1. Unpolluted ecosystems release only small quantities of nitrate in streams.

2. Our roads were clean and unpolluted, and in our cities the air was not polluted with gases from a million exhaust-pipes.

3. It was said to be unpolluted water in which Xi Shi had taken baths.

4. Characteristics of the Product: green, natural, unpolluted and rich zinc - selenium.

5. Advocated improving the zoology agriculture and the unpolluted, safe, high quality green food.

6. Visitors seeking deserted and unpolluted beaches and a laid - back atmosphere should go elsewhere.

7. Relaxation is guaranteed from a tour unpolluted land with blue sky, clear water and fresh air.

8. Their city's blue waters are so unpolluted that swimming and fishing are possible in center.

9. Scenic , unpolluted, and prosperous: who could ask for anything more?

10. Rain is slightly acidic even in unpolluted air, because carbon dioxide in the atmosphere and other natural acid-forming gases dissolve in the water.

11. Here we present observations of a large summer minimum in ozone concentration in the unpolluted marine boundary layer of the Southern Hemisphere.

12. Skim milk distributed at retail is frequently a reconstituted product prepared from nonfat dry solids and unpolluted water.

13. There is no chemical fertilizer, pesticide or artificial additive in the course of growing and producing the celery which is natural, unpolluted and healthy.

14. All the materials at the restaurant come from the unpolluted Wutela Prairie in Inner Mongolia.

15. Unindustrialized, the Hainan Island is called "a few clean lands unpolluted" in the world.

16. They even sought to keep the environs clean and the drains unpolluted.

17. Its mutton , for example,(sentencedict.com) comes from sheep raised on the relatively unpolluted Mongolian plains.

18. There is no chemical fertilizer, pesticide or artificial additive in the course of growing and producing the bitter buckwheat sprout which is natural, unpolluted and healthy.

19. I envy your peace of mind, your clean conscience, your unpolluted memory.