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effects of pollution on human health essay
bhopal gas tragedy main cause
effects of pollution on human health essay
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1. Introduction
Air pollution is defined as the presence of any substance in the atmosphere in such a concentration that it may or may tend to be injurious to humans, plants, property and to atmosphere itself. And the substance itself is called air pollutant.
Air pollution occurs due to anthropogenic activities like industrialization, increase in vehicular traffic etc.
Air pollution episodes were rare and highly local with almost no causalities before 1960.
Industrial mishaps are broadly contributing to the air pollutional episodes.
Industrials accidents occur due to lack of safety measures in the industry, poor maintenance of equipment, lack of skilled labour, lack of supervision, negligence etc. The rules for location of industries have to be strictly followed to avoid accidents. The effluents released into the atmosphere from the industries have
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The major industrial accidents occur due to gas leakages, mine crash, leakages from nuclear reactors, explosions and fire accidents.
The Bhopal disaster, also known as the ‘Bhopal Gas Tragedy’, was a gas leak incident in India, considered as the world’s worst industrial disaster. This industrial disaster not only causing air pollution, it is also responsible for loss of lives.
On the night of 2-3 December 1984, a poisonous gas named methyl isocyanate leaked from a pesticide plant run by Union Carbide India Ltd., in Bhopal, turning the city into a gas chamber (40 tonnes gas leaked). Thirty years on from the Union Carbide gas leak tragedy, Bhopal is a city defined by the disaster.
On the basis of deaths that took place between 3-6 December 1984 from the leak of MIC gas from the pesticide making factory of Union Carbide India, the State government divided the capital city into two, i.e. area of victims and area not influenced. A total of 62.6% of the population of Bhopal was affected, while the rest was
Meshkati, Najmedin. "Human Factors in Large-Scale Technological Systems' Accidents: Three Mile Island, Bhopal, Chernobyl." Industrial Crisis Quarterly 5 (1991): 131-54. Personal World Wide Web Pages. Web. 19 Mar. 2011. .
Rachel Carson was a zoologist, writer, and an ecologist. She recognized the issues which would prove to have deleterious long-term effects. On 27th September 1962, a book which changed the course of the 'environmental movement' was published. It was lauded by supporters who had witnessed the ill-effects of biocides and those who had amassed similar scientific proof. Both Rachel Carson and her publishers had expected a backlash of criticism which unsurprisingly came from chemical industries like Dupont and American Cyanamid. Soon after the book was published, a Dupont initiative 'Union Carbide' single handedly caused the biggest industrial chemical disaster in Bhopal. Major companies like Monsanto led colorful defaming campaigns against the author. The campaign seemed to backfire as the publicity led to increased book sales, and the public awareness rose proportionally. The overwhelming public response had forced the U.S Senate to pay heed to Rachel Carson's views. She presented the scientific data accumulated for the book to President John F. Kennedy and his sub-committee. Their agenda was to formulate policies to counteract the pollution caused by
As the Industrial Revolution began, many factories were constructed and along with that, bad air to the environment. Pollution came about and filled up the entire sky with black smoke, as shown on document seven. While the factories produced not only materials but also pollution many people, especially factory workers, got sick and eventually died. Many factory workers got sick due to the enclosed areas that they worked in. Not only that many of the workers were surrounded by massive and dangerous
The facts given in the case of A Cloud in the Midnight Sky raise more questions than they answer. Reviewing this case with the mindset of an administrator, proves to be quite complex. Since I am the acting incident commander, It is my responsibility to declare this situation an external disaster. While the facts in this case study definitely point to catastrophic possibilities, I feel like there are still many pieces of the puzzle that need to be filled. Before I declare a disaster, I need to be in close communication with the local authorities. I will need to assess the entire situation and gather as much information about the incident as possible. Two of the most important pieces of information I would need is what chemical agents if any, have the patients been exposed to and
In addition to the plant, the governments related in India that issued permits and provided incentives for the plant, Bhopal community officials who permitted slum dwellers to move near the plant in illegal settlements, Indian environmental and safety inspectors should also be responsible for this. The governments related in India issued permits because people need jobs, or people would starve to death. This was one reason in my opinion. Soft money from Union Carbide plant may be another reason for issuing permits. It was clearly that the governments in America would not issue a permit to Union Carbide plant under such circumstances, which lacked of severe environmental standards and permitted slum dwellers to live near the plant and so on. Such actions were the fuses leading to more deaths. Before the major gas leakage from the MCI unit on December 3, 1984, some people were killed because of phosgene gas leakage. However, no one took it seriously in spite of the report by media. One of the reasons that people ignore this was because people didn¡¦t know the potential danger of the chemical plant. The other reason was that there are not enough environmental inspectors to cover so many plants in India. Besides, those inspectors had a record of loose enforcement. Consequently, danger emerged just as the saying goes ¡§Nothing comes of nothing.¡¨
Accidents are an inevitable part of life. Children learn this at an early age by bumping their head, scraping their knees, or falling off the swings. They learn that sometimes painful experiences just happen, seemingly without cause or reason. These children carry these lessons into adulthood, and then project their tolerance for accidents onto their families and occupation. The chemical industry, while one of the safest industries, has the potential for catastrophic accidents. Through experience and renewed focus on the conservation of life, the chemical industry has improved its safety considerably. In 2005, chemical industry fatality rate (the number of fatalities per year per total number of people in the applicable population) was the third lowest when compared to industries such as agriculture, coal mining, and construction1. However, accidents still occur, sometimes with regrettable repercussions. In 2005, Formosa Plastics Corporation in Point Comfort, Texas experienced an accident with severe consequences.
