| D010578 |
Petroleum |
Naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants. |
Crude Oil,Crude Oils,Oil, Crude,Oils, Crude,Petroleums |
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| D012137 |
Respiratory System |
The tubular and cavernous organs and structures, by means of which pulmonary ventilation and gas exchange between ambient air and the blood are brought about. |
Respiratory Tract,Respiratory Systems,Respiratory Tracts,System, Respiratory,Tract, Respiratory |
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| D012140 |
Respiratory Tract Diseases |
Diseases involving the RESPIRATORY SYSTEM. |
Respiratory Diseases,Respiratory System Diseases,Disease, Respiratory System,Disease, Respiratory Tract,Respiratory System Disease,Respiratory Tract Disease |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D000397 |
Air Pollution |
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS. |
Air Quality,Air Pollutions,Pollution, Air |
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| D012906 |
Smoke |
Visible gaseous suspension of carbon and other particulate matter emitted from burning substances. |
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| D014026 |
Nicotiana |
A plant genus of the family SOLANACEAE. Members contain NICOTINE and other biologically active chemicals; the dried leaves of Nicotiana tabacum are used for SMOKING. |
Tobacco Plant,Nicotiana tabacum,Plant, Tobacco,Plants, Tobacco,Tobacco Plants |
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