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(Click for frequent words.) 83 toxic substances 82 hazardous chemicals 79 harmful chemicals 78 toxins 74 chemicals 73 pollutants 73 toxics 71 toxic pollutants 70 poisonous chemicals 70 harmful toxins 70 contaminants 70 carcinogenic chemicals 69 hazardous substances 69 harmful substances 69 carcinogens 66 toxic 65 toxic wastes 65 harmful contaminants 64 pesticides 64 persistent bio accumulative 64 PCBs 63 suspected carcinogen 63 polychlorinated biphenyls PCBs 63 Toxic chemicals 63 volatile organic compounds 63 mercury 63 VOCs 63 toxic waste 63 toxic vapors 63 toxic pollutant 63 flame retardant chemicals 62 toxic flame retardants 62 noxious chemicals 62 toxic pesticides 62 PCBs dioxins 62 vinyl chloride 62 arsenic 62 harmful pollutants 61 benzene carcinogen 61 PCBs polychlorinated biphenyls 61 toxic dioxins 61 airborne toxins 61 solvents 61 toxicants 61 PFOAs 61 beryllium dust 60 chemical 60 pesticide 60 harmful vapors 60 crystalline silica 59 dioxins 59 hexavalent chromium 59 pollutant 59 carcinogenic dioxins 59 tetrachlorethylene 59 chlorine 59 contaminant 59 toxic solvents 59 toxic residues 59 hazardous waste 59 carcinogen benzene 59 trichlorethylene 59 Volatile Organic Compounds VOCs 58 carcinogen 58 pthalates 58 perchlorethylene 58 tetrachloroethene 58 toxin 58 DecaBDE 58 reproductive toxins 58 polychlorinated biphenyl 58 toxic byproducts 58 dioxin 58 carbon tetrachloride 58 carcinogenic pollutants 58 benzene 58 hazardous wastes 58 polychlorinated biphenyl PCB 57 mercury dioxins 57 toxic fumes 57 brominated flame retardants 57 PBDEs 57 cadmium mercury 57 PVC shower curtains 57 mercury arsenic 57 perfluorooctanoic acid PFOA 57 phthalates 57 hazardous vapors 57 synthetic musks 57 polluted groundwater 56 polychlorinated biphenyls 56 bioaccumulative 56 perfluorochemicals 56 triclocarban 56 chlorinated compounds 56 poisons 56 chlorinated solvents 56 PFOA 56 potent neurotoxin 56 harmful gases 56 solvent vapors 56 brominated flame retardants BFRs 56 decaBDE 56 pollution 56 deca BDE 56 trichlorethylene TCE 56 #,# Dioxane 56 fire retardants 56 TCE PCE 56 methyl chloride 56 Pollutants 56 reproductive toxicants 56 chlorine byproducts 56 elemental mercury 56 mercury vapors 56 polluting groundwater 56 PAHs polycyclic aromatic hydrocarbons 56 endocrine disrupting chemicals 55 polluted 55 trihalomethanes THMs 55 mercury potent neurotoxin 55 methyl mercury 55 radioactive materials 55 asbestos fibers 55 VOCs Volatile Organic Compounds 55 flame retardants 55 Asbestos fibers 55 harmful byproducts 55 harmful dioxins 55 bio accumulative 55 THMs 55 estrogenic chemicals 55 contaminents 55 methylene chloride 55 BFRs 55 cadmium arsenic 55 carcinogenic 55 #,# butadiene 55 neutralized VX 55 chemical vapors 55 Chromium VI 55 toxic gases 55 arsenic contaminated 55 dioxane 55 PBDE 55 cadmium 55 #,# dioxane 55 polybrominated diphenyl ether 54 perfluorochemicals PFCs 54 trichloroethane 54 trichloroethene 54 toxic gasses 54 pesticide residues 54 carcinogens mutagens 54 hydrocarbon vapors 54 perfluorinated compounds 54 hazardous solvents 54 lindane 54 toxaphene 54 arsenic cyanide 54 carcinogenic substances 54 toxic polychlorinated biphenyls 54 polyaromatic hydrocarbons 54 TCE trichlorethylene 54 PDBEs 54 microcystins 54 carcinogenic byproducts 54 dioxins PCBs 54 DDT dieldrin 54 pentachlorophenol 54 carcinogenic PCBs 54 Hazardous substances 54 perfluorinated chemicals 54 potentially carcinogenic 54 benzene toluene xylene 54 