
Dicyclopentadiene4.29
Antimony compounds2.58
Trichloroethylene2.57
Lead 2.50
Maleic anhydride2.43
Acrylonitrile0.53
Peracetic acid0.46
Diisocyanates0.25
Formaldehyde0.20
Zinc compounds0.20
Di(2-ethylhexyl) phthalate0.18
Dichloromethane (Methylene chloride)0.07
Polycyclic aromatic compounds0.05
Butyl acrylate0.05
1,2,4-Trimethylbenzene0.04
Hydrogen fluoride (Hydrofluoric acid)0.03
Barium compounds (except for barium sulfate (CAS No. 7727-43-7))0.03
N,N-Dimethylformamide0.02
Nitric acid0.02
Hydrogen cyanide0.02
Toluene diisocyanate (mixed isomers)0.01
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)0.01
Copper0.01
Phthalic anhydride0.01
Lead compounds0.01
Acetonitrile0.01
Ethylene glycol0.01
Toluene0.01
Styrene0.00
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)0.00
Pyridine0.00
Methyl tert-butyl ether0.00
Methanol0.00
Certain glycol ethers0.00
n-Hexane (Hexane)0.00
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)0.00
o-Xylene0.00
Acrylic acid0.00
Ethyl acrylate0.00
Xylene (mixed isomers)0.00
Phenol0.00
Methyl methacrylate0.00
Vinyl acetate0.00
Silver compounds0.00
Benzo[g,h,i]perylene0.00
Acetophenone0.00
Manganese0.00
n-Butyl alcohol (1-Butanol)0.00
Formic acid0.00
3-Iodo-2-propynyl butylcarbamate0.00
Nitrate compounds (water dissociable; reportable only when in aqueous solution)0.00
Cyanide compounds0.00
Methyl isobutyl ketone0.00
Lithium carbonate0.00
N-Methyl-2-pyrrolidone0.00
Tetrabromobisphenol A0.00

(click here to shrink list to only top 5 chemicals)

Top chemicals from facilities

FacilityParent CompanyChemicalToxic Hazard
HITCHINER COUNTERGRAVITY CAST OPERATIONS (VCO/DCO/MCT)HITCHINER MANUFACTURING CO INCCobalt39.68
CHROMA COLOR CORPArsenal Capital PartnersChromium 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.) 39.59
ISOMEDIX OPERATIONS INC.STERISEthylene oxide21.56
PROTO LABS INC.PROTO LABS INCChromium16.39
PROTO LABS INCPROTO LABS INCChromium16.39
HITCHINER COUNTERGRAVITY CAST OPERATIONS (VCO/DCO/MCT)HITCHINER MANUFACTURING CO INCNickel5.93
ADVANCE COATINGS COADVANCE COATINGS CODicyclopentadiene4.29
AVIENT COLORANTS USA LLC - HOLDEN FACILITYAvient CorporationChromium 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.) 3.67
LS STARRETT COMiddleGround CapitalTrichloroethylene2.57
ADVANCE COATINGS COADVANCE COATINGS COMaleic anhydride2.43
PACE INDUSTRIES - CAMBRIDGE DIVPace IndustriesLead 2.40
INNER-TITE CORP.INNER-TITE CORP.Chromium2.07
HITCHINER COUNTERGRAVITY CAST OPERATIONS (VCO/DCO/MCT)HITCHINER MANUFACTURING CO INCChromium1.83
MEXICHEM SPECIALTY COMPOUNDSOrbia Advance CorporationAntimony compounds1.74
S&E SPECIALTY POLYMERS LLCNautic PartnersAntimony compounds0.65
OMNOVA SOLUTIONSSynthomerAcrylonitrile0.53
KOMTEK FORGE LLCCrawford UnitedChromium0.48
NEWARK AMERICAGreif Inc.Peracetic acid0.46
COORSTEK IGNITER PRODUCTSCOORSTEK INCNickel0.33
METSO AUTOMATION USA INCValmet OyjChromium0.29
KOMTEK FORGE LLCCrawford UnitedNickel0.24
