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Moving water dilutes and decomposes pollutants more rapidly than standing water, but many rivers and streams are polluted throughout the world. A primary reason for this is that all three major sources of pollution (industry, agriculture and domestic) are concentrated along the rivers. Industries and cities are usually located along rivers because the rivers provide remonstration and have traditionally been a convenient place to discharge waste. The Levels of Pollution at the Reproduce and Copper Rivers The investigation was conducted at two sites. At the Reproduce River In Woodland and the Copper River in San Fernando.

Time of Arrival and Weather at both Rivers: Reproduce River Time of Arrival: 9:05 Weather: Us any Copper River Time of Arrival: 1 0:28 Characteristic Results for Both Rivers: Comparison of Results for Both Rivers: Color: Reproduce River- Light brown Copper River- Dark brown The reasons for the color of both rivers are because: The Reproduce River contained less dissolved waste and flowed freely. The Copper River however, had a great deal of solid waste and possibly dissolved chemicals in the water. The Copper River was also very stagnant and had a great deal of moss and so appeared darker in color.

Phosphates Phosphates indicate soil erosion and fertilizer runoff into the rivers. Figures 1 and 2 show the levels Of phosphates found at both study sites. Figure 1: results Phosphate Results Figure: 2 Copper River Phosphate The comparison of the tables shows that the phosphate level was lower at the Reproduce River than the Copper River. Phosphates are usually present in the environment in low concentrations. High phosphate levels can come from man-made sources such as septic systems, fertilizer runoff and improperly treated waste-water.

The phosphates may have entered the Copper Rivers water as the result of surface runoff from the urban environment. Bank erosion, may have resulted in low levels in the Reproduce River. It is the measure of how many hydrogen irons are present. PH. Level: Reproduce River- the PH. At this river was 7. Copper River: the Ph. At this river was 6. Figure 3: Graph showing pH Level in Both Rivers. Ph. Group The Ph of both rivers was tested and measured. At the Reproduce River, the Ph measured 7 for every group which had tested the Ph and the Ph was rated at neutral, good quality.

The Ph at the Copper River measured 6 for every group tested. This tested pH of this river meant the water was slightly acidic because when adding substances to pure water the level of Ph will decrease. Many substances may have entered the Copper River from nearby drains so causing this slightly acidic PH. Color Color describes the sediments that are in the water. Figure 4 Bar Graph Showing Color at Both Rivers, the Reproduce River and The bar graph above, in Figure 4, shows the variation of the colors from dark to light brown at the Reproduce and Copper River.

At the Copper River three of the groups got the results of dark brown and at the Reproduce River 3/6 groups got the results Of light brown. The reason for the color results at the Copper river being that 3/6 groups with dark brown was that the area was highly polluted with chemicals and garbage from the industries and buildings that surrounded it. The reason the 1/6 group that got the result of dark brown at the Reproduce river could had been, the Caretaker of the river was weeping the stairs that was near the water, causing it to look dirty or appear dark brown and that group may have collected this water.

Also fishes and crabs disturbed the soil of the bed making the water murky at times. In general the results proved that the water was light brown at the Reproduce River. Temperature Water temperatures have a direct link with toxins dissolved, salinity and even dissolved oxygen. Figure 5 Graph Showing Water Temperatures in Both Rivers. Temperature ICQ Group The water temperature was tested with a thermometer by holding it in the water before recording the reading. As water temperature get too far above or below this preferred range, the number of individuals of the species decreases until there are eventually none.

Also because Of its influence on water chemistry. The rate of chemical reactions increases at higher temperature. The shaded river blocks out the sun which indirectly blocks the heat energy created from the sun. This therefore will reduce the water temperature because water temperature increases with heat. Nitrates High levels of nitrates indicate waste products from humans, animals, fertilizer run off, urban runoff and waste water discharged. Figures 6 and 7. Tabbies Showing Nitrates in Both Rivers.

Figure 6: Reproduce River Figure 7: Copper River Nitrates levels were higher at the Copper River because if the excess of waste example litter etc. And gas in the air emitted for the neighboring industries as well as the vehicles. Nitrates levels were not as high as the Copper River because of less waste and its environment was rural therefore not many industrial sites were nearby which could’ve been a harm to the river. Tu rapidity Turbidity measures the angle or beam Of light entering the water. Light refraction at 900. Figure 8. Turbidity Graph Showing Turbidity in Both Rivers.

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