Good Example Of Book Review On Declining Dissolved Oxygen Content AND Methods To Improve It

[Student’s last name]
[Subject name and number]
Deteriorating quality of water is now threatening global gains made towards access to safe drinking water. Although around 87% of the world’s population is having access to improved source of drinking water, but still the risk of water pollution remains high because of environmental and industrial factors. Furthermore, the quality of drinking water also declines over the time of its collection from the source as those pure sources are far-distant from people’s home. The whole process of deteriorating quality of water is eventually unbalancing the dissolved oxygen in the water, with human activities being the upfront reason for the same. For instance, excessive release of nutrients such as nitrogen and phosphates enter the water which significantly reduces the oxygen content in the water. This excess release is supported by human activities such as synthetic fertilizers and pesticides and agricultural and urban payoffs as well as effluent from sewage treatment facilities. Similarly, ever growing industrialization process, combustion of fossil fuels and sewage treatments are also accelerating nitrogen fixation by producing large volume of nitrates and ammonium within the atmosphere. Therefore, a fixed nitrogen enters the water body, which also reduce the level of dissolves oxygen in the water1.
Therefore, with level of dissolved oxygen carrying immense significance for survival of all living beings, we need to find methods to control the declining level of dissolved oxygen. For instance, strict parameters should be employed on industries to check level of nitrates and ammonium being released from their premises. In addition, the use of air stones and air pumps have been found to add oxygen to the water content, subsequently raising the levels of dissolved oxygen in the water levels.
1Water Quality Reference Guide. Student Guide (2010) , n.d

Bibliograhy

Water Quality Reference Guide. Student Guide (2010): n.d.