hazardous materials 54 DDT PCBs 54 Diesel exhaust 54 diesel particulates 54 CFCs chlorofluorocarbons 54 pollutants emitted 54 PPCPs 54 mercury pollution 54 potentially harmful 54 groundwater contamination 54 fracking fluids 54 organochlorine pesticides 54 neurotoxin 54 mercury emitted 54 Hexavalent chromium 54 degreasing solvent 53 contaminated 53 benzene arsenic 53 glycol ethers 53 groundwater contaminant 53 drywall emits 53 substances 53 Brominated flame retardants 53 perchlorate 53 particulates 53 radioactive material 53 tetrachlorethylene PCE 53 hormone disrupting 53 mercury contamination 53 air pollution 53 herbicide Atrazine 53 poisonous hydrogen sulphide 53 vinyl lunchboxes 53 contaminated soil 53 disinfection byproducts 53 fluorocarbons 53 harmful gasses 53 fracking fluid 53 Volatile Organic Compounds VOC 53 heptachlor 53 toxic hydrogen sulphide 53 ethyl acrylate 53 tributyl tin 53 phthalate 53 PCB contamination 53 endocrine disrupting compounds 53 mercury cadmium 53 phthalates chemicals 53 formaldehyde benzene 53 asbestos 53 chemical perchlorethylene 53 contaminating groundwater 53 pesticides flame retardants 53 incinerator ash 53 allyl alcohol 53 flammable corrosive 53 radioactive substances 52 contaminates 52 estrogenic compounds 52 metal degreasing 52 contaminated groundwater 52 radiological contaminants 52 cancer causer 52 contamination 52 organophosphate pesticide 52 arsenic selenium 52 potent carcinogen 52 Flame retardants 52 arsenic cadmium 52 Chlordane 52 carcinogenic benzene 52 Dioxins 52 engineered nanomaterials 52 hazardous fumes 52 naturally occurring arsenic 52 solvents pesticides 52 formaldehyde carcinogen 52 pesticide lindane 52 diesel exhaust 52 toxic mercury vapors 52 Dioxane 52 arsenic mercury 52 cadmium chromium 52 hydrofluoric acid 52 carcinogenic fumes 52 Vinyl chloride 52 chlordane 52 trichloroethene TCE 52 endocrine disrupting chemicals EDCs 52 Radioactive material 52 tremolite asbestos 52 polluting 52 chromium VI 52 benzene vapors 52 PFOS 52 airborne pollutants 52 Sodium cyanide 52 pesticide chlorpyrifos 52 harmful radiations 52 toxic effluents 52 TCE vapors 52 charcoal filters 52 bisphenol A. 52 chromium 51 organotins 51 noxious substances 51 #,#,# trichloroethane 51 poisonous substances 51 radioactive 51 hormone disruptors 51 dioxin concentrations 51 fluorotelomer 51 Triclosan 51 radioactive depleted uranium 51 chlorinated solvent 51 hydrogen sulfide 51 algal toxins 51 Shiranui Sea 51 Toxic Release Inventory 51 phosphine gas 51 organochlorines 51 arsenic benzene 51 sulfer 51 chloramine 51 chemical methyl isocyanate 51 PVC polyvinyl chloride 51 chlorinated pesticides 51 formaldehyde 51 sulfur trioxide 51 Volatile Organic Compounds 51 polynuclear aromatic hydrocarbons 51 smog forming pollution 51 hazardous 51 halogenated flame retardants 51 carcinogenic substance 51 Toxins 51 contaminated soils 51 dioxins furans 51 radionuclides 51 toxic hydrogen sulfide 51 friable asbestos 51 chemical compounds 51 outgas 51 perfluorooctane sulfonate PFOS 51 furans 51 radioactive contaminants 51 Polychlorinated Biphenyls 51 Trichloroethylene TCE 51 endocrine disruptors 51 pesticide residue 51 Polychlorinated biphenyls 51 chlorpyrifos 51 recyclable plastics 51 phosphorus 51 smog forming gases 51 Ozone disinfection produces 51 carcinogenic fibers 51 hydrochlorofluorocarbons HCFCs 51 smog forming pollutants 51 PBDEs polybrominated diphenyl ethers 51 toluene benzene 50 carcinogen dioxin 50 PCBs pesticides 50 methyl isocyanate 50 