Essay On Fecal Pathogens

In the lab, the results concluded that the water is indeed not healthy to drink for humans. The tubes indicated that there presence of fecal pathogens; which there was more than one. If one was presence, the water makes it automatically not healthy to drink. The different factors that were measured was the dissolved oxygen in which is an important factor to the aquatic ecosystems where all aquatic animals need to survive. Natural waters are healthy, stable in a environment, and have the chance to support a diversity of aquatic high dissolved oxygen. Cold water is know to hold more dissolved water than warm water; in which dissolved water has an important water quality of measurements. Dissolved oxygen (DO) was at 24 C degrees with 4 ppm. The …show more content…
There are several impacts of organisms that live in the pond. Some impacts would be by being exposed to the sunglight, meaning that if the pond has little water flowing through the pond, then it can cause aquatic plants. Another impact with living organisms would be having low levels of oxygen. These organisms can grow, but at the same time die. The cycle will continue to flow with the release of the organism leaving their waste as they die. The release that they leave behind is decay into the pond and the nutrients help the cycle in the pond keep going. The results indicated a positive for fecal coliforms. Fecal coliforms, is a rod-shaped bacteria that is anaerobic and gram-negative. Bacteria can indeed survive in certain circumstances. Bacteria can survive in temperatures that are elevated and can decompose some substances that are organic. Coliform was place with 10 ml of water for 48 hours. Phosphate in water has indicated that its not harmful to humans nor to animals unless its present in a large amount of level. Unlike Dissolved oxygen in water, DO can be affected by aeration and diffusion. Levels of DO can also be affected by temperature and changes of