An analysis of the negative aspects of natural resource extraction

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An analysis of the negative aspects of natural resource extraction

We will review them briefly, to provide not only a classification of general value, but also an appreciation of the nature of the problem and the challenges that face us. Overt Disasters Overt disasters are environmental releases which leave no ambiguity about their sources and their potential harm.

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Examples are Seveso, Bhopal and Chernobyl. Seveso plays the role of prototype for chemical industrial disasters Homberger et al. The accident took place on 10 July in the Seveso area, close to Milan, Italy, in a plant where trichlorophenol was produced, and it caused the contamination of several square kilometres of populated countryside by the powerfully toxic 2,3,7,8-tetrachlorodibenzo-p-dioxin TCDD.

More than people were evacuated, and restrictions were applied to another 30, inhabitants. The most clearly established health effect was chloracne, but the picture of health consequences possibly linked to this incident has not yet been completed Bruzzi ; Pesatori Bhopal represents, probably, the worst chemical industrial disaster ever Das a, b; Friedrich Naumann Foundation ; Tachakra On the night of 2 Decembera gas leak caused a deadly cloud to spread over the city of Bhopal, in central India, leaving thousands dead and hundreds of thousands injured in the space of a few hours.

The accident occurred because of a runaway reaction in one of the tanks in which methyl isocyanate MIC was stored.

An analysis of the negative aspects of natural resource extraction

The concrete storage tank, containing some 42 tons of this compound, which was used to manufacture pesticides, burst open and vented MIC and other breakdown chemicals into the air.

Slow-Onset Disasters Slow-onset disasters may become apparent only because human targets happen to be on the release path, or because, as time passes, some environmental evidence of a threat from noxious materials crops up. In unusual neurological disorders began to strike people living in fishing villages along Minamata Bay, Japan.

After numerous investigations, poisoned fish emerged as the probable culprit, and in the disease was produced experimentally by feeding cats with fish caught in the bay.

The following year, the suggestion was put forward that the clinical picture of kibyo, which included polyneuritis, cerebellar ataxia and cortical blindness, was similar to that due to poisoning by alkyl mercury compounds.

A source of organic mercury had to be sought, and it was eventually found in a factory discharging its effluent into Minamata Bay. The area had been used as a chemical and municipal disposal site over a period of about 30 years, until Homes were later built next to the landfill.

In the late s, there were complaints of chemical odours in home basements, and chemical leaching in areas surrounding the site began to be reported with increasing frequency over time.

In the s, residents began to fear that a serious threat to their health could arise, and this shared perception prompted environmental and health investigations to be carried out. None of the published studies could conclusively support a causal link between exposure to chemicals at the disposal site and adverse health effects among the residents.

An analysis of the negative aspects of natural resource extraction

Yet, there is no doubt that serious social and psychological consequences have resulted among the population in the area, particularly those who were evacuated Holden Mass Food Poisonings Outbreaks of food poisoning can be caused by toxic chemicals released into the environment through the use of chemicals in the handling and processing of food.

In Mayan outbreak of a previously unknown syndrome began to appear in the working-class suburbs of Madrid.IntroductionThroughout the ages, humans have relied on Nature for their basic needs for the production of food-stuffs, shelters, clothing, means of transportation, fertilizers, flavours and fragrances, and, not the least, medicines.

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