| D011886 |
Radon |
A naturally radioactive element with atomic symbol Rn, and atomic number 86. It is a member of the noble gas family found in soil, and is released during the decay of RADIUM. |
Actinon,Thoron (Element) |
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| D003120 |
Colorado |
State bounded on the north by Wyoming and Nebraska, on the east by Kansas and Nebraska, on the south by New Mexico and Oklahoma, and on the west by Utah. |
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| D006798 |
Housing |
Living facilities for humans. |
Family-Patient Lodging,Patient-Family Lodging,Family Patient Lodging,Family-Patient Lodgings,Lodging, Family-Patient,Lodging, Patient-Family,Lodgings, Family-Patient,Lodgings, Patient-Family,Patient Family Lodging,Patient-Family Lodgings |
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| D000393 |
Air Pollutants |
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or materials. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS. |
Air Pollutant,Air Pollutants, Environmental,Environmental Air Pollutants,Environmental Pollutants, Air,Air Environmental Pollutants,Pollutant, Air,Pollutants, Air,Pollutants, Air Environmental,Pollutants, Environmental Air |
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| D000396 |
Air Pollutants, Radioactive |
Pollutants present in air which exhibit radioactivity. |
Radioactive Air Pollutants,Pollutants, Radioactive Air |
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| D012621 |
Seasons |
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Seasonal Variation,Season,Seasonal Variations,Variation, Seasonal,Variations, Seasonal |
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