1Exposure to nitrogen dioxide in domestic environment is associated with snoring in children.
2The animation shows the concentration and movement through the atmosphere of nitrogen dioxide.
3However, nitrogen dioxide levels are falling and could reach legal levels within six years.
4But they emit far more nitrogen dioxide, a toxic gas blamed for health problems.
5The EU allows a maximum of 40 micrograms of nitrogen dioxide per cubic metre.
6Two of the Midlands' biggest cities are breathing in record quantities of nitrogen dioxide.
7These measures reduced record levels of nitrogen dioxide produced by car exhaust to safe levels.
8In London, the EU limits for nitrogen dioxide will not be met until after 2025.
9Even small increases in short-term exposure to nitrogen dioxide can increase asthma risks for children.
10All five study sites had significant drops in particle pollution and nitrogen dioxide, they note.
11The scientists compared the test results with records of nitrogen dioxide and sulphur dioxide pollution.
12There will be a massive increase in the levels of nitrogen dioxide near the Portals.
13Previously the government had said it would review only nitrogen dioxide emissions from VW diesel cars.
14Three roads in London have already breached UK and EU limits for nitrogen dioxide for 2017.
15High levels of ozone and nitrogen dioxide and these could induce coughs, breathlessness and other problems.
16The government subbed nitrogen oxides out and nitrogen dioxide in to its air pollution index calculations.
Translations for nitrogen dioxide