The Effect Of Nitrate Levels In Water On The Growth Of Radish Seeds.
Nitrogen, along with oxygen, is a necessary element for living organisms. Nitrogen makes up over seventy-eight percent of the atmosphere, and without it, life would not be feasible on planet Earth. Nitrogen partly makes up protein, and without protein, cells will lack proper nourishment to repair or build new tissues. Apart from humans and animals, plants satisfy their nitrogen requirements by absorbing ammonium or nitrate from soil water, which is needed for their growth. While nitrogen is important and beneficial to organisms, it also has many negative impacts. Nitrates in soil can seep into rivers, which will result in raised nitrate concentrations within water supplies
…show more content…
The Nitrogen Cycle is a five step process. The steps are nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Without the Nitrogen Cycle, there would be no life on Earth. Nitrogen Fixation (step one), is the removal of nitrogen from the atmosphere and the conversion of the nitrogen into a chemically active form. Nitrification (step two), is partly a result of Nitrogen Fixation. Fixation creates ammonium, and nitrification converts it from ammonium to nitrate. Assimilation (step three), is where the soil nitrate uptakes and incorporated into plant proteins and nucleic acids. This is where the nitrates enter the plant. Ammonification (step four), is where organic nitrogen compounds are returned to the soil and converted into ammonia. Denitrification (step five), is the removal of nitrogen from the soil, usually through the escape of nitrogen into the air. The Nitrogen Cycle is one of the ways that crops/plants grow. Plants need sunlight, water, and nutrients from the soil to grow. The Nitrogen Cycle is the method in which nitrogen enters the soil, and is later absorbed by the plant. Nitrogen can also enter water through pollution and runoff. Water with excessive nitrates can harm crops, and at an extent, harm those who eat the …show more content…
Drinking water is regulated because excess levels of nitrates can cause diseases and/or illness.The presence of nitrates in water also indicates the possible presence of bacteria and pesticides. The Federal Safe Drinking Water Act was passed in 1974, by Congress, and standards were set for water regulations. States are responsible for enforcing these standards. Potential health risks are difficult to predict and often unknown. Typically, the greater the uncertainty about potential issues with water, the greater the margin of safety built into the standard. The monitoring of water quality shows that nitrate is present in groundwater at low concentrations, but in areas of farming, nitrate levels tend to be above the standard limit. Domestic wells are pointed out as potential sources of contamination, as well as sewage disposal areas, and farming communities. Exposure to high nitrate concentrations can cause the “baby blue syndrome”, which is a condition where the body has a lack of oxygen. High nitrate concentrations in water can also cause or increase the risk of cancer, or methemoglobinemia, which is a disease caused by nitrates in