hexachlorobenzene HCB 50 foul smelling odor 50 childrens toys 50 smog forming compounds 50 radioactivity 50 unlined landfills 50 flammable chemicals 50 Volatile organic compounds 50 mercury chromium 50 hormone disrupter 50 lead mercury cadmium 50 para dichlorobenzene 50 Sodium hydroxide 50 thirdhand smoke 50 sulfur gasses 50 Brominated 50 corrosives 50 Hydrogen Sulfide 50 ozone depleting chemicals 50 mercury neurotoxin 50 brominated flame retardants BFR 50 airborne asbestos fibers 50 vapors 50 Zonolite insulation 50 amphibole asbestos 50 harmful pathogens 50 cleaning solvents 50 polybrominated 50 nitrogen trifluoride 50 contaminated sediments 50 flame retardants PBDEs 50 PFCAs 50 containing triclosan 50 organochlorine pesticide 50 nitrates phosphates 50 mercury selenium 50 poisonous gasses 50 airborne particulates 50 PCB polychlorinated biphenyls 50 sodium hydroxide 50 Phosgene 50 poisonous fumes 50 E.Coli bacteria 50 DuPont DeLisle plant 50 leaded gasoline 50 dichloroethylene 50 polybrominated diphenyl ethers 50 addictive nicotine 50 respiratory irritants 50 firefighting foams 50 mercury vapor 50 biphenyls 50 ethylbenzene 50 calcium sulfate component 50 PAHs 50 hydraulic fracturing fluids 50 vermiculite insulation 50 polybrominated diphenyl ethers PBDEs 50 fine particulates 50 persistent bioaccumulative 50 phosphorous 50 VOC emissions 50 PVC plastics 50 mercury PCBs 50 dioxin contaminated 49 chemical perfluorooctanoic acid PFOA 49 flammable solvents 49 halogenated compounds 49 biphenyls PCBs 49 groundwater contaminants 49 organophosphate exposure 49 diphenyl ethers 49 PFOA perfluorooctanoic acid 49 sodium hydrochloride 49 DEHA 49 fine particulate pollution 49 hexachlorobenzene 49 carcinogenic toxins 49 PVC BFRs 49 wastewater effluent 49 engineers AIChE SmartBrief 49 deadliest germs 49 noxious gasses 49 brominated flame retardant 49 industrial solvent trichlorethylene 49 organophosphate insecticides 49 elemental chlorine 49 hydrochloric acid 49 MtBE 49 chemically contaminated 49 air toxics 49 oxidized mercury 49 contaminate groundwater 49 sodium hydrosulfite 49 neurotoxins 49 noxious fumes 49 Dechlorane Plus 49 BTEX chemicals 49 neuro toxin 49 poisonous gases 49 HAAs 49 hazardous material 49 trace amounts 49 organophosphorous 49 solvent perchlorethylene 49 carcinogenic compounds 49 HBCD 49 nitrous oxides 49 chlorinated Tris 49 VOCs volatile organic compounds 49 chemical #,# butanediol 49 solvent trichlorethylene 49 perchlorethylene toxic 49 Hydrogen sulfide 49 airborne contaminants 49 raw untreated sewage 49 polluted stormwater 49 emit pollutants 49 Sulfuric acid 49 chlorinated flame retardants 49 nitrates 49 diesel fumes 49 ozone depleting substance 49 ozone depleting refrigerants 49 raw sewage 49 carcinogen hexavalent chromium 49 estrogen mimicking 49 spontaneously ignite 49 Methylmercury 49 insecticide chlorpyrifos 49 dichloroethane 49 polyvinyl chlorides 49 toxins leaching 49 methylmercury 49 powerful neurotoxin 49 carcinogenic polycyclic aromatic hydrocarbons 49 perfluorooctane sulfonate 49 silica dust 49 pesticides herbicides fungicides 49 azinphos methyl 49 ozone depleting substances 49 triclosan 49 sulfolane 49 hazardous waste disposal 49 insecticide malathion 49 Dioxin 49 degreasing agent 49 Elemental mercury 49 mimics estrogen 49 ammonia 49 radioactive radium 49 herbicide Agent Orange 49 bromine compounds 49 insecticide endosulfan 49 organophosphates 49 organochlorine 49 Teflon cookware 49 Carcinogens 49 hormone disrupters 49 solvent