The pollution of this ground water is caused by toxic chemicals (fertilisers, pesticides, etc.) that soak through the ground and into the wells and aquifers below the earth’s surface. This contaminates the water thus making it undrinkable and forming the second type of pollution, namely groundwater pollution. As some viruses and bacteria are water born, microbiological pollution is found to be one of the most dangerous types of water pollution as anyone who comes in contact with the contaminated water risks becoming dangerously ill. Majority of the organisms found in water are
Recharge by runoff from irrigation water into groundwater as well as leaching of agrochemicals cause serious groundwater contamination problems. The clearing of natural vegetation and ploughing up of virgin land for new cultivation also affect the groundwater quality. Irrigation is one of the major sources of salinity in the soil through which rainwater flows to the water table. The dissolution of these salts finally
The cover of UNEP publicity document, 1987 Introduction Desertification is an environmental challenge facing certain areas of the world today, it is the destruction of land where land has become arid and barren, and therefore vegetation growth becomes impossible due to the lack of nutrients and water in the soil. The causes of desertification are due to a multitude of factors, including climate change, human misuse of land and natural disasters which all contribute to the problem, but not one factor alone can be underlined. The areas of the world which are affected by desertification are located within The Tropic of Cancer and Capricorn, North American Great Plains Central Asia and the Mediterranean amongst other areas in the world. The problem is extremely difficult to detain and costly. The negative impact creates even more problems in countries where land is scarce and people have little commodities to supplement their income and sources of food can become limited, with crop plantations and wild life unable to grow.
Another place where the pollution of water is at the critical point is Sungai Klang where the pollution really affected the community at that place due to the stinky smell that come from the river, the smell that come from the river is caused by the rubbish that block the flow of water. The pollution in Klang also cause the water source not safe for the daily use such as for washing and drinking. Industrial waste come from the industrial, the waste from the industrial such as paper, an example of industry that give impacts to the water is paper industry as it write words, drawing and printing which they used ink. Inside the ink was the ink pigment which the pigment was not soluble in water, by taking example of white ink contain titanium oxide as the pigment. The last factors that contribute to water pollution is the ballast water tank where the ships carried water together with the organism that were placed in the ballast water tank
Indirect impact due to land use change from organic to inorganic farming leading to leeching of chemicals in nearby water bodies, Persistent Organic Pollutant such as DDT, herbicides, insecticides into the water bodies. The consequences of industrial plants, mining, urban development and timbering are destruction of aesthetic beauty of landscapes, physical disturbance of landscapes and creating open pits. Due to this impact the natural habitats of flora and fauna is disturbed and causes rapid extinction of endangered species of Mongolia. Particulate matter is released in the air reducing the air quality, which infact is unsafe for the species present in the area and people living nearby. The pollutant in the water causes destruction or imbalance in the ecosystem of marine
Michael Wales Professor Latimer ENVI 110 May 29, 2016 Ground Water Pollution The world today has many forms of contaminations, meaning forms of pollution. What is Pollution? Pollution is presence of matter or energy whose nature, location, or quantity directly or indirectly alters characteristics or processes of any part of the environment, and causes or has the potential to cause damage to the condition, safety , health, or humans, welfare of animals , plants, or property. The different types of pollution are: water pollution, air pollution, soil pollution, thermal pollution, radioactive pollution, noise pollution, and light pollution. Water pollution is one of the main pollutions in the world.
3- toxic waste in the water will alter the overall chemistry of the water where cause changes in acidity, temperature, conductivity this will effect on marine life. 4- Marine food sources are contaminated 5- Altered water temperature can kill the marine life. Effects of toxic waste on soil: 1- decrease soil fertility so decrease in soil yield. 2- Would further result in soil erosion. 3- disturbance in balance of soil components.
Excessive amount of nitrogen affects the water quality when agricultural runoff flows to the estuary and affects aquatic environment. These runoff had cause changes in aquatic environments and leads to Eutrophication, High Biochemical oxygen demand in aquatic environment, and death of aquatic organism.
BIOLOGICAL METHODS: Wastewater derived from domestic, industrial and other activities is mostly hazardous to human beings,animals and plants so they must be treated prior to disposal . However conventional waste water treatment technologies are not effective, due to the high operational cost of the treatment processes and highly skilled technicians are required which adds to the cost. Current pre-discharge treatments of industrial waste water are routinely performed using energy intensive ,unsustainable low performance treatment technologies which utilize physical, chemical and partly biological treatment processes. Due to the presence of these compounds such as phosphorus,carbon, nitrogen and metal ions in waste water the treatment using conventional methods becomes ineffective and partially treated waste water remains undesirable for discharge. Chemical treatments involves the addition of high
Contamination of groundwater can result in poor drinking water quality, loss of water supply, high clean-up costs, high costs for alternative water supplies, and health problems (Balakrishnan et al., 2011). However, due to the high degree of contamination of surface water and their dry up during dry seasons because