https://padlet.com/t_womble/oewkr74aj4nr en-us 2018-10-02 14:26:21 UTC 2023-02-18 16:00:24 UTC hello@padlet.com conroyla1 https://padlet.com/t_womble/oewkr74aj4nr/wish/291749216 Defined as the measure of acidity or basicity of a solution, the scale ranges from one to fourteen with seven being neutral in the middle. The closer you get to zero, the more acidic the solution is and the closer you get to fourteen, after seven, the more basic the solution is.]]> 2018-10-11 14:27:03 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/291749216 conroyla1 https://padlet.com/t_womble/oewkr74aj4nr/wish/293809308 Large changes in pH can be used to check if, and how much, a body of water is changing chemically]]> 2018-10-17 12:53:11 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293809308 conroyla1 https://padlet.com/t_womble/oewkr74aj4nr/wish/293810429 Large changes in pH can also be harmful to organisms that use the body of water as a home. Most species can only survive in a pH range of 5.5 to 7.5 while most plants can only survive in a range of 5.5 to 7.0]]> 2018-10-17 12:55:12 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293810429 hayke https://padlet.com/t_womble/oewkr74aj4nr/wish/293810457 Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air.]]> 2018-10-17 12:55:14 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293810457 hayke https://padlet.com/t_womble/oewkr74aj4nr/wish/293812444 In the United States, systems that use conventional or direct filtration methods turbidity cannot be higher than 1.0 nephelometric turbidity units (NTU) at the plant outlet and all samples for turbidity must be less than or equal to 0.3 NTU for at least 95 percent of the samples in any month.]]> 2018-10-17 12:58:31 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293812444 hayke https://padlet.com/t_womble/oewkr74aj4nr/wish/293813543 The units are NTUs. 1 NTU means that there is 1 milliliter of a suspended solid for one liter of water. ]]> 2018-10-17 13:00:14 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293813543 hayke https://padlet.com/t_womble/oewkr74aj4nr/wish/293814728 Human activities that disturb land, such as construction, mining and agriculture, can lead to high sediment levels entering water bodies during rain storms due to storm water runoff.]]> 2018-10-17 13:02:03 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293814728 hayke https://padlet.com/t_womble/oewkr74aj4nr/wish/293815161 High turbidity prevents sunlight from reaching certain depths of water which effect marine life. This can cause aquatic plants to not grow which some fish may require as a food source.]]> 2018-10-17 13:02:43 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293815161 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/293816470 Dissolved oxygen is the amount of gaseous oxygen dissolved in the water. ]]> 2018-10-17 13:04:59 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293816470 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/293816773 Dissolved oxygen enters the water by direct absorption from the atmosphere, by rapid movement, or as a waste product of plant photosynthesis]]> 2018-10-17 13:05:30 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293816773 conroyla1 https://padlet.com/t_womble/oewkr74aj4nr/wish/293818614 pH is also important to monitor in drinking water because the human body has a natural pH of around 7.4. If you consume too many acidic or basic things it places strain on the lungs and kidneys, which work hard to regulate pH on top of other things.]]> 2018-10-17 13:08:30 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293818614 t_womble https://padlet.com/t_womble/oewkr74aj4nr/wish/293819548 Nitrate the NO3 concentration that is found in water. It mainly is deposited through runoff from agricultural areas that has excess nitrate fertilizer]]> 2018-10-17 13:09:59 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293819548 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/293820469 If dissolved oxygen levels fall below a certain level, fish mortality rates will rise. Sensitive freshwater fish such as salmon cannot reproduce at levels under 6 mg/L. ]]> 2018-10-17 13:11:24 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293820469 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/293821197 When dissolved oxygen levels fall too low fishkill can occur. fishkill is when a large number of fish in an area of water die off. When a body of water is overproductive, the oxygen in the water may get used up faster than it can be replenished. this occurs due to overpopulation of fish in an area]]> 2018-10-17 13:12:33 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293821197 t_womble https://padlet.com/t_womble/oewkr74aj4nr/wish/293822250 High levels of nitrate in water can cause the death of fish and other forms of life in water.]]> 2018-10-17 13:14:18 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293822250 t_womble https://padlet.com/t_womble/oewkr74aj4nr/wish/293822509 High levels of nitrate can also cause algae blooms which can change how the whole ecosystem functions. It favors some groups of organisms over others which is harmful to the ecosystem near the body of water.]]> 2018-10-17 13:14:46 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293822509 t_womble https://padlet.com/t_womble/oewkr74aj4nr/wish/293824018 Symptoms of nitrate poisoning in humans include increased heart rate and breathing, and in bad cases it can change the color of blood tissue to blue or brown.]]> 2018-10-17 13:17:21 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/293824018 https://padlet.com/t_womble/oewkr74aj4nr/wish/298011800 2018-10-29 13:43:58 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/298011800 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/298014398 In a stable body of water with no stratification, dissolved oxygen will remain at 100% air saturation. 100% saturation means that the water is holding as many dissolved gas molecules as it can in equilibrium. At equilibrium the percentage of each gas would be equal to the percentage of that gas in the atmosphere.]]> 2018-10-29 13:48:04 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/298014398 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/298015649 2018-10-29 13:50:15 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/298015649 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/298016578 Two bodies of water that are both 100% air-saturated do not necessarily have the same concentration of dissolved oxygen. The actual amount of dissolved oxygen (in mg/L) will vary depending on temperature, pressure and salinity. As temperature increases the solubility of oxygen decreases, this means that warmer surface water requires less oxygen to reach 100% saturation than a deeper cooler water source.]]> 2018-10-29 13:51:40 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/298016578 weatherwaxco https://padlet.com/t_womble/oewkr74aj4nr/wish/298017713 2018-10-29 13:53:28 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/298017713 conroyla1 https://padlet.com/t_womble/oewkr74aj4nr/wish/299812216 pH levels can fluctuate daily due to photosynthesis and respiration in the water. The degree of change depends on the alkalinity of the water. Carbon dioxide is the most common cause of changes in acidity of water.]]> 2018-11-02 14:42:09 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/299812216 conroyla1 https://padlet.com/t_womble/oewkr74aj4nr/wish/299872394 Harmful effects become noticeable when the pH of water falls below 5.0 or rises to above 9.6. When pH is below certain levels, fish become susceptible to infections and physical deformities. Fish reproduction is affected at pH levels below 5.0 and fish start to die below a pH level of 4.0.  This forces the fish to relocate in order to survive. Water with a low pH is highly acidic and can burn a fish's skin. Younger fish are more sensitive to higher acidic water than adult fish.]]> 2018-11-02 16:18:30 UTC https://padlet.com/t_womble/oewkr74aj4nr/wish/299872394