Renewing the natural ecosystem for a healthier food chain 11 CONCLUSION 14 APPENDIX 15 REFERENCES 16 INTRODUCTION In Vietnam, during the period of 1961-1971, American army sprayed more than 80 million liters of toxic chemical substances, most of which were Agent Orange which contained about 400 kilograms of dioxin. This weapon of mass destruction has caused great suffering to countless families and left serious consequences on the natural environment and generations of Vietnamese. For the time being, it is estimated that there have been 4.8 million Vietnamese people victimized by Agent Orange/dioxin. They reside mainly along the Trail of Truong Son and in areas bordering Cambodia. Tens of thousands of them have died.
But what happens when the seemingly carelessness of one variant of an ecological component; humans, causes disproportion in the cycle of coexistence? The result is an ecosystem imbalance. Every year, there are millions upon millions of toxins that are released in the atmosphere and in our water sources, as a result of human activity. In addition to the naturally occurring atmospheric gases, we humans have developed products and processes that release serious pollutants into the atmosphere; these are referred to as greenhouse gases (“The Global Greenhouse Effect,” n.d.). We have created massive power plants throughout the United States that emit toxic fumes and gases.
Disposable Diapers In a study completed by the Ontario Office of Waste Reduction (a section of the Ontario Ministry of the Environment, 1992), it was shown that 15 percent of the municipal solid waste stream after the removal of blue box items and yard waste is disposal diapers. In addition, Environment Canada (1990) reported that diapers are the third largest single item, after newspapers and beverage and food containers, in the municipal solid waste stream. Environment Canada also reported that it takes 400 kilograms of fluff pulp and 130 kg of plastic per year to supply one baby with disposable diapers. This supply of products contributes to a significant amount of deforestation and crude oil mining per year. Also to consider is the energy and by-products used and created to produce disposable diapers.
Air over Iran's capital is among the most polluted in the world, health experts say many Iranians suffer serious health problems as a result. Most of the pollution comes from vehicles on the congested roads of the rapidly growing metropolis of more than 12 million people, and the level of pollutants far exceeds World Health Organization standards. Each year, the 1.4 million vehicles in the city pump an estimated 5 million tons of CO2 into the air, according to the Tehran mayor's office. Tehran has a similar geographical position to Los Angeles and Mexico City – two other cities that experience heavy air pollution. Tehran has been listed as the top-ten air-polluted cities in the world in World Health Organization Report (Davidson, 2013).
Why are middle grade students being targeted for the game of Uncommon Scents? Research is shown from the 2009 Monitoring the Future Survey, that the percentage of eighth graders that stated that they have used inhalants at least once in the past year was approximately 8.1 %, surpassing the 6.1 % of tenth graders and the 3.4% of twelfth graders. (Johnston et al.2009; Wu and Ringwalt 2006; Neumark et al.1998). Although inhalants seem harmless, since a lot of inhalants are just under your bathroom or kitchen sink, they can actually cause permanent harm. For example, an acute effect of organic solvent
But this study contrasted two different areas of the same city, showing that different types of pollutants can produce different effects. The researchers examined the hearts of 21 young adults, average age 18, who had lived in Mexico City before dying in accidents. Mexico City has some of the worst air pollution in North America and has high concentrations of microscopic pollutants, known as particle pollution, or particulate matter. Particulate matter that is less than 2.5 micrometers wide -- the kind of particle pollutants that are found in smoke and haze -- are more likely to gain entrance to the body than larger particles, which can be filtered out in the nose. Once inside the particles can travel to various parts of the body, including to the heart, where they can cause damage or disease.” With the amazing things that air population within Mexico City has done to the people and
I had never heard of the words “Caffeine Overdose” So you ask how much caffeine I took? Thesis: With caffeine consumption being so common, it is vital to know the impact caffeine has on the body, as its effects can influence cardio-respiratory and perhaps most importantly neurologically. I. Most of the caffeine consumed in the United States is in coffee, tea, energy drinks, soft drinks, and energy pills. (let’s take a look at the most common once seen here on campus) (also what I had that morning that scared me for life ) 1. .
Pesticides can travel great distances through the environment even if that is not the intention. Whether the chemical is sprayed on crops or in gardens, the wind can blow the pesticide to other areas that may be pesticide sensitive. They can also flow into rivers or streams where they are carried to new locations or they can seep deep into the soil and affect the groundwater causing unexpected harm to those who drink the contaminated water. As part of a National Water Quality Surveillance Program both British Columbia and Ontario were found between 2003 and 2005 to have the largest number of pesticides found in aquatic ecosystems and sensitive surface waters. Samples were taken from approximately 140 sites and 15 watersheds of various sizes.
Studies in England have shown that a quarter of adults aged 16-24 were drinking more than the recommended limits. It also showed 8.2 million adults were in need of some form of medical intervention (Drummond et al, 2004). SOCIOLOGY- The definition of sociology is the study and understanding of society, origin, development, and structure of human societies. (Oxford mini dictionary for nurses, 2011). It also studies the behaviour of individuals and groups within society.
In the United States, “smoking accounts for an estimated 90% of all lung cancer deaths in men and 80% of all lung cancer deaths in women and an estimated 90% of all deaths from chronic obstructive lung disease are caused by smoking”. (The Health Consequences of Smoking: A Report of the Surgeon General, 2004) Smoking affects the circulatory system in different ways. The circulatory system is made up of blood vessels. The carbon monoxide from cigarettes damages the layer of cells coating blood vessels. This causes fats and plaque from food consumed to stick to vessel walls causing them to tighten or constrict.