sulphur dioxide造句
1. Sulphur dioxide is the main precursor of acid rain.
2. Sulphur dioxide is a compound of sulphur and oxygen.
3. Coal power stations release sulphur dioxide into the atmosphere.
4. Sulphur dioxide is one of several pollutants that are released into the atmosphere by coal-fired power stations.
5. Sulphur dioxide and nitrogen oxide combine to form acid rain.
6. Sulphur dioxide is a pollutant and a major contributor to acid rain.
7. The sulphur dioxide level in the air was 32 parts per billion.
8. The fires produced 20,000 to 40,000 tonnes of sulphur dioxide as well as many thousands of tonnes of oxides of nitrogen.
9. Nox, together with sulphur dioxide, is one of the leading contributors to acid rain pollution.
10. The sulphur dioxide level in Belfast was 32 parts per billion while the nitrogen dioxide level was 48.
11. Sulphur dioxide emissions would also increase if that strategy were implemented.
12. The result has been a halving of sulphur dioxide emissions in the flue gases..
13. This stipulates that emissions of sulphur dioxide must be cut to 10 million tonnes below 1980 levels by the year 2000.
14. The government is committed to reducing sulphur dioxide emissions by 60 percent to their 1980 levels by 2005.
15. Recorded emissions of sulphur dioxide were 2.67 million tonnes in 1992, while nitrous oxides totalled 701,645 tonnes.
16. Levels of sulphur dioxide in the air reached 2,400 microgrammes per cubic metre over the weekend.
17. Commercially dried apricots are exposed to sulphur dioxide to preserve their colour, before they are dried in hot air.
18. Sulphur dioxide and carbon dioxide are two common chemical compounds.
19. Although anthropogenic emissions of sulphur dioxide account for only half of the total global emission, they tend to be very concentrated.
20. This staining on marble is the result of dry deposition from sulphur dioxide gases produced by the burning of fossil fuels.
21. The maps will be used to show that current plans to reduce sulphur dioxide emissions from power stations will meet international commitments.
22. Government officials have acknowledged that existing policies to limit acidic emissions - notably of sulphur dioxide - are inadequate.
23. The gas is cleaned prior to burning and the sulphur dioxide and nitrogen dioxide, thought to contribute to acid rain, removed.
24. The process uses a natural gas flame to break down the effluent into sulphur dioxide.
25. Removing these areas of high sensitivity will make targets for reduction of sulphur dioxide emissions easier to reach.
26. Apart from general operating conditions, it has set emission limits for sulphur dioxide, nitrogen dioxide and carbon monoxide.
27. The basic unit of trade will be the right to emit one ton of sulphur dioxide into the atmosphere each year.
28. And burning coal, of course, produces, carbon dioxide as well as sulphur dioxide.
29. Findings include: Some 600 million people live in urban areas where the average level of sulphur dioxide pollution endangers their lives.
30. Experts have described the coal as similar to natural gas in terms of its sulphur dioxide content.
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