Related by context. All words. (Click for frequent words.) 69 Contaminated 68 contamination 63 Contaminants 59 contaminated 57 Contaminant 57 contaminant 55 Spillage 55 groundwater contamination 55 Contaminating 55 E. Coli 54 contaminants 54 Pollutants 54 tetrachlorethylene PCE 54 Water Contamination 54 Hexavalent Chromium 53 Radioactive contamination 53 Leakage 53 Dioxin 53 Pollution 53 TCE contamination 52 Bacteria Found 52 polluted groundwater 52 Contaminated Soil 52 Melamine Contamination 52 algal toxins 52 PCB contamination 52 E. Coli O# H7 52 Contaminates 52 Trichloroethylene TCE 52 trichlorethylene TCE 52 contaminations 52 toxaphene 51 TCE PCE 51 Residues 51 Groundwater contamination 51 Nitrates 51 dieldrin 51 Toxic Gases 51 Polluted 51 Nitrate 51 heptachlor 51 tetrachloroethene PCE 51 Radioactive Iodine 51 Chlordane 51 Odours 51 trichloroethene TCE 51 groundwater contaminant 51 TCE trichlorethylene 51 E.coli contamination 51 Tainted 51 Toxins 51 nitrate contamination 50 trichloroethene 50 E.Coli 50 arsenic contamination 50 Chemical Spill 50 Allergens 50 Carcinogen 50 E coli bacteria 50 Bacteria 50 bacterial contamination 50 groundwater contaminants 50 Mycotoxins 50 Possible E. Coli 50 Dioxane 50 Listeria Monocytogenes 49 Seepage 49 Trichloroethylene 49 Coliform 49 Salmonella Contamination 49 Detectable 49 Dioxins 49 Cyanobacteria 49 Chlorinated 49 Chlorination 49 Toxin 49 vapor intrusion 49 Seeps 49 PCBs polychlorinated biphenyls 49 Methylmercury 49 Salmonella Outbreak 49 Diacetyl 49 Hydrogen Sulfide 49 Nitrate contamination 49 Bacterial Contamination 49 Contaminate 49 Palos Verdes Shelf 49 Cancer Causing 49 Sewage Spill 49 Ecoli 49 E Coli 49 DDT pesticide banned 49 E coli contamination 48 Chromium VI 48 e coli contamination 48 tetrachloroethene 48 Raw Sewage 48 Mycotoxin 48 Polychlorinated biphenyls 48 Polychlorinated biphenyls PCBs 48 Acrylamide 48 Disinfecting 48 Radiation 48 Pesticide Testing 48 Pollutes 48 dichloroethylene 48 perchlorate plume 48 spore forming bacteria 48 contaminating 48 Tainted Spinach 48 Arsenic 48 E. Coli Contamination 48 Contaminated groundwater 48 Toxic Spill 48 Ammonia Leak 48 perchlorate contamination 48 Spinach E. Coli 48 contaminate 48 Leak Shuts Down 48 Tainted Beef 48 Arsenic Levels 47 naturally occurring arsenic 47 Substance Found 47 listeria monocytogenes bacteria 47 genotoxic substance 47 Manure Spill 47 coliform contamination 47 degreasing agent 47 Rat Poison 47 PCBs dioxin 47 Poisonings 47 Polychlorinated Biphenyls 47 Perchlorate 47 ecoli 47 E. Coli Outbreak 47 Foul Smell 47 Toxic Fumes 47 polluting groundwater 47 Carbon Monoxide 47 Contaminant Found 47 Scare Prompts 47 chlorinated solvent 47 Naturally Occurring 47 Bacterium 47 Radiation Levels 47 Sodium Hydroxide 47 naturally occurring bacterium 47 Lettuce Recall 47 Hydrochloric Acid 47 Salmonella Outbreaks 47 Virus Outbreak 47 Antibiotic Use 47 Methane Gas 47 Tritium 47 toxicosis 47 Leak Causes 47 Beef Recall 47 dechlorinated 47 Polluted Water 47 Salmonella 47 Worse Than Thought 47 industrial solvent trichlorethylene 47 bacteria listeria monocytogenes 47 Intestinal Bacteria 47 Algae Bloom 47 Carcinogenic 47 Infestations 47 Infections 47 Aflatoxin 