Water reuse can reduce the amount of freshwater diverted from sensitive ecosystems, as well as the amount of wastewater â and the pollution it carries â discharged to waterways. In the case of nonpotable reuse, it means avoiding the use of precious potable water where that level of quality is not required. Because of nutrients retained in water when it is not treated to drinking water standards, irrigating with recycled water can reduce chemical fertilizer use.
An abnormal EKG can mean many things. Sometimes EKG abnormalities are a normal variation of a heartâs rhythm, which does not affect your health. Other times, an abnormal EKG can signal a medical emergency, such as a myocardial infarction (heart attack) or a dangerous arrhythmia.
1 Heart attack or ischemia. 2  During a heart attack, blood flow is affected in the heart, and heart tissue can begin to lose oxygen and die. 3  This tissue will not conduct electricity as well, which can cause an abnormal EKG. 4  Ischemia, or lack of blood flow, may also cause an abnormal EKG. Ischemia, or lack of blood flow, may also cause an abnormal EKG. 2  Heart rate abnormalities. 3  A typical human heart rate is between 60 and 100 beats per minute. 4  An EKG can determine if the heart is beating too fast or too slow.