toluene 49 Sulphur dioxide 49 bioaccumulation 49 Deca BDE 49 organic pollutants POPs 49 gaseous pollutants 49 DBPs 49 carbon monoxide 49 DEHP 49 flammable vapors 49 Bunker Hill Superfund 49 Fumitoxin 49 particulate soot 49 effluents 49 sulfur dioxide 48 Chlorine dioxide 48 carcinogenic chemical 48 toxic fumes emitted 48 Contaminated soil 48 PBTs 48 Untreated sewage 48 potentially hazardous 48 Hydrogen Cyanide 48 Household cleaners 48 Zonyl 48 retardants 48 benzene toluene 48 caustic chemicals 48 harmful particulates 48 polybrominated diphenyl ether PBDE 48 sulfuric gases 48 ozone depleting CFCs 48 indoor radon 48 hormone mimicking 48 additive MTBE 48 Polychlorinated biphenyls PCBs 48 Methyl mercury 48 cyanide 48 chromium cadmium 48 tertiary butyl ether MTBE 48 cyanide arsenic 48 hydrogen chloride 48 fluorides 48 arsenic cadmium chromium 48 harmful 48 Radioactive substances 48 artificial sweetener saccharin 48 contaminate aquifers 48 noxious odors 48 vinyl shower curtains 48 organophosphate pesticides 48 chlorine bleaches 48 Corexit dispersant 48 Air fresheners 48 e coli bacteria 48 sulfur gases 48 carbon dioxide 48 noxious gases 48 chemical residues 48 Airplanes sprayed 48 inert ingredients 48 electromagnetic radiation EMR 48 household detergents 48 phosphogypsum 48 clogging landfills 48 2 butoxyethanol 48 deplete ozone 48 VOC Volatile Organic Compounds 48 PCBs DDT 48 arsenic chromium 48 methomyl 48 Tetrachloroethylene 48 nanosilver 48 Methyl bromide 48 Persistent Organic Pollutants POPs 48 probable carcinogens 48 nitrogen oxide pollution 48 dishwasher detergents 48 dichloroethene 48 Fecal bacteria 48 untreated sewage 48 groundwater 48 odorless colorless gas 48 mold spores 48 particulate matter 48 dyes insecticides 48 smokestack emissions 48 cargo sweepings 48 pollutions 48 cadmium barium 48 fecal coliform contamination 48 smokestack scrubbers 48 landfills 48 chlorine atoms 48 Contaminated groundwater 48 Septic tanks 48 chemical additives 48 cadmium hexavalent chromium 48 DINP 48 pathogenic micro organisms 48 tributyltin 48 sulfuric acid mist 48 toxic dispersants 48 microbial contaminants 48 chemical ammonium perfluorooctanoate 48 fumes 48 harmful bacteria 48 inorganic mercury 48 fracing fluids 48 lead cadmium arsenic 48 hexane 48 Inert ingredients 48 unhealthy trans fatty 48 phosgene 48 endocrine disrupting chemical 48 Polluted runoff 48 Inorganic arsenic 48 TTHMs 48 Perfluorinated chemicals 48 organophosphate insecticide 48 Toxic fumes 48 Sulfur compounds 48 vinyl chloride monomer 48 toluene solvent 48 phthalate DEHP 48 endotoxins 48 gaseous chlorine 48 microbiological organisms 48 Contaminants 48 cyanides 48 hormone disruptor 47 arsenic cadmium mercury 47 uncontrolled hazardous waste 47 fly ash 47 hydrocarbons carbon monoxide 47 polyvinyl chloride 47 household hazardous wastes 47 perfluorinated chemicals PFCs 47 petroleum distillates 47 polycyclic aromatic hydrocarbons 47 phosphorus pollution 47 pesticides herbicides 47 endrin 47 chemical perfluorooctanoic acid 47 polluted waterways 47 diazinon 47 tainted vermiculite 47 Carbon tetrachloride 47 reproductive toxicity 47 Lindane 47 combustion byproducts 47 degrease metal parts 47 penta BDE 47 residues 47 noxious 47 rat poisons 47 gender bending chemicals 47 fumes emitted 47 PBDE flame retardants 47 VX hydrolyzate 47 coal ash 47 Endocrine disruptors 47 biohazardous 47 unpleasant odors 47 flame retardant additives 47 Nitric acid 47 carbon dioxide CO2 47 ammonia nitrogen 47 additive methyl tertiary