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1, However, this statistic conceals that levels of nitrogen dioxide have changed little since 1983.

2, Nitrogen dioxide levels in central London rose by 40 percent between 1979 and 1989.

3, Second,(http://sentencedict.com/nitrogen dioxide.html) nitrogen dioxide emissions question.

4, Nitrogen dioxide and ozone may cause pulmonary edema.

5, A portable on - spot measurement of nitrogen dioxide instrument was developed based on photometry.

6, NAAQSs for carbon monoxide, particulates, sulfur dioxide, nitrogen dioxide, hydrocarbons, ozone, and lead.

7, Researchers also blamed exposure to nitrogen dioxide, carbon monoxide and particulates for the increase.

8, It is usually caused by the emission of particulates or nitrogen dioxide.

9, The sulphur dioxide level in Belfast was 32 parts per billion while the nitrogen dioxide level was 48.

10, The gas is cleaned prior to burning and the sulphur dioxide and nitrogen dioxide, thought to contribute to acid rain, removed.

11, The southern California air basin is the only area in the country that still fails to meet the nitrogen dioxide standard.

12, Apart from general operating conditions, it has set emission limits for sulphur dioxide, nitrogen dioxide and carbon monoxide.

13, Of those figures, Britain contributed 1.84 million tonnes of sulphur and an equal amount of nitrogen dioxide.

14, Changes in sensory perception are the most sensitive indicators of the presence of nitrogen dioxide.

15, Kinetic of the gas-liquid chemiluminescence reaction of luminol and nitrogen dioxide was studied by stopped-flow study in this thesis.