One of the worst cases of catastrophic event in history is the Bhopal Union Carbide case.
The accidents involving machinery kill and/or hurt more coal miners in a year than any other mining accident. The machinery in mines are located in cramped spaces with little light, causing miners to have two times the chance of accidents. The accidents involving roof and rib failures can usually be averted if a mining company has a roof support plan. For a roof support plan to be made, information like entry widths, mine geometry, the number of pillars that must be left up right, and the number of bolts that must be used are needed (Cobb 3 of 5) Accumulations of gases in underground coal mines is another very serious hazard. If certain gases like methane and carbon monoxide are at or above 5% in the air they can cause violent explosions. Blasting in coal mines are the main cause for such dangerous levels of carbon monoxide.
One of the most significant environmentally damaging instances in history was the Chernobyl incident. In 1986, the Chernobyl Nuclear Plant in Ukraine exploded. It became one of the most significant disasters in the engineering community. There are different factors that contributed to the disaster. The personnel that were tasked with operating the plant were unqualified. The plant’s design was a complex one. The RBMK reactor was Soviet design, and the staff had not be acquainted with this particular design. As the operators performed tests on the reactor, they disabled the automatic shutdown mechanism. After the test, the attempt to shut down the reactor was unsuccessful as it was unstable. This is the immediate cause of the Chernobyl Accident. It later became the most significant nuclear disaster in the history of the
investigating industrial accidents and safety. Some features of the risk culture have been discussed by Barry
Every year, more than sixty-six million tons of poisonous gas is emptied into the air,
During the winter of 1952-1953, London came face to face with the “heaviest winter smog episode known to men.” (Environmental disasters) During the weeks leading to this even London had been experiencing colder than usual weather. Because of the cold weather, households were burning more coal to keep their families warm. This caused “additional coal combustion and many people travelled only by car, which caused the occurrence of a combination of black soot, sticky particles of tar and gaseous sulphur dioxide.” (Environmental disasters) During this event the numbers of deaths per day increased to a nine times the normal number in some cities. The smog approximately killed 12,000 people. Most of the victims were children and elderly people.
Just after midnight on 3 December 1984, a dense gas cloud formed and rolled through the city of Bhopal and its surrounding villages. The people that inhaled the gas immediately started feeling its affect. They coughed uncontrollably, the gas burning their eyes, noses, and throats. The gas then attacked their central nervous system and, if they were unable to escape the cloud, they fell dead.
Hazardous material accidents are common in warehouses and industries, the employ should provide a safe place to store the hazardous material, and the workers should have a good knowledge about how to response with that accidents and how to use the correct PPE and what control measures should be taken in that kind of accidents.
A hazard is a potential damage, adverse health or harm that may effects something or someone at any conditions. Other than that, the risk may be high or low, that somebody could be harmed depending on the hazards. Risk assessment is a practice that helps to improve higher quality of the develop process and manufacturing process. It is also a step to examine the failure modes of the product in order to achieve higher standard of safety and product reliability. Unfortunately, it is common that a product safety risk assessments are not undertaken, or not carried out effectively by manufacturer. Mostly an unsafe and unreliable product was produced and launched on to the market. Thus, the safety problems are mostly identified after an accident happened or after manufacturing problems arisen. In order to prevent risk, a person should take enough precautions or should do more to prevent them because as a user should be protected from harm that usually caused by a failure for whom did not take reasonable control measures.