Acidic oxide Some non-metal oxides, such as nitrous oxide (NO) and carbon monoxide (CO), do not display any acid/base characteristics. Acidic oxides can also react with basic oxides to produce salts of oxoanions: Acidic oxides are environmentally relevant. Sulfur and nitrogen oxides are considered air pollutants as they react with atmospheric water vapour to produce acid rain. Although it is difficult to classify these oxides as acids, the property is manifest in reactions with bases. For example, carbon dioxide reacts with alkali. For this reason, alkali is kept in stoppered vessels to inhibit reaction with atmospheric carbon dioxide. In geochemistry complex silicates
Environmental issues in Georgia pollutants monitored in Georgia include particulate matter (total suspended particulates [TSP]), carbon monoxide (CO), nitrogen oxides (NO2, NO), and sulfur dioxide (SO2). In Georgia the public transport system is not sufficiently developed. A significant proportion of the population uses private vehicles as the preferred mode of transport. The number of private vehicles has grown rapidly over the past decade and has almost doubled in the last five-year period. Traffic has increased followed by industrial sources. The country has seen a sharp rise in the number of old, dirty diesel vehicles on the road over the last decade and pollution testing