WORTHEN INDUSTRIES INC UPACO DIVWorthen IndustriesDiisocyanates0.24
AMPHENOL APC INCAmphenolFormaldehyde0.19
NYACOL NANOTECHNOLOGIES INCNYACOL NANOTECHNOLOGIES INCAntimony compounds0.19
ENTEGRIS INCEntegrisDi(2-ethylhexyl) phthalate0.18
PACE INDUSTRIES - CAMBRIDGE DIVPace IndustriesZinc compounds0.17
WYMAN-GORDON COBerkshire HathawayNickel0.08
WYMAN-GORDON COBerkshire HathawayChromium0.06
VERANOVA L.P.Altaris Capital PartnersDichloromethane (Methylene chloride)0.06
WHIPPS INCWHIPPS INCChromium0.06
OMNOVA SOLUTIONSSynthomerButyl acrylate0.05
INTERNATIONAL RECTIFIER HIREL PRODUCTS INC.Infineon TechnologiesLead 0.04
US PACK INCUS PACK INC1,2,4-Trimethylbenzene0.04
PHOTOFABRICATION ENGINEERING I NCTHE PARTNER COS LLCHydrogen fluoride (Hydrofluoric acid)0.03
S&E SPECIALTY POLYMERS LLCNautic PartnersBarium compounds (except for barium sulfate (CAS No. 7727-43-7))0.03
COLT REFINING INCCOLT REFINING INCLead 0.03
HOLCIM - NER INC.Holcim GroupPolycyclic aromatic compounds0.03
BENCHMARK ELECTRONICS NH DIVBenchmark ElectronicsLead 0.02
TEKNOR APEX ELASTOMERS INC.TEKNOR APEXZinc compounds0.02
VIBRAM CORPVIBRAM USADiisocyanates0.02
PANDOLF PERKINS COEH PERKINS CONSTRUCTION INCPolycyclic aromatic compounds0.02
EMD MILLIPORE CORPMerck KGaA (EMD)Dichloromethane (Methylene chloride)0.02
AVCARB MATERIAL SOLUTIONSArsenal Capital PartnersHydrogen cyanide0.02
MAJILITE MANUFACTURING INCMERIDIAN INDUSTRIES INCN,N-Dimethylformamide0.01
SPECIALTY MATERIALS INC.Global MaterialsHydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)0.01
METSO AUTOMATION USA INCValmet OyjNickel0.01
WORTHEN INDUSTRIES INC UPACO DIVWorthen IndustriesToluene diisocyanate (mixed isomers)0.01
SEAMAN PAPER CO. OF MASSACHUSETTS INC.SEAMAN PAPER CO. OF MASSACHUSETTS INC.Polycyclic aromatic compounds0.01
PHOTOFABRICATION ENGINEERING I NCTHE PARTNER COS LLCNitric acid0.01
WORTHEN INDUSTRIES INC UPACO DIVWorthen IndustriesAntimony compounds0.01
WYMAN-GORDON COBerkshire HathawayNickel0.01
HARCROS CHEMICALS INCHarcros ChemicalsNitric acid0.01
ADVANCE COATINGS COADVANCE COATINGS COPhthalic anhydride0.01
NITTO DENKO AVECIA INC.Nitto DenkoAcetonitrile0.01
PACE INDUSTRIES - CAMBRIDGE DIVPace IndustriesCopper0.01
WHIPPS INCWHIPPS INCNickel0.01
ADVANCE COATINGS COADVANCE COATINGS COStyrene0.00
ROHM & HAAS ELECTRONIC MATERIALS LLCDuPont de NemoursFormaldehyde0.00
US PACK INCUS PACK INCEthylene glycol0.00
IDEAL TAPE COAmerican BiltriteToluene0.00
NITTO DENKO AVECIA INC.Nitto DenkoPyridine0.00
VERANOVA L.P.Altaris Capital PartnersMethyl tert-butyl ether0.00
BRADFORD INDUSTRIESWembly EnterprisesN,N-Dimethylformamide0.00
HIGHLINE WARREN LLCPritzker GroupMethanol0.00
MEXICHEM SPECIALTY COMPOUNDSOrbia Advance CorporationLead compounds0.00
ALLCOAT TECHNOLOGY INCALLCOAT TECHNOLOGY INCToluene diisocyanate (mixed isomers)0.00
MEXICHEM SPECIALTY COMPOUNDSOrbia Advance CorporationZinc compounds0.00
AMPHENOL APC INCAmphenolCertain glycol ethers0.00
