Water pollution is water that is not safe and not healthy for people and animals to drink or to wash in. It is particularly dangerous to water plants and animals. Polluted water is also particularly dangerous to people who get their water directly or dam. In South Africa the scarce fresh water is decreasing in quality because of an increase in pollution and the destruction of river catchments, caused by urbanisation, deforestation, damming of rivers, destruction of wetlands, industry, mining, agriculture and accidental water pollution. Water pollution is a major global problem which requires ongoing evaluation, it suggested that it is the leading worldwide causes of deaths and diseases. CAUSES OF WATER POLLUTION URBANISATION Chemical pollution …show more content…
The parasite is in the form of a worm, moves to the intestines or bladder of the infected person some symptoms of Bilharzia are headaches, abdominal pain, diarrhea bladder infections, fever and swollen veins. Within South Africa, Bilharzia is most common in the Northern Province and Kwa Zulu –Natal. CHOLERA Cholera is a disease that is caused by bacteria (Vibrio cholera) that is spread through water contaminated by faeces from an infected person. People who do not wash their hands after using the toilet can spread the disease. Cholera can be found in most places where there is poor sanitation. Some symptoms of Cholera are diarrhoea and vomiting. People who have the disease should drink plenty of clean water to prevent dehydration. WAYS TO PREVENT WATER POLLUTION Avoid buying package water as far as possible. The best policy to adopt is to carry a bottle of water when you step out of the house. This has advantage: eliminate your contribution to pollution to pollution relate to plastic bottles. Try using natural fertilizers and pesticides as far as possible. If you live close to water try to plants lots of trees and flowers around your home, so that when it rains chemicals from your home does not easily drain into the
Water pollution before the Gilden Age greatly impacted public health, but it was often ignored until progressives pushed for change. Sewage was the biggest factor in water pollution, and it “was primarily a public health problem, but it also damaged private property, recreation and fisheries”. The lack of waste disposal caused many people to be infected with diseases which led to progressive policies being formed to fix the issue of water pollution. In 1899, The Rivers and Harbor Act was passed which prohibited the discharge of waste into navigable waters, and the sanitation of water greatly improved after epidemiologists found the negative effects of waste disposal. The improvement of the sanitation of water impacted public health by decreasing deadly outbreaks of diseases like cholera.
Disease caused by pollution might be caused by water pollution or air pollution, this is when the environment around a person is dirty. Examples are: Rickets, anemia,
The situation could be changed by developing new farming techniques or better machinery that destroys the pests in a non-toxic way to humans. I don’t see to many changes though in the future to the current use of pesticides, it is a well-known and proven
Drinking contaminated water can cause different types of cancers and also infertility and birth defects due to of the presence hazardous chemicals. Impoundments that have not been built or properly closed off have led to the death of many animals and also health issues in
Cholera had initially touched base in Britain, from Chinese importing ships, in 1831. The poor got to be powerless to Cholera, since they dwelled in swarmed lodging. Cholera could without much of a stretch spread in extensive urban areas, in particular London. Streams in these urban areas were allotted a double reason. The waterways were a wellspring of H₂O as well as, a sewage transfer.
Bubonic-characterized by painful swollen lymph nodes or ‘buboes’- is the most common form. Plague epidemics have occurred in Africa, Asia, and South America but since the 1990s, most human cases have occurred in
Intro: Water pollution has caused so many problems to our waterways that no one really knows how to help. Water pollution caused; dead zones, oil spills, garbage floating around, and unsafe drinking water. People disagree about water pollution because, people have found ways to improve and help out the problem that water pollution has caused around the world. Others believe that that water pollution has created situations and are in the process of figuring out solutions. Marine life habitats are getting destroyed, marine life is declining everyday, how and where the garbage is getting into the oceans, and the drinking water is becoming seriously unsafe to drink.
Rivers that passed through urban areas became a holder for human waste products. Factories began releasing pollutants directly into rivers and streams. By the 1850’s inhabitants began experiencing epidemics of cholera and typhoid. In 1969, chemical waste releasaed into Ohio’s Cuyahoga River caused it to burn into flames and the waterway became a symbol of how insutrial pollution was destroying America’s natural resources. Aditionally, mining activties also affected water pollution by increasing the amount of toxic elements released into the environment.
Pesticides and How it Works Abstract: A pest is "a plant or creature unfavorable to people or human concerns". Pesticide is Chemical or natural substance intended to slaughter or retard the development of pests that harm or meddle with the development of products, bushes, trees, timber and other vegetation coveted by people. Keywords: Antimicrobials, Antimicrobials, Herbicides Introduction:
2.1 Urbanization and river water quality Due to movement of people from rural to urban areas, physical growth of the urban areas occurs, which ultimately leads to the urbanization, Over the past several years, river systems have always been extensively altered to meet various human demands, which led to them becoming the most intensively influenced ecosystems by human activities on the Earth (Nilsson, et al., 2005 )]. ‘’Among these human activities, the influence of urbanization on river systems was the most significant, and 60% of river systems were changed profoundly because of urbanization in the world’’ as cited by (Nilsson, et al., 2005 ) Recently, a number of studies have been done to understand the effects of urbanization on river water quality. The study manifested on Pearl River Delta Economic Zone is in China, that there is a positive correlation between the rapidity of urbanization and the pollution levels of urban river water.
Pollution is the introduction or release of substances or energy that decrease the quality of the marine environment. Many pollutants are toxic of harmful to marine life (Castro and Huber, 2010). South Africa is known around the world for being one of the most diverse marine environment in the world, with 83% of the known fish families residing in South Africa (Van der Elst, 2007). There are also many marine species that are endemic to South Africa, which means they are only found in South Africa. Almost 30% of the South African population lives on the coastline (Taljaard et al. 2006), which has led to the urbanization of the coastlines and which then led to the industrialization of these areas.
Water pollution is a serious issue as not only is water the most precious natural resource, but all sources of water support life that is very necessary for the survival of the planet. Water pollution destroys life and ecology and such damage is irreparable. Those who are still not serious about water pollution must also remember that the pollutants present in water not only destroy the life in the rivers and oceans, but also affect our food chain. Many people have the wrong notion that since they are not disposing the pollutants in the water they are not to blame. These people forget that 70% of the earth is covered by water, and any activity on the land can wash to the seas and oceans.
Malaria is the most common disease in third world countries with a tropical climate; the disease is caused by a parasite called Plasmodium, which is transmitted through the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells. Symptoms of malaria include fever, headache, and vomiting, and usually appear between 10 and 15 days after the mosquito bite. If not treated, malaria can quickly become life-threatening by disrupting the blood supply to vital organs. In many parts of the world, the parasites have developed resistance to a number of malaria medicines.
LITERATURE REVIEW What is water pollution? As the country is becoming more and more populated, the demands for social services have increased significantly. This has led to an increase of the pollution in many developing towns such as Ga-kgapane. The most disturbing and problematic forms of pollution in Ga-kgapane is the pollution of the natural streams. Water pollution is when there is a build of one or more substances in water to such an extent that it causes problems for animals or plants.
Water is the most important component found on the surface of the earth because it is source of life for living creatures. However, water pollution has become a global concern. Water pollution can have several forms from diverse sources. It is expected that there will be a lack of clean water in next few decades due to pollution. Nile river water in Egypt is the focus of attention of many studies due to many reasons.