Nitrogen oxides are released during manufacturing of nitrogen fertilizers. Nitrogen can be fixed by lightning that converts nitrogen and oxygen into (nitrogen oxides). Vessels containing liquid nitrogen can condense oxygen from air. Wastewater may contain high levels of the nutrients nitrogen and phosphorus. Sulfur improves the efficiency of other essential plant nutrients, particularly nitrogen and phosphorus. These compounds are composed of elements such as carbon, hydrogen, oxygen, nitrogen, and phosphorus. The tundra soil is rich in nitrogen and phosphorus. Increase in input of nitrogen and phosphorus generally causes Cyanobacteria to bloom. These are deficient in nitrogen, phosphorus and humus. They extended this to enriching compounds of carbon, nitrogen, and oxygen. These systems can greatly reduce emissions of oxides of nitrogen and particulate matter. Phosphonamidates are related to phosphonates by substitution of an oxygen atom for a nitrogen. Corona causes degradation of electrical insulation and emission of ozone and nitrogen oxide. The same is true for carbon, nitrogen and oxygen. High temperature also leads to production of nitrogen oxides.