CIRCUIT CONNECT INCInfinitumAmmonia (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)0.00
HOLLINGSWORTH & VOSE CO WEST GROTONHOLLINGSWORTH & VOSE COAmmonia (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)0.00
AMPHENOL APC INCAmphenolSulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)0.00
NEWARK AMERICAGreif Inc.Lead 0.00
HAARTZ CORPHAARTZ CORPo-Xylene0.00
UNIVAR SOLUTIONS USA INC. - TEWKSBURY MAApollo Global ManagementN,N-Dimethylformamide0.00
OMNOVA SOLUTIONSSynthomerAcrylic acid0.00
STRAUMANN MANUFACTURING INCSTRAUMANN MANUFACTURING INCn-Hexane (Hexane)0.00
S&E SPECIALTY POLYMERS LLCNautic PartnersLead 0.00
BRONZE CRAFT CORPBRONZE CRAFT CORPCopper0.00
EDWARDS VACUUM LLCAtlas CopcoLead 0.00
OMNOVA SOLUTIONSSynthomerEthyl acrylate0.00
S&E SPECIALTY POLYMERS LLCNautic PartnersZinc compounds0.00
DAV-TECH PLATING INC.DAV-TECH PLATING INC.Nitric acid0.00
BROX INDUSTRIES INCBrox IndustriesLead 0.00
MARMON UTILITY LLCBerkshire HathawayCopper0.00
AMERICAN SUPERCONDUCTORAmerican Superconductor Corp.Lead compounds0.00
ICP CONSTRUCTIONCPC HOLDING LLCEthylene glycol0.00
MORGAN ADVANCED CERAMICS INCMorgan Advanced MaterialsHydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)0.00
HOLDEN TRAP ROCKMA BROKEN STONE COPolycyclic aromatic compounds0.00
SAINT-GOBAIN ABRASIVES & SAINT -GOBAIN CERAMICS & PLASTICSSaint-GobainLead compounds0.00
WORTHEN INDUSTRIESWorthen IndustriesToluene0.00
CHROMA COLOR CORPArsenal Capital PartnersZinc compounds0.00
JG MACLELLAN CONCRETE CO INCJG MACLELLAN CONCRETE CO INCLead compounds0.00
SAINT-GOBAIN ABRASIVES & SAINT -GOBAIN CERAMICS & PLASTICSSaint-GobainAmmonia (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)0.00
IDEAL TAPE COAmerican Biltriten-Hexane (Hexane)0.00
FLEXCON CO INC.FLEXCON HOLDINGS TRUSTXylene (mixed isomers)0.00
NYACOL NANOTECHNOLOGIES INCNYACOL NANOTECHNOLOGIES INCLead compounds0.00
SAINT-GOBAIN ABRASIVES & SAINT -GOBAIN CERAMICS & PLASTICSSaint-GobainPhenol0.00
BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATIONBAE SystemsLead 0.00
PEXCO LLCOdyssey Investment PartnersDi(2-ethylhexyl) phthalate0.00
JG MACLELLAN CONCRETE CO INCJG MACLELLAN CONCRETE CO INCLead compounds0.00
ADVANCE COATINGS COADVANCE COATINGS COMethyl methacrylate0.00
LEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSLEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSFormaldehyde0.00
SAEILO ENTERPRISESSAEILO ENTERPRISES INCLead 0.00
INNER-TITE CORP.INNER-TITE CORP.Lead 0.00
WORTHEN INDUSTRIES INC UPACO DIVWorthen IndustriesN,N-Dimethylformamide0.00
BENJAMIN MOORE & CO-MILFORDBerkshire HathawayZinc compounds0.00
FLEXCON CO INC.FLEXCON HOLDINGS TRUSTVinyl acetate0.00
CIRTRONICS CORPCIRTRONICS CORPLead 0.00
NYACOL NANOTECHNOLOGIES INCNYACOL NANOTECHNOLOGIES INCNitric acid0.00
GRANITE STATE CONCRETE CO INC WESTFORDJG MACLELLAN CONCRETE CO INCLead compounds0.00
RAYTHEON CORTX CorporationLead 0.00
ADVANCE COATINGS COADVANCE COATINGS COEthylene glycol0.00
