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Effects of pollution on human health Essay
Effects of pollution on human health Essay
Effects of pollution on human health Essay
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Abstract
Surface water and groundwater are the main sources of readily available freshwater. As a result, their contamination will directly affect human health as seen in China and Bangladesh. In China, the deterioration of water quality was caused by the pollution of the environment by emissions and waste products from industries, agricultural runoffs and improperly disposed sewage. In Bangladesh, natural arsenic is majorly responsible for the contamination in the groundwater. In both countries the low quality of water has greatly affected the health and social aspects of their everyday life. For example, skin lesions, lung and skin cancers are common in Bangladesh, while gastrointestinal diseases are dominant in China. The case studies on China and Bangladesh confirm the direct relationship between human health and water quality and need for appropriate remediation techniques. In both countries, extensive remediation and monitoring methods have been established for present cases of contamination, and new regulations such as the payment of fines have been introduced to ensure more water bodies are not contaminated. This practices will also indirectly improve social impacts as well since the rate of occurrence of water borne diseases will be lower.
Introduction
The hydrologic cycle describes the transfer and exchange of water within and between the atmosphere, biosphere, lithosphere and hydrosphere (UNESCO, 2009). Water, which is usually colorless, tasteless and odourless in its natural state is the only compound known to exist in solid, liquid and gaseous state at room temperature (USGS, 2009). The total volume of water on Earth is 1.4 billion km3, of which 35 million km3 is freshwater including groundwater reserves, lakes, r...
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...ths and other birth defects (Wang et al., 2006). Another issue associated with these heavy metals is their ability to disrupt the homeostasis of living organisms if they are ingested because the organism’s internal organs does not recognise these metals and cannot digest them (Smith et al., 2000). Heavy metals may also change their form within the environment. For example, mercury may react with alkyl compounds such as alkyl halides to form alkyl mercury (Seaton et al., 1995). Lipids and proteins in humans and other smaller organisms have an even stronger affinity for alky mercury than mercury (WHO reports, 2009). As a result, ingested alkyl halides are not easily excreted and they bioaccumulate and biomagnify in these fatty tissues and proteins from which they are transported up the food chain with consumption of contaminated food substances (Seaton et al., 1995).
In the World, the liquid medium that we know as water is the main component that keeps humans, animals and their respective ecosystems alive. Everything from trees down to the smallest leaf requires it, and it is required for any lifeform to continue to grow. Though as humanity expands and continues on an upward slope, humans as a lifeforce continue to need more. Water is a defining aspect of a community, and with the ever-rising population and human-crafted climate change coming to an all-time high, one of the most important water origins of the southeast region is coming to a very dangerous low.
Heavy metals are unsafe on the grounds that they have a tendency of bioaccumulation. Bioaccumulation implies an increment in the convergence of a substance in a biotic organism overtime contrasted with chemical concentrations in the environment. Mixes gather in living things at whatever time they are consumed and saved speedier than they are broken down (metabolized) or discharged.
Concerns about contamination found in fish can pose a threat to its consumers and put their outcomes at risk. Fish are known to contain the chemicals mercury, dioxins, and PCBS that can be harmful to individuals. These chemicals may build up in a person’s body after years of eating highly contaminated fish that can result to one’s health concern. “In America one-in-six children born every year have been exposed to mercury levels so high that they are potentially at risk for learning disabilities and motor skill impairment and short-term memory loss” (“Mercury in”). This statistic shows that inf...
Water is an essential part of life for any living organism in the world. People use water every day to drink, do daily housework, or to bathe in; while animals use water to survive. Because of the doings of humans, the water that is so essential to all organisms’ well being is being polluted. The water drink and use every day may have oil from large petroleum companies spilling into it. Debris from sewer plants float into the ocean when they overflow. Even prescription pills are contaminating the water. Not only is the water affecting the humans that drink it but also affects the aquatic life. Aquatic species may have problems reproducing which disrupts the whole food chain and biodiversity web of life. How water becomes contaminated should
Expoure to elemental mercury is mostly due to indoor spills, medical waste, and left over mercury from school labs, which is due to humans not pro...
Water pollution is a very serious problem as it affects one of the most essential ingredients to our very livelihood. The earth is covered in water, in fact about 70% of the Earth is covered in water, only
The audience of this paper would be anyone interested in an in-depth look at the importance of the water situation in China caused by the pollution and the construction of damns like the Three Gorges Project and its impact on the progression of international water resource. It will go on to analyze this year’s water problems in major cities, bringing to light the health problems.
