"We have the ability to provide clean water for every man, woman and child on the Earth. What has been lacking is the collective will to accomplish this. This is the commitment we need to make to the world."
Jean-Michel Cousteau
The Issue:
Recently, the issue of drinking water quality has become a matter of great importance. Hydrogeologists and water resource managers have realized that the increased demand for drinking water, due to population growth, has placed a huge burden on our nation's groundwater resources. Groundwater resources make up a minute 0.31% of the world's water supply. Groundwater quality can be defined in terms of the concentration of its chemical constituents relative to a variety of potential uses.
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Both of these phenomena occur naturally. The chemical alterations that occur in the soil and atmosphere during the hydrologic cycle are pivotal in maintaining the natural equilibrium. However, due mostly to human intervention, the water is becoming poisoned as it seeps into the Earth.
The Science Behind the Issue:
The four main types of groundwater pollution are industrial, domestic, agricultural and salt-water intrusion. Industrial pollution reaches aquifers through used waters as I have already briefly explained. Used waters can contain chemical compounds and trace elements like metals at high temperatures. Radioactive pollution from nuclear power plants is also carried by used water, as is rain that infiltrates through waste disposal sites. Pipeline breakage as well as other unforseeable accidents also add to industrial pollution. Irrigation and water carry away fertilizers, minerals, salts, herbicides and pesticides. This activity is known as agricultural pollution, and it causes nitrate levels to rise excessively. Environmental pollution is due in large part to seawater intrusion in coastal aquifers (Fried 1975). Man-made pollution reaches the aquifer by rain and the rain subsequently infiltrates sanitary landfills.
Road-runoff and domestic wastewater are non-point sources that also add to groundwater pollution. Household productes, many of which contain
There are three main mechanisms by which the chemical composition of groundwater, which is our natural source of drinking water, may be changed: by natural processes, by man's waste-disposal practices such as those for sanitary wastes, liquid industrial wastes, solid wastes, and radioactive wastes, and by spills, leaks, and agricultural activities and other sources unrelated to disposal. The degree of risk posed by contaminants varies according to many factors. These include the volume and toxicity of the contaminant, its concentration in the aquifer, its persistence in the environment, and the degree of human and environmental exposure to the contaminant. In addition, the number of persons affected, or likely to be affected, over time and the percentage of available groundwater both locally and regionally should be taken into consideration. If the contaminants in the groundwater exceed the standards set for drinking water by the federal government, for example, then the water is hazardous for the use for which it was designated under the standards. These standards include, however, only a limited number of chemicals, and thus they do not necessarily protect humans or the environment against either the short-term or the long-term effects of every contaminant that might be found in
Water is probably the most important resource we as people have. Humans can survive without food for several weeks, but without water we would die in less than a week. On a slightly less dramatic note, millions of liters of water are needed every day worldwide for washing, irrigating crops, and cooling industrial processes, not to mention leisure industries such as swimming pools and water-sports centers. Despite our dependence on water, we use it as a dumping ground for all sorts of waste, and do very little to protect the water supplies we have.
There is a water crisis which faces many parts of the world and it is a threat to survival of human beings since humans are primarily dependent on water. Shortage in drinking water is beginning to show its effects in first world countries, but is a current major problem facing lesser developed countries which have not taken drastic steps to harvest water and purify it to make it safe for human consumption. In developed countries the population growth has strained available water resources and stretched the ability of governments and private firms to provide safe drinking water to the vast majority of the population. Seventy one percent of
Water pollution has become a huge factor in the crisis of earth contamination. It is defined as the addition of harmful chemicals to natural water. Sources of water pollution include industrial waste, marine dumping, global warming, oil pollution,
Water pollution can affect every body of water that is linked to the source, because water tends to travel everywhere due to the water table. Water contamination comes from multiple sources, such as dumping waste, which is a direct way. There is also indirect pollution, such as runoff from pesticides, herbicides, and fertilizers soaking into the ground and moving with the ground water into rivers. Ethanol crops are large
Since I live in the Texoma area the majority of our drinking water comes from Lake Texoma. I think the three sources of groundwater contamination that might affect groundwater in my area would be human-made materials that are littered into the lake, agricultural activities, and human/animal wastes. There are a lot of people in the area who like to go fishing near the lake and drinking alcoholic beverages. These people throw their beer cans and all of their trash into the lake. They also urinate and defecate into the lake as well. There are many nearby farms and ranches to the lake and with all of the flooding water has run-off from these areas back into the lake.