46 Hepatitis Outbreak 46 flame retardants PBDEs 46 antibiotic residues 46 Odors 46 E. Coli contamination 46 Toxic Chemical 46 contaminate groundwater 46 contaminated groundwater 46 Ground Beef Recalled 46 microbiological contamination 46 Bacterial contamination 46 groundwater plume 46 Superfund Sites 46 shallow aquifers 46 Taco Bell E. Coli 46 fecal coliform bacteria 46 Radioactivity 46 food borne pathogen 46 perfluorochemicals PFCs 46 fecal contamination 46 Diesel Spill 46 Groundwater Remediation 46 asbestos contamination 46 Allergic Reactions 46 nitrate nitrogen 46 Tetrachloroethylene 46 Outbreak Linked 46 Sludge 46 E. Coli Found 46 Toxicity 46 e.Coli 46 Radioactive 46 trichlorethylene 46 E. Coli Bacteria 46 Bird Flu Strain 46 harmful contaminants 46 Salmonella Poisoning 46 Fecal coliform bacteria 46 contaminates 46 Toxic chemicals 46 perfluorinated compounds 46 Microbial 46 benzene toluene xylene 46 Perchlorate contamination 46 Oxidation 46 mercury contamination 46 Harmful Bacteria 46 Potentially Deadly 46 Enterococci 46 perfluorochemicals 46 Acidic 46 bacterium Listeria monocytogenes 46 E.coli bacteria 46 Staph Infections 46 cancer causer 46 Toxic Dump 46 Potentially Harmful 46 E. coli Outbreak 46 Toxic Chemicals 46 Hexavalent chromium 46 Microbiological 46 Flu Virus 46 E. Coli bacteria 46 Turbidity 46 endrin 46 Contaminated soil 46 Chemical Leak 46 Infection 46 E. Coli Cases 46 Spinach Recall 46 Dangerous Bacteria 46 Radiation Detected 46 Isolates 46 Escherichia Coli 46 Mislabeling 46 Wyle Labs 45 Dieldrin 45 Fecal coliform 45 Radiation Leak 45 Dispersant 45 bioaccumulation 45 Pipeline Explosion 45 arsenic benzene 45 faecal contamination 45 aquatic toxicity 45 fecal coliform contamination 45 Lead Contamination 45 Plant Explosion 45 Drain Cleaner 45 Aflatoxins 45 Occupational Exposure 45 E. coli 45 Superfund site 45 Sewage spills 45 Biofuel Production 45 Peanut Butter Recall 45 spore forming bacterium 45 inorganic contaminants 45 Stormwater Runoff 45 contaminents 45 dioxin PCBs 45 E.coli 45 organochlorine pesticide 45 Plastic Bottles 45 Ethanol Production 45 Anthrax Ricin 45 Biodegradation 45 Anhydrous 45 sulfolane 45 diphenyl ethers 45 Wheat Gluten 45 E Coli bacteria 45 Respiratory Problems 45 Irradiation 45 Possible Contamination 45 arsenic concentrations 45 Photocatalytic 45 radioactive contamination 45 Antibiotic Resistance 45 bioaerosol 45 Pesticide Exposure 45 Permeation 45 Spills 45 e coli 45 PCBs 45 tritium contaminated 45 Additive 45 Traces Found 45 chlorinated hydrocarbons 45 Spill Causes 45 Radionuclides 45 Byproduct 45 Campylobacter bacteria 45 salmonella bacterium 45 Poses Serious 45 Environmental Impacts 45 hormone disruptor 45 fibrous mineral 45 Mad Cow Case 45 suspected carcinogen 45 perfluorinated chemicals 45 Japan Nuke Plant 45 Meat Recall 45 wastewater effluent 45 Drug Resistant Bacteria 45 bacteriological contamination 45 Carbon Monoxide Poisoning 45 Vesivirus 45 Halogenated 45 Effluent 45 banned pesticide DDT 45 Benzene 45 Lead Poisoning 45 THMs 45 airborne toxins 45 Groundwater Contamination 45 Antibiotic Resistant 45 Flooding 45 Dental Fillings 45 chlorinated solvents 45 chlorinated hydrocarbon 45 benzene contamination 