An exemplification of polluted living environment would be the region of Hazaribagh, which is home to most tannery factories in Bangladesh. Hazaribagh, situated in the nation’s capital, Dhaka is also densely populated with 6.97 million people spread across a land mass of only 270 km, and according to the survey conducted by ‘The Daily Star’ more than 32.3% of the overall population are poverty stricken individuals, compressing the street and footpath with makeshift tents. The greatest health implicated suffered by the workers as well as the poverty stricken citizens of Hazaribagh are the tannery factories. These factories produce about 200 leather tanneries, which liberate 22,000 cubic meters of raw liquid waste daily into rivers and groundwater. As a consequence, the Buriganga River, which offers the deprived individuals water to bath, irrigate as well as a transportation method for thousands, but now it is polluted with toxic liquid tannery wastes from the factories.
Living in a world that is roughly 70% water, and all living creatures found on this planet depend on this resource whether directly or indirectly, making water quality an important topic and vital to sustain our world of cycles. “Determination of status of water quality of a river or any other water sources is highly indeterminate. It is necessary to have a competent model to predict the status of water quality and to advice for type of water treatment for meeting different demands.” (Bai V, 2009) With most of our water on this planet made of salt water and our constant damage towards the remaining water that can be consumed by humans is diminishing with improper distribution on a global scale. If our greed comes before companionship, and our quality of life is more important than pollution, then our future generations to come will be born into a world of chaos, and a scarce of a basic human necessity.
On the one hand, water pollution poses serious threats to people’s living and health conditions. For example, according to the US Geological Survey, California has one-fifth of the water supply systems exceed the standard amount of perchlorate in the past decade. Some remote schools in Tulare County have denied students access to drinking fountains, and a school district of 260 students spends $ 10,000 or more per year on drinking water. The school will order bottled water, store and distribute it to each classroom, and collect empty bottles(Worldjournal). A case in point is when the water resources are polluted in California, the state’s development would also be damaged. Firstly, the citizens’ living quality would be declined,because of water is so indispensable in people’s daily
The water cycle is the everlasting movement of water on Earth. This process has been happening for millions of years. The water cycle is controlled by the sun's gravity. All living things depend on water to survive, so it is fitting to understand this natural process. The first stage of the water cycle is evaporation.
There will growth of water born diseases increasing health hazards and degradation of environment and ecosystems. This affects the natural environment system leading to exaction of some species. And the due contamination of water can also lower the production of agriculture products and other economy activities will decrease. If there will more water bodies pollution it also has negative effects on its environment there decline of economy of the country. Since more of the country budget have invest on the health sectors. The country major users of water are agriculture, intensification hydropower and industrialization. Urbanization is another significant challenge. Rural-urban migration increases pressure on urban infrastructure and services and cause environmental problems which will lead to water pollution.
The hydrologic cycle, also known as the water cycle, describes how all the water in the hydrosphere continually moves between oceans, lakes, rivers, land and atmosphere. During the course of the water cycle, water changes state from liquid to gas and back to liquid. The energy that drives the hydrologic cycle comes from the sun. The steps in the water cycle are evaporation, condensation, precipitation and runoff. Transpiration is an additional element in the water
The consumption of contaminated water can be dangerous for health reasons and several people have passed away from these water-borne diseases. Some of these diseases include Cholera, Typhoid, Dysentery, Giardiasis, and Malaria. These unfortunate diseases are currently the cause of numerous deaths, especially in small children. The availability of clean water can prevent many problems in low-income communities. The available resources for clean water are very rare, so these water sources need to pass through a process of water sanitation in order to just be sustainable to drink, “The world’s surface is made up of approximately 80% water, which is an indestructible substance.
“Water is the lifeblood of this planet. Every time a good is bought or sold there is a virtual exchange of water. Every time we interact with water, we change it, redirect it, or otherwise alter its state. We have never learned how to efficiently manage water.”(Cluckie, 2009) Ian Cluckie, Professor of Hydrology and Water Management, emphasizes the fact that humans can’t survive without water. Although water is a renewable resource that can replenish under hydrological cycles, our intervention has interrupted its natural cycle causing its supply to decrease.(Cluckie, 2009)