The reduction in river water quality is clear indicator of aquatic pollution. The study from (Muyibi, S. A., Ambali, A. R., & Eissa, G. S., 2008) state that 95% of water source in Malaysia comes from the inland river systems. Pollutants such as heavy metals, pesticides and herbicides are some of the pollutant that propose health hazards to aquatic life and human beings. Consumption of fish, prawn or cockles that being accumulated by heavy metal pollutants might result in human health disease. Herbicide and pesticide contamination may lead to chronic long-term illness and death in humans as well as impair the fertility and development of both humans and aquatic
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
There is also deforestation. The clearing of land for agriculture that often leads to water pollution, when soil is stripped of its vegetation it becomes prone to soil erosion, which leads to increase in murkiness of water which causes the block of the gills of fish. Plants at the bottom cannot then photosynthesize as the sun’s rays do not reach them. Increase the disease as bacteria uses soil particles as a method of transportation to the water. Then there is destruction of wetlands.
Literature Review Water pollution Water pollution is the contamination of water bodies such as lakes, rivers, oceans, aquifers and groundwater that very often causes by human activities. Water pollution occurs when pollutants such as particles, chemicals or substances that make water contaminated, discharged directly or indirectly into water bodies without enough treatment to get rid of harmful compounds. Pollutants get into water mainly by human causes or factors. Water pollution can be a Point-source, Non Point-source, or transboundary in nature (EPA 2013). Point source pollution happens when the pollutants when one source such as factory disposal comes into contact with the water source.
Ultimately, climate change is likely to have a negative impact on countries and make them increasingly difficult to meet urban and agricultural water needs. Among the challenges ahead, measures are already being taken for the mitigation of climate change with water supply and disposal. The recycling of wastewater can promote employment within irrigation systems. Treated wastewater and also surface runoffs can be deliberately percolated (groundwater replenishment) and then used again later. Flooding events can be mitigated through dykes or mobile flood protection systems.
And it’s important to study because Water is essential to life. Yet water pollution is one of the most serious ecological threats we face today. (Water Pollution) (The Importance of Clean Water) It affects to animals, humans, sea creatures. For humans, you will get a stomach ache at the least. (How Does Water Pollution Affect Humans?)
Agricultural pollution is considered the major pollution of water (Mihov). Oil pollution results from pouring things like used car oil and paint into drains. Other sources of pollution include phosphorus from household wastewater and sewage that also degrade the presence of oxygen in rivers, disposal of solid waste into rivers, improper waste disposal, animals washing and wallowing in the river, and dumping human remains that may welcome infectious diseases (Hudda, S.) Human activities such as agriculture produce the main source of nutrient pollutants like fertilizer and sewage systems are considered as one of the main pollutants of freshwater bodies. (Mihov, S. WWF) Toxic substances such as heavy metals greatly affect the chemical properties of water (Mihov). Contamination from industrial sources is also a common source of
In return it will affect the lake water and also the health of all those who depend on the lake. There exist many types of pollution. In following we discuss few types briefly: egin{enumerate} item extbf{Nutrients Pollution}: Main source of this pollution is sewage, wastewater and fertilizers that contain too much level of nutrients and can make water undrinkable. If nutrients pollution end up in water bodies, it encourage weed growth. item extbf{Surface water pollution}: Nitrate, Dissolve solids , Dissolve oxygen and many others are the indicators of water surface pollution.
Other health associated problems includes poor blood circulation, skin lesions, vomiting and damage to the nervous system. This diseases or health problems are leading cause of death for humans across the globe. Acid rain is also one of the effects of the water pollution. It contains sulfate particles which are harmful fish or plant life in lakes and rivers. Higher acidity usually hinders some fish and water plants from reproducing, growing and surviving.
WATER POLLUTION IN ELURU CANAL – VIJAYAWADA Introduction: Water pollution is referred to the contamination of water bodies such as lakes, ponds, canals, rivers, oceans and ground water etc by physical and chemical substances. This occurs when pollutants are directly or indirectly discharged into the water. It leads to environmental degradation effecting the plants and organisms living in the water bodies. Water pollution may also occur from natural causes such as sedimentation, volcanoes, storms, floods, earthquakes etc. Though earth is covered by 70% of water, hardly 2% is the drinkable water.