EESA10H3 Lecture Notes - Lecture 8: Hyperglycemia, Silage, Osteoarthritis
1 Apr 2017
School
Department
Course
Professor
Document Summary
Human health and environment lecture 8 food. Non transmissible diseases: shellfish associated toxins color additives, obesity, diabetes. Extensive use of nitrate fertilizers- nitrates in groundwater. Direct human health effects: nitrates in water change hemoglobin to form that cannot carry oxygen, causes methemoglobinemia (blue baby syndrome) in young infants. Not a biological category but rather a cultural one. Organochlorine insecticides: ddt, chlordane, aldrin, dieldrin, heptachlor, neurotoxin; low acute human toxicity, persistent and bioaccumulative, many banned in more developed countries; stockholm convention. Organophosphate insecticides neurotoxins; not persistent in environment acute toxicity to people varies widely. Chemical action similar to organophosphates low acute toxicity to people. Pyrethroid (pyrethrum-like) insecticides low acute toxicity to people. Kill broad-leaved plants; do not kill plants in grass family (e. g. , grain crops, turfgrass) In military context, used to kill large plants that provide cover to enemy combatants. Non selective herbicides kill all plants example: monsanto"s roundup. Resistance; some pests resistant (genetic makeup), resistant individuals survive and breed.