45 Endocrine Disruptors 45 organochlorines 45 Sickens 45 Alcohol Swabs 44 Virus Found 44 perfluorooctanoic acid PFOA 44 Discoloration 44 Enterococcus 44 Beaches Closed 44 Radioactive tritium 44 hormone mimicking 44 Cryptosporidium parvum 44 Chlorine leak 44 coli bacteria 44 arsenic 44 Algae Blooms 44 Ozone depleting 44 Fuel Spill 44 Sediment 44 hazardous substances pollutants 44 H#N# Flu Virus 44 Salmonella Listeria 44 Asbestos Exposure 44 Bagged Spinach 44 Insect Pests 44 Bacteria Levels 44 Zebra Mussel 44 Fungal Infection 44 Pesticides 44 Allergenic 44 chlordane 44 Seeping 44 cryptosporidium parasite 44 microbial contamination 44 estrogenic compounds 44 nitrate 44 Antiviral Drugs 44 Sulfuric Acid 44 polybrominated diphenyl ether 44 Contaminated Heparin 44 #,#,# trichloroethane 44 Acidification 44 Leachate 44 Radioactive Material 44 Toxic Algae 44 Polychlorinated Biphenyls PCBs 44 Polybrominated 44 Leak Closes 44 leaky septic tanks 44 borne pathogens 44 Outbreak Hits 44 Frbiz Reports 44 Tainted Peanut Butter 44 CO Poisoning 44 Tainted Eggs 44 radium naturally occurring 44 Polycyclic Aromatic Hydrocarbons 44 biphenyls 44 Resistant TB 44 amphibole asbestos 44 MTBE contamination 44 fecal coliforms 44 Zebra Mussels 44 Tanker Explosion 44 Inhalation 44 Carbon tetrachloride 44 enterococcus bacteria 44 Scientists Warn 44 Benefits Outweigh 44 Defecation 44 Ground Beef Recall 44 estrogenic chemicals 44 Untreated sewage 44 fungal toxins 44 trichloroethane 44 Pesticide residues 44 recontamination 44 Pollutant 44 aflatoxins 44 Legionella bacteria 44 Egg Recall 44 waterborne microorganisms 44 polychlorinated biphenyl PCB 44 DBPs 44 Residue 44 C. perfringens 44 Cigarette Smoke 44 Hydrofracking 44 bromate 44 Vapor intrusion 44 Potentially Fatal 44 methyl tert butyl ether 44 Beef Recalled 44 Hydrogen Sulphide 44 enteric bacteria 44 Drainage Tunnel 44 Aspergillus 44 Phthalate 44 Acne Drug 44 EtO 44 chlorine residuals 44 Clostridium perfringens 44 Rabid Raccoon 44 dioxin 44 Mumps Outbreak 44 Botulism 44 Fecal coliforms 44 Stormwater runoff 44 Prevent Bird Flu 44 polychlorinated 44 PCBs dioxins 44 Waste Dump 44 Global Warming Emissions 44 Sewage Spills 44 Unlabeled 44 Harmful bacteria 44 Sewage Sludge 44 bioaccumulative 44 Flu Outbreak 44 Prompts Recall 44 Pasteurization 44 trihalomethanes THMs 44 Recall Expanded 44 Disinfection 44 Drug Resistant 44 fluorotelomers 44 Flame Retardants 43 microbiological hazards 43 Adulterated 43 Impurities 43 contaminated soil 43 Frozen Pipes 43 Listeria bacteria 43 Flowing Into 43 Baxter Heparin 43 Ingestion 43 Brominated Flame Retardants 43 Romaine Lettuce Recall 43 Deleterious 43 Irradiated 43 Solvents 43 Arsenic contamination 43 bacteria Listeria monocytogenes 43 Dichloro Diphenyl Trichloroethane DDT 43 Listeria Salmonella 43 coliform 43 PAHs polycyclic aromatic hydrocarbons 43 TCE vapors 43 Hexane 43 Farmed Fish 43 Salmonella Tainted 43 Ash Borer 43 E. coli bacteria 43 Rotavirus Vaccines 43 Foodborne Illnesses 43 radiological contaminants 43 Bacterial Infections 43 Superfund Site 43 e coli bacteria 43 TTHMs 43 Flouride 43 Coliforms 43 Hadnot Point 43 Tapeworms 43 Problems 43 Salmonella Scare 43 polynuclear aromatic hydrocarbons 