- Industry: Government
- Number of terms: 3992
- Number of blossaries: 2
- Company Profile:
A dosage of air pollution scientifically determined to protect against human health effects such as asthma, emphysema, and cancer.
Industry:Pollution control
A day that is not officially determined by meteorologists and air quality managers to be a no-burn day. Burn days vary by air basin on any given day. For more information, please view our smoke management program website.
Industry:Pollution control
A demonstration of whether a federally-supported activity is consistent with the State Implementation Plan (SIP) -- per Section 176 (c) of the Clean Air Act. Transportation conformity refers to plans, programs, and projects approved or funded by the Federal Highway Administration or the Federal Transit Administration. General conformity refers to projects approved or funded by other federal agencies.
Industry:Pollution control
A department within the California Environmental Protection Agency that is responsible for evaluating chemicals for adverse health impacts and establishing safe exposure levels. OEHHA also assists in performing health risk assessments and developing risk assessment procedures for air quality management purposes. Please visit OEHHA's home page.
Industry:Pollution control
A document that identifies the risks and quantities of possible adverse health effects that may result from exposure to emissions of toxic air contaminants. A health risk assessment cannot predict specific health effects; it only describes the increased possibility of adverse health effects based on the best scientific information available.
Industry:Pollution control
A criteria air pollutant consisting of small particles with an aerodynamic diameter less than or equal to a nominal 10 microns (about 1/7 the diameter of a single human hair). Their small size allows them to make their way to the air sacs deep within the lungs where they may be deposited and result in adverse health effects. PM10 also causes visibility reduction. For more information, please view our particulate matter brochure.
Industry:Pollution control
A county agency with authority to regulate stationary, indirect, and area sources of air pollution (e.g., power plants, highway construction, and housing developments) within a given county, and governed by a district air pollution control board composed of the elected county supervisors. (See also air quality management district).
Industry:Pollution control
A control measure adopted by the ARB (Health and Safety Code Section 39666 et seq. ), which reduces emissions of toxic air contaminants. For more information please see our ATCM top page.
Industry:Pollution control
A comprehensive term for the various ways acidic compounds precipitate from the atmosphere and deposit onto surfaces. It can include: 1) wet deposition by means of acid rain, fog, and snow; and 2) dry deposition of acidic particles (aerosols).
Industry:Pollution control
A combination of smoke and other particulates, ozone, hydrocarbons, nitrogen oxides, and other chemically reactive compounds which, under certain conditions of weather and sunlight, may result in a murky brown haze that causes adverse health effects. The primary source of smog in California is motor vehicles.
Industry:Pollution control