butyl 47 defoliant Agent Orange 47 herbicides pesticides 47 Hydrochloric 47 methyl isocyanate gas 47 ozone particulates 47 nanoproducts 47 halogenated 47 fragrances dyes 47 toxic solvent perchlorethylene 47 chlorine fumes 47 ecologically sensitive wetlands 47 Toxic Chemicals 47 Trichloroethylene 47 secondhand smoke 47 Athabasca watershed 47 radium naturally occurring 47 biohazards 47 harmful residues 47 atrazine 47 silver ions 47 sludge 47 hex chrome 47 antimony trioxide 47 chemical perchlorate 47 Chrysotile asbestos 47 BPA 47 carbon dioxides 47 aquatic organisms 47 contaminated sediment 47 toxicity 47 bacteria 47 furan 47 stain repellents 47 arsenic beryllium 47 Pesticides 47 mercury emissions 47 sediment dredged 47 dieldrin 47 chemical solvents 47 synthetic pesticides 47 environmentally harmful 47 Carbon monoxide CO 47 radioactively contaminated 47 fecal chloroform 47 chlorinated hydrocarbons 47 #,# dichloroethane 47 chemical flame retardants 47 TBBPA 47 depleted uranium 47 sodium dichromate 47 PCBs dioxin 47 disinfection byproducts DBPs 47 Effluents 47 PVC phthalates 47 inject slurry 47 engineered nanoparticles 47 polychlorinated PCBs 47 particulate pollution 47 contrast chlorine disinfection 47 human carcinogen 47 radioactive waste 47 polychlorinated 47 cadmium mercury hexavalent 47 Phthalates 47 gases 47 nonstick substance 47 releasing toxic fumes 47 poisonous chlorine 47 unlined pits 47 Norlite 47 chlorinated hydrocarbon 47 phthalates DEHP 47 hydrogen sulfide fumes 47 butter flavorings 47 Muriatic acid 47 dioxin PCBs 47 diethylene glycol DEG 47 methyl ethyl ketone 47 Polychlorinated Biphenyls PCBs 47 Serum phosphorus 47 pesticide aldicarb 47 mercury chromium cadmium 47 Improper disposal 47 creosote 47 coal tar 47 pollute 47 radioactive particles 47 chlorine disinfectant 47 bleach ammonia 47 dissolved solids 47 dredged sediment 47 Groundwater contamination 47 tailpipe exhaust 47 mercury DDT PCBs 47 harmful microorganisms 47 diesel particulate matter 47 fumigants 47 additives 47 polycyclic aromatic compounds 47 radioactive cesium 47 nonstick cookware 47 disinfectant byproducts 47 Untreated wastewater 46 chloride 46 acrolein 46 frack fluid 46 methyl chloroform 46 polycyclic aromatic hydrocarbons PAHs 46 particulate matter soot 46 sulfur compounds 46 Fecal coliform 46 Synthetic fertilizers 46 E coli bacteria 46 BPA phthalates 46 pesticide endosulfan 46 untreated effluent 46 groundwater plume 46 brominated flame retardant BFR 46 Environmental Protection Agency 46 arsenic barium 46 polluting waterways 46 putrid odors 46 PFCs 46 kiln dust 46 fracking chemicals 46 pollutes waterways 46 Latex paints 46 Agent Orange 46 Particulates 46 atrazine herbicide 46 smog forming 46 ozone depleting gases 46 industrial degreaser 46 Hydrochloric acid 46 polyaromatic hydrocarbons PAHs 46 ultrafine particles 46 Perchloroethylene 46 ozone particulate matter 46 contaminates drinking 46 hydrogen sulphide 46 airborne particles 46 potent greenhouse gas 46 Libby vermiculite 46 particulate pollutants 46 barium cadmium 46 polychlorinated biphenyls PCB 46 Odours 46 hydrogen cyanide HCN 46 vaccine preservative thimerosal 46 germs 46 Volatile Organic Compound VOC 46 ionic air purifiers 46 chromium contamination 46 barium chromium 46 sulfuryl fluoride 46 juglone 46 phosphates nitrates 46 bromate 46 transuranic wastes 46 clogging waterways 46 odorous gases 46 Nitrogen oxides 46 Secondhand smoke contains 46 pesticide poisonings 46 controversial chemical bisphenol 46 plastics