43 Biofilm 43 E. coli contamination 43 pollutes groundwater 43 Nitrosamines 43 Resistant Bacteria 43 arsenic beryllium 43 mercury dioxins 43 Surfactant 43 Fecal Coliform 43 Leaching 43 Ash Spill 43 Border Crossers 43 plutonium americium 43 Intersex Fish 43 parasite Cryptosporidium 43 coliforms 43 Foul Odor 43 Genetically Altered 43 Dredged 43 H#N# Virus 43 Ponding 43 dichlorobenzene 43 e.coli bacteria 43 solvent vapors 43 Listeria monocytogenes bacteria 43 Radioactive material 43 Household Cleaning 43 PFCAs 43 Radiation Exposure 43 Methane Emissions 43 arsenic cyanide 43 Radioactive substances 43 Mercury Fillings 43 degreasing solvent 43 radiation leakage 43 Oil Spillage 43 Toxic Mold 43 polyaromatic hydrocarbons 43 Salmonella contamination 43 Algae bloom 43 phosphates nitrates 43 polychlorinated biphenyl 43 carcinogenic substance 43 Tainted Pet Food 43 bacteria Bacillus anthracis 43 Organic Compounds 43 Tainted Milk 43 Atrazine 43 contaminate drinking 43 Tanker Spill 43 furan contamination 43 microbiological contaminants 43 toxin 43 methamidophos 43 Sewage spill 43 endocrine disrupting chemical 43 Sinkholes 43 Chlorine 43 arsenic cadmium mercury 43 Flammable 43 Biogenic 43 Prep Pads 43 Fears Prompt 43 biphenyls PCBs 43 Discolored water 43 trace amounts 43 Deadly Bird Flu 43 nitrates phosphates 43 monoxide 43 Chlorpyrifos 43 simazine 43 Methyl mercury 43 Particulate 43 Methane 43 hazardous solvents 43 Unsanitary conditions 43 Ozone Levels 43 Soybean Cyst Nematode 43 Elevated concentrations 43 carcinogenic polycyclic aromatic hydrocarbons 43 herbicide residues 43 Trans Fatty Acids 43 Cloned Animals 43 Groundwater 43 PPCPs 43 bioaccumulates 43 Norovirus Outbreak 43 Ammonia leak 43 parasite cryptosporidium 43 endocrine disrupting chemicals 43 chlorinated compounds 43 carcinogenic chemicals 43 furan 43 Kepone 43 Mad Cow Scare 43 benzene carcinogen 43 Finds Possible 43 Proximate 43 dioxin contaminated 43 Undeclared Milk 43 Corrosive 43 Salinity 43 Bioremediation 43 MRSA Superbug 43 hexavalent chromium contamination 43 Sedimentation 43 Eye Infections 43 Nerve Gas 43 pesticide residue 43 Chemical Contamination 43 undercooked poultry 43 Brominated 43 total coliform 43 fecal coliform 43 Radioactive waste 43 Pathogens 43 Liver Damage 43 Leaks 43 Harmful Chemicals 43 PCBs DDT 43 oversulfated chondroitin sulfate OSCS 43 Sodium Hypochlorite 43 Flu Vaccine Shortage 43 Heart Stents 43 contaminating groundwater 43 Hydrogen Sulfide H2S 43 E. Coli outbreak 43 Illnesses 42 Late Blight 42 Spills Into 42 Overflows 42 silt buildup 42 Nitrogen Dioxide 42 Unpasteurized 42 Flu Strain 42 #,# dichloroethane 42 Trichinosis 42 chromium contamination 42 Unsanitary 42 plausible explanation CAS 42 tetrachlorethylene 42 Chemical Hazards 42 Breast Cancer Metastasis 42 CDC Tauxe 42 Hydrogen Peroxide 42 Methylene Chloride 42 Shpack 42 Poisonous 42 arsenic chromium 42 Bacillus cereus 42 Prompt Recall 42 Hazmat Crews 42 nitrates 42 Phosgene 42 Air Pollutants 42 mycotoxins 42 Shellfishing 42 Sterilizing 42 Pneumoniae 42 Odorless 42 Diesel Exhaust 42 naturally occurring radium 42 Salmonella Cases 42 residues 42 polychlorinated biphenyls PCBs 42 Possibly Tainted 42 Causes Evacuation 