Geography 2152F/G Lecture Notes - Lecture 10: Ozone Depletion, Meteor Crater, Spaceguard
20 Nov 2018
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Vulnerability to technological hazards: typically, the death tolls from technological hazards are relatively low, vulnerability is greatest for those involved in industry or transportation systems, workers in resource industries in hinterlands are at higher risk (e. g. miners) . Types of technological hazards: extreme hazards, widespread and long term (nuclear accidents, cumulative effects, rare catastrophes, airplane crashes, mine collapses, shipwrecks, common, automobile accidents, poisons. Calculating risks of technological hazards: large-scale structures (buildings, bridges, dams), risk is defined as the probability of failure during the lifetime of the structure. 2: transportation (road, sea, rail), risk is the probability of death or injury per km travelled. Industry (manufacturing, power production): risk is the probability of death or injury per person per number of hours exposed. Radon: primary source of radon gas is from the natural decay of uranium in rock and soil, when radon is inhaled it then decays to polonium and lodges in the lungs where it damages tissues (cumulative effect)
