"Nitrogen dioxide" is a type of gas that contains nitrogen and oxygen. It is produced by burning fossil fuels like coal and gasoline. This gas can be harmful to our health and contribute to air pollution. Full definition
High levels of nitrogen dioxide shorten lives, by increasing the risk of heart attacks, strokes and respiratory disorders. (newscientist.com)
Similar how they are accountable for their own nitrogen dioxide limits in cities? (politics.stackexchange.com)
The courts have recognized a cause - and - effect relationship between highway constructions, nitrogen dioxide emissions, and respiratory ailments. (rapidshift.net)