42 Trihalomethanes 42 Paraquat 42 antibiotic resistant microbes 42 ingesting contaminated 42 toxic residues 42 carcinogenic chemical 42 Detection Kits 42 Clostridium botulinum bacterium 42 beryllium dust 42 hydrogen sulfide gases 42 Potentially Hazardous 42 dioxin contamination 42 Petroleum Hydrocarbons 42 chlorine disinfectant 42 Spill Cleanup 42 microbial biofilms 42 Radioactive Contamination 42 Shellfish Harvesting 42 Gas Detector 42 Causes Evacuations 42 sylvatic plague 42 Sludge Spill 42 Soil Erosion 42 dichloroethene 42 Asthma Sufferers 42 gender bending chemicals 42 Rat Poison Found 42 carcinogen benzene 42 dioxins 42 Alliston aquifer 42 dioxins PCBs 42 Fumigation 42 Volcanic Ash 42 Fecal bacteria 42 Toxic Pollution 42 Measles Vaccine 42 avian botulism 42 toxins leaching 42 undercooked contaminated 42 Design Flaw 42 Kettleman Hills 42 Hydrogen sulfide 42 arsenic barium 42 Coliform bacteria 42 Toxic Waste 42 Lead Paint 42 Misleading Claims 42 Meningitis Outbreak 42 barium cadmium 42 effluents discharged 42 Enterobacter sakazakii 42 Food Poisoning 42 Asbestos 42 Fumes 42 Neurotoxicity 42 Logjams 42 potent carcinogen 42 Deadly Disease 42 flammable corrosive 42 nauseating odors 42 Sulfates 42 Salmonella Linked 42 Allergy Alert Undeclared 42 foodborne pathogen 42 E coli 42 Cryptosporidiosis 42 Derailment 42 aldrin 42 Genetically Modified 42 fecal material 42 Anthrax Scare 42 stachybotrys 42 microcystins 42 Mislabeled 42 Drug Resistant HIV 42 Bromate 42 Measles Outbreak 42 Triclosan 42 Sewage Leak 42 Erosion 42 arsenic cadmium 42 vermin infestation 42 pesticide contamination 42 e.coli 42 Hazardous 42 Estrogenic 42 Anabaena 42 Vinyl chloride 42 PRRS virus 42 Baby Bottles 42 organochlorine pesticides 42 Toxic 42 Fire Retardant 42 EPA Safe Drinking 42 Irradiating 42 Flesh Eating Bacteria 42 tremolite asbestos 42 Comment Period 42 Avian Flu Virus 42 Gas Leak 42 Seawater desalination 42 Effluents 42 fungus Aspergillus 42 Genetic Mutation 42 Spill Containment 42 groundwater 42 Unsanitary Conditions 42 Polluted runoff 42 Urea Formaldehyde 42 Nerve Agent 42 Anhydrous Ammonia 42 Ozone Depleting 42 Recall Issued 42 Tank Explodes 42 Salmonella Found 42 Genetically Engineered 42 PFOAs 42 radionuclide contamination 42 Algal 42 Hemorrhagic Fever 42 Legionnaire Disease 42 Environmental Hazards 42 Escherichia coli O# H7 42 Floodwater 42 Enterococcus bacteria 42 eggshell thinning 42 Biotoxin 42 Concentrations 42 Genetically Modified Corn 42 Spill Shuts Down 42 Bacterial Infection 42 salmonella infection 42 tritium contamination 42 Suspicious Substance 42 disinfectant byproducts 42 Cleanup Efforts 42 Severe Flooding 42 #,#,# tribromoanisole chemical 42 E. coli Salmonella 42 antibiotic resistant bacteria 42 Wreck Pond 42 Ceiling Collapse 42 Cleanup Continues 42 tertiary butyl ether MTBE 42 Farmed Salmon 42 Oil Spills 42 Fluoride 42 Anthrax 42 Runoff 42 Genetically Modified Food 42 Bacterial 42 salmonella E. coli 42 Volatile organic compounds 42 Sewage 42 Pesticide Use 42 Volatile Organic Compounds VOCs 42 quaternary amines 42 SARS Virus 42 Salmonella Strain 41 Salmonella Outbreak Linked 41 potentially carcinogenic 41 leaking septic tanks 41 Prostate Cancer