AMPHENOL APC INCAmphenolHydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)0.00
HOLCIM - NER INC.Holcim GroupLead compounds0.00
COLT REFINING INCCOLT REFINING INCCopper0.00
BIOSYNTH INTERNATIONAL INC.KKR & Co.Acetonitrile0.00
DUXBURY COMPOSITE PRODUCTS DBA PLP COMPOSITESDUXBURY COMPOSITE PRODUCTS DBA PLP COMPOSITESStyrene0.00
FLEXCON CO INC.FLEXCON HOLDINGS TRUSTToluene0.00
INTERVALA LLCIntervalaLead 0.00
AMPHENOL APC INCAmphenolNitric acid0.00
SAINT-GOBAIN ABRASIVES & SAINT -GOBAIN CERAMICS & PLASTICSSaint-GobainEthylene glycol0.00
BRADFORD INDUSTRIESWembly EnterprisesToluene0.00
WORTHEN INDUSTRIES INC UPACO DIVWorthen Industriesn-Hexane (Hexane)0.00
UNIVAR SOLUTIONS USA INC. - TEWKSBURY MAApollo Global ManagementXylene (mixed isomers)0.00
SUPERCON INCSUPERCON INCNitric acid0.00
WORTHEN INDUSTRIES INC UPACO DIVWorthen IndustriesXylene (mixed isomers)0.00
BENJAMIN MOORE & CO-MILFORDBerkshire HathawayXylene (mixed isomers)0.00
WORTHEN INDUSTRIES INC UPACO DIVWorthen IndustriesToluene0.00
COLT REFINING INCCOLT REFINING INCSilver compounds0.00
PARKER HANNIFIN CORP CHOMERICS DIVParker-HannifinToluene0.00
PLATING FOR ELECTRONICS INC.PLATING FOR ELECTRONICS INC.Nitric acid0.00
DAUPHINAIS CONCRETEDAUPHINAIS CONCRETE INCLead 0.00
OMNOVA SOLUTIONSSynthomerMethyl methacrylate0.00
THERMO FISHER SCIENTIFICThermo Fisher ScientificMethanol0.00
VERANOVA L.P.Altaris Capital PartnersMethanol0.00
INDUSTRIAL POLYMERS & CHEMICAL S INCINDUSTRIAL POLYMERS & CHEMICAL S INCPhenol0.00
SEAMAN PAPER CO. OF MASSACHUSETTS INC.SEAMAN PAPER CO. OF MASSACHUSETTS INC.Benzo[g,h,i]perylene0.00
OMNOVA SOLUTIONSSynthomerStyrene0.00
MAJILITE MANUFACTURING INCMERIDIAN INDUSTRIES INCToluene0.00
UNIVAR SOLUTIONS USA INC. - TEWKSBURY MAApollo Global ManagementToluene0.00
RIVERDALE MILLS CORPRIVERDALE MILLS CORPZinc compounds0.00
FLEXCON CO INC.FLEXCON HOLDINGS TRUSTn-Hexane (Hexane)0.00
RYMES - HUDSONSUPERIOR PLUS CORPPolycyclic aromatic compounds0.00
AVIENT COLORANTS USA LLC - HOLDEN FACILITYAvient CorporationZinc compounds0.00
ENTEGRIS INCEntegrisMethanol0.00
NITTO DENKO AVECIA INC.Nitto DenkoToluene0.00
BIOSYNTH INTERNATIONAL INC.KKR & Co.N,N-Dimethylformamide0.00
UNITED COUNTY INDUSTRIESUNITED COUNTY INDUSTRIESAmmonia (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)0.00
LEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSLEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSPhenol0.00
MARMON UTILITY LLCBerkshire HathawayAcetophenone0.00
UNIVAR SOLUTIONS USA INC. - TEWKSBURY MAApollo Global ManagementMethanol0.00
TELEDYNE FLIR SURVEILLANCETeledyne TechnologiesLead 0.00
BENJAMIN MOORE & CO-MILFORDBerkshire HathawayVinyl acetate0.00
BROX INDUSTRIES INCBrox IndustriesBenzo[g,h,i]perylene0.00
NYACOL NANOTECHNOLOGIES INCNYACOL NANOTECHNOLOGIES INCEthylene glycol0.00
WHIPPS INCWHIPPS INCManganese0.00
HOLDEN TRAP ROCKMA BROKEN STONE COBenzo[g,h,i]perylene0.00
