Acute Atmospheric Layer Of Earth 's Atmosphere

5361 WordsJun 6, 201522 Pages
(a)The smoke seen emanating from the slum would be held and circulated within which layer of Earth 's atmosphere? (1 mark) Troposphere: The lowest atmospheric layer surrounding the globe and is approximately 11 km in thickness. In this region most clouds and meteorological conditions are situated in the troposphere. The troposphere is approximately 7klm thick near the poles and denser by approximately 15klm next to the equator. (b)Please explain how the slum dweller 's exposure to soot is a considerably more serious health problem than their exposure to other pollutants typical of life in a large city. (6 marks) The pollutants that are released into the atmosphere in a large city and are absorbed into the higher levels of the troposphere…show more content…
The chosen lanterns are well suited to the harsh slum conditions: the lantern bodies are constructed of extremely hard wearing plastic, the batteries are a cadmium type for extended life and charge cycles, and the bulbs are an ultra-robust mercury vapour globe capable of many hours of producing a brilliant white light. Average lantern life is 3 years, after which they end up in the landfill. While many slum dwellers cannot yet afford a lantern, a large number have purchased one or are onto their second or third, paying in instalments. (d)Taking a holistic (big picture) view, please list (with a brief rationale for each) the environmental impacts of the Mayor 's lantern initiative. (6 marks) 1. The lantern bodies are constructed of extremely hard wearing plastic which will cause environmental issues in breaking down in landfill. Chemicals leaching into the ground aquafers causing health issues and poisoning to the ecosystems. 2. The batteries containing cadmium (Cd) are poisonous. Cadmium can be transported over great distances when it is absorbed by sludge. This cadmium-rich sludge can pollute surface waters as well as soils 3. The bulbs are an ultra-robust mercury vapour globe capable of many hours of producing a brilliant white light. When these bulbs are broken, the mercury in
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