Surgery 41 Carbon Monoxide Leak 41 Toxic Metals 41 radionuclides 41 Faecal 41 Respiratory Illness 41 Temporary Shutdown 41 Toxic Exposure 41 Staph Infection 41 PVC phthalates 41 wastewater discharge 41 Reusable Grocery Bags 41 toxic dioxins 41 Shiranui Sea 41 Bovine tuberculosis 41 Spill Closes 41 MRSA Infections 41 PCBs pesticides 41 Martian Soil 41 benzene ethylbenzene 41 Inundation 41 toxic algae bloom 41 Stachybotrys 41 Heat Exhaustion 41 Issues Recall 41 Whale Carcass 41 Refrigerant 41 Pathogenic 41 Acetone 41 Flame retardants 41 Static Electricity 41 Whooping Cough Outbreak 41 pesticide residues 41 Superbugs 41 Price Hikes 41 Desulfurization 41 Chlorine Leak 41 Possible Salmonella Contamination 41 coliform bacteria 41 Didymo 41 Causes Scare 41 trihalomethane 41 Swine Flu Outbreak 41 methyl mercury 41 soils sediments 41 Hazmat Spill 41 odors emanating 41 inorganic arsenic 41 Weedkiller 41 arsenic cadmium chromium 41 Melamine Found 41 toxic propellants 41 Proper Disposal 41 Trigger Asthma 41 Drug Resistant TB 41 Contaminated Land 41 Skin Infections 41 Marburg Virus 41 Tanker Spills 41 Romaine Lettuce 41 trichloroanisole 41 Toxoplasmosis 41 Biomonitoring 41 Chloramines 41 Vancomycin Resistant 41 Bacteremia 41 Epoxy Resin 41 Plane Collision 41 Likely Cause 41 Viral Outbreak 41 Superbug 41 #,# dioxane 41 Zeolites 41 Space Heater 41 Resistant bacteria 41 Slurry 41 Pesticide Residue 41 Eradicates 41 Chlorine bleach 41 waterborne pathogens 41 bird excrement 41 Fetus Found 41 E.coli O# H7 41 Propyl mercaptan 41 Pistachio Recall 41 Hazardous Drugs 41 Pompton Lake 41 Fumigant 41 Blood Glucose Levels 41 bacterium Clostridium 41 Seafloor 41 Illness Outbreak 41 Particulates 41 Remediation 41 Sewage Overflow 41 Fine particulates 41 Smog Rule 41 chemical C8 41 Sewage overflows 41 Evaporation 41 Fuel Shortage 41 pesticides aldrin 41 Hidden Danger 41 arsenic cadmium copper 41 Fire Extinguished 41 Mad Cow Testing 41 Ricin 41 Finds Evidence 41 Sediments 41 aromatic hydrocarbons 41 Sulfuric 41 siphonage 41 Coal Tar 41 Concerns Arise 41 biodegraded 41 Climate Warming 41 solvents pesticides 41 Iron Deficiency 41 Bird Flu Virus 41 Ammonia 41 vibrio parahaemolyticus bacteria 41 Fires Prompt 41 Inorganic arsenic 41 microbial contaminants 41 Recalled Due 41 DDT dieldrin 41 Laceration Hazard 41 Leakages 41 benzopyrene 41 Pathogen 41 Malfunction Causes 41 EPA Proposes 41 Poisoning 41 naturally occurring radioactive 41 Heavy Rain Causes 41 Scofieldtown 41 Genetically Modified Salmon 41 Bubonic Plague 41 radioactively contaminated 41 sicken humans 41 Skin Condition 41 pentachlorophenol 41 Intersex fish 41 Acetaldehyde 41 Vapors 41 Bunker Hill Superfund 41 Propionate 41 uncontrolled hazardous waste 41 selenium poisoning 41 Cholera Outbreak 41 Liquidity Crunch 41 hexane 41 NKorea Reactor 41 petroleum hydrocarbons 41 PFBA 41 Related Illnesses 41 Shigella bacteria 41 Gram Negative 41 Sewage overflow 41 Cause Flooding 41 Non Critical 41 Genetically Modified Foods 41 salmonella contamination 41 Cleanup Begins 41 consuming unpasteurized milk 41 coli outbreak 41 Escherichia coli E. coli 41 Risks Posed 41 Flame Retardant 41 Disease Causing 41 Prenatal Exposure 41 contaminants leach