| D009313 |
National Health Programs |
Components of a national health care system which administer specific services, e.g., national health insurance. |
National Health Insurance, Non-U.S.,Health Services, National,National Health Insurance,National Health Insurance, Non U.S.,National Health Services,Services, National Health,Health Insurance, National,Health Program, National,Health Programs, National,Health Service, National,Insurance, National Health,National Health Program,National Health Service,Program, National Health,Programs, National Health,Service, National Health |
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| D009589 |
Nitrogen Oxides |
Inorganic oxides that contain nitrogen. |
Nitrogen Oxide,Oxide, Nitrogen,Oxides, Nitrogen |
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| D010126 |
Ozone |
The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE). |
Ground Level Ozone,Low Level Ozone,Tropospheric Ozone,Level Ozone, Ground,Level Ozone, Low,Ozone, Ground Level,Ozone, Low Level,Ozone, Tropospheric |
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| D002170 |
Canada |
The largest country in North America, comprising 10 provinces and three territories. Its capital is Ottawa. |
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| D006285 |
Health Planning |
Planning for needed health and/or welfare services and facilities. |
Health and Welfare Planning,National Health Planning and Resources Development Act of 1974,Planning, Health and Welfare,State Health Planning, United States,PL93-641,Public Law 93-641,Planning, Health,Public Law 93 641 |
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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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