EESA10H3 Lecture Notes - Lecture 8: Listeria Monocytogenes, Genetically Modified Food, Algal Bloom
20 Mar 2019
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Document Summary
Foodborne illnesses: food production (use of chemicals, fertilizers, pesticides, transmissible diseases, bacteria, escherichia coli, clostridium botulinum (botulism, salmonella, listeria monocytogenes (listeriosis, viruses, parasites, non-transmissible diseases, shellfish-associated toxins, color additives, obesity, diabetes, organic food, genetically modified food. Nitrites in groundwater: very mobile causes algal bloom, much more toxic, direct human health effect. Nitrites in water change hemoglobin to form that cannot carry oxygen. Causes methemoglobinemia (blue baby syndrome) in young infants: pesticide = chemical used to kill pests. Not a biological category but rather a cultural one: types of pesticides. Inorganic compounds: pyrethrum (from chrysanthemum plant) natural, 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. Acute toxicity to people varies widely: carbamate insecticides. Low acute toxicity to people: pyrethroid (pyrethrum-like) insecticides. Kill broad-leaved plants; do not kill plants in grass family (e. g. , grain crops, turfgrass)
