nitrogen oxides air pollution
The Gas nitrogen oxides (NOx) there are two kinds, i.e. the gas nitric oxide (NO) and nitrogen dioxide (NO2). Both kinds of these gases have different properties and both are extremely harmful to health. NO Gas that pollute the air difficult visually observed due to these gases are colorless and odorless. Whereas NO2 gas when you pollute the air easily observed from a very pungent smell and the colour is reddish brown. Air gas containing NO in the normal limit is relatively safe and harmless, unless NO gas are in high concentration. The high concentration of gas NO can cause disorders of the nervous system resulting in seizures. If this continues to be poisoning can lead to paralysis. NO Gas will become more dangerous if it's oxidized gas sehinggga gas into NO2.
Air which has been polluted by nitrogen oxide gas is not only harmful to humans and animals, but also harmful to plant life. The influence of NOx gas in plants, among others, the incidence of spots on the surface of leaves. At higher concentrations of the gas can cause necrosis, or tissue damage to the leaves. In a State like this leaf may not work perfectly as temapat the formation of carbohydrates through photosynthesis. As a result the plant cannot produce as expected. As many as 10 ppm NO concentration can lower the ability of photosynthesis the leaves up to about 60% to 70%.
Air pollution by NOx gases can cause the onset of Peroxy Nitrates are abbreviated Acetil with PAN. Peroxi Acetil Nitrates is causing irritation of the eye that causes the eye feels poignant and watery. Mix with other chemical compound PAN in the air can cause the occurrence of fog photos or Photo-chemical Smog Chemistry impaired environment.
The influence for health
Nitrogen dioxide are air pollutants generated in the combustion process. When present, the nitrogen dioxide nitrogen oxides are also found; a combination of NO and NO2 are collectively refer to nitrogen oxides (NOx).
At very high concentrations, which may only be experienced on the fatal industrial accidents, NO2 exposure can lead to lung damage that heavy and fast. Health effects may also occur at ambient concentrations are much lower as in the observation during the events of the pollution in the city. The evidence obtained suggested that the spread of possible ambient influences of chronic and acute, especially in the Sub-group populations affected by asthma.
NO2 oxidizing agent as being mainly the possibility of damaging cell membranes and proteins. At high concentrations, air duct will cause acute inflammation. Plus more, the spread in a short time--the influential to increased risk of respiratory tract infections. Although much of the control of the spread of that done, a fact clearly defines the relationship between the concentration or dose and the feedback is not enough.
For the dissemination of an acute, only very high concentrations (> 1880 Mg/m3, 1 ppm) affects the health of people; When people with asthma or lung disease are more susceptible to acute at lower concentrations.
