Lead (Pb) is a malleable, ductile, heavy metal that is resistant to corrosion and is bluish-white in color but turns gray and tarnishes when exposed to air. It is a moderately active metal, dissolves slowly in water, and does not burn. It is naturally occurring in the Earth’s crust. Its abundance is estimated to be between 13 and 20 parts per million. It rarely occurs as a pure element and its most commonly found in the form of lead sulfide (PbS). Children are the most vulnerable population
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is so reactive it can ignite on contact with water forming sodium hydroxide which is highly irritating to skin, eyes, nose and throat. This can cause coughing and sneezing but very intense exposures can result in difficult breathing, and chemical bronchitis. Contact to the skin may cause itching, tingling, and permanent damage due to burns. Contact with eyes may result in permanent loss of sight. So because of this it has to be kept in a moisture free environment. Titanium, sodium peroxide, sodium
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Unit 5 project 1: pollution, labor and public goods Research on coal burning plant – Releases of pollutants’ are Carbon Dioxide, sulfur dioxide, nitrogen oxides and mercury compounds. These limits are from the EPA (environmental pollution agency) and its 2249lbs/Mwh for carbon, 13lbs/Mwh for sulfur, 6lbs/Mwh for nitrogen. Water is used to cool the plant and the company has to have a permit to release the water back into the environment. The water may contain lead and arsenic and will have to
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Topic: The Life-threatening Disease Asthma Organization: Topical Specific Purpose: At the end of my presentation, I want my audience to be educated on the conditions of asthma, how to manage the disease, and how to help someone under an attack. I. INTRODUCTION A. Attention Getter: What illness do you think is the leading cause for children missing 14.4 school days and 14.2 million adults missing a workday? Well I personally thought the common cold or fever would be the leading cause
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Abstract: The city of La Oroya’s, population is about 35,000 residents whose economy depends on one company Doe Run, that is creating health and environmental problems all around its surroundings, by releasing poisonous chemicals such as lead, sulfur dioxide, arsenic, cadmium, antimony, copper, and zinc. The environment is suffering the consequences from the emissions of smelter that causes acid rain and makes it almost impossible for vegetation to survive and animals to feed themselves. In addition
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Current diagnosis COPD/Emphysema. Patient XX was diagnosed with COPD in 2009. COPD is a progressive disease with presence of airflow obstruction, which may be cause by chronic bronchitis or emphysema. Emphysema is a pathological condition caused by the destruction of alveolar walls and a consequent permanent enlargement of the alveolar sacs. According to the National Institute of Health (NIH), a diagnosis of COPD is made based on the patient’s signs and symptoms, medical and family history, and
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Essay On The Pollution ESSAY The word, 'pollution' means to make dirty. Pollution causes imbalance in the environment. Environmental pollution is a serious problem. Nearly 35 percent of India's total land area is subject to serious environmental pollution. Industrialization has led to urbanization, which has added to the pollution problem. Air pollution is the most dangerous form of pollution. land and water pollution have worsened the situation. Pollution causes several types of harmful disease
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“You cannot predict the outcome of human development. All you can do is like a farmer create the conditions under which it will begin to flourish” (Gaille 27). Human development is a complex process. Hereditary and environment are contexts of development, which is different for everyone and can result in many different forms of developmental processes. However, many scientists have formed their own theories as to how development occurs across the lifespan, each having its own strengths and limitations
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SJOGREN’S SYNDROME Melinda Aikins November 18, 2010 PREFACE Sjogren’s syndrome, pronounced “shogrens”, is not a well known disease, but there are many people in the world who have it. 80% of them are women. I am among that 80%. I chose this subject to learn more about this disease I was diagnosed with over eight months ago. I’ve been researching it ever since and now I have a chance to put everything I’ve learned into something that is helpful not only to me, but also others. It’s hard
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Early and Middle Adulthood Francisco Del Angel PSY/280 February 15, 2013 Shannon Hilligoss Early and Middle Adulthood In this paper, early and Middle adulthood will be compared and contrasted. It will show how the decisions made earlier in age may or may not affect people. This paper will go through the changes of social and intimate relationships in these two different age frames as well as the various role changes people in this age group might encounter. It’ll talk about health problems
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