"82a60ed8-5414-4ce0-858c-c50b27b12bc8" . "NITRIC OXIDE"^^ . "Nitric oxide (NO) is a colorless gas, the most common form of nitrogen emitted\ninto the atmosphere, either by fuel combustion or due to natural emissions. \nNitric oxide is interconverted with nitrogen dioxide fairly readily in the\natmosphere, resulting in catalytic cycles leading to ozone formation in the\ntroposphere and ozone loss in the stratosphere."^^ . .