- 行业: Government
- Number of terms: 3992
- Number of blossaries: 2
- Company Profile:
Lo studio della comparsa e della distribuzione della malattia all'interno di una popolazione.
Industry:Pollution control
A large group of chemical compounds containing mainly carbon, hydrogen, nitrogen, and oxygen. All living organisms are made up of organic compounds.
Industry:Pollution control
A health effect that occurs over a relatively short period of time (e.g., minutes or hours). The term is used to describe brief exposures and effects which appear promptly after exposure.
Industry:Pollution control
A legal limit that specifies the maximum level and time of exposure in the outdoor air for a given air pollutant and which is protective of human health and public welfare (Health and Safety Code section 39606b). CAAQSs are recommended by the California Office of Environmental Health Hazard Assessment and adopted into regulation by the CARB. CAAQSs are the standards which must be met per the requirements of the California Clean Air Act (CCAA). For more information, please view our AAQS website.
Industry:Pollution control
A layer of warm air in the atmosphere that prevents the rise of cooling air and traps pollutants beneath it.
Industry:Pollution control
A layer of ozone in the lower portion of the stratosphere -- 12 to 15 miles above the Earth's surface -- which helps to filter out harmful ultraviolet rays from the sun. It may be contrasted with the ozone component of photochemical smog near the Earth's surface which is harmful.
Industry:Pollution control
A land area with generally similar meteorological and geographic conditions throughout. To the extent possible, air basin boundaries are defined along political boundary lines and include both the source and receptor areas. California is currently divided into 15 air basins.
Industry:Pollution control
A health effect that occurs over a relatively long period of time (e.g., months or years). (See also acute health effect. )
Industry:Pollution control
A health effect from exposure to air contaminants that may range from relatively mild temporary conditions, such as eye or throat irritation, shortness of breath, or headaches to permanent and serious conditions, such as birth defects, cancer or damage to lungs, nerves, liver, heart, or other organs.
Industry:Pollution control
A group of diseases characterized by uncontrolled invasive growth of body cells leading to the formation of malignant tumors that tend to grow rapidly and spread (i.e., metastasize).
Industry:Pollution control
