Non-threshold dose- any dosage causes harm a certain dosage must Threshold dose response- Be reached before any harm is detected. Describe 4 potentially harmful chemicals that could be found in your home. 1. Vinyl toys contain phthalates 2. Water bottles can contain BPA 3. Mattress contains flame retardant chemicals 4. Imported fruit contains pesticides Chemical Toxin Sources Human or Wildlife Health Impact PCBs Used as electrical insulators, fire Neurotoxin causing brain damage retardant materials, pesticides, and in fetuses as adhesives Endocrine disruptor causing reproductive cancers DDT A commonly used pesticide in the Biomagnifies in the food of US prior to banning it in 1972 ecosystems Still used in developing countries Causes reproductive damage and to control malaria and pests cancers in avian (bird) populations Phthalates Group of chemicals used in the Causes reproductive damage and production of plastics cancers Used as solvents in many products such as vinyl flooring, adhesives, detergents, and some personal care products like shampoo and soap Atrazine One of the most widely used This pesticide is currently being pesticides in the US monitored by the EPA to Herbicide primarily used to control determine if it is linked to weed populations in the Midwest endocrine cancers
Non-threshold dose- any dosage causes harm Threshold dose response- a certain dosage must Be reached before any harm is detected. Describe 4 potentially harmful chemicals that could be found in your home. 1. Vinyl toys contain phthalates 2. Water bottles can contain BPA 3. Mattress contains flame retardant chemicals 4. Imported fruit contains pesticides Chemical Toxin Sources Human or Wildlife Health Impact PCBs Used as electrical insulators, fire retardant materials, pesticides, and as adhesives Neurotoxin causing brain damage in fetuses Endocrine disruptor causing reproductive cancers DDT A commonly used pesticide in the US prior to banning it in 1972 Still used in developing countries to control malaria and pests Biomagnifies in the food of ecosystems Causes reproductive damage and cancers in avian (bird) populations Phthalates Group of chemicals used in the production of plastics Used as solvents in many products such as vinyl flooring, adhesives, detergents, and some personal care products like shampoo and soap Causes reproductive damage and cancers Atrazine One of the most widely used pesticides in the US Herbicide primarily used to control weed populations in the Midwest This pesticide is currently being monitored by the EPA to determine if it is linked to endocrine cancers