fibers 46 soot pollution 46 nonylphenol 46 chromated copper arsenate 46 pollutant discharge 46 raw sewage discharges 46 poisonous carbon monoxide 46 ozone depleting 46 toxic mercury vapor 46 carbon monoxide hydrocarbons 46 aqueous ammonia 46 haloacetic acid 46 gasoline vapors 46 Polybrominated 46 toxicant 46 microscopic soot particles 46 radioactive tritium 46 glycol ether 46 Superfund hazardous waste 46 monoxide 46 chloramines 46 fracturing fluids 46 bisphenol 46 brominated flame 46 ethylene dibromide 46 TCE 46 nonhazardous waste 46 chemical C8 46 C. diff spores 46 chlorofluorocarbon 46 pesticides insecticides 46 Residues 46 airborne particulate matter 46 flammable methane 46 Bromate 46 endocrine disrupter 46 sulfuric compounds 46 aromatic amines 46 Halogenated 46 ODSs 46 mercury amalgam fillings 46 contaminate drinking 46 Hazardous wastes 46 soot particles 46 naturally occurring bacteria 46 toxic chemical bisphenol 46 acids solvents 46 xylenes 46 oily wastes 46 fireproofing chemicals 46 deadly neurotoxin 46 biphenyl 46 industrial effluents 46 ammonium perfluorooctanoate 46 sulfur dioxide pollution 46 chemical bromate 46 respiratory illnesses birth defects 46 Agent Orange defoliant 46 Safer Chemicals 46 chemical defoliant Agent Orange 46 chloroprene 46 bug repellants 46 MBTE 46 embalming fluids 46 nonylphenol ethoxylates 46 toxic alkaloids 46 perfluorooctanoate PFOA 46 produce briny wastewater 46 BTEX 46 tritium 46 Persistent Organic Pollutants 46 Polycyclic aromatic hydrocarbons 46 nitrous oxide emission 46 Corexit dispersants 46 herbicide residues 46 degreasing solvents 46 nitrogen oxides 46 compressed gasses 46 organic solvents 46 Ozone depleting 46 National Pollutant Release 46 gases emitted 46 toxic pesticide endosulfan 46 fluoride 46 hydrogen sulphide H2S 46 coal ash impoundments 46 flouride 46 chlorine bleaching 46 haloacetic acids 46 diesel particulate emissions 46 vermiculite ore 46 fluorinated specialty 46 environmentally hazardous substances 46 cadmium poisoning 46 Radioactive contamination 46 aerosol spray cans 46 chemcials 46 chemical malachite green 46 nitrogen oxides carbon monoxide 46 poisonous vapors 46 nitric acid 46 contaminating 46 greenhouse gasses 46 CO -2 46 greenhouse gases 46 gaseous byproducts 46 poisonous 46 radioactive wastes 46 chemical diethylene glycol 46 mercury dental fillings 46 dishwashing detergents 46 dioxin laced 46 MTBE 46 carbon monoxide particulate matter 45 diphenyl ether 45 methamidophos 45 depleted uranium weaponry 45 chemical mixtures 45 Greenhouse gasses 45 Agent Orange herbicide 45 xylene 45 SVHCs 45 methyl tert butyl ether 45 chemical leaches 45 inhalation hazard 45 n hexane 45 ozone pollution 45 metal cadmium 45 transuranic 45 detergents solvents 45 chlorofluorocarbons CFCs 45 melamine contaminant 45 butyl acetate 45 Ultrafine particles 45 waterborne parasites 45 bioaerosol 45 toluene 45 mercury amalgam 45 phosphor powder 45 obnoxious odors 45 petroleum hydrocarbons 45 Stachybotrys chartarum 45 briny wastewater 45 cigarette smoke 45 Bayou Verdine 45 plastic softeners 45 contaminate 45 DDVP 45 Sulfur dioxide 45 VOCs volatile 45 hexavalent chromium polybrominated biphenyls 45 aromatic hydrocarbons 45 DDT pesticide banned 45 phosphine 45 Cathode ray tubes 45 mercury thermostats 45 chlorine ammonia 45 endocrine disrupters 45 Polybrominated diphenyl ethers PBDEs 45 radiation 45 Carol Kraege 45 biomonitoring 45 fungus spores 45 biogenic amines occur 45 Chlorpyrifos 45 nitrogen oxide 45 benzene xylene