THERMO FISHER SCIENTIFICThermo Fisher ScientificMethanol0.00
ALLCOAT TECHNOLOGY INCALLCOAT TECHNOLOGY INCN,N-Dimethylformamide0.00
WORTHEN INDUSTRIES INC UPACO DIVWorthen Industriesn-Butyl alcohol (1-Butanol)0.00
GVS N.A.GVS GroupFormic acid0.00
BENJAMIN MOORE & CO-MILFORDBerkshire Hathaway3-Iodo-2-propynyl butylcarbamate0.00
SAINT GOBAIN PERFORMANCE PLASTICSSaint-GobainXylene (mixed isomers)0.00
LEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSLEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSMethanol0.00
LEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSLEWCOTT CORP D/B/A BARRDAY COMPOSITE SOLUTIONSToluene0.00
AOTCO METAL FINISHING LLCAOTCO METAL FINISHING LLCNitric acid0.00
LS STARRETT COMiddleGround CapitalMethanol0.00
SAFETY-KLEEN SYSTEMS MARLBOROUGH (MRB)Clean Harbors Inc.Ethylene glycol0.00
BROX INDUSTRIES INCBrox IndustriesPolycyclic aromatic compounds0.00
BROX INDUSTRIES INCBrox IndustriesBenzo[g,h,i]perylene0.00
OLDCASTLE APG NEW ENGLANDCRH PLCLead compounds0.00
DAUPHINAIS CONCRETEDAUPHINAIS CONCRETE INCNitrate compounds (water dissociable; reportable only when in aqueous solution)0.00
ANIKA THERAPEUTICSAnika TherapeuticsMethanol0.00
RYMES - HUDSONSUPERIOR PLUS CORPBenzo[g,h,i]perylene0.00
NEW METHOD PLATING CO.,INC.NEW METHOD PLATING CO.,INC.Cyanide compounds0.00
SAINT GOBAIN PERFORMANCE PLASTICSSaint-GobainMethyl isobutyl ketone0.00
BROX INDUSTRIES INCBrox IndustriesPolycyclic aromatic compounds0.00
NEW HAMPSHIRE BALL BEARINGS INCMinebeaMitsumiMethanol0.00
SAINT GOBAIN PERFORMANCE PLASTICSSaint-GobainToluene0.00
EMD MILLIPORE CORPMerck KGaA (EMD)Methanol0.00
GVS N.A.GVS GroupN-Methyl-2-pyrrolidone0.00
CYTIVADanaherN-Methyl-2-pyrrolidone0.00
SAINT-GOBAIN ABRASIVES & SAINT -GOBAIN CERAMICS & PLASTICSSaint-GobainLithium carbonate0.00
ROHM & HAAS ELECTRONIC MATERIALS LLCDuPont de NemoursN-Methyl-2-pyrrolidone0.00
SARTORIUS STEDIM 450 DLBSARTORIUS STEDIM BIOTECHN-Methyl-2-pyrrolidone0.00
CURIA MASSACHUSETTS INC.AledadeN-Methyl-2-pyrrolidone0.00
RAYTHEON CORTX CorporationN-Methyl-2-pyrrolidone0.00
MACOM TECHNOLOGY SOLUTIONS INCM/A-COM TECHNOLOGY SOLUTIONS HOLDINGSN-Methyl-2-pyrrolidone0.00
ALLCOAT TECHNOLOGY INCALLCOAT TECHNOLOGY INCN-Methyl-2-pyrrolidone0.00
CL HAUTHAWAY & SONS CORPCL HAUTHAWAY & SONS CORPN-Methyl-2-pyrrolidone0.00
PARKER HANNIFIN CORP CHOMERICS DIVParker-HannifinTetrabromobisphenol A0.00
WORTHEN INDUSTRIES INC UPACO DIVWorthen IndustriesN-Methyl-2-pyrrolidone0.00
BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATIONBAE SystemsN-Methyl-2-pyrrolidone0.00
EMD MILLIPORE CORPMerck KGaA (EMD)N-Methyl-2-pyrrolidone0.00

(click here to shrink list to only top 5 chemicals from facilities)

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Political Economy Research Institute
Gordon Hall, 418 N. Pleasant St., Suite A, Amherst, MA 01002
Tel: 413-545-6355    Fax: 413-577-0261    Contact: peri@peri.umass.edu
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2025