Another way that water can be polluted is with chemicals from factories. Factories use water from streams, river, and lakes to power and cool off their machinery. This used water contains many chemicals from the factory processes that are released back into the normal water (Lenntech, 1988-2016). This released water is also warmer, causing the whole body of water to heat up. This causes lower oxygen levels, which can disturb the organisms living in the water (Lenntech, 1988-2016).
Groundwater pollution is a major problem that is growing in all over the world. Of course the united states America also facing this problem. People of Mississippi State are worried about groundwater pollution due to the several human activities. Groundwater is a main source of their water supply. Disposal of solid waste in landfills is an economic option for many municipalities in developing countries where alternatives like incineration and composting are costly. However, groundwater pollution from the leachate generated within the landfill and migrating through the bottom liner material into the underlying groundwater aquifers remains a major public health concern I studied chemical parameters of groundwater in Alcorn State University as a part of my project.
All around the world, countries are fighting to keep their drinking water clean. Whether it’s streams, rivers, or lakes, countries have taken great measures to maintain high quality drinking water for both human consumption and animal consumption. Countries must first understand the sources of the polltion, then determine the best methods to eliminate the pollution. Clean drinking water is a valuable resource and a the key to human survival. Plants and animals also depend on water for their growth, so all water must be kept clean. The major contributors to water pollution can be classified in three categories, industrial, agricultural and municipal.
The largest source of contamination is runoff from land. Toxic runoff can be sewage, rainwater flowing over exposed topsoil, flooding or agricultural runoff. Rain can cause runoff of chemicals or waste that can seep into creeks, rivers and other waterways that lead to the ocean. Some of the chemicals found could be antibiotics or waste from animals, pesticides from crops or from pollutants, originating in the air, which have settled on land and washed away. Unless a solution to pollution runoff is found, this type of contamination will continue indefinitely and contribute to the deterioration of the ecosystem in the
As the worlds population grows, it is forced by circumstances that it has created to face the limitations of the worlds resources. Most people in the US have always been fortunate enough to have enough of whatever they wanted. When something they like breaks or wears out, they throw it away or buy a new one, and they often don’t even make an attempt to repair an item. They neglect basic maintenance until they damage their belongings beyond repair, and expect that they’ll always have enough. But some things are beyond their control, beyond there power or financial ability to replace or repair. The world’s drinking water supply is one of these without concern, without attention, without preventative maintenance and reclamation and
The purpose of this report is to propose a solution to the problem of reduced drinking water quality due to chemical pollution. Some bodies of water in the United States are becoming polluted from chemicals and restrictions are needed to protect drinking water quality.
Interactions between groundwater and surface water are complex. Consequently, groundwater pollution, sometimes referred to as groundwater contamination, is not as easily classified as surface water pollution.[7] By its very nature, groundwater aquifers are susceptible to contamination from sources that may not directly affect surface water bodies, and the distinction of point vs. non-point source may be irrelevant. A spill or ongoing releases of chemical or radionuclide contaminants into soil (located away from a surface water body) may not create point source or non-point source pollution, but can contaminate the aquifer below, defined as a toxin plume. The movement of the plume, a plume front, can be part of a Hydrological transport model or Groundwater model. Analysis of groundwater contamination may focus on the soil characteristics and site geology, hydrogeology, hydrology, and the nature of the contaminants.
It is an essential resource for sustaining life as well as central to agriculture and rural development, and is intrinsically linked to global challenges of food insecurity and poverty, climate change adaptation and mitigation, as well as degradation and depletion of natural resources that affect the livelihoods of millions of people across the world. According to the World Bank, (2010) report, water is a scarce resource with multiple interwoven uses that range from drinking water, energy, irrigation, manufacturing things, transport of people and goods among others. The report further states that, more than one-sixth of the Worlds’ population does not have access to safe drinking water, with 80% living in rural areas thus access to water cannot not be guaranteed globally.
What makes water pollution occur? Firstly, urbanisation in which people move to the big cities can cause physical disturbance on land due construction of houses, industries, roads, etc. According to Mohan Rao,1971; CPHERI, 1972 water pollution occurs when there is a removal from the industrial sector, emissions from municipal waste, and elimination of defective products affect water quality. In addition to construction works, chemical pollution from industries and mines are also contributing to even worsened water pollution. Over population in certain cities causing inadequate sewage collection and treatment with unmanaged litter, plus increase in fertilisers to grow more food. This results in